Thank you for choosing this Mitsubishi inverter. This instruction manual provides instructions for advanced use of the FR-A700 series inverters. Incorrect handling might cause an unexpected fault. Before using the inverter, always read this instruction manual to use the equipment to its optimum.
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Electric Shock Prevention WARNING: ● While power is on or when the inverter is running, do not open the front cover. Otherwise you may get an electric shock. ● Do not run the inverter with the front cover removed. Otherwise, you may access the exposed high-voltage terminals or the charging part of the circuitry and get an electric shock.
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After that derate by 3% for every extra 500m up to 2500m (91%) Vibration 5.9m² or less (conforming to JIS C 60068-2-6) Temperature applicable for a short time, e.g. in transit. 2.9m/s² or less for the 04320 or more. FR-A700 EC...
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Wiring CAUTION: ● Do not install assemblies or components (e. g. power factor correction capacitors) on the inverter output side, which are not approved from Mitsubishi. ● The direction of rotation of the motor corresponds to the direction of rotation commands (STF/STR) only if the phase sequence (U, V, W) is maintained.
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● When the protective function is activated (i. e. the frequency inverter switches off with an error message), take the corresponding corrective action as described in the inverter manual, then reset the inverter, and resume operation. FR-A700 EC...
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Maintenance, inspection and parts replacement CAUTION: ● Do not carry out a megger (insulation resistance) test on the control circuit of the inverter. Disposing the inverter CAUTION: ● Treat as industrial waste. General instructions Many of the diagrams and drawings in instruction manuals show the inverter without a cover, or partially open.
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Contents Parameter Parameter overview ..........6-1 Control mode .
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Pr. 453 to Pr. 463, Pr. 684, Pr. 859, Pr. 860) ....6-222 6.12.4 Online auto tuning (Pr. 95, Pr. 574) ......6-236 FR-A700 EC...
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Contents 6.13 Motor brake and stop operation ........6-241 6.13.1 DC injection brake and zero speed control, servo lock (LX signal, X13 signal, Pr.
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6.22.2 Operation mode at power on (Pr. 79, Pr. 340) ....6-427 6.22.3 Operation command source and speed command source during communication operation (Pr. 338, Pr. 339, Pr. 550, Pr. 551) ..6-429 FR-A700 EC XIII...
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Contents 6.23 Communication operation and setting ......6-437 6.23.1 PU connector ......... .6-437 6.23.2 RS-485 terminals .
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Measurement of converter output voltage (across terminals P/+ and N/–) ......7-34 FR-A700 EC...
Inverter Type Symbol Voltage Class Symbol Type number Three-phase 00023 A740 400V class 5-digit display 12120 I001410E Fig. 1-1: Inverter type FR-A740 EC FR-A700 EC 1 - 1...
Description of the Case Product Checking and Part Identification Description of the Case Cooling fan (refer to section 8.1.7) USB connector (refer to section 6.23.8) PU connector RS-485 terminals (refer to section 3.5) Connector for plug-in option connection (Refer to the instruction manual of options.) Voltage/current input switch (refer to section 3.1) AU/PTC-switchover...
For models 01800 or more the supplied DC reactor has to be installed. Eyebolts Two eyebolts (M8) for hanging the inverter are delivered with the models 00770 to 06830. Jumper A jumper is delivered with the model 01800 (refer to section 3.3.1). FR-A700 EC 1 - 3...
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Description of the Case Product Checking and Part Identification 1 - 4...
Remove operation panel Loosen the screws I000991E Fig. 2-1: Removal and reinstallation of the operation panel When reinstalling the operation panel, insert it straight to reinstall securely and tighten the fixed screws of the operation panel. FR-A700 EC 2 - 1...
Removal and reinstallation of the front cover Installation Removal and reinstallation of the front cover 2.2.1 FR-A740-00023 to 00620-EC Removal Loosen the installation screws of the front cover. Pull the front cover toward you to remove by pushing an installation hook using left fixed hooks as supports.
Loosen the screw of front Loosen the screw of front Remove front cover cover 1 cover 2 Installation hook Front cover 1 Front cover 2 I000994E Fig. 2-4: Removal of the front cover FR-A700 EC 2 - 3...
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Removal and reinstallation of the front cover Installation Reinstallation Insert the two fixed hooks on the left side of the front cover 2 into the sockets of the inverter. Using the fixed hooks as supports, securely press the front cover 2 against the inverter. (Although installation can be done with the operation panel mounted, make sure that a connector is securely fixed.) Fix the front cover 2 with the installation screws.
Transportation by holding Oil mist, flammable gas, Mounting to combustible inverters, install them in the front cover corrosive gas, fluff, dust, etc. material parallel.) I000998E Fig. 2-7: Conditions, that could cause an operation fault or failure FR-A700 EC 2 - 5...
Enclosure design Installation Enclosure design When an inverter enclosure is to be designed and manufactured, heat generated by contained equipment, etc., the environment of an operating place, and others must be fully considered to determine the enclosure structure, size and equipment layout. The inverter unit uses many semiconductor devices.
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If the inverter is exposed to corrosive gas or to salt near a beach, the printed board patterns and parts will corrode or the relays and switches will result in poor contact. In such places, take the measures against dust, dirt, oil mist. FR-A700 EC 2 - 7...
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Enclosure design Installation Explosive, flammable gases As the inverter is non-explosion proof, it must be contained in an explosion proof enclosure. In places where explosion may be caused by explosive gas, dust or dirt, an enclosure cannot be used unless it structurally complies with the guidelines and has passed the specified tests. This makes the enclosure itself expensive (including the test charges).
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Forced ventilation For general indoor installation. Appropriate for enclosure downsizing and cost reduction, and often used. I001003E Heat pipe Totally enclosed type for enclosure downsizing. heat pipe I001004E Tab. 2-2: Cooling system types for inverter enclosure FR-A700 EC 2 - 9...
Enclosure design Installation 2.4.2 Inverter placement Clearances around the inverter Always observe the specified minimum clearances to ensure good heat dissipation and ade- quate accessibility of the frequency inverter for servicing. Ambient temperature and humidity Clearances (side) Clearances (front) Measurement 01800 or less 02160 or more position...
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(Air passes through areas of low resistance. Make an air- way and airflow plates to expose the inverter to cool air.) Inverter Inverter Good example! Bad example! I001007E Fig. 2-10: Placement of ventilation fan and inverter FR-A700 EC 2 - 11...
Enclosure design Installation 2.4.3 Heatsink protrusion attachment (FR-A7CN) When encasing the inverter in an enclosure, the generated heat amount in an enclosure can be greatly reduced by installing the heatsink portion of the inverter outside the enclosure. When in- stalling the inverter in a compact enclosure, etc., this installation method is recommended. For the FR-A740-00023 to 03610, a heatsink can be protruded outside the enclosure using a heatsink protrusion attachment (FR-A7CN).
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● Having a cooling fan, the cooling section which comes out of the enclosure can not be used in the environment of waterdrops, oil, mist, dust, etc. ● Be careful not to drop screws, dust etc. into the inverter and cooling fan section. FR-A700 EC 2 - 13...
(ground) cable by Install this as required. Compatible with the 01800 or less. returning it to the earth (ground) terminal of the Compatible with the 02160 or more. inverter. I001435E Fig. 3-1: System configuration overview FR-A700 EC 3 - 1...
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Inverter and peripheral devices Wiring NOTES Do not install a power factor correction capacitor or surge suppressor on the inverter output side. This will cause the inverter to trip or the capacitor and surge suppressor to be dam- aged. If any of the above devices are connected, immediately remove them. Electromagnetic Compatibility Operation of the frequency inverter can cause electromagnetic interference in the input and output that can be propagated by cable (via the power input lines), by wireless radiation to...
NF1250 xx 3P 1200 A NF1250 xx 3P 1200 A — FR-A740-10940-EC Rated current 1200 A — NF1600 xx 3P 1500 A NF1600 xx 3P 1600 A — FR-A740-12120-EC Rated current Tab. 3-1: Breakers and contactors FR-A700 EC 3 - 3...
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Inverter and peripheral devices Wiring Selections for use of the Mitsubishi 4-pole standard motor with power supply voltage of 400V AC 50Hz. Select the MCCB according to the inverter power supply capacity. Install one MCCB per inverter. The places with "xx" refer to the breaking capacity in case of short circuit. The correct selection must be done depending on the design of the power input wiring.
Option connector 2 It is recommended to use 2W1kΩ Option connector 3 when the frequency setting signal is Terminating changed frequently. (Permissible load resistor current 100 mA) I001436E Fig. 3-3: Terminal connection diagram of the inverter FR-A700 EC 3 - 5...
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Terminal connection diagram Wiring NOTES To prevent a malfunction due to noise, keep the signal cables more than 10cm away from the power cables. After wiring, wire offcuts must not be left in the inverter. Wire offcuts can cause an alarm, failure or malfunction. Always keep the inverter clean. When drilling mounting holes in an enclosure etc., take care not to allow chips and other for- eign matter to enter the inverter.
● The inverter operates only when either a DC reactor or jumper is connected. NOTE When connecting a dedicated brake resistor (FR-ABR) and brake unit (FR-BU, BU) remove jumpers across terminals PR-PX (00250 or less). FR-A700 EC 3 - 7...
Main circuit connection Wiring 3.3.2 Terminal layout and wiring FR-A740-00023 to 00126-EC FR-A740-00170 and 00250-EC Jumper Screw size M4 CHARGE lamp Jumper Jumper Jumper Screw size M4 CHARGE lamp L1 L2 L3 Screw size M4 Power supply Motor Power supply L1 L2 L3 Screw size M4 Motor...
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Jumper Screw size M10 Screw size Power supply Motor DC reactor L2 L3 Screw size M12 Power supply Motor (for option) DC reactor Screw size M10 I001437E I001344E Tab. 3-3: Terminal layout and wiring (2) FR-A700 EC 3 - 9...
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Main circuit connection Wiring FR-A740-04320 and 04810-EC FR-A740-05470 to 12120-EC Screw size M4 Screw size M4 CHARGE lamp CHARGE lamp Jumper Jumper Screw size M12 Screw size M12 Screw size Power supply Motor Power supply DC reactor Screw size M12 Motor (for option) DC reactor...
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Fig. 3-5: Combed shaped wiring cover NOTE Cut off the same numbers of lugs as wires. If you cut off unnecessary parts and no wires are connected, the protective structure (JEM 1030) of the inverter becomes open type (IP00). FR-A700 EC 3 - 11...
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Main circuit connection Wiring Cables and wiring length Select the recommended cable size to ensure that a voltage drop will be 2% max. If the wiring distance is long between the inverter and motor, a main circuit cable voltage drop will cause the motor torque to decrease especially at the output of a low frequency.
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A screw that has been tighten too tightly can cause a short circuit or malfunction due to the unit breakage. ● Use crimping terminals with insulation sleeve to wire the power supply and motor. FR-A700 EC 3 - 13...
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Main circuit connection Wiring Notes on earthing WARNING: Leakage currents flow in the inverter or the EMC filter respectively. To prevent an electric shock, the inverter, input filter and motor must be earthed. (This inverter must be earthed. Earthing must conform to the requirements of national and local safety regulations and electrical codes.
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Note that the motor windings are subjected to significantly higher loads when the motor is operated by inverter than with normal mains operation. The motors must be approved for inverter operation by the manufacturer (refer also to section 3.9.5). FR-A700 EC 3 - 15...
Main circuit connection Wiring 3.3.3 Separate power supply for the control circuit In an alarm condition the frequency inverter’s integrated alarm relay only remains active as long as there is a mains power supply on terminals R/L1, S/L2 and T/L3. If you want the alarm signal to remain active after the frequency inverter has been switched off a separate power supply for the control circuit is required, which should be connected as shown in the circuit diagram below.
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Power supply terminal block for the control circuit Main power supply I001026E Fig. 3-11: Detailed view of the terminals CAUTION: Never connect the power cable to the terminals in the lower stand. Doing so will damage the inverter. FR-A700 EC 3 - 17...
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Main circuit connection Wiring Position of the power supply terminal block for the control circuit 00310, 00380 00470, 00620 00770 to 12120 Power supply terminal block for the control circuit I001027E Fig. 3-12: Position of the power supply terminal block for the control circuit CAUTION: ●...
6-286 Note that restart setting is necessary for this instantaneous operation. In the initial setting, a restart is power failure disabled. (Refer to Pr. 57 in section 6.16.) Tab. 3-6: Input signals (1) FR-A700 EC 3 - 19...
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Control circuit specifications Wiring Rated Terminal Name Description Refer to Specifications A determined control function is activated, if the corresponding terminal is connected to the terminal SD (sink logic). The SD terminal is External transistor isolated from the digital circuits via opto cou- common, contact plers.
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Application of voltage with switch on (current input specifica- tion) or current with switch off (voltage input specification) could lead to damage to the inverter or analog circuit of external devices. (For details, refer to section 6.20.2.) FR-A700 EC 3 - 21...
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Control circuit specifications Wiring Output signals Rated Terminal Name Description Refer to Specifications Relay output 1 The alarm is output via relay contacts. The A1, B1, C1 6-298 Contact (alarm output) block diagram shows the normal operation and capacity: voltage free status. If the protective function is 230V/0.3A AC activated, the relay picks up.
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The FR-Configurator can be performed by connecting the inverter to the personnel computer through USB. — USB connector Interface: Conforms to USB1.1 6-487 Transmission speed: 12Mbps Connector: USB B connector (B receptacle) Tab. 3-8: Communication signals FR-A700 EC 3 - 23...
Control circuit specifications Wiring 3.4.1 Changing the control logic The input signals are set to source logic (SOURCE) when shipped from the factory. To change the control logic, the jumper connector on the control circuit terminal block must be moved to the other position. (The output signals may be used in either the sink or source logic independently of the jumper connector position.) I001028E...
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SINK SOURCE FR-A740 DC input (sink type) FR-A740 DC input (source type) AX40 AX80 Current Current I001029E Fig. 3-14: Changing the control logic FR-A700 EC 3 - 25...
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Control circuit specifications Wiring Using an external power supply ● Sink logic type Use terminal PC as a common terminal to prevent a malfunction caused by undesirable current. (Do not connect terminal SD of the inverter with terminal 0V of the external power supply.
Edge thickness: 0,4mm × 2,5mm Tab. 3-9: Connection to the terminals CAUTION: Under tightening can cause cable disconnection or malfunction. Over tightening can cause a short circuit or malfunction due to damage to the screw or unit. FR-A700 EC 3 - 27...
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Control circuit specifications Wiring Common terminals of the control circuits PC, 5, SE Terminals PC, 5, and SE are all common terminals (0V) for I/O signals and are isolated from each other. Avoid connecting the terminal PC and 5 and the terminal SE and 5. Terminal PC is a common terminal for the contact input terminals (STF, STR, STOP, RH, RM, RL, JOG, RT, MRS, RES, AU, CS).
Make cuts in rubber bush of the inverter side and lead wires. Wiring Rubber bush (view from the inside) Make cuts along the lines inside with a cutter knife and such. I001022E Fig. 3-21: Wiring of the control circuit of the 02160 or more FR-A700 EC 3 - 29...
Connecting the operation panel using a connection cable Wiring Connecting the operation panel using a connection cable When connecting the operation panel (FR-DU07) to the inverter using a cable, the operation panel can be mounted on the enclosure surface and operationally improves. Fig.
Tab. 3-10: Specifications of the RS-485 terminal block Terminating resistor switch Factory-set to "OPEN". Set only the terminating resistor switch of the first and the remotest inverter to the "100Ω" position. I001033E Fig. 3-23: RS-485 terminal block FR-A700 EC 3 - 31...
RS-485 terminal block Wiring 3.6.1 Communication operation Using the PU connector or RS-485 terminal, you can perform communication operation from a personal computer etc. When the PU connector is connected with a personal, FA or other com- puter by a communication cable, a user program can run and monitor the inverter or read and write to parameters.
Tab. 3-11: USB connector specification USB connector USB cable Removal of cover Place a flat-blade screwdriver, etc. in a slot and push up the cover to open. I001460E Abb. 3-25: Connection to the USB interface FR-A700 EC 3 - 33...
Connection of motor with encoder (vector control) Wiring Connection of motor with encoder (vector control) Following fuctions can be performed by full-scale vector control operation using a motor with en- coder and a plug-in option FR-A7AP. ● Orientation control ● Encoder feedback control ●...
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If the encoder output type is differential line driver, set the terminating resistor switch to the "OFF" position when sharing the same encoder with other unit (NC (numerical controller), etc) or a terminating resistor is connected to other unit. FR-A700 EC 3 - 35...
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Connection of motor with encoder (vector control) Wiring Encoder Specification Terminating Resistor Power Motor Selection Switch Selection Switch Specifications (SW1) (SW2) SF-JR Differential Mitsubishi standard motor SF-HR Differential Mitsubishi high effici- ency motor Others SF-JRCA Differential Mitsubishi constant- SF-HRCA Differential torque motor Others Vector control dedi-...
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Wire the stripped cable after twisting it to prevent it from becoming loose. In addition, do not sol- der it. Use a bar terminal as necessary. Fig. 3-30: Cable stripping size I001326E Connection to the option FR-A7AP Motor SF-JR/HR/JRCA/HRCA (with Encoder) Encoder Cable FR-JCBL FR-A7AP-terminal Tab. 3-15: Connection terminal compatibility table FR-A700 EC 3 - 37...
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Connection of motor with encoder (vector control) Wiring Wiring ● Speed control Standard motor with encoder (SF-JR), Vector control dedicated motor, 5V differential line driver 12V complimentary Inverter SF-JR motor with encoder Inverter Three-phase AC power supply Earth Forward rotation start Reverse rotation startf Earth Contact input common...
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When performing orientation control together, an encoder and power supply can be shared. For terminal compatibility of the FR-JCBL and FR-A7AP, refer to page 3-37. NOTE The figure above shows the connection when using sink logic. FR-A700 EC 3 - 39...
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Connection of motor with encoder (vector control) Wiring ● Position control Vector control dedicated motor, 12V complimentary Inverter Positioning unit MELSEC QD75P1 Three-phase AC power supply Earth Forward stroke end Reverse stroke end Pre-excitation/servo on Clear signal Pulse train Sign signal Encoder Differential 24V DC power supply...
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(as near as the inverter) with a P clip or U clip made of metal. Fig. 3-31: Earthing (grounding) example using a P clip Encoder cable Shield P clip I001448E NOTE For details of the optional encoder dedicated cable (FR-JCBL), refer to page 3-37. FR-A700 EC 3 - 41...
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Connection of motor with encoder (vector control) Wiring Parameter for encoder (Pr. 359, Pr. 369) Initial Pr. No. Name Setting Range Description Value Forward rotation is clockwise rotation when viewed from A. Encoder Encoder rotation direction Forward rotation is counterclockwise rotation when viewed from A.
Since repeated inrush currents at power on will shorten the life of the converter circuit (switching life is about 1,000,000 times.), frequent starts and stops of the MC must be avoided. Turn on/off the inverter start controlling terminals (STF, STR) to run/stop the inverter. FR-A700 EC 3 - 43...
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Connection of stand-alone option units Wiring Example As shown below, always use the start signal (ON or OFF across terminals STF or STR-PC) to make a start or stop. (Refer to section 6.14.4.) Inverter Power To the supply motor Operation preparation Start-/Stop- Operation Stop...
Connect the brake resistor across terminals P/+ and PR. (The jumper should remain disconnected.) Removal of jumper Connection of Brake Resistor Terminal P/+ Terminal PR Jumper Terminal PR Brake resistor Terminal PX I001451E I001452E Tab. 3-21: Connection of the external brake resistor (00023 to 00126) FR-A700 EC 3 - 45...
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Connection of stand-alone option units Wiring FR-A740-00170 and 00250 Remove the screws in terminals PR and PX and remove the jumper. Schließen Sie den Bremswiderstand an den Klemmen P/+ und PR an. (Die Brücke muss abgeklemmt bleiben.) Removal of jumper Connection of Brake Resistor Terminal P/+ Terminal PR...
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TH-N20CXHZKP-2.5A FR-ABR-H11K on request FR-ABR-H15K on request FR-ABR-H22K on request Tab. 3-24: Combination of resistor and thermal relay Fig. 3-34: Connection of th thermal relay To the inverter P/+ To the brake terminal resistor I001458E FR-A700 EC 3 - 47...
Connection of stand-alone option units Wiring 3.8.3 Connection of a brake unit When connecting a brake unit to improve the brake capability at deceleration, make connection as shown below. Connection with the brake unit FR-BU (01800 or less) Inverter 3-phase AC power supply ≤...
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● The brake unit which uses multiple resistor units has terminals equal to the number of resistor units. Connect one resistor unit to one pair of terminal (P, PR). FR-A700 EC 3 - 49...
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Connection of stand-alone option units Wiring Inserting the CN8 connector Make cuts in the rubber bush for leading the CN8 connector cable with a nipper or cutter knife. Rubber bushes Make cuts in rubber bush I001348E Fig. 3-37: Rubber bush Insert a connector on the MT-BU5 side through a rubber bush to connect to a connector on the inverter side.
The voltage phases of terminals R/L1, S/L2, T/L3 and terminals R4, S4, T4 must be matched. Use sink logic when the FR-HC is connected. The FR-HC cannot be connected when source logic (factory setting) is selected. FR-A700 EC 3 - 51...
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Connection of stand-alone option units Wiring Connection with the MT-HC (02160 or more) Inverter 3-phase AC power supply Insulated transformer I001351E Fig. 3-40: Connection with the MT-HC Remove the jumper across terminals R-R1, S-S1 of the inverter, and connect the control circuit power supply to the R1 and S1 terminals.
The voltage phases of terminals R/L11, S/L21, T/MC1 and terminals R2/L1, S2/L2, T2/L3 must be matched. Use sink logic when the FR-CV is connected. The FR-CV cannot be connected when source logic (factory setting) is selected. FR-A700 EC 3 - 53...
Connection of stand-alone option units Wiring 3.8.6 Connection of power regeneration converter (MT-RC) (02160 or more) When connecting a power regeneration converter (MT-RC), perform wiring securely as shown below. CAUTION: Perform wiring of the power regeneration converter (MT-RC) securely as shown below. Incorrect connection will damage the power regeneration converter and inverter.
P-P1. For the 01800 or more, a DC reactor is supplied. Always install the reactor. NOTES The wiring length between the FR-HEL and inverter should be 5m maximum and minimized. Use the same wire size as that of the power supply wire (R/L1, S/L2, T/L3). (Refer to page 3-12). FR-A700 EC 3 - 55...
When the wiring length is long (50m or more) for the small-capacity model (FR-A700-00250 or less), the external thermal relay is likely to operate unnecessarily because the ratio of the leakage current to the rated motor current increases.
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The earth leakage breaker must be either a Mitsubishi earth leakage breaker (ELB, for har- monics and surges) or an ELB with breaker designed for harmonic and surge suppression that is approved for use with frequency inverters. FR-A700 EC 3 - 57...
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Electromagnetic compatibility (EMC) Wiring Note on selecting a suitable power supply ELCB If you install a Mitsubishi frequency inverter with a 3-phase power supply in locations where an earth leakage contact breaker is required by the VDE you must install a universal-current sen- sitive ELCB conforming to the specifications laid down in VDE 0160 / EN 50178 (ELCB Type B).
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Input power conditions (400V class: 440V/60Hz, power supply unbalance within 3%) Built-in EMC Filter Voltage [V] ON [mA] OFF [mA] Phase grounding Earth-neutral system Tab. 3-27: Inverter leakage current (with and without built-in EMC filter) FR-A700 EC 3 - 59...
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Electromagnetic compatibility (EMC) Wiring NOTES The frequency inverter monitors its own output for ground faults up to a frequency of 120Hz. However, it is important to understand that this feature only protects the inverter itself. It can- not be used to provide protection against shock hazards for personnel. In the connection earthed-neutral system, the sensitivity current is purified against an earth fault in the inverter output side.
– those radiated by the cables connected to the inverter and inverter main circuits (I/O), – those electromagnetically and electrostatically induced to the signal cables of the peripheral devices close to the main circuit power supply, – and those transmitted through the power supply cables. FR-A700 EC 3 - 61...
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Electromagnetic compatibility (EMC) Wiring Inverter Noise directly radiated Air propagated ... Path generated noise from inverter noise Noise radiated from ... Path power supply cable Noise radiated from mo- ... Path tor connection cable Electromagnetic ... Path induction noise Electrostatic ...
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30cm. (at least 10cm) Use a twisted pair shielded cable Power Control supply for Sensor power supply sensor Do not earth shield but connect it to signal common cable. I001050E Fig. 3-49: Noise reduction examples FR-A700 EC 3 - 63...
Electromagnetic compatibility (EMC) Wiring 3.9.3 EMC filter The inverter is equipped with a built-in EMC filter and zero-phase reactor. Effective for reduction of air-propagated noise on the input side of the inverter. The EMC filter is factory-set to enable (ON). To disable it, fit the EMC filter ON/OFF connector to the OFF position. The filter must be deactivated when the inverter is used in networks with an isolated neutral (IT networks).
Electromagnetic compatibility (EMC) Wiring 3.9.5 Inverter-driven 400V class motor In the PWM type inverter, a surge voltage attributable to wiring constants is generated at the mo- tor terminals. Especially for a 400V class motor, the surge voltage may deteriorate the insula- tion.
Operation Precautions for use of the inverter The FR-A700 series is a highly reliable product, but incorrect peripheral circuit making or op- eration/handling method may shorten the product life or damage the product. Before starting operation, always recheck the following items.
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Precautions for use of the inverter Operation ● A short circuit or earth fault on the inverter output side may damage the inverter modules. – Fully check the insulation resistance of the circuit prior to inverter operation since repeated short circuits caused by peripheral circuit inadequacy or an earth fault caused by wiring inadequacy or reduced motor insulation resistance may damage the inverter modules.
When protecting the motor from overheat by the inverter, set Pr. 9 "Electronic thermal O/L relay". (Refer to section 5.1.1.) When the rated frequency of the motor is not 50Hz, set Pr. 3 "Base frequency" (Refer to section 5.1.2.) FR-A700 EC 4 - 3...
Operation panel FR-DU07 Operation Operation panel FR-DU07 4.3.1 Parts of the operation panel LED-Display 4-digit 7-segment display for opera- tional values, parameter numbers, etc. Unit indication LED to indicate the current unit Frequency Current Voltage Operation mode indication LED to indicate the operation mode PU operation mode (PU) External operation mode (EXT) Network operation mode (NET)
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Operation mode switch this key to light up the EXT indication. (Change the Pr. 79 value to over use the combined mode.) PU: PU operation mode EXT: External operation mode Tab. 4-1: Keys of the operation panel FR-A700 EC 4 - 5...
Operation panel FR-DU07 Operation 4.3.2 Basic operation (factory setting) Operation mode switch over At powering on (external operation mode) PU Jog operation mode (Refer to page 4-10.) Example Value change and frequency flicker PU operation mode (output frequency monitor) Frequency setting has been written and completed! Output current monitor Output voltage monitor...
To make the digital dial and key operation valid again, press the MODE key for 2s. NOTE Set "10 or 11" (key lock mode valid) in Pr. 161 "Frequency setting/key lock operation selec- tion". FR-A700 EC 4 - 7...
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Operation panel FR-DU07 Operation Operation Display Screen at powering on The monitor display appears. PU indication is lit. Press the PU/EXT key to choose the PU operation mode. The parameter number Press the MODE key to choose the parameter read previously appears.
(To return to the output frequency monitor, hold down the SET key for 1s after displaying the out- put frequency monitor.) 4.3.6 Digital dial push Push the digital dial to display the set frequency currently set. Fig. 4-7: Display the set frequency currently set I001067E FR-A700 EC 4 - 9...
Operation panel FR-DU07 Operation 4.3.7 Change the parameter setting value Example Change the Pr. 1 "Maximum frequency". Operation Display Screen at powering on The monitor display appears. PU indication is lit. Press the PU/EXT key to choose the PU operation mode. The parameter number Press the MODE key to choose the parameter read previously...
Fig. 4-9: Parameter clear Possible faults: ● "1" and "Er4" are displayed alternately. – The inverter is not in the PU operation mode. Press the PU/EXT key. The PU indication is lit. Carry out operation from step again. FR-A700 EC 4 - 11...
Operation panel FR-DU07 Operation 4.3.9 All parameter clear ● Set "1" in ALLC "All parameter clear" to initialize all parameters. (Parameters are not cleared when "1" is set in Pr. 77 "Parameter write selection". In addition, calibration parameters are not cleared.) ●...
Tab. 4-2: Setting of parameter PCPY NOTES When the copy destination inverter is not the FR-A700 series or parameter copy write is per- formed after parameter read is stopped,"model error (rE4)" is displayed. Refer to the extended parameter list Tab. 6-1 for availability of parameter copy.
Operation panel FR-DU07 Operation 4.3.11 Parameter copy Multiple inverters and parameter settings can be copied. Operation Display Connect the operation panel to the copy source inverter. Connect it during a stop. The parameter number Press the MODE key to choose the parameter read previously setting mode.
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● "rE4" appears. – The copy destination inverter is no FR-A700 model or the parameter write disable function is activated in parameter 77. Set "0" in Pr. 160 "User group read selection" and set Pr. 77 "Parameter write selection" to "0" or "2".
I001116E Fig. 4-12: Parameter verification Possible faults: ● "rE3" appears. – Set frequencies, etc. may be different. Check set frequencies. NOTE When the copy destination inverter is not the FR-A700 series, "model error rE4" is dis- played. 4 - 16...
(high speed) Set when changing the preset Multi-speed setting 0.01Hz 30Hz 0–400Hz speed in the parameter with a 5-51 (middle speed) terminal. Multi-speed setting 0.01Hz 10Hz 0–400Hz (low speed) Tab. 5-2: Simple mode parameters (1) FR-A700 EC 5 - 1...
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Simple mode parameter list Basic settings Incre- Initial Refer Name Range Description ments value Acceleration/deceleration time Acceleration time 0.1s 5/15s 0–3600s can be set. Initial values differ according to 5-10 Deceleration time 0.1s 10/30s 0–3600s the inverter capacity. (00250 or less/00310 or more) Protect the motor from overheat by the inverter.
By turning the digital dial, you can read another parameter. Press the SET key to show the setting again. Press the SET key twice to show the next parameter. I001068E Fig. 4-1: Setting of the electronic thermal O/L relay FR-A700 EC 5 - 3...
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Simple mode parameter list Basic settings NOTES Protective function by electronic thermal relay function is reset by inverter power reset and reset signal input. Avoid unnecessary reset and power-off. When two or more motors are connected to the inverter, they cannot be protected by the electronic thermal relay function.
Press the SET key twice to show the next parameter. I001102E Fig. 4-2: Setting the base frequency NOTE Pr. 3 is invalid under advanced magnetic flux vector control, real sensorless vector control, and vector control and Pr. 84 "Rated motor frequency" is valid. FR-A700 EC 5 - 5...
Simple mode parameter list Basic settings 5.1.3 Increase the starting torque (Pr. 0) Set this parameter when the motor with a load does not rotate, an alarm OL is output, resulting in an inverter trip due to OC1, etc. Setting Name Initial Value Description...
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(refer to section 6.7.2.) and 81 "Number of motor poles" and activate the real sensorless vector control by Pr. 800. The Pr. 0 setting is invalid under advanced magnetic flux vector control, real sensorless vector control and vector control. FR-A700 EC 5 - 7...
Simple mode parameter list Basic settings 5.1.4 Limit the maximum and minimum output frequency (Pr. 1, Pr. 2) Setting Name Initial Value Description Range 01800 or less 120Hz Set the upper limit of the output Maximum frequency 0–120Hz frequency. 02160 or more 60Hz Set the lower limit of the output Minimum frequency...
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If the Pr. 2 setting is higher than the Pr. 13 "Starting frequency" value, note that the motor will run at the set frequency according to the acceleration time setting by merely switching the start signal on, without entry of the command frequency. FR-A700 EC 5 - 9...
Simple mode parameter list Basic settings 5.1.5 Change the acceleration/deceleration time (Pr. 7, Pr. 8) Set in Pr. 7 "Acceleration time" a larger value for a slower speed increase and a smaller value for a faster speed increase. Set in Pr. 8 "Deceleration time" a larger value for a slower speed decrease and a smaller value for a faster speed decrease.
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By turning the digital dial, you can read another parameter. Press the SET key to show the setting again. Press the SET key twice to show the next parameter. I001104E Fig. 5-8: Setting the acceleration time FR-A700 EC 5 - 11...
Simple mode parameter list Basic settings 5.1.6 Operation mode (Pr. 79) Select the operation command location and frequency command location. LED Indication Initial Setting : OFF Name Description Value Range : ON External operation mode External/PU switch over mode Press the PU/EXT key to switch between the PU and external operation mode.
V/f control (advanced magnetic flux vector control) The initial value of the 00023 and 00038 is set to 85% of the rated inverter current. Use Pr. 178 to Pr. 189 to assign the terminals used for the X18 and MC signal. FR-A700 EC 5 - 13...
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Simple mode parameter list Basic settings If the following conditions are not satisfied, select V/f control since malfunction such as insuffi- cient torque and uneven rotation may occurr. ● The motor capacity should be equal to or one rank lower than the inverter capacity. ●...
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When higher accuracy operation is necessary, set online auto tuning after performing offline auto tuning and select real sensorless vector control. Use Pr. 89 to adjust the motor speed fluctuation at load fluctuation. (Refer to section 6.7.2.) FR-A700 EC 5 - 15...
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Simple mode parameter list Basic settings Selection method of real sensorless vector control (speed control) Perform secure wiring. (Refer to section 3.2) Set the motor (Pr. 71). (Refer to page 5-13.) Set "3" (standard motor) or "13" (constant-torque motor) in Pr. 71 "Applied motor".
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● For the 00023 to 00126, the speed deviation may become large at 20Hz or less and torque may become insufficient in the low speed region under 1Hz during contin- uous operation under real sensorless vector control. In such case, stop operation once and reaccelerate to improve the problems. FR-A700 EC 5 - 17...
Simple mode parameter list Basic settings 5.1.8 Higher accuracy operation using a motor with encoder (Vector control) (Pr. 9, Pr. 71, Pr. 80, Pr. 81, Pr. 359, Pr. 369, Pr. 800) Vector Vector Vector Full-scale vector control can be performed fitting the FR-A7AP and using a motor with encoder. Fast response/high accuracy speed control (zero speed control, servo lock), torque control, and position control can be performed.
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V/f control (advanced magnetic flux vector control) The initial value of the 00023 and 00038 is set to 85% of the rated inverter current. Use Pr. 178 to Pr. 189 to assign the terminals used for the X18 and MC signal. FR-A700 EC 5 - 19...
Page 140
Simple mode parameter list Basic settings If the conditions below are not satisfied, malfunction such as insufficient torque and uneven ro- tation may occur. ● The motor capacity should be equal to or one rank lower than the inverter capacity. ●...
Page 141
Select online auto tuning as required. (Pr.95) (Refer to section 5.1.10.) Select easy gain tuning as required. (Refer to page 5-33.) Select manual input speed control gain adjustment as required. (Refer to page 5-35.) Fig. 5-11: Selection of speed control FR-A700 EC 5 - 21...
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Simple mode parameter list Basic settings Selection method of torque control ● Torque control is exercised to develop torque as set in the torque command. ● The motor speed becomes constant when the motor output torque and load torque are balanced.
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Set the electronic gear as required. (Refer to section 6.5.4.) Perform setting of positioning adjustment parameter as required. (Refer to section 6.5.5.) Select gain adjustment of position control as required. (Refer to section 6.5.6.) Fig. 5-13: Selection of position control FR-A700 EC 5 - 23...
Simple mode parameter list Basic settings 5.1.9 To exhibit the best performance of the motor performance (offline auto tuning) (Pr. 9, Pr. 71, Pr. 83, Pr. 84, Pr. 96) Magnetic flux Magnetic flux Magnetic flux Sensorless Sensorless Sensorless Vector Vector Vector The motor performance can be maximized with offline auto tuning.
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01800 or less and sine wave filter connected to the 02160 or more between the inverter and motor. Remove it before starting tuning. ● When exercising vector control, use the encoder that is coupled directly to the motor shaft without looseness. Speed ratio should be 1 : 1. FR-A700 EC 5 - 25...
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Simple mode parameter list Basic settings Setting Set "1" or "101" in Pr. 96 "Auto tuning setting/status". ● When the setting is "1" Tuning is performed without motor running. It takes approximately 25 to 120s* until tuning is completed. (Excitation noise is produced during tuning.) (* Tuning time differs according to the inverter capacity and motor type.) ●...
Page 147
Do not perform ON/OFF switching of the second function selection signal (RT) during execu- tion of offline auto tuning. Auto tuning is not excecuted properly. Setting offline auto tuning (Pr. 96 "Auto tuning setting/status" = 1 or 101) will make pre-exci- tation invalid. FR-A700 EC 5 - 27...
Page 148
Simple mode parameter list Basic settings Display during tuning Monitor is displayed on the parameter unit (FR-DU07/FR-PU04/FR-PU07) during tuning as be- low. The monitored value is the value of parameter 96.. Parameter unit Parameter unit FR-PU07/FR-PU04 Display FR-DU07 Diesplay Pr. 96 Setting Tuning in progress...
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The set frequency monitor displayed during the offline auto tuning is 0Hz. CAUTION: ● Note that the motor may start running suddenly. ● When the offline auto tuning is used in vertical lift application, e.g. a lifter, it may drop due to insufficient torque. FR-A700 EC 5 - 29...
Simple mode parameter list Basic settings 5.1.10 High accuracy operation unaffected by the motor temperature (online auto tuning) Magnetic flux Magnetic flux Magnetic flux Sensorless Sensorless Sensorless Vector Vector Vector When online auto tuning is selected under advanced magnetic flux vector control, real sensor- less vector control or vector control, excellent torque accuracy is provided by temperature com- pensation even if the secondary resistance value of the motor varies with the rise of the motor temperature.
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The RUN signal is not output during online auto tuning. The RUN signal turns on at a start. If the period from an inverter stop to a restart is within 4s, start-time tuning is performed but the tuning results are not reflected. FR-A700 EC 5 - 31...
Simple mode parameter list Basic settings 5.1.11 To perform high accuracy / fast response operation (gain adjustment of real sensorless vector control) (Pr. 818 to Pr. 821, Pr. 880) Sensorless Sensorless Sensorless Vector Vector Vector The ratio of the load inertia to the motor inertia (load inertia moment ratio) is estimated in real time from the torque command and speed during motor operation by vector control.
Page 153
– No gear backlash nor belt looseness is found. Press the FWD or REV key to estimate the load inertia ratio or calculate gain any time. (The operation command for external operation is the STF or STR signal.) FR-A700 EC 5 - 33...
Page 154
Simple mode parameter list Basic settings Easy gain tuning execution procedure (Pr. 819 = 2 load inertia manual input) Easy gain tuning (load inertia ratio manual input) is valid only in the speed control under real sen- sorless vector control or in the speed control or position control mode under vector control. Set the load inertia ratio to the motor in Pr.
Page 155
Also, when there is load inertia, the actual speed gain decreases as indicated below. × -------------------- Actual speed gain speed gain of motor without load JM: Inertia of the motor JL: Motor shaft-equivalent load inertia FR-A700 EC 5 - 35...
Page 156
Simple mode parameter list Basic settings ● Adjustment procedures are as below: Check the conditions and simultaneously change the Pr. 820 value. If you cannot make proper adjustment, change the Pr. 821 value and repeat the step above. Phenomenon/Condition Adjustment Method Set the Pr.
Page 157
(5) Encoder power specifications (5) Check the power specifications (5V/12V/ are wrong. Or, power is not 15V/24V) of encoder and input the external input. power supply. Tab. 5-10: Troubleshooting (1) FR-A700 EC 5 - 37...
Page 158
Simple mode parameter list Basic settings Phenomenon Cause Countermeasures (1) The speed command from the (1) Check that a correct speed command command device is incorrect. comes from the command device. The speed command is com- Decrease Pr. 72 "PWM frequency selec- pounded with noise.
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(1) Adverse effect of high carrier (1) Decrease Pr. 72 "PWM frequency selec- Speed fluctuates at low frequency. tion". speed. (2) Low speed control gain. (2) Increase Pr. 820 "Speed control P gain 1". Tab. 5-10: Troubleshooting (3) FR-A700 EC 5 - 39...
PU operation mode Basic settings PU operation mode Fig. 5-16: Inverter PU operation mode Power Motor supply I001069E From where is the frequency command given? ● Operation at the frequency set in the frequency setting mode of the operation panel. (Refer to section 5.2.1.) ●...
The maximum output frequency is set in Pr. 1. (Refer to section 5.1.4). NOTES Press the digital dial to show the set frequency. The digital dial can also be used like a potentiometer to perform operation. (Refer to section 5.2.2.) FR-A700 EC 5 - 41...
PU operation mode Basic settings 5.2.2 Use the digital dial like a potentiometer to perform operation ● Set "1" (setting dial potentiometer mode) in Pr. 161 "Frequency setting/key lock operation selection". Example Change the frequency from 0Hz to 50Hz during operation. Operation Display Screen at powering on...
Fig. 5-19: Use switches to give the frequency command Speed 1 (high speed) Speed 5 Speed 6 Speed 2 (middle speed) Speed 4 Speed 2 (low speed) Speed 7 I000004aC Fig. 5-20: Multi-speed selection by external terminals FR-A700 EC 5 - 43...
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PU operation mode Basic settings Operation Display Screen at powering on The monitor display appears. Change the Pr. 79 setting to "4". (Refer to section 4.3.7 for change of the setting.) Press the start switch FWD or REV to give the start command.
● Use the FWD or REV key to give a start command. The frequency setting potentiometer is supplied with 5V of power from the inverter (terminal 10). Inverter Power Motor supply Frequency setting potentiometer I001075E Fig. 5-22: Frequency setting by analog voltage input FR-A700 EC 5 - 45...
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PU operation mode Basic settings Operation Display Screen at powering on The monitor display appears. Change the Pr. 79 setting to "4". (Refer to section 4.3.7 for change of the setting.) Press the start key FWD or REV. Operation status indication FWD or REV flickers. CAUTION: When both the forward and reverse key are pushed, the inverter will not start.
I001078E Fig. 5-24: Frequency setting by analog current input NOTE Turn the AU signal on to activate the analog current input (0/4 to 20mA). Use a jumper or the like as shown in Fig. 5-24. FR-A700 EC 5 - 47...
Page 168
PU operation mode Basic settings Operation Display Screen at powering on The monitor display appears. Change the Pr. 79 setting to "4". (Refer to section 4.3.7 for change of the setting.) Check that the terminal 4 input selection signal (AU) is on. Press the start key FWD or REV.
● Switch terminal STF (STR)-PC on to give a start command. ● Refer to section 5.2.1 for the set frequency by the operation panel. Inverter Power Motor supply Forward rotation start Reverse rotation start Set frequency I001490E Fig. 5-26: External operation FR-A700 EC 5 - 49...
Page 170
External operation Basic settings Operation Display Screen at powering on The monitor display appears. Change the Pr. 79 setting to "3". (Refer to section 4.3.7 for change of the setting.) Forward Reverse rotation rotation Turn the start switch (STF or STR) on. The motor runs at the frequency set in the set frequency mode of the operation panel.
Fig. 5-28: Frequency and start command by switches Speed 1 (High speed) Speed 5 Speed 6 Speed 2 (Middle speed) Speed 4 Speed 3 (Low speed) Speed 7 I000004aC Fig. 5-29: Multi-speed setting in dependence on the terminals FR-A700 EC 5 - 51...
Page 172
External operation Basic settings Example Set "40Hz" in Pr. 4 "Multi-speed setting (high speed)" and turn on terminals RH and STF (STR)-SD to operate. Operation Display Power on → operation mode check For the initial setting, the inverter operates in the external operation mode "EXT"...
Page 173
External operation is fixed by setting "2" (external operation mode) in Pr. 79 "Operation mode selection" when you do not want to take time pressing the PU/EXT key or when you want to use the current start command and frequency command. FR-A700 EC 5 - 53...
External operation Basic settings 5.3.3 Perform frequency setting by analog voltage input The frequency setting potentiometer is supplied with 5V of power from the inverter (terminal 10). Inverter Power Motor supply Forward rotation start Reverse rotation start Frequency setting potentiometer I001090E Fig.
Page 175
Pr. 178 "STF terminal function selection" must be set to "60" (or Pr. 179 "STR terminal func- tion selection" must be set to "61"). (All are initial values.) FR-A700 EC 5 - 55...
Page 176
External operation Basic settings Possible faults: ● The motor will not rotate. – Check that the EXT lamp is lit. The external operation mode is valid when Pr. 79 = 0 (initial value) or "2". Use the PU/EXT key to change into the external operation mode. –...
As other adjustment methods of frequency setting voltage gain, there are methods to adjust with a voltage applied to across terminals 2-5 and adjust at any point without a voltage applied. (Refer to section 6.20.5 for the setting method of calibration parameter C4.) FR-A700 EC 5 - 57...
External operation Basic settings 5.3.5 Perform frequency setting by analog current input ● Switch terminal STF (STR)-PC on to give a start command. ● Turn the AU signal on. ● Pr. 79 "Operation mode selection" must be set to "2" (external operation mode). Inverter Power Motor...
Page 179
– Check that wiring is correct. Check once again. NOTE Change the frequency (0Hz) of the minimum value of potentiometer (at 4mA, initial value) by adjusting the frequency in calibration parameter C5 "Terminal 4 frequency setting bias fre- quency". (Refer to section 6.20.5.) FR-A700 EC 5 - 59...
External operation Basic settings 5.3.6 Change the frequency (50Hz) of the maximum value of potentiometer (at 20mA) Example The frequency of the maximum analog current of the potentiometer (at 20mA) has to be changed from the initial setting of 50Hz to 40 Hz. Set 40Hz in Pr. 126. Operation Display Turn the digital dial until P.126 (Pr.
Set when performing operation at 120 Hz or more High speed maximum 120/ ✔ ✔ ✔ 0.01Hz 120–400Hz * The setting depends on the 60Hz * frequency inverter capacity: (01800 or less/02160 or more) Tab. 6-1: Parameter overview (1) FR-A700 EC 6 - 1...
Page 182
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Set the frequency when the motor ✔ ✔ ✔ Base frequency 0.01Hz 50Hz 0–400Hz...
Page 183
9999 Function invalid Set the deceleration time when the 0–3600/ 360s X9 signal is on. 0.1/ ✔ ✔ ✔ Third deceleration time 9999 0.01s Acceleration time = deceleration 9999 time Tab. 6-1: Parameter overview (3) FR-A700 EC 6 - 3...
Page 184
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Set the rated motor current. Rated Electronic thermal O/L * The setting depends on the 0.01/ inverter 0–500/...
Page 185
6-290 input (NC contact input specifica- tions) Communication: Normally open input Refer to Pr. 1 and Pr. 2 Refer to Pr. 3 — Refer to Pr. 7 and Pr. 8 Tab. 6-1: Parameter overview (5) FR-A700 EC 6 - 5...
Page 186
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Stall prevention operation selection becomes invalid. Function as stall prevention opera- tion under V/f control and Stall prevention ✔...
Page 187
Torque limit based on the analog input from terminal 1 and 4. Running Torque limit speed increments increments Set resolution 1r/min ✔ ✔ ✔ 0.1% increments switchover 0.1r/min 1r/min 0.01% incre- ments 0.1r/min Tab. 6-1: Parameter overview (7) FR-A700 EC 6 - 7...
Page 188
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Set the torque limit level for for- 0–400% Torque limit level ward rotation regeneration.
Page 189
S-pattern time at a ✔ ✔ ✔ acceleration/deceleration (S-pat- 0.1s 0.1s 0.1–2.5s start of deceleration tern operation). S-pattern time at a ✔ ✔ ✔ completion of deceler- 0.1s 0.1s 0.1–2.5s ation Tab. 6-1: Parameter overview (9) FR-A700 EC 6 - 9...
Page 190
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled External brake unit FR-BU and external brake resistor unit FR-BR External brake unit MT-BU5, —...
Page 191
Refer to Pr. 7 and Pr. 8 Refer to Pr. 0 — Refer to Pr. 3 Refer to Pr. 22 and Pr. 23 Refer to Pr. 41 to Pr. 43 — Refer to Pr. 9 Tab. 6-1: Parameter overview (11) FR-A700 EC 6 - 11...
Page 192
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled 0/5–14/ Select monitor to be displayed on 17–20/ the operation panel and parameter DU/PU main display ✔...
Page 193
✔ ✔ AM output filter 0.01s 0.01s 0–5s Set the output filter of terminal AM. Adjust response level of current ✔ ✔ ✔ Current output filter 0.01s 0.02s 0–5s output. Tab. 6-1: Parameter overview (13) FR-A700 EC 6 - 13...
Page 194
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Description Name tion ments Value Range page ✔: enabled —: disabled The coasting time is as follows: 00052 or less:...... 0.5s, 00083–00250: ......1s, 00310–01800: .....
Page 195
Reference value at ✔ ✔ ✔ 0.1% 9999 deceleration 150% is a Shortest decelera- limit value tion time 9999 Pr. 61 is the Optimum reference deceleration value Tab. 6-1: Parameter overview (15) FR-A700 EC 6 - 15...
Page 196
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled 0–10Hz 0 to 10Hz are starting frequency Starting frequency for ✔ ✔...
Page 197
(SF-JR 4P 1.5kW or less) Auto tuning data Mitsubishi can be read, vector motor changed, and set. (SF-V5RU/ SF-THY) Mitsubishi high efficiency motor (SF-HR) Mitsubishi constant- torque motor (SF-HRCA) Tab. 6-1: Parameter overview (17) FR-A700 EC 6 - 17...
Page 198
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Standard Star connection motor Direct input of motor constants Constant- is enabled torque motor Standard Delta connection...
Page 199
2mA, the LF signal is output and inverter continues operation at 4mA input check ✔ ✔ ✔ 9999 the frequency (average value) just selection before current reaches 2mA. 9999 4mA input is not checked. Tab. 6-1: Parameter overview (19) FR-A700 EC 6 - 19...
Page 200
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled The primary delay filter time con- stant for the analog input can be Input filter time ✔...
Page 201
10/12 When the setting is "12", it will resume the preinstantaneous power failure operation mode after an instantaneous power failure occurs. Tab. 6-1: Parameter overview (21) FR-A700 EC 6 - 21...
Page 202
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Set the applied motor capacity. * The increments and setting 0.4–55kW/ range differ according to the 0.01kW/ 0–3600kW *...
Page 203
Speed control Torque con- trol Real sensorless MC signal- vector control ON: torque MC signal- OFF: speed V/f Control (advanced magnetic flux vector control) Tab. 6-1: Parameter overview (23) FR-A700 EC 6 - 23...
Page 204
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Tuning data (The value measured by offline auto tuning is automatically set.) 0–500A/ * The increments and setting 0–3600A *...
Page 205
Second motor constant 0.001Ω/ range differ according to the ✔ ✔ 9999 — 0.01mΩ * (R2) inverter capacity. (01800 or less/02160 or more) Use the Mitsubishi motor (SF-JR, 9999 SF-HRCA) constants Tab. 6-1: Parameter overview (25) FR-A700 EC 6 - 25...
Page 206
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Tuning data of the second motor (The value measured by offline 0–50Ω...
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✔ ✔ 0.1V 0–1000V voltage) Refer to page 6-15 Refer to Pr. 7 Refer to Pr. 0 — Refer to Pr. 3 Refer to Pr. 22 Refer to Pr. 41 Tab. 6-1: Parameter overview (27) FR-A700 EC 6 - 27...
Page 208
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Specify the inverter station number. Set the inverter station PU communication ✔...
Page 209
(com- change, reset puter link) (switch power off, protocol then on) the ✔ ✔ ✔ Protocol selection inverter. The set- ting change is Modbus-RTU reflected after a protocol reset. Tab. 6-1: Parameter overview (29) FR-A700 EC 6 - 29...
Page 210
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Terminal 2 frequency Set the frequency of terminal 2 ✔ ✔ 0.01Hz 50Hz 0–400Hz...
Page 211
(Not reflected to PID forward the inverter fre- action quency) PID reverse Measured value, action set point input (PLC function) (Not reflected to PID forward the inverter fre- action quency) Tab. 6-1: Parameter overview (31) FR-A700 EC 6 - 31...
Page 212
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled If the proportional band is narrow (parameter setting is small), the manipulated variable varies greatly with a slight change of the meas- ured value.
Page 213
– Refer to Pr. 29 — Refer to Pr. 37 Tab. 6-1: Parameter overview (33) FR-A700 EC 6 - 33...
Page 214
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Japanese English German French PU display language ✔ — — 6-537 selection Spanish Italian...
Page 215
Setting dial potentiome- ter mode – Refer to Pr. 57 Refer to Pr. 150 — Parameter for manufacturer setting. Do not set. Refer to Pr. 52 – Refer to Pr. 160 Tab. 6-1: Parameter overview (35) FR-A700 EC 6 - 35...
Page 216
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled 0–20/ 0: Low-speed operation 22–28/37/ command STF terminal function ✔ ✔ 42–44/50/ —...
Page 217
— 194–196/ 98/198: Minor fault output tion selection 198/199/ 99/199: Alarm output 9999 9999: No function 0–99: Source logic 100–199: Sink logic * Available only when used with the FR-A7AP Tab. 6-1: Parameter overview (37) FR-A700 EC 6 - 37...
Page 218
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled – Refer to Pr. 4 to Pr. 6 Refer to Pr. 72 —...
Page 219
When the Pr. 259 value is "3" after life measuring powering on again, the measuring is completed. Read the deteriora- tion degree in Pr. 258. — Refer to Pr. 72 Tab. 6-1: Parameter overview (39) FR-A700 EC 6 - 39...
Page 220
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Coasting to stop When under voltage or power fail- ure occurs, the inverter output is shut off.
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* The setting range differs ✔ ✔ ✔ quency at stopon con- 9999 according to the inverter tact capacity. (01800 or less/02160 or more) As set in Pr. 72 "PWM frequency 9999 selection". Tab. 6-1: Parameter overview (41) FR-A700 EC 6 - 41...
Page 222
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Set to the rated slip frequency of Brake opening fre- the motor + about 1.0Hz. This ✔...
Page 223
0–400Hz input pulse pulse is 0 (bias). Frequency for maxi- Set the frequency when the input ✔ ✔ ✔ 0.01Hz 50 Hz 0–400Hz mum input pulse pulse is maximum (gain). Tab. 6-1: Parameter overview (43) FR-A700 EC 6 - 43...
Page 224
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled — Refer to Pr. 61 — Refer to Pr. 261 Refer to Pr. 57 —...
Page 225
Encoder Clockwise direction as viewed from A is forward rotation Encoder rotation ✔ ✔ ✔ direction Encoder Counterclockwise direction as viewed from A is forward rotation Tab. 6-1: Parameter overview (45) FR-A700 EC 6 - 45...
Page 226
Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Speed com- mand When 1 is set in Position com- Pr. 350 and the mand 16 bit option FR-A7AX is data is used...
Page 227
Overspeed detection ✔ ✔ ✔ 0.01Hz 140Hz 0–400Hz real sensorless vector control, or 6-357 level vector control, over speed (E.OS) occurs and stops the inverter out- put. Tab. 6-1: Parameter overview (47) FR-A700 EC 6 - 47...
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Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Signal loss detection is invalid Signal loss detection is valid When the cable of the encoder sig- Open cable detection nal is broken during encoder feed- ✔...
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Enters the primary delay filter in Position feed forward ✔ ✔ ✔ 0.001s 0–5s response to the feed forward com- command filter mand. Tab. 6-1: Parameter overview (49) FR-A700 EC 6 - 49...
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Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled The in-position signal (Y36) turns 0–32767 ✔ ✔ ✔ In-position width 1 pulse on when the droop pulses become pulses...
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Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Tenth position feed ✔ ✔ ✔ 0–9999 amount lower 4 digits Speed 10 REX, RM (Pr.
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✔ ✔ monitor signal output inverter * Setting increments and setting 0.1A * 0–3600A * current reference current range differ according to the inverter capacity: (01800 or less/02160 or more) Tab. 6-1: Parameter overview (53) FR-A700 EC 6 - 53...
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Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Refer to Pr. 52 — Refer to Pr. 80 Ambient temperature 40°C, Overload current rating 110% 60s, 120% 3s (Inverse time characteristics)
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(valid when Pr. 807 = 1) Reverse rotation speed ✔ ✔ ✔ 0.01Hz 9999 limit The setting is the same as that of 9999 the torque limit in the forward rotation direction. Tab. 6-1: Parameter overview (55) FR-A700 EC 6 - 55...
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Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Refer to Pr. 22 Refer to Pr. 22 and Pr. 37 —...
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1 current feedback. Second function of Pr. 827 (valid 0–0.1s when the RT signal is on) 6-144 Torque detection ✔ ✔ ✔ 0.001s 9999 filter 2 9999 No function Tab. 6-1: Parameter overview (57) FR-A700 EC 6 - 57...
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Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Model speed control Set the gain for model speed ✔ ✔ ✔...
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Same as at a rise time (C18, C19). Refer to Pr. 74 — Refer to Pr. 10 Refer to Pr. 285 Set the excitation ratio under no ✔ ✔ ✔ Excitation ratio 100% 0–100% 6-146 load. Tab. 6-1: Parameter overview (59) FR-A700 EC 6 - 59...
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Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Frequency/speed command Magnetic flux command Terminal 4 function ✔ ✔ — assignment Stall prevention/torque limit 9999...
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Pr. 886 setting. When vibration is not suppressed by decreasing the Pr. 886 setting, set a smaller value in Pr. 665. Tab. 6-1: Parameter overview (61) FR-A700 EC 6 - 61...
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Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Parameters you can use for your own purposes ✔ Free parameter 1 9999 0–9999 —...
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Set the converted % of the gain Terminal 1 gain ✔ ✔ 0.1% 100% 0–300% side voltage (current) of terminal 1 — (920) (torque/magnetic flux) input. (valid when Pr. 868 ≠ 0, 5) Tab. 6-1: Parameter overview (63) FR-A700 EC 6 - 63...
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Parameter overview Parameter Para- Para- para- Parameter meter meter meter copy clear Refer clear Func- Incre- Initial Setting Name Description tion ments Value Range page ✔: enabled —: disabled Set the torque/magnetic flux com- Terminal 4 bias com- mand value on the bias side of ter- ✔...
– To prevent machine from damage due to too large torque (torque limit) – To perform torque control or position control – Servo-lock torque control which generates a torque at zero speed (i.e. status of motor shaft = stopped) FR-A700 EC 6 - 65...
Control mode Parameter 6.2.1 What is vector control? Vector control is one of the control techniques for driving an induction motor. To help explain vector control, the fundamental equivalent circuit of an induction motor is shown below: Fig. 6-1: Equivalent circuit of an induction motor I001497E r1: Primary resistance r2: Secondary resistance...
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● Allows torque control. ● Allows servo-lock torque control which generates a torque at zero speed (i.e. status of motor shaft = stopped). (Cannot be performed under real sensorless vector control.) FR-A700 EC 6 - 67...
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Control mode Parameter Block diagram of real sensorless vector control modulation magnetic pre-excitation flux current output control control voltage conversion torque speed current control control current conversion slip calculation calculation flux magnetic speed estimation I001499E Fig. 6-3: Block diagram of real sensorless vector control Block diagram of vector control Encoder modulation...
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(φ2). The output frequency is found by adding that slip (ωs) to the feedback (ωFB) found by a feedback from the encoder. The above results are used to make PWM modulation and run the motor. FR-A700 EC 6 - 69...
Control mode Parameter 6.2.2 Change the control method (Pr. 80, Pr. 81, Pr. 451, Pr. 800) Set when selecting the advanced magnetic flux vector control, real sensorless vector control or vector control. Select a control mode from speed control mode, torque control mode and posi- tion control mode under real sensorless vector control or vector control.
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Since current is not detected and voltage is not output, monitors related to current and volt- age such as output current and output voltage, etc. and output signals do not function. For speed calculation, speed is calculated in consideration of Pr. 880 "Load inertia ratio". FR-A700 EC 6 - 71...
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Control mode Parameter Control method switching by external terminals (RT signal, X18 signal) ● The switching of the control method (V/f control, advanced magnetic flux vector control, real sensorless vector control and vector control) by the external terminal may be made in either of the following two ways: switching by the second function selection signal (RT), or V/f switching signal (X18).
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Control mode Parameter Vector Control (Pr. 800 = 5) Pr. 868 Position control (MC signal-OFF) Torque control (MC signal-ON) 0 (initial value) — Speed setting auxiliary Magnetic flux command Magnetic flux command Regenerative torque limit (Pr. 810 = 1) — —...
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Pr. 865 "Low speed detection", and not switched during motor operation. Changing the terminal assignment using Pr. 178 to Pr. 189 "Input terminal function selec- tion" may affect the other functions. Please make setting after confirming the function of each terminal. FR-A700 EC 6 - 75...
Speed control by real sensorless vector control, vector control Parameter Speed control by real sensorless vector control, vector control Speed control is exercised to match the speed command and actual motor speed. Refer to Purpose Parameter that should be Set Section To perform torque limit during speed Torque limit...
Select online auto tuning as required. (Pr. 95) (Refer to page 6-89.) Select easy gain tuning as required. (Refer to section 6.12.4.) Select manual input speed control gain adjustment as required. (Refer to page 6-92.) Fig. 6-5: Selection of the real sensorless vector control (speed control) FR-A700 EC 6 - 77...
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Speed control by real sensorless vector control, vector control Parameter NOTES Make sure to perform offline auto tuning before performing real sensorless vector control. The carrier frequencies are selectable from among 2k, 6k, 10k, 14kHz for real sensorless vector control. Torque control can not be performed in the low speed region and at a low speed with light load.
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Select manual input speed control gain adjustment as required. (Refer to page 6-92.) Fig. 6-6: Selection of vector control (speed control) NOTE The carrier frequencies are selectable from among 2k, 6k, 10k, 14kHz for vector control. FR-A700 EC 6 - 79...
Speed control by real sensorless vector control, vector control Parameter 6.3.2 Torque limit level setting for speed control (Pr. 22, Pr. 803, Pr. 810 to Pr. 817, Pr. 858, Pr. 868, Pr. 874) Sensorless Sensorless Sensorless Vector Vector Vector This function limits the output torque to the predetermined value during speed control under real sensorless vector control or vector control.
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OLT level setting 150% 0–200% to stall the motor. Set the output at which an alarm stop is made. Setting can be made only when the FR-A7AP is mounted. FR-A700 EC 6 - 81...
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Speed control by real sensorless vector control, vector control Parameter Torque limit block diagram <Vector control> Torque limit Speed control Iq current control Speed command Encoder I001501E Fig. 6-7: Torque limit block diagram Selection of torque limit input method (Pr. 810) Set Pr.
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Terminal 4 input or internal torque limit Terminal 1 input or internal torque limit (Pr. 22 etc.) whichever is smaller (Pr. 22 etc.) whichever is smaller Reverse Forward driving regeneration Rated speed I001504E Fig. 6-10: Torque limit level by analog input FR-A700 EC 6 - 83...
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Speed control by real sensorless vector control, vector control Parameter Real Sensorless Vector Control (Speed Control) Pr. 858 Pr. 868 Terminal 4 function Terminal 1 function Speed setting auxiliary (initial value) Magnetic flux command — — Speed command Torque limit (initial value) (AU signal-ON) (Pr.
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(Pr. 816 or Pr. 817) shifts to torque limit level during constant speed (Pr. 22). frequency Time Acceleration Constant speed Deceleration I001506E Fig. 6-12: Individual torque limit value during acceleration and deceleration FR-A700 EC 6 - 85...
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Speed control by real sensorless vector control, vector control Parameter Setting increments switchover of the torque limit level (Pr. 811) By setting "10, 11" in Pr. 811 "Set resolution switchover", the setting increments of Pr. 22 "Torque limit level" and Pr. 812 to Pr. 817 "Torque limit level" can be switched to 0.01%. NOTES The internal resolution of the torque limit is 0.024% (100/2 ) and the fraction less than the...
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(E.OLT) appears to shutoff the inverter output. In this case, this function is activated regardless of Pr. 874. This alarm is not provided under torque control. FR-A700 EC 6 - 87...
Speed control by real sensorless vector control, vector control Parameter 6.3.3 To perform high accuracy/fast response operation (gain adjustment of real sensorless vector control and vector control) (Pr. 818 to Pr. 821, Pr. 830, Pr. 831, Pr. 880) Sensorless Sensorless Sensorless Vector Vector...
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Actual motor speed Gain table Pr. 880 estimation section Speed/position feedback Easy gain tuning Easy gain tuning selection (Pr. 819 ) response level setting (Pr. 818 ) I001509E Fig. 6-15: Block diagram of easy gain tuning function FR-A700 EC 6 - 89...
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Speed control by real sensorless vector control, vector control Parameter Easy gain tuning execution procedure (Pr. 819 = 1 load inertia ratio automatic estimation) Easy gain tuning (load inertia ratio automatic estimation) is valid only in the speed control or position control mode under vector control.
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In addition, when the motor shaft is fixed with servo lock or position control, bearing may be damaged. To prevent these, make gain adjustment by manual input without performing easy gain tuning. FR-A700 EC 6 - 91...
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Speed control by real sensorless vector control, vector control Parameter Manual input speed control gain adjustment Make adjustment when any of such phenomena as unusual machine vibration/noise, low response level and overshoot has occurred. ● Pr. 820 "Speed control P gain 1" = 60% (initial value) is equivalent to 120rad/s (speed response of the motor alone).
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Pr. 830 "Speed control P gain 2" and Pr. 831 "Speed control integral time 2" are made valid when the RT terminal is switched on. Make adjustments in the same way as Pr. 820 and Pr. 821. FR-A700 EC 6 - 93...
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Speed control by real sensorless vector control, vector control Parameter When using a multi-pole motor (8 poles or more) Specially when using a multi-pole motor with more than 8 poles under vector control (with encoder, real sensorless), adjust speed control P gain (Pr. 820) and torque control P gain (Pr. 824) according to the motor referring to the following methods.
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I001510E Fig. 6-18: Function block diagram] NOTE Changing the terminal assignment using Pr. 178 to Pr. 189 "Input terminal function selection" may affect the other functions. Make setting after confirming the function of each terminal. FR-A700 EC 6 - 95...
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Speed control by real sensorless vector control, vector control Parameter Troubleshooting Phenomenon Cause Countermeasures (1) The motor wiring is wrong (1) Wiring check Select V/f control (Pr. 800 = 20) and check the rotation direction of the motor. Check the speed monitor output from out- put terminal CA.
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(2) The torque control gain is high. (2) Decrease the Pr. 824 value. (Refer to sec- tion 6.4.7.) (3) The motor wiring is wrong. (3) Check the wiring. Tab. 6-16: Troubleshooting (2) FR-A700 EC 6 - 97...
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Speed control by real sensorless vector control, vector control Parameter Phenomenon Cause Countermeasures (1) Insufficient torque. (1)-1 Increase the torque limit value. (Refer to torque limit of speed control in section Acceleration/deceleration 6.3.2.) time does not match the (1)-2 Perform speed feed foward control. setting.
(J : Pr. 880) Speed command Speed control iqcurrent P gain 1 control Pr. 820 Speed control Actual speed integral time 1 controller Pr. 821 Pr. 877 Speed estimator I001511E Fig. 6-19: Block diagram FR-A700 EC 6 - 99...
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Speed control by real sensorless vector control, vector control Parameter Speed feed forward control (Pr. 877 = 1) ● Calculate required torque in responce to the acceleration/deceleration command for the inertia ratio set in Pr. 880 and generate torque immediately. ●...
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Tuning results are dis- Tuning results are dis- (Pr. 828) played. played. Write disabled Write disabled Speed feed forward gain Manual input Manual input Manual input (Pr. 881) Tab. 6-17: Combination of easy gain tuning FR-A700 EC 6 - 101...
Speed control by real sensorless vector control, vector control Parameter 6.3.5 Torque biases (Pr. 840 to Pr. 848) Vector Vector Vector This function accelerates the rise of the torque at a start. Adjust the torque at a motor start using the contact signals or analog signals.
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Tab. 6-18: Setting torque bias amount with the contact input NOTE Changing the terminal assignment using Pr. 178 to Pr. 189 "Input terminal function selection" may affect the other functions. Make setting after confirming the function of each terminal. FR-A700 EC 6 - 103...
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Speed control by real sensorless vector control, vector control Parameter Setting torque bias amount with terminal 1 (Pr. 840 = 1 or 2) ● Calculate torque bias from the load input from terminal 1 as shown in the diagram below and provide torque bias.
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Press the SET key. Torque balance Operation with Read 846 compensation under a balanced load power driving is completed. NOTE When starting torque bias operation after completion of automatic setting, set "1 or 2" in Pr. 840. FR-A700 EC 6 - 105...
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Speed control by real sensorless vector control, vector control Parameter Torque bias operation ● When a value other than 9999 is set in Pr. 844 "Torque bias filter", you can slow the rise of torque. At this time, the torque rises according to the time constant of the primary delay filter. ●...
(E.OSD) and come to an alarm stop. Fig. 6-22: Speed deviation excessive detection frequency Pr. 285 Actual speed Time Pr. 853 Alarm output (across A-C) Speed deviation excessive error activated (E. OSD) I001518E FR-A700 EC 6 - 107...
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Speed control by real sensorless vector control, vector control Parameter Speed limit (Pr. 873) ● This function prevents the motor from overrunning when the setting of number of encoder pulses and the actual number differ. When the setting of number of encoder pulses is smaller than the actual number, the motor may increase its speed.
Torque control by real sensorless vector control, vector control Parameter Torque control by real sensorless vector control, vector control Refer to Purpose Parameter that must be Set Section Selection of torque command Torque command Pr. 803–Pr. 806 6.4.4 source and setting of torque command value Prevent the motor overspeed Speed limit...
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● For the 00023 to 00126, the speed deviation may become large at 20Hz or less and torque may become insufficient in the low speed region under 1Hz during contin- uous operation under real sensorless vector control. In such case, stop operation once and reaccelerate to improve the problems. FR-A700 EC 6 - 111...
Torque control by real sensorless vector control, vector control Parameter 6.4.2 Setting procedure of vector control (torque control) Vector Vector Vector Perform secure wiring. (Refer to section 3.2.) Mount the FR-A7AP. Set the motor and encoder. (Pr. 71, Pr. 359, Pr. 369) Set Pr.
1000%. Writes the torque command value to the RAM and EEPROM. Torque command value 1000% 600–1400% On the assumption that 1000% is 0%, (RAM, EEPROM) the torque command is set by an offset from 1000%. FR-A700 EC 6 - 113...
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Torque control by real sensorless vector control, vector control Parameter Control block diagram Pr. 804 Torque command source selectiont Speed estimated value < Speed limit value Torque Analog input control Parameter (Pr. 805, Pr. 806) 16 bit digital input (FR-A7AX) Drehzahlregelung Encoder Speed limit input...
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Therefore, the parameter value available when power is switched on again is the value set in Pr. 806 (EEPROM). CAUTION: When giving a torque command by parameter setting, set the speed limit value to an appropriate value to prevent overspeed. FR-A700 EC 6 - 115...
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Torque control by real sensorless vector control, vector control Parameter Torque command by CC-Link communication (Pr. 804 = 3, 5, 6) ● Writing a value to Pr. 805 or Pr. 806 using the FR-A7NC (communication option) sets the torque command value. ●...
Speed estimated value ≥ speed limit value (Pr. 808, Pr. 809) Speed estimator in real sensorless Forward/reverse rotation Real sensorless vector control vector control speed limit Encoder feedback in vector control I001531E Fig. 6-30: Control block diagram FR-A700 EC 6 - 117...
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Torque control by real sensorless vector control, vector control Parameter Use the speed command for speed control (Pr. 807 = 0, initial value) ● Set the speed limit in the same method as speed setting for speed control (speed setting by the PU (FR-DU07/FR-PU07/FR-PU04), multi-speed setting, options, etc.) ●...
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Speed limit Pr. 808 Time Output torque [%] Speed limit Pr. 809 Pr. 809 Torque Speed limit controllable range Reverse rotation Reverse rotation STF (STR) I001533E Fig. 6-32: Set the forward rotation and reverse rotation individually FR-A700 EC 6 - 119...
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Torque control by real sensorless vector control, vector control Parameter Forward rotation/reverse rotation speed limit (Pr. 807 = 2) ● When making a speed limit using analog input from terminal 1, the speed limit of the forward and reverse rotation can be switched according to the polarity of voltage. ●...
FR-PU07 or FR-PU04 Torque command Select the input method of torque command and input the torque command. Speed limit Select the input method of speed limit and input the speed limit value. Tab. 6-21: Signal input FR-A700 EC 6 - 121...
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Torque control by real sensorless vector control, vector control Parameter Operation example (when Pr. 804 = 0) Torque control is enabled if the actual speed is less than the speed limit value. When the actual speed reaches or exceeds the speed limit value, speed limit operation starts, torque control is stopped, and speed control (proportional control) starts.
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(STF or STR) is not input. The motor may run also at a low speed when the speed limit value = 0 with a start command input. Perform pre- excitation after making sure that there will be no problem in safety if the motor runs. FR-A700 EC 6 - 123...
Torque control by real sensorless vector control, vector control Parameter 6.4.7 Gain adjustment of torque control (Pr. 824, Pr. 825, Pr. 834, Pr. 835) Sensorless Sensorless Sensorless Vector Vector Vector Although stable operation is possible with the initial value, make adjustment when any of such phenomena as unusual motor and machine vibration/noise and overcurrent has occurred.
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(6) Torque variation due to the (6) Select magnetic flux observer by setting Pr. change in the motor tempera- 95 "Online auto tuning selection". (Refer to ture. section 6.12.4). Tab. 6-23: Troubleshooting during torque control (1) FR-A700 EC 6 - 125...
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Torque control by real sensorless vector control, vector control Parameter Phenomenon Cause Countermeasures When the torque com- The offset calibration of the torque Recalibrate C16 "Terminal 1 bias command mand is small, the motor command does not match. (torque/magnetic flux)" and C17 "Terminal 1 rotates in the direction bias (torque/magnetic flux)".
(or parameter setting) and the number of feedback pulses from the encoder is zero to run the motor. ● This inverter can perform conditional position feed by contact input and position control by inverter conditional pulse input. FR-A700 EC 6 - 127...
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Position control by vector control Parameter Setting procedure Perform secure wiring. (Refer to section 3.2.) Mount the FR-A7AP. Set the motor and encoder. (Pr. 71, Pr. 359, Pr. 369) Set Pr. 71 "Applied motor", Pr. 359 "Encoder rotation direction" and Pr.
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The motor stops when there are no droop pulses. ● When the number of droop pulses has fallen below the value set in Pr. 426 "In-position width", it is regarded as completion of positioning and the in-position signal (Y36) turns on. FR-A700 EC 6 - 129...
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Position control by vector control Parameter Droop pulse value Motor speed Pulse distribution Time Acceleration Deceleration Stop settling time Pulse train Rough Fine Rough LX signal Servo on STF (STR) Forward (reverse) Y36 signal In-position signal I001536E Fig. 6-39: Positioning ●...
Set the time until the inverter stops Digital position when the forward rotation (reverse control sudden stop 0–360,0 s rotation) command is turned off deceleration time with the position feed forward func- tion. FR-A700 EC 6 - 131...
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Position control by vector control Parameter Selection Method Initial Setting (OFF: —, ON: ✔) Position feed Refer to Name Parameters referred to Value Range frequency Section First position feed Acceleration/decel- 6.11.1 0–9999 amount lower 4 digits) High speed eration reference ✔...
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(reverse) command to perform position control. Therefore, set forward (reverse) command after multi-speed command (posi- tion command). Position feed is invalid if the multi-speed command is given after forward (reverse) command. FR-A700 EC 6 - 133...
Position control by vector control Parameter 6.5.3 Position control (Pr. 419, Pr. 428 to Pr. 430) by inverter pulse train input Vector Vector Vector Conditional position pulse train command can be input by pulse train input and sign signal (NP) from the JOG terminal.
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Pr. 429 = 0 Pr. 429 = 1 (initial value) Deviation counter Deviation counter image image Counter clear while ON Counter clear at the edge of turning on of the signal I001541E Fig. 6-42: Clear the droop pulse FR-A700 EC 6 - 135...
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Position control by vector control Parameter Pulse monitor selection (Pr. 430) The status of various pulses during running is displayed. Set "6" in Pr. 52 "DU/PU main display data selection" to display output frequency monitor. Display Range Display Range Pr. 430 Description (FR-DU07) (FR-PU04/FR-PU07)
:Motor speed [r/min] NOTE Set the electronic gear in the range of 1/50 to 20. Note that too small a value will decrease the speed command and too large a value will increase the speed ripples. FR-A700 EC 6 - 137...
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Position control by vector control Parameter Examples Setting example 1: The travel per pulse is Δl = 0.01 mm in a drive system where the ballscrew pitch PB = 10 (mm) and the reduction ratio 1/n = 1 and the electronic gear ratio is Δs = 10 (mm) when the number of feedback pulses Pf = 4000 (pulse/rev).
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● When acceleration/deceleration time cannot be provided for the command pulses, a sudden change in command pulse frequency may cause an overshoot or error excess alarm. At such a time, set this parameter to provide acceleration/deceleration time. Normally set 0. FR-A700 EC 6 - 139...
Position control by vector control Parameter 6.5.5 Setting of positioning adjustment parameter (Pr. 426, Pr. 427) Vector Vector Vector Initial Refer to Name Setting Range Description Parameters referred to Value Section When the number of droop pulses — 0–32767 has fallen below the setting value, In-position width 100 pulses the in-position signal (Y36) turns...
● When a tracking delay for command pulses poses a problem, increase the setting gradually and use this parameter within the range where an overshoot or vibration will not occur. ● This function has no effects on servo rigidity at a stop. ● Normally set this parameter to 0. FR-A700 EC 6 - 141...
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Position control by vector control Parameter Troubleshooting Phenomenon Cause Countermeasures (1) The phase sequence of the (1) Check the wiring. (Refer to page 3-38.) motor or encoder wiring is wrong. (2) The control mode selection (2) Check the Pr. 800 setting. Pr.
(Pr. 854). Please contact your sales representative. I001542E Fig. 6-43: Trouble shooting for when position control is not exercised normally NOTE The speed command of position control relates to speed control. (Refer to section 6.3.1). FR-A700 EC 6 - 143...
Adjustment of real sensorless vector control, vector control Parameter Adjustment of real sensorless vector control, vector control Refer to Purpose Parameter that should be Set Section Stabilize speed and feedback sig- Speed detection filter Pr. 823, Pr. 827, 6.6.1 Torque detection filter Pr.
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The RT signal is assigned to the RT terminal in the initial setting. By setting "3" in any of Pr. 178 to Pr. 189 "Input terminal function selection", you can assign the RT signal to the other terminal. FR-A700 EC 6 - 145...
Adjustment of real sensorless vector control, vector control Parameter 6.6.2 Excitation ratio Sensorless Sensorless Sensorless Vector Vector Vector Decrease the excitation ratio when you want to improve efficiency under light load. (Motor magnetic noise decreases.) Initial Refer to Name Setting Range Description Parameters referred to Value...
RT signal is on. Second torque boost 9999 9999 Without second torque boost Set the torque boost value when 0–30% the X9 signal is on. Third torque boost 9999 9999 Without third torque boost FR-A700 EC 6 - 147...
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Adjust the output torque of the motor (current) Parameter Starting torque adjustment On the assumption that Pr. 19 "Base frequency voltage" is 100%, set the output voltage at 0Hz in % to Pr. 0 (Pr. 46, Pr. 112). Fig. 6-45: Relationship between output frequency and output voltage [ % ]...
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Pr. 0 setting changes to the corresponding value in above. Changing the terminal assignment using Pr. 178 to Pr. 189 "Input terminal function selec- tion" may affect the other functions. Please make setting after confirming the function of each terminal. FR-A700 EC 6 - 149...
Adjust the output torque of the motor (current) Parameter 6.7.2 Advanced magnetic flux vector control (Pr. 71, Pr. 80, Pr. 81, Pr. 89, Pr. 450, Pr. 451, Pr. 453, Pr. 454, Pr. 569, Pr. 800) Magnetic flux Magnetic flux Magnetic flux Advanced magnetic flux vector control can be selected by setting the capacity, number and type of motor to be used in Pr.
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● The wiring length from inverter to motor should be within 30m. (Perform offline auto tuning in the state where wiring work is performed when the wiring length exceeds 30m.) ● Do not use an option sine wave filter (MT-BSL/BSC) between the inverter and motor. FR-A700 EC 6 - 151...
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Adjust the output torque of the motor (current) Parameter Selection method of advanced magnetic flux vector control Perform secure wiring. (Refer to section 3.2) Set the motor (Pr. 71). Motor Pr. 71 Remarks SF-JR (initial value) Mitsubishi standard SF-HR 4P-1.5kW or motor less Mitsubishi high effi-...
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The motor speed fluctuation at load fluctuation can be adjusted using Pr. 89. (It is useful when the speed command does not match the motor speed after the FR-A500(L) series inverter is replaced with the FR-A700 series inverter, etc.) Fig. 6-47:...
Adjust the output torque of the motor (current) Parameter 6.7.3 Slip compensation (Pr. 245 to Pr. 247) The inverter output current may be used to assume motor slip to keep the motor speed constant. Initial Refer to Name Setting Range Description Parameters referred to Value Section...
(Pr. 49). ● Fast-response current limit If the current exceeds the limit value, the output of the inverter is shut off to prevent an overcurrent. FR-A700 EC 6 - 155...
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Adjust the output torque of the motor (current) Parameter Initial Setting Refer to Name Description Parameters referred to Value Range Section Stall prevention operation selec- Torque limit level 6.3.2 tion becomes invalid. Analog input selec- 6.20.2 Stall prevention operation tion 150% Set the current value at which stall level...
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When real sensorless vector control or vector control is selected using Pr. 800 "Control method selection", Pr. 22 serves as torque limit level. For the 00126 or less, the Pr. 22 set- ting changes from 150% (initial value) to 200%. FR-A700 EC 6 - 157...
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Adjust the output torque of the motor (current) Parameter Stall prevention operation signal output and output timing adjustment (Pr. 157) When the output power exceeds the stall prevention operation level and stall prevention is acti- vated, the stall prevention operation signal (OL signal) turns on for longer than 100ms. When the output power falls to or below the stall prevention operation level, the output signal turns off.
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Output frequency [Hz] 400Hz When Pr. 23 "Stall prevention operation level compensation factor at double speed" = 9999 (ini- tial value), the stall prevention operation level is kept constant at the Pr. 22 setting up to 400Hz. FR-A700 EC 6 - 159...
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Adjust the output torque of the motor (current) Parameter Set multiple stall prevention operation levels (Pr. 48, Pr. 49, Pr. 144, Pr. 115) Setting "9999" in Pr. 49 "Second stall prevention operation frequency" and turning the RT signal on make Pr. 48 "Second stall prevention operation current" valid. Fig.
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Please make setting after confirming the function of each terminal. The RT (X9) signal acts as the second (third) function selection signal and makes the other second functions valid. FR-A700 EC 6 - 161...
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Adjust the output torque of the motor (current) Parameter Stall prevention operation level setting by terminal 1 (terminal 4) (analog variable) (Pr. 148, Pr. 149, Pr. 858, Pr. 868) ● To set the stall prevention operation level using terminal 1 (analog input), set Pr. 868 "Terminal 1 function assignment"...
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Use this function where a torque decrease will not pose a problem. Pr. 154 Setting Description Output voltage reduced 1 (Initial value) Output voltage not reduced Tab. 6-32: Settings of parameter 154 FR-A700 EC 6 - 163...
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Adjust the output torque of the motor (current) Parameter Limit the stall prevention operation and fast-response current limit operation according to the operating status (Pr. 156) Refer to the following table and select whether fast-response current limit operation will be per- formed or not and the operation to be performed at OL signal output: Stall Prevention Operation Level OL Signal Output...
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Stall prevention operation during acceleration may increase the acceleration time. Stall prevention operation performed during constant speed may cause sudden speed changes. Stall prevention operation during deceleration may increase the deceleration time, increasing the deceleration distance. FR-A700 EC 6 - 165...
Adjust the output torque of the motor (current) Parameter 6.7.5 Multiple rating (SLD = Super Light Duty, LD = Light Duty, ND = Normal Duty, HD = Heavy Duty) (Pr. 570) You can use the inverter by changing the overload current rating specifications according to load applications.
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Pr. 9 from "0 to 500A" to "0 to 3600A" and the minimum setting increments from "0.01A" to "0.1A". (Refer to the parameter list for other parameters.) FR-A700 EC 6 - 167...
Limit the output frequency Parameter Limit the output frequency Refer to Purpose Parameters that must be set Section Set upper limit and lower limit of output Maximum/minimum frequency Pr. 1, Pr. 2, 6.8.1 frequency Pr. 18 Perform operation by avoiding machine Frequency jump Pr.
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If the Pr. 2 setting is higher than the Pr. 13 "Starting frequency" value, note that the motor will run at the set frequency according to the acceleration time setting by merely switching the start signal on, without entry of the command frequency. FR-A700 EC 6 - 169...
Limit the output frequency Parameter 6.8.2 Avoid mechanical resonance points (Frequency jump) (Pr. 31 to Pr. 36) When it is desired to avoid resonance attributable to the natural frequency of a mechanical sys- tem, these parameters allow resonant frequencies to be jumped. Refer to Name Initial Value...
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31 "Frequency jump 1A". Pr.32 (1B) Pr.31 (1A) Pr.31 (1A) Pr.32 (1B) Set frequency Set frequency I00019aC Fig. 6-58: Selection of the jump point NOTE During acceleration/deceleration, the running frequency within the set area is valid. FR-A700 EC 6 - 171...
Set V/f pattern Parameter Set V/f pattern Refer to Purpose Parameters that must be set Section Set motor ratings Base frequency, Base frequency voltage Pr. 3, Pr. 19, 6.9.1 Pr. 47, Pr. 113 Select a V/f pattern according to Load pattern selection Pr.
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In the initial setting, the RT signal is assigned to the RT terminal. By setting "3" to any of Pr. 178 to Pr. 189 "Input terminal function selection", you can assign the RT signal to the other terminal. FR-A700 EC 6 - 173...
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Set V/f pattern Parameter Base frequency voltage setting (Pr. 19) Use Pr. 19 "Base frequency voltage" to set the base voltage (e.g. rated motor voltage). If the set- ting is less than the power supply voltage, the maximum output voltage of the inverter is as set in Pr.
Set this value when driving the load whose load torque varies in proportion to the square of the speed, e.g. fan or pump. Fig. 6-61: [ % ] Variable-torque load Pr. 3 Base frequency Output frequency I001323C FR-A700 EC 6 - 175...
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Set V/f pattern Parameter Vertical lift load applications (setting values 2 or 3) Set "2" when a vertical lift load is fixed as power driving load at forward rotation and regenerative load at reverse rotation. Pr. 0 "Torque boost" is valid during forward rotation and torque boost is automatically changed to "0%"...
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Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Make setting after confirming the function of each terminal. When the RT signal is on, the other second functions are also valid. FR-A700 EC 6 - 177...
Set V/f pattern Parameter 6.9.3 Elevator mode (automatic acceleration/deceleration) (Pr. 61, Pr. 64, Pr. 292) Operation matching a load characteristic of elevator with counterweight can be performed. Initial Refer to Name Setting Range Description Parameters referred to Section Value 01800 Multiple rating 6.7.5 0–500A...
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Pr. 570 = 3 Stall prevention Pr. 292 = 5 110% 120% 150% 200% operation level Pr. 292 = 6 115% 140% 180% 230% Tab. 6-38: Influence of the overload capacity on the current limit FR-A700 EC 6 - 179...
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Set V/f pattern Parameter Adjustment of elevator mode (Pr. 61, Pr. 64) By setting the adjustment parameters Pr. 61 and Pr. 64, the application range can be made wider. Pr. No. Name Setting Range Desciption 01800 For example, when the motor and inverter are differ- 0–50A or less ent in capacity, set the rated motor current value.
For a machine of large static friction coefficient and small dynamic static friction coefficient, for example, set a V/f pattern that will increase the voltage only in a low-speed range since such a machine requires large torque at a start. FR-A700 EC 6 - 181...
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Set V/f pattern Parameter CAUTION: Set this parameter correctly according to the motor used. Incorrect setting may cause the motor to overheat and burn. Setting procedure: Set the rated motor current in Pr. 19 "Base frequency voltage". (No function at the setting of "9999"...
Multi-speed setting 9999 0–400Hz/9999 (speed 15) NOTE The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 "Parameter write selection". FR-A700 EC 6 - 183...
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Frequency setting by external terminals Parameter Operation is performed at the frequency set in Pr. 4 when the RH signal turns on, Pr. 5 when the RM signal turns on, and Pr. 6 when the RL signal turns on. Frequency from speed 4 to speed 15 can be set according to the combination of the RH, RM, RL and REX signals.
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The RH, RM, RL, REX signals can be assigned to the input terminal using any of Pr. 178 to Pr. 189 "Input terminal function selection". When terminal assignment is changed, the other functions may be affected. Please make setting after confirming the function of each termi- nal. FR-A700 EC 6 - 185...
Frequency setting by external terminals Parameter 6.10.2 Jog operation (Pr. 15, Pr. 16) You can set the frequency and acceleration/deceleration time for jog operation. Jog operation can be performed from either the outside or PU. Can be used for conveyor positioning, test operation, etc. Initial Refer to Name...
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It rotates at 5Hz (initial value of Pr. 15). Reverse Rotates while ON. rotation Forward rotation Turn the start switch STF or STR off. Reverse Stop rotation I001129E Fig. 6-70: Jog operation in the external operation mode FR-A700 EC 6 - 187...
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Frequency setting by external terminals Parameter JOG operation from PU Set the PU (FR-DU07/FR-PU04/FR-PU07) to the jog operation mode. Operation is performed only while the start button is pressed. Fig. 6-71: Inverter Connection example for jog operation Power performed from PU Motor supply I001130E...
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When Pr. 79 "Operation mode selection" = 4, push the FWD/REV key of the PU (FR-DU07/ FR-PU04/FR-PU07) to make a start or push the STOP/RESET key to make a stop. This function is invalid when Pr. 79 = 3 or 6. Jog operation is invalid under position control. FR-A700 EC 6 - 189...
Frequency setting by external terminals Parameter 6.10.3 Input compensation of multi-speed and remote setting (Pr. 28) By inputting the frequency setting compensation signal (terminal 1, 2), the speed (frequency) can be compensated for relative to the multi-speed setting or the speed setting by remote setting function.
Pr. 59 = 2, 3 Time Acceleration RH Deceleration RM Clear RL Forward rotation STF Power supply I001133E Fig. 6-74: Example of the remote setting function * External operation frequency (other than multi-speed) or PU running frequency. FR-A700 EC 6 - 191...
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Frequency setting by external terminals Parameter Remote setting function When the remote function is used, the output frequency of the inverter can be compensated for as follows: External operation:Frequency set by RH/RM operation + external running frequency or PU running frequency (other than multi-speed). (When making analog input compensation, set "1"...
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The RH, RM, RL signals can be assigned to the input terminal using any Pr. 178 to Pr. 189 "Input terminal function selection". When terminal assignment is changed, the other func- tions may be affected. Please make setting after confirming the function of each terminal. Also available for the network operation mode. FR-A700 EC 6 - 193...
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Frequency setting by external terminals Parameter During jog operation or PID control operation, the remote setting function is invalid. Set frequency = 0 Hz ● Even when the remotely-set frequency is cleared by turning on the RL (clear) signal after turn off (on) of both the RH and RM signals, the inverter operates at the remotely-set frequency stored in the last operation if power is reapplied before one minute has elapsed since turn off (on) of both the RH and RM signals.
RT signal is on. 9999 time 9999 Acceleration time = deceleration time Depends on the Pr. 21 "Acceleration/deceleration time increments" setting. The initial value for the setting range is "0 to 3600s" and the setting increments is "0.1s". FR-A700 EC 6 - 195...
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Acceleration and deceleration Parameter Acceleration time setting (Pr. 7, Pr. 20) Use Pr. 7, 44 and 110 to set the acceleration time required to reach Pr. 20 "Acceleration/ deceleration reference frequency" from 0Hz. The setting value of Pr. 13 "Starting frequency" must be considered.
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● The RT (X9) signal acts as the second (third) function selection signal and makes the other second (third) function valid. ● The RT and X9 signal can be assigned to the input terminal using any of Pr. 178 to Pr. 189 (input terminal function selection). FR-A700 EC 6 - 197...
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Acceleration and deceleration Parameter S-shaped acceleration/deceleration pattern If a S-shaped acceleration/deceleration pattern A is selected in pr. 29, the set time is the period required to reach the base frequency set in Pr. 3 "Base frequency". Acceleration/deceleration time formula when the set frequency is the base frequency or higher. ×...
Note that when Pr. 13 is set to any value lower than Pr. 2 "Minimum frequency", simply turning on the start signal will run the motor at the preset frequency even if the command frequency is not input. FR-A700 EC 6 - 199...
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Acceleration and deceleration Parameter Start-time hold function (Pr. 571) This function holds the time set in Pr. 571 and the output frequency set in Pr. 13 "Starting frequency". This function performs initial excitation to smooth the motor drive at a start. Forward rotation Output frequency [Hz]...
D (Pr. 29 = 5) is set. Set the time taken for S-pattern accelera- S-pattern time at a start 0.1 s 0.1–2.5 s tion/deceleration (S-pattern operation). of deceleration S-pattern time at a com- 0.1 s 0.1–2.5 s pletion of deceleration FR-A700 EC 6 - 201...
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Acceleration and deceleration Parameter Linear acceleration/deceleration (Pr. 29 = 0, initial value) When the frequency is changed for acceleration, deceleration, etc. in inverter operation, the out- put frequency is changed linearly (linear acceleration/deceleration) to reach the set frequency without straining the motor and inverter. Linear acceleration/deceleration has a uniform fre- quency/time slope (refer to Fig.
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Set the acceleration/deceleration stopping frequency and time in Pr. 140 to Pr. 143. Pr. 142 Pr. 140 Pr. 13 Time P r. 1 4 1 Pr. 143 I001527E Fig. 6-83: Anti-backlash measure function NOTE Setting the backlash measures increases the acceleration/deceleration time by the stopping time. FR-A700 EC 6 - 203...
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Acceleration and deceleration Parameter S-pattern acceleration/deceleration C (Pr. 29 = 4, Pr. 380 to Pr. 383) With the S-pattern acceleration/deceleration C switch signal (X20), an acceleration/decelera- tion curve S-pattern 1 or S-pattern 2 can be selected. For the terminal used for X20 signal input, set "20"...
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Pr. 519.Set each S-pattern operation time for acceleration start (Pr.516), acceleration com- pletion (Pr. 517), deceleration start (Pr. 518) and deceleration completion (Pr. 519). Pr. 516 Pr. 517 Pr. 518 Pr. 519 Time Start signal I001553E Abb. 6-86: Characteristic for parameter 29 = 5 FR-A700 EC 6 - 205...
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Acceleration and deceleration Parameter When S-pattern acceleration/deceleration D is set, acceleration/deceleration time will become longer as follows: Actual acceleration time T2 = set acceleration time T1 + (S-pattern time at a start of accelera- tion+S-pattern time at a completion of acceleration) /2 Actual deceleration time T2 = set deceleration time T1 + (S-pattern time at a start of decelera- tion+S-pattern time at a completion of deceleration) /2 Set acceleration/deceleration time T1 indicates Pr.
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Set linear acceleration/deceleration (Pr. 29 = "0 (initial value)") when torque control is exer- cised under real sensorless vector control or vector control. When acceleration/deceleration patterns other than the linear acceleration/deceleration are selected, the protective function of the inverter may function. FR-A700 EC 6 - 207...
Acceleration and deceleration Parameter 6.11.4 Shortest acceleration/deceleration (automatic acceleration/deceleration) (Pr. 61 to Pr. 63, Pr. 292, Pr. 293) The inverter operates in the same conditions as when appropriate values are set in each para- meter even if acceleration/deceleration time and V/f pattern are not set. This function is useful when you just want to operate, etc.
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Since acceleration/deceleration is made with the stall prevention operation being activated, the acceleration/deceleration speed always varies according to the load conditions. Note that when proper values are set in Pr. 7 and Pr. 8, acceleration/deceleration time may be shorter than selecting shortest acceleration/deceleration mode. FR-A700 EC 6 - 209...
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Acceleration and deceleration Parameter Optimum acceleration/deceleration mode (Pr. 292 = 3) ● The optimum operation within the rating range where the inverter can be continuously used regardless of the inverter capability is performed.Automatically set torque boost and acce- leration/deceleration time so that the average current during acceleration/deceleration is the rated current by the self-learning of the inverter.
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Since the Pr. 61 to Pr. 63 settings automatically return to the initial value (9999) if the Pr. 292 setting is changed, set Pr. 292 first when you need to set Pr. 61 to Pr. 63. FR-A700 EC 6 - 211...
Selection and protection of a motor Parameter 6.12 Selection and protection of a motor Refer to Purpose Parameters that must be set Section Motor protection from overheat Electronic thermal O/L relay Pr. 9, Pr. 51 6.12.1 Use the constant torque motor Applied motor Pr.
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The % value denotes the percentage to the inverter rated output current. It is not the percentage to the motor rated current. When you set the electronic thermal relay function dedicated to the Mitsubishi constant- torque motor, this characteristic curve applies to operation at 6Hz or higher. FR-A700 EC 6 - 213...
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Selection and protection of a motor Parameter NOTES Protective function by electronic thermal relay function is reset by inverter power reset and reset signal input. Avoid unnecessary reset and power-off. When multiple motors are operated by a single inverter, protection cannot be provided by the electronic thermal relay function.
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The RT signal is assigned to the RT terminal in the initial setting. By setting "3" in any of Pr. 178 to Pr. 189 "Input terminal function selection", you can assign the RT signal to the other terminal. FR-A700 EC 6 - 215...
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Selection and protection of a motor Parameter Electronic thermal relay function alarm output and alarm signal (THP signal) The alarm signal (THP) is output when the electronic thermal relay function cumulative value reaches 85% of the level set in Pr. 9 or Pr. 51. If it reaches 100% of the Pr. 9 "Electronic thermal O/L relay"...
Page 397
When you want to input a current, assign the AU signal to the other signal. When terminal assignment is changed, the other functions may be affected. Please make setting after confirming the function of the AU terminal. FR-A700 EC 6 - 217...
Selection and protection of a motor Parameter 6.12.2 Applied motor (Pr. 71, Pr. 450) Setting of the used motor selects the thermal characteristic appropriate for the motor. Setting is required to use a constant-torque motor. Thermal characteristic of the electronic thermal relay function suitable for the motor is set.
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9999 — (initial Without second applied motor value) Tab. 6-46: Setting of parameter Pr. 71 and Pr. 450 Motor constants of Mitsubishi high efficiency motor SF-HR. Motor constants of Mitsubishi constant-torque motor SF-HRCA. FR-A700 EC 6 - 219...
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Selection and protection of a motor Parameter NOTE For the 00170 and 00250, the Pr. 0 Torque boost and Pr. 12 DC injection brake operation voltage settings are automatically changed according to the Pr. 71 setting as follows. Standard Motor Setting Constant Torque Motor Setting Pr.
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Changing the terminal assignment using Pr. 178 to Pr. 189 "Input terminal function selection" may affect other functions. Make setting after confirming the function of each terminal. CAUTION: Set this parameter correctly according to the motor used. Incorrect setting may cause the motor to overheat and burn. FR-A700 EC 6 - 221...
Selection and protection of a motor Parameter 6.12.3 Offline auto tuning (Pr. 71, Pr. 80 to Pr. 84, Pr. 90 to Pr. 94, Pr. 96, Pr. 450, Pr. 453 to Pr. 463, Pr. 684, Pr. 859, Pr. 860) Magnetic flux Magnetic flux Magnetic flux Sensorless...
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Tuning data of the second motor less (The value measured by offline 02160 auto tuning is automatically set.) Second motor exci- 0 to 3600A 9999 tation current more Use the Mitsubishi motor (SF-JR, 9999 SFHR, SF-JRCA, SF-HRCA) con- stants FR-A700 EC 6 - 223...
Page 404
Selection and protection of a motor Parameter Initial Refer to Name Setting Range Description Parameters referred to Value Section Rated second motor Set the rated voltage (V) of the See top of section 400V 0 to 1000V voltage second motor. Rated second motor Set the rated motor frequency 50Hz...
Page 405
(Pr. 96 = "101"). The rotation mode has higher tuning accuracy than the non-rotation mode. ● Reading/writing/copy of motor constants tuned by offline auto tuning are enabled. ● The offline auto tuning status can be monitored with the PU (FR-DU07/FR-PU07/FR-PU04). FR-A700 EC 6 - 225...
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Selection and protection of a motor Parameter Before performing offline auto tuning Check the following before performing offline auto tuning. ● Make sure advanced magnetic flux vector control (Pr. 80, Pr. 81), real sensorless vector control or vector control (Pr. 800) is selected (refer to section 5.1.7) ●...
Page 407
Mitsubishi constant-torque motor SF-HRCA Others (SF-JRC, etc.) Vector control dediated motor SF-V5RU, SF-THY Other manufacturer's standard motor — Other manufacturer's constant-torque motor — Tab. 6-49: Motor selection Refer to section 6.12.2 for other settings of Pr. 71. FR-A700 EC 6 - 227...
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Selection and protection of a motor Parameter Execution of tuning CAUTION: Before performing tuning, check the monitor display of the operation panel or parameter unit (FR-PU04/FR-PU07) if the inverter is in the status for tuning (refer to Tab. 6-50). When the start command is turned on under V/f control, the motor starts. When performing tuning or PU operation, press the RUN key of the operation panel or the FWD or REV key of the parameter unit (FR-PU04/FR-PU07).
Page 409
(Without this operation, next operation cannot be started.) NOTE Do not change the Pr. 96 setting after completion of tuning (3 or 103). If the Pr. 96 setting is changed, tuning data is made invalid and tuning must be performed again. FR-A700 EC 6 - 229...
Page 410
Selection and protection of a motor Parameter If offline auto tuning ended in error (see the table below), motor constants are not set. Perform an inverter reset and restart tuning. Pr. 96 Setting Error Cause Remedy Forced end Set "1" or "101" in Pr. 96 and perform tuning again.
Page 411
When Pr. 90 is displayed as "2516", set 2642, i.e. 2516 × 1.05 = 2641.8, in Pr. 90. (The value displayed has been converted into a value for internal use. Hence, simple addi- tion of a given value to the displayed value has no significance.) FR-A700 EC 6 - 231...
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Selection and protection of a motor Parameter Method to set the motor constants without using the offline auto tuning data The Pr. 90 and Pr. 94 motor constants may either be entered in [ Ω, mΩ ] or in [mH]. Before start- ing operation, confirm which motor constant unit is used.
Page 414
Selection and protection of a motor Parameter Setting Inre- Name Setting Range Initial Value ments 01800 or less 0–500A, 9999 0.01A Motor excitation cur- 9999 rent (no load current) 02160 or more 0–3600A, 9999 0.1A 01800 or less 0–50Ω, 9999 0.001Ω...
Page 415
178 to Pr. 189 (input terminal function selection), you can assign the RT signal to the other terminal. Changing the terminal assignment using Pr. 178 to Pr. 189 "Input terminal function selection" may affect other functions. Make setting after confirming the function of each terminal. FR-A700 EC 6 - 235...
Selection and protection of a motor Parameter 6.12.4 Online auto tuning (Pr. 95, Pr. 574) Magnetic flux Magnetic flux Magnetic flux Sensorless Sensorless Sensorless Vector Vector Vector When online auto tuning is selected under advanced magnetic flux vector control, real sensor- less vector control or vector control, excellent torque accuracy is provided by temperature com- pensation even if the secondary resistance value of the motor varies with the rise of the motor temperature.
Page 417
(Note that it is necessary to perform offline auto tuning (non-rotation mode) for the wiring length resistance to be reflected on the control when the wiring length is long (30m or longer as reference). FR-A700 EC 6 - 237...
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Selection and protection of a motor Parameter NOTES Online auto tuning does not operate if the MRS signal is input, if the preset speed is less than the Pr. 13 "Starting frequency" (V/f control or advanced magnetic flux vector control), or if the starting conditions of the inverter are not satisfied, e.g.
Page 419
Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) or Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions. Make setting after confirming the function of each terminal. FR-A700 EC 6 - 239...
Page 420
Selection and protection of a motor Parameter Tune second applied motor ● When you want to switch two motors with one inverter, set the second motor in Pr. 450 Second applied motor (refer to section 6.12.2). Initial setting is without second applied motor. Perform tuning using Pr.
DC injection brake and zero speed control, servo lock (LX signal, X13 signal, Pr. 10 to Pr. 12, Pr. 802, Pr. 850) The FR-A700 EC frequency inverter has an adjustable DC brake function. The DC injection brake can be operated at a motor stop to adjust the stop timing and braking torque.
Page 422
Motor brake and stop operation Parameter Setting Refer to Name Initial Value Description Parameters referred to Range Section Set the operation frequency of the DC injection Starting 6.11.2 DC injection 0 to 120 Hz brake. frequency brake operation Applied motor frequency 6.12.2 9999...
Page 423
When the X13 signal is turned on with Pr. 11 = "8888", zero speed control is activated regardless of setting of Pr. 850 "Brake operation selection. Under vector control, zero speed control or servo lock is activated depending on the Pr. 802 setting. FR-A700 EC 6 - 243...
Page 424
Motor brake and stop operation Parameter Operation voltage (torque) setting (Pr. 12) Use Pr. 12 to set the percentage to the power supply voltage. (This parameter is not used during zero speed control or servo lock.) When Pr. 12 = 0%, the DC injection brake is not operated. (At a stop, the motor coasts.) When using the constant-torque motor (SF-JRCA) and energy saving motor (SF-HR, SF-HRCA), change the Pr.12 setting as follows: Constant-torque motor (SF-JRCA):...
Page 425
Zero speed Zero speed Zero speed Torque — Servo lock Servo lock Servo lock Position — — — Servo lock — Tab. 6-65: Relationship between the DC injection brake operation and pre-excitation operation under each control. FR-A700 EC 6 - 245...
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Motor brake and stop operation Parameter Pre-excitation signal (LX signal) When the LX signal is turned on under real sensorless vector control or vector control, pre-exci- tation (zero speed control or servo lock) is exercised during a stop. For the terminal used for LX signal input, set "23" in any of Pr. 178 to Pr. 186 to assign the func- tion.
High power factor converter (FR-HC, MT-HC), power P/+, N/− regeneration com- mon converter (FR-CV) 01800 0–30 % less Special regenera- Set the %ED of the built-in brake transi- tive brake duty stor operation. 02160 0–10 % more FR-A700 EC 6 - 247...
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Motor brake and stop operation Parameter 01800 or less Terminal for power Regeneration Unit Pr. 30 Pr. 70 Remarks supply to the inverter The regenerative brake duty is as R/L1, S/L2, T/L3 (initial follows: value) Built-in brake (00250 or FR-A 740–00023–00250. . .2 % less), —...
Page 429
Y2 signal (instantaneous power failure detection signal) of the FR-HC, MT-HC. For the terminal used for X10 or X11 signal input, assign its function by setting "10" (X10) or "11" (X11) in any of Pr.178 to Pr. 189. FR-A700 EC 6 - 249...
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Motor brake and stop operation Parameter DC feeding mode 1 (Pr. 30 = 10 or 11) ● Setting "10, 11" in Pr. 30 enables DC power supply operation. ● Leave the AC power supply connection terminal R/L1, S/L2, and T/L3 open and connect the DC power supply to terminal P/+ and N/-.
Page 431
When the Y85 signal turns on because of undervoltage, the Y85 signal does not turn off even if under- voltage is eliminated. ON/OFF status is retained at an inverter reset. Tab. 6-68: I/O signals for DC feeding mode 2 FR-A700 EC 6 - 251...
Page 432
Motor brake and stop operation Parameter The following shows the connection diagram when switching to a DC power using inverter power failure detection.. Inverter Inrush current limit circuit DC power Forward rotation start Reverse rotation start DC feeding permission signal DC feeding cancel signal DC feeding signal Frequency command...
Page 433
Control power supply Power restoration AC power supply Y85 (MC) Remains on while running STF (STR) Output frequency [Hz] Time Back up operation I001565E Abb. 6-103: Operation example 3 at power failure (when continuous operation is performed) FR-A700 EC 6 - 253...
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Motor brake and stop operation Parameter Power supply specification at DC feeding Rated input DC voltage 537V DC to 679V DC 400V class Permissible fluctuation 457V DC to 740V DC ACHTUNG: As voltage between P/+, N/- becomes 830V or more temporarily at regeneration, make selection of DC power supply carefully.
Output is shut off when set time elapses after start Output signal turned off frequency [Hz] Pr. 250 Motor coasts to stop Time Start signal RUN signal I001144E Fig. 6-106: Stop operation when parameter 250 ≠ 8888 or 9999 FR-A700 EC 6 - 255...
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Motor brake and stop operation Parameter NOTES The RUN signal turns off when the output stops. Stop selection is invalid when the following functions are activated. Position control (Pr. 419 = 0) Power failure stop function (Pr. 261) PU stop (Pr. 75) Deceleration stop because of fault definition (Pr.
As set in Pr. 72 "PWM frequency 9999 selection". When Pr. 570 "Multiple rating setting ≠ “2”, performing all parameter clear and inverter reset changes the initial value and setting range. (Refer to section 6.7.5). FR-A700 EC 6 - 257...
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Motor brake and stop operation Parameter Mechanical brake MCCB Power supply Motor Forward rotation command High-speed operation command Middle-speed operation command Stop-on contact selection 0 Stop-on contact selection 1 I001568E Fig. 6-108: Connection example The input signal terminal used differs according to the Pr. 180 to Pr. 189 settings. Normal mode Stop-on-contact control mode Pr.
Page 439
(Pr. 72 when Pr. 276 = "9999") Fast-response current — Valid — Invalid limit Tab. 6-69: Function switching of stop-on-contact control selection When RL and RT are on, Pr. 49 "Second stall prevention operation frequency" is invalid. FR-A700 EC 6 - 259...
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Motor brake and stop operation Parameter Set frequency when stop-on-contact control (Pr. 270 = 1 or 3) is selected The following table lists the frequencies set when the input terminals (RH, RM, RL, RT, JOG) are selected together. Bold frame indicates stop-on-contact control is valid. Stop-on-contact control is invalid when remote setting function is selected (Pr.
When exercising vector control with the FR-A7AP, this parameter changes to excessive speed deviation detection frequency (For details, refer to section 6.3.6) When Pr. 570 Multiple rating setting ≠ “2”, performing all parameter clear and inverter reset changes the setting range. (Refer to section 6.7.5) FR-A700 EC 6 - 261...
Page 442
Motor brake and stop operation Parameter Mechanical brake Power Motor supply 24V DC Start signal Multi-speed signal BOF signal BRI signal BOF signal: Brake opening request signal BRI signal: Brake opening completion signal I001570E Fig. 6-110: Connection example with mechanical brake (Pr. 184 = 15, Pr. 190 = 20) The input signal terminal used differs according to the Pr.
Page 443
Pr. 280 Pr. 282 Pr. 281 Pr. 278 Pr. 13 Time Pr. 283 Pr. 279 Output currrent BOF signal BRI signal Electromagnetic brake Opened Closed Closed operation I001571E Fig. 6-111: Operation when parameter 292 = 7 FR-A700 EC 6 - 263...
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Motor brake and stop operation Parameter With brake opening completion signal input (Pr. 292 = 8) ● When the start signal is input to the inverter, the inverter starts running. When the internal speed command reaches the value set in Pr. 278 and the output current is not less than the value set in Pr.
Page 445
Overspeed detection (Pr. 285) is valid under encoder feedback control (used with the FR- A7AP option) even if a value other than "7 or 8" is set in Pr. 292. A too large setting of Pr. 278 "Brake opening frequency" activates stall prevention operation and may cause E.MB4. FR-A700 EC 6 - 265...
Motor brake and stop operation Parameter 6.13.6 Orientation control (Pr. 350 bis Pr. 366, Pr. 369, Pr. 393, Pr. 396 to Pr. 399) Magnetic flux Magnetic flux Magnetic flux Vector Vector Vector This function is used with a position detector (encoder) installed to the spindle of a machine tool, etc.
Page 447
0 to 5.0s the present position is checked again Recheck time 9999 after the set time elapses and the ori- entation complete signal (ORA) or ori- entation fault signal (ORM) is output. 9999 Not checked. FR-A700 EC 6 - 267...
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Motor brake and stop operation Parameter Initial Setting Refer to Name Description Parameters referred to Value Range Section Number of encoder Set the number of pulses of the — 1024 0 to 4096 pulses encoder (before multiplied by four). Orientation is executed from the cur- rent rotation direction.
Page 449
SWhen a stop position command is input from outside, a plug-in option FR-A7AX is necessary. Refer to page 6-271 for external stop position command.) NOTE In the above diagram a connection example for sink logic is shown. FR-A700 EC 6 - 269...
Page 450
Motor brake and stop operation Parameter Setting If the orientation command signal (X22) is turned on during operation after the various para- meters have been set, the speed will decelerate to the "orientation switchover speed". After the "orientation stop distance" is calculated, the speed will further decelerate, and the "orientation state"...
Page 451
2 to 127 Example When the number of stop positions is 90 (divided at intervals of 4°), 90 - 1 = 89. Hence, set "89". Tab. 6-74: Settings for parameter 360 FR-A700 EC 6 - 271...
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Motor brake and stop operation Parameter Example 1: Pr. 369 = 1024 Example 2: 8 stop positions Example 3: 120 stop positions Origin (0) Origin (0) Origin (0) 7 oder mehr At intervals of 3° NOTES Values in parentheses indicate binary data entered from the terminals. Even if the position pulse monitor (Pr.
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If the position detection value from the encoder enters ±Δθ during orientation stop, the orien- tation complete signal (ORA) will be output. 360° Δ θ × ---------------------------- - Pr. 357 × Pr. 369 Fig. 6-115: In-position zone I001578E FR-A700 EC 6 - 273...
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Motor brake and stop operation Parameter Orientation operation (under V/f control, advanced magnetic flux vector control) ● Orientation during running When the orientation command (X22) is input, the motor speed decreases to the orientation speed set in Pr. 351 "Orientation speed". (Pr. 351 initial value: 2Hz) After the speed reaches the orientation speed, the speed decreases to the creep speed set in Pr.
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Main spindle speed (encoder) Creep speed (orientation deceleration ratio) Pr. 351 Pr. 352 Time Start signal (STF/STR) Orientation command (X22) DC injection brake Orientation completion signal (ORA) I001581E Fig. 6-117: Action time chart for orientation from stop FR-A700 EC 6 - 275...
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Motor brake and stop operation Parameter ● Continuous multi-point orientation Orientation command and orientation with STF/STR on (Orientation in servo in status). Orientation speed (orientation switchover speed) Main spindle speed Creep speed (orientation deceleration ratio) (encoder) Pr. 351 Pr. 352 Time Start signal Orientation command...
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DC injection brake does not operate if the X13 signal is not turned on. Note that the DC injection brake is applied under orientation control regardless of the X13 signal status. ● When orientation control is exercised, PID control is invalid. FR-A700 EC 6 - 277...
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Motor brake and stop operation Parameter ● Servo torque selection (Pr. 358) Valid only under V/f control and advanced magnetic flux vector control. Pr. 358 Setting Function Remarks 10 11 12 13 Servo torque function selection : With servo torque function ×...
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Pr. 352 "Creep speed" gradually according to the slope set in Pr. 362 "Orientation position loop gain". Although the operation becomes faster when the value is increased, a machine may hunt, etc. FR-A700 EC 6 - 279...
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Motor brake and stop operation Parameter Orientation operation explanation (during vector control) ● Setting the rotation direction (Pr. 393 "Orientation selection") Pr. 393 Rotation Direction Remarks Pre-orientation Orientation is executed from the current rotation direction. (Initial value) Orientation is executed from the forward rotation direction. Forward rotation (If the motor is running in reverse, orientation is executed from the for- ward rotation direction after deceleration.)
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If the motor is running in forward, it will decelerate, the rotation direction will be changed to reverse run, and then orientation stop will be executed. Fig. 6-121: Orientation from the reverse rotation direction Speed (forward rotation) Time Speed Time (reverse rotation) I001587E FR-A700 EC 6 - 281...
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Motor brake and stop operation Parameter Please observe the following points when an encoder is used for orientation under vector con- trol. ● The encoder should be coupled with the motor shaft oriented with a speed ratio of 1 to 1 without any mechanical looseness.
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When the servo rigidity is lowered, the holding force will drop, and the setting time will increase. Rocking: Movement in which return occurs if the stopping position is exceeded. Limit cycle: This is a phenomenon that generates ± continuous vibration centering on the target position. FR-A700 EC 6 - 283...
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Motor brake and stop operation Parameter ● Orientation deceleration ratio (Pr. 399, Initial value: 20) Make adjustments as shown below according to the orientation status. (Refer to the Pr. 396 and Pr. 397 details also.) Generally adjust Pr. 362 in the range from 5 to 20, and Pr. 399 from 5 to 50. Adjustment Procedure Phenomenon Pr.
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(ORA) Encoder Z phase pulse I001590E Fig. 6-122: Orientation speed NOTE When "19" is set in Pr. 52 "DU/PU main display data selection", position pulse monitor is dis- played instead of PU output voltage monitor. FR-A700 EC 6 - 285...
Function assignment of external terminals Parameter 6.14 Function assignment of external terminals Refer to Purpose Parameters that must be set Section Assign function to input terminal Input terminal function selection Pr. 178–Pr. 189 6.14.1 Set MRS signal (output shutoff) to nor- MRS input selection Pr.
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Commercial power supply-inverter switchover function 6-502 Pr. 135–Pr. 139, Pr. 159 STOP Start self-holding selection — 6-294 Control mode changing Pr. 800 6-70 Torque limit selection Pr. 815 6-80 Tab. 6-80: Input terminal function assignment (1) FR-A700 EC 6 - 287...
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Function assignment of external terminals Parameter Refer to Setting Terminal Function Related Parameters Page Start-time tuning start external input Pr. 95 6-236 Traverse function selection Pr. 592–Pr. 597 6-520 Torque bias selection 1 Pr. 840–Pr. 845 6-102 Torque bias selection 2 Pr.
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≤ 20ms ≤ 2ms Valid ✔ ≤ 20ms — — Valid ✔ Other than 2 — — — — ✔ ✔ ≤ 20ms — Valid Tab. 6-82: Response time of the signals MRS and X10 FR-A700 EC 6 - 289...
Function assignment of external terminals Parameter 6.14.2 Inverter output shutoff signal (MRS signal, Pr. 17) The inverter output can be shut off from the MRS signal. The logic of the MRS signal can also be selected. Initial Setting Refer to Name Description Parameters referred to...
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The MRS signal can shut off the output, independently of the PU, external or network opera- tion mode. Changing the terminal assignment using Pr. 178 to Pr. 189 "Input terminal function selection" may affect the other functions. Please make setting after confirming the function of each terminal. FR-A700 EC 6 - 291...
Function assignment of external terminals Parameter 6.14.3 Condition selection of function validity by the second function selection signal (RT) and third function selection signal (X9) (RT signal, X9 signal, Pr. 155) You can select the second (third) function using the RT(X9) signal. You can also set the condition (reflection conditon) where the second function and third function become valid.
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Changing the terminal assignment using Pr. 178 to Pr. 189 "Input terminal function selec- tion" may affect the other functions. Please make setting after confirming the function of each terminal. FR-A700 EC 6 - 293...
Function assignment of external terminals Parameter 6.14.4 Start signal selection (Terminal STF, STR, STOP, Pr. 250) You can select the operation of the start signal (STF/STR). Used to select the stopping method (deceleration to a stop or coasting) when the start signal turns off.
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Pr. 179 "STR terminal function selection" only. Changing the terminal assignment using Pr. 178 to Pr. 189 "Input terminal function selection" may affect the other functions. Please make setting after confirming the function of each terminal. FR-A700 EC 6 - 295...
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Function assignment of external terminals Parameter 3-wire type (terminals STF, STR and STOP) A three-wire type connection is shown below. The start self-holding selection becomes valid when the STOP signal is turned on. In this case, the forward/reverse rotation signal functions only as a start signal. If the start signal (STF or STR) is turned on and then off, the start signal is held and makes a start.
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Function assignment of external terminals Start signal selection Setting Inverter Status Pr. 250 = 0 to 100s/9999 Pr. 250 = 1000 to 1100s/8888 Stop Stop Reverse rotation Forward rotation Forward rotation Stop Reverse rotation Tab. 6-85: Start signal selection FR-A700 EC 6 - 297...
Function assignment of external terminals Parameter 6.14.5 Output terminal function selection (Pr. 190 to Pr. 196) You can change the functions of the open collector output terminal and relay output terminal. Initial Refer to Name Initial Signal Setting Range Parameters referred to Value Section RUN terminal...
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Output when the motor is run- Reverse rotation output — 6-306 ning in reverse direction. Output in the regenerative status under vector control Regenerative status output operation. Tab. 6-86: Output terminal function assignment (2) FR-A700 EC 6 - 299...
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Function assignment of external terminals Parameter Setting Related Parame- Refer to Terminal Function Operation Source Sink ters Page Logic Logic Output during pre-exitation or Operation ready 2 operation under real sensor- — 6-304 less vector control. Output when the output fre- Low speed output quency reduces below the Pr.
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Pr. 503, Pr. 504 6-531 or above the Pr. 504 setting. Output to the terminal when a Remote output Pr. 495–Pr. 497 6-315 value is set to the parameter. Tab. 6-86: Output terminal function assignment (4) FR-A700 EC 6 - 301...
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Function assignment of external terminals Parameter Setting Related Parame- Refer to Terminal Function Operation Source Sink ters Page Logic Logic Output when the inverter pro- Minor fault output 2 tective function is activated to Pr. 875 6-358 stop the output (major fault) Output when a minor fault 6-445, Minor fault output...
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Restart- (during (during Start Start Start- Start- opera- Brake stop) stop) Signal is signal is signal signal tion) RUN2 RUN3 Tab. 6-87: Output signal output This signal turns OFF during power failure or undervoltage. FR-A700 EC 6 - 303...
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Function assignment of external terminals Parameter Inverter operation ready signal (RY, RY2 signal) and inverter running signal (RUN, RUN2, RUN3 signal) under real sensor less vector control and vector control When the inverter is ready to operate, the output of the operation ready signal (RY) is on. It is also on during inverter running.
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(output terminal selection function) referring to the table below. Pr. 190 to Pr. 196 Setting Output signal Source logic Sink logic RUN2 RUN3 Tab. 6-89: Assignment of the signals NOTE The RUN signal is assigned to the terminal RUN in the initial setting. FR-A700 EC 6 - 305...
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Function assignment of external terminals Parameter Forward rotation and reverse rotation signal (Y30, Y31) The status during forward rotation (Y30) and reverse rotation (Y31) are output from the actual motor speed under vector control. Y30 and Y31 signals turn off during pre-excitation (zero speed, servo lock) under speed control or torque control operation.
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Fig. 6-134: Forward and reverse rotation of the motor NOTES This signal is always off during V/f control, advanced magnetic flux vector control or real sensorless vector control. The FR-A7AP (option) is necessary for vector control. FR-A700 EC 6 - 307...
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Function assignment of external terminals Parameter Alarm output signal (ALM, ALM2) If the inverter comes to an alarm stop, the ALM and ALM2 signals are output. (Refer to section 7.1 for the alarm description.) The ALM2 signal remains on during a reset period after alarm occurrence. When using the ALM2 signal, set "94"...
This parameter can be used to ensure that the running frequency has been reached to provide the operation start signal etc. for related equipment. Fig. 6-136: Output of the SU signal Running frequency Adjustment frequency range Pr. 41 signal I000020C FR-A700 EC 6 - 309...
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Function assignment of external terminals Parameter Output frequency detection (FU (FB) signal, FU2 (FB2) signal, FU3 (FB3) signal, Pr. 42, Pr. 43, Pr. 50, Pr. 116) When the output frequency rises to or above the Pr. 42 setting, the output frequency detection signal (FU) is output.
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When terminal assignment is changed using Pr. 190 to Pr. 196 (output terminal function selection), the other functions may be affected. Please make setting after confirming the function of each terminal FR-A700 EC 6 - 311...
Function assignment of external terminals Parameter 6.14.7 Output current detection function (Y12, Y13, Pr. 150 to Pr. 153, Pr. 166, Pr. 167) The output power during inverter running can be detected and output to the output terminal. Initial Setting Refer to Name Description Parameters referred to...
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To prevent the machine and equipment from resulting in hazardous conditions by use of the zero current detection signal, install a safety backup such as an emergency brake. FR-A700 EC 6 - 313...
Function assignment of external terminals Parameter 6.14.8 Detection of output torque (TU signal, Pr. 864) Sensorless Sensorless Sensorless Magnetic flux Magnetic flux Magnetic flux Vector Vector Vector Output the signal when the motor torque rises above the setting value. This function can be used for electromagnetic brake operation, open signal, etc.
RS-485 port or by communication from the communication option. Set "96" (source logic) or "196" (sink logic) to any of Pr. 190 to Pr. 196 "Output terminal function selection", and assign the remote output (REM) signal to the terminal used for remote output. FR-A700 EC 6 - 315...
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Function assignment of external terminals Parameter When you refer to Fig. 6-141 and set "1" to the terminal bit (terminal where the REM signal has been assigned) of Pr. 496 or Pr. 497, the output terminal turns on (off for sink logic). By setting "0", the output terminal turns off (on for sink logic).
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When Pr. 495 = 1, take such a step as to connect R1/L11, S1/L21 and P/+, N/− to ensure that control power will be retained to some degree. If you do not take such a step, the output signals provided after power-on are not guaranteed. FR-A700 EC 6 - 317...
Monitor display and monitor output signals Parameter 6.15 Monitor display and monitor output signals Refer to Purpose Parameters that must be set Section Display motor speed Speed display and speed setting Pr. 37, Pr. 144, 6.15.1 Set speed Pr. 505, Pr. 811 Change PU monitor display data DU/PU main display data selection Pr.
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Pr. 144 and the value is "4" when Pr. 37 = 0 and Pr. 144 = 0. Hz is in 0.01Hz increments, machine speed is in 1m/min increments, and r/min is in 1r/min increments. Pr. 505 is always set as frequency (Hz). FR-A700 EC 6 - 319...
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Monitor display and monitor output signals Parameter NOTES In the V/f control mode, the output frequency of the inverter is displayed in terms of synchro- nous speed, and therefore, it is unequal to the actual speed by motor slip. This display changes to the actual speed (estimated value calculated based on the motor slip) when the advanced magnetic flux vector control or real sensorless vector control is selected, and actual speed from the encoder when encoder feed back control or vector control is per-...
The monitor value is cleared when it exceeds the maximum value. The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 "Parameter write selection". FR-A700 EC 6 - 321...
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Monitor display and monitor output signals Parameter Monitor description list (Pr. 52) ● Set the monitor to be displayed on the operation panel (FR-DU07) and parameter unit (FR- PU04/FR-PU07) in Pr. 52 "DU/PUmain display data selection". ● Set the monitor to be output to the terminal CA ((analog current output) in Pr. 54 "CA terminal function selection".
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100% Display the set point, measured value PID measured value 0.1% 100% and deviation during PID control. (Refer to page 6-488 for details.) PID deviation value 0.1% — — Tab. 6-92: Monitor description list (2) FR-A700 EC 6 - 323...
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PLC function output 0.1% — 100% tion. Refer to the FR-A700 PLC function programming manual for details of the PLC function. Tab. 6-92: Monitor description list (3) Frequency setting to output terminal status on the PU main monitor are selected by "other monitor selection"...
Page 505
When Pr. 52 is set to "20" (cumulative energizing time), the monitor is displayed on the oper- ation panel as described below. Power on monitor (first monitor) Second monitor Third monitor Alarm monitor Output frequency Output current Cumulative energizing time I001160C Fig. 6-144: Selection of the third monitor FR-A700 EC 6 - 325...
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Monitor display and monitor output signals Parameter Display set frequency during stop (Pr. 52) When Pr. 52 is set to "100", the set frequency monitor is displayed during a stop and the output frequency monitor is displayed during operation. (Hz indication flickers during stop and is lit dur- ing running.) Parameter 52 During running/stop...
Page 507
LED is on. FR-A7AY Centre line is always on FR-A7AR Decimal point LED of second digit LED is always on I001163E Fig. 6-147: Displaying the signal states when the option FR-A7AY or FR-A7AR is mounted FR-A700 EC 6 - 327...
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Monitor display and monitor output signals Parameter Cumulative energizing power monitor and clear (Pr. 170, Pr. 891) On the cumulative energizing power monitor (Pr. 52 = 25), the output power monitor value is added up and is updated in 1h increments. The operation panel (FR-DU07), parameter unit (FR- PU04/FR-PU07) and communication (RS-485 communication, communication option) display units and display ranges are as indicated below: FR-DU07...
Page 509
The number of display digits on the cumulative energizing time (Pr. 52 = 20), actual opera- tion time (Pr. 52 = 23), cumulative energizing power (Pr. 52 = 25) or cumulative saving power monitor (Pr. 52 = 51) does not change. FR-A700 EC 6 - 329...
Monitor display and monitor output signals Parameter 6.15.3 CA, AM terminal function selection (Pr. 55, Pr. 56, Pr. 867, Pr. 869) For signal output, two different output terminals are available: analog current output terminal CA and analog voltage output terminal AM. Set the reference of the signal output from terminal CA and AM.
Page 511
AM and the current value are proportional. (The maximum output voltage is 10VDC.) Fig. 6-150: Torque monitoring reference 10V DC/ 20mA DC 400 % 150 % (Initial value) I001598E Setting range of Pr. 866 FR-A700 EC 6 - 331...
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Monitor display and monitor output signals Parameter Terminal AM response adjustment (Pr. 867) Using Pr. 867, the output voltage response of the terminal AM can be adjusted within the range 0 to 5s. Increasing the setting stabilizes the terminal AM output more but reduces the response level. (Setting "0"...
Calibration parameter C0 (Pr. 900) allows the output current ratios (gains) to be adjusted according to the meter scale. Note that the maximum output current is 20mA DC. Fig. 6-151: Connecting an analog meter to the CA output Ammeter 0–20mA DC I001166E FR-A700 EC 6 - 333...
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Monitor display and monitor output signals Parameter Calibration of the zero point of the meter connected to terminal CA is performed with C9 (Pr. 930). Calibration of the maximum meter deflection is performed with C11 (Pr. 931). The value to be associated with the zero point for the signal output to terminal CA is entered in C8 (Pr.
Page 515
When C1 is used to calibrate the full meter deflection in this mode a value of "1000" is displayed. Afterwards you can then reset Pr. 158 to the required monitor signal setting. FR-A700 EC 6 - 335...
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Monitor display and monitor output signals Parameter How to calibrate the terminal CA when using the operation panel FR-DU07 The following example shows how to calibrate the maximum value of the CA terminal to the 60Hz output frequency. This operation is performed in PU mode. Operation Display (When Pr.
You can restart the inverter without stopping the motor in the following cases. ● when commercial power supply operation is switched to inverter operation ● when power comes back on after an instantaneous power failure ● when motor is coasting at start FR-A700 EC 6 - 337...
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Operation selection at power failure Parameter Initial Setting Refer to Name Description Parameters referred to Value Range Section 00052 or less ....0.5s Acceleration time 6.11.1 00083–00250....... 1s Acceleration/ 6.11.1 00310, 0,1800...... 3s deceleration time 02160 or more ..... 5s increments Starting frequency 6.11.2...
Page 519
The CS signal is assigned to the terminal CS in the initial setting. By setting "6" in any of Pr. 178 to Pr. 189 (input terminal function selection), you can assign the CS signal to the other terminal. FR-A700 EC 6 - 339...
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Operation selection at power failure Parameter Automatic restart operation selection (Pr. 162, Pr. 299) ● With frequency search When "0" (initial value) or "10" is set in Pr. 162, the inverter smoothly starts after detecting the motor speed upon power restoration. During reverse rotation, the inverter can be restarted smoothly as the direction of rotation is detected.
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When reverse rotation is detected when Pr. 78 = 1 (reverse rotation disabled), the rotation direction is changed to forward rotation after decelerates in reverse rotation when the start command is forward rotation. The inverter will not start when the start command is reverse rotation. FR-A700 EC 6 - 341...
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Operation selection at power failure Parameter ● Without frequency search When Pr. 162 = "1" or "11", automatic restart operation is performed in a reduced voltage system, where the voltage is gradually risen with the output frequency unchanged from prior to an instantaneous power failure independently of the coasting speed of the motor.
Page 523
When Pr. 162 = "0" or "2",auto- matic restart operation is performed at the first start after power supply-on, but the inverter starts at the starting frequency at the second time or later. FR-A700 EC 6 - 343...
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Operation selection at power failure Parameter Restart coasting time (Pr. 57) Coasting time is the time from when the motor speed is detected until automatic restart control is started. Set Pr. 57 to "0" to perform automatic restart operation. The coasting time is automatically set to the value below.
Page 525
If this is not the case the motor could be reversed unexpectedly, which can damage or even destroy the motor. FR-A700 EC 6 - 345...
Operation selection at power failure Parameter 6.16.2 Power failure-time deceleration-to-stop function (Pr. 261 to Pr. 266, Pr. 294) When a power failure or under voltage occurs, the inverter can be decelerated to a stop or can be decelerated and re-accelerated to the set frequency. Initial Setting Refer to...
Page 527
(slope) from Pr. 265 to a stop can be changed. Power supply Output frequency Pr. 262 Pr. 264 Pr. 265 Pr. 266 Time I001173E Fig. 6-164: Parameters for stop selection at power failure FR-A700 EC 6 - 347...
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Operation selection at power failure Parameter Power failure stop mode (Pr. 261 = 1 or 11) If power is restored during power failure deceleration, deceleration to a stop is continued and the inverter remains stopped. To restart, turn off the start signal once, then turn it on again. Pr.
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Power supply During power failure Output frequency During deceleration at occurrence of Automatic restart after power failure instantaneous power failure Time Reset time + Pr. 57 I001177E Fig. 6-168: Operation continuation at instantaneous power failure FR-A700 EC 6 - 349...
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Operation selection at power failure Parameter Undervoltage avoidance function (Pr. 261 = 11 or 12, Pr. 294) When Pr. 261 = "11, 12", the deceleration time is automatically adjusted (shortened) to prevent undervoltage from occuring during deceleration at an instantaneous power failure. Adjust the slope of frequency decrease and response level with Pr.
An alarm output is provided during retry operation. Set the waiting time from when an Retry waiting time 50Hz 0–10s inverter alarm occurs until a retry is made. Clear the number of restarts succeeded Retry count display erase by retry. FR-A700 EC 6 - 351...
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Operation setting at alarm occurrence Parameter Retry operation automatically resets an alarm and restarts the inverter at the starting frequency when the time set in Pr. 68 elapses after the inverter stopped due to the alarm. Retry operation is performed by setting Pr. 67 to any value other than "0". Set the number of retries at alarm occurrence in Pr.
Page 534
Operation setting at alarm occurrence Parameter NOTES For a retry error, only the description of the first alarm is stored. When an inverter alarm is reset by the retry function at the retry time, the accumulated data of the electronic thermal relay function, regeneration converter duty etc. are not cleared. (Different from the power-on reset.) CAUTION: When you have selected the retry function, stay away from the motor and machine...
When an alarm occurs, the output terminals SU, IPF, OL, FU output the signal in the above table, independently of the Pr. 190 to Pr. 196 "Output terminal function selection" settings. Please be careful when inverter control setting has been made with the output signals of Pr. 190 to Pr. 196. FR-A700 EC 6 - 355...
Operation setting at alarm occurrence Parameter 6.17.3 Input/output phase failure protection selection (Pr. 251, Pr. 872) You can disable the output phase failure function that stops the inverter output if one of the inverter output side (load side) three phases (U, V, W) opens. The input phase failure protection selection of the inverter input side (R/L1, S/L2, T/L3) can be made valid.
Name Description Parameters referred to Value Range Section Encoder signal loss Signal loss detection is invalid — detection enable/disable Signal loss detection is valid selection Setting can be made only when the FR-A7AP is mounted. FR-A700 EC 6 - 357...
Operation setting at alarm occurrence Parameter 6.17.6 Fault definition (Pr. 875) When motor thermal protection is activated, an alarm can be output after the motor decelerates to a stop. Initial Setting Refer to Name Description Parameters referred to Value Range Section Normal operation 190–196...
Since output voltage is controlled in energy saving operation mode and by optimum excita- tion control, output current may slightly increase. FR-A700 EC 6 - 359...
Energy saving operation and energy saving monitor Parameter 6.18.2 Energy saving monitor (Pr. 891 to Pr. 899) From the power consumption estimated value during commercial power supply operation, the energy saving effect by use of the inverter can be monitored/output. Initial Refer to Name...
Page 541
Power saving average value × ---------------------------------------------------------------------------------- - Pr. 893 Power Power saving average value represented in savings terms of charge amount 0.01/0.1 — average × Power saving average value Pr. 896 value Tab. 6-100: Power saving monitor list FR-A700 EC 6 - 361...
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Energy saving operation and energy saving monitor Parameter The following table shows the items which can be monitored by the cumulative saving power monitor (Pr. 52 = 51). (The monitor value of the cumulative monitor can be shifted to the right with Pr.
Page 543
By setting the charge (power unit) per 1kWh of power amount in Pr. 896 "Power unit cost", the power saving amount average value monitor displays the charge relative to the power saving average value (power saving average value × Pr. 896). FR-A700 EC 6 - 363...
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Energy saving operation and energy saving monitor Parameter Cumulative saving power monitor ( power saving amount, power saving amount charge, annual power saving amount, annual power saving amount charge) On the cumulative saving power monitor, the monitor data digit can be shifted to the right by the number set in Pr.
Page 545
NOTE Since the speed does not increase above the power supply frequency in commercial power supply operation, it becomes constant when the output frequency rises to or above Pr. 3 "Base frequency". FR-A700 EC 6 - 365...
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Energy saving operation and energy saving monitor Parameter Annual power saving amount, power charge (Pr. 899) By setting the operation time rate [%] (ratio of time when the motor is actually driven by the inverter during a year) to Pr. 899, the annual energy saving effect can be predicted. When the operation pattern is predetermined to some degree, the estimated value of the annual power saving amount can be found by measurement of the power saving amount during a given measurement period.
When using an option sine wave filter (MT-BSL/BSC) for the 02160 or more, set "25" in Pr. 72 (2.5kHz). NOTE When "25" (available with the 02160 or more) is set in Pr. 72, V/f control is forcibly selected. FR-A700 EC 6 - 367...
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Motor noise, noise reduction Parameter Soft-PWM control (Pr. 240) Soft-PWM control is a control system that changes the motor noise from a metallic tone into an unoffending complex tone. PWM carrier frequency automatic reduction function (Pr. 260) For PWM carrier frequency automatic reduction function, the following should be noted. Multiple rating (Pr.
For the terminal 1 and terminal 4 used for analog input, frequency (speed) command, magnetic flux command, torque command, etc. can be selected. Functions change according to the control mode as shown in the tables on the next page. FR-A700 EC 6 - 369...
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Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter V/f Control, Real Sensorless Vector Control, Vector Control Vektorregelung Pr. 868 Advanced Magnetic Speed control Torque control Position control Flux Vector Control Frequency setting (Initial Speed setting auxiliary Speed setting auxiliary —...
Page 552
Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter Selection of analog input specifications For the terminals 2, 4 used for analog input, voltage input (0 to 5V, 0 to 10V) or current input (0 to 20mA) can be selected. Change parameters (Pr.73, Pr.267) and a voltage/current input switch (switch 1, 2) to change input specifications.
Page 553
Override 0 to 5V 0 to ±10V Terminal 1 — Added compensation 0 to ±5V Tab. 6-105: Setting of parameter 73 and 267 Indicates that a frequency command signal of negative polarity is not accepted. FR-A700 EC 6 - 373...
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Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter Set the voltage/current input switch referring to the table below. Terminal 2 Input Specifications Pr. 73 Setting Switch 2 Voltage input (0 to 10V) 0/2/4/10/12/14 1 (initial value)/3/5/11/13/15 Voltage input (0 to 5V) Stromeingang (0–20 mA) 6/7/16/17 Terminal 4 Input Specifications...
Page 555
Setting "1" (0 to 5V DC) or "2" (0 to 10V DC) in Pr. 267 changes the terminal 4 to the voltage input specification. When the AU signal turns on, the terminal 4 input becomes valid. NOTE The wiring length of the terminals 10, 2, and 5 should be 30m maximum. FR-A700 EC 6 - 375...
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Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter Perform operation by analog input current When the pressure or temperature is controlled constant by a fan, pump, etc., automatic oper- ation can be performed by inputting the output signal 0/4 to 20mA of the adjuster to across the terminals 4-5.
Analog command value using terminal terminal 2 Terminal 2 input Terminal 1 input 100 [%] Pr. 243 × ------------------- - Analog command value using terminal terminal 4 Terminal 4 input Terminal 1 input 100 [%] FR-A700 EC 6 - 377...
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Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter Output frequency Output frequency When voltage When voltage across terminals 2-5 across terminals 2-5 is 2.5V (5V) is 2.5V (5V) When voltage When voltage across terminals across terminals 2-5 is 0V 2-5 is 0V −5V −2.5V...
Page 559
The AU signal must be turned on to use the terminal 4. When inputting compensation to multi-speed operation or remote setting, set "1" (compen- sation made) to Pr. 28 "Multi-speed input compensation selection". (Initial value is "0".) FR-A700 EC 6 - 379...
Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter 6.20.4 Response level of analog input and noise elimination (Pr. 74, Pr. 822, Pr. 826, Pr. 832, Pr. 836, Pr. 849) Response level and stability of frequency reference command and torque reference command by analog input (terminal 1, 2, 4) signal can be adjusted.
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According to the Pr. 73 setting Fig. 6-185: Offset-Einstellung Slope determined according to Pr.125 and C2 to C4 Slope does not change Pr.849 setting 100 % (10 V or 5 V) 100 % 200 % I001611E FR-A700 EC 6 - 381...
Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter 6.20.5 Bias and gain of frequency setting voltage (current) [Pr. 125, Pr. 126, Pr. 241, C2 (Pr. 902) to C7 (Pr. 905), C12 (Pr. 917) bis C15 (Pr. 918)] You can set the magnitude (slope) of the output frequency as desired in relation to the frequency setting signal (0 to 5V, 0 to 10V or 0/4 to 20mA DC).
Page 563
— — Tab. 6-108: Terminal 1 functional calibration parameter Use Pr. 148 "Stall prevention level at 0V input" and Pr. 149 "Stall prevention level at 10V" input to adjust bias/gain of stall prevention operation level. FR-A700 EC 6 - 383...
Page 564
Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter Calibration Parameters Terminal Pr. 858 Setting Function Bias setting Gain setting C5 (Pr. 904) Terminal 4 frequency Pr. 126 Terminal 4 frequency Frequency setting bias frequency setting gain frequency command/ (Initial speed...
Page 565
Parameter C15 (Pr. 918) sets the gain for the input signal on terminal 1, i.e. the maximum value of the analog signal connected to terminal 1. When signals exceed this value the frequency set point value is limited to the value stored in Pr. C14 (Pr. 918). FR-A700 EC 6 - 385...
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Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter Initial value 50Hz Gain Pr. 125 C14 (Pr. 918) Bias C2 (Pr. 902) C12 (Pr. 917) 100% Frequency setting signal C3 (Pr. 902) C4 (Pr. 903) C13 (Pr. 917) C15 (Pr.
Page 567
(0 to 5V, 0 to 10V, 0 to 20mA) differ. (For example, 5V (100%) is analog dis- played when 0V and 10V are applied to terminal 2 and terminal 1 respectively in the initial status. Set "0" (initial value is 0% display) in Pr. 241 to use. FR-A700 EC 6 - 387...
Page 568
Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter Frequency setting signal (current) bias/gain adjustment method 1.Method to adjust any point by application of voltage (current) to across the terminals 2-5 (4-5). The following example illustrating the procedure assumes that Pr. 241 is set to "0": Operation Display Confirmation of the RUN indication and...
Page 569
Fig. 6-189: Bias and gain adjustment without application of an reference signal NOTE By pressing the digital dial after step , you can confirm the current frequency setting bias/ gain setting. It cannot be confirmed after execution of step FR-A700 EC 6 - 389...
Page 570
Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter 3.Method to adjust only the frequency without adjustment of a gain voltage (current). (The gain frequency is changed from 50Hz to 40Hz.) Operation Display Turn the digital dial until P.125 (Pr. 125) or P.126 (Pr.
Pr. 868 "Terminal 1 function assignment" and Pr. 858 "Terminal 4 function assignment" to change functions. (Refer to section 6.20.1). FR-A700 EC 6 - 391...
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Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter Relationship between analog input terminal and calibration parameter Calibration Parameters Terminal Pr. 868 Setting Function Bias setting Gain setting C2 (Pr. 902) Terminal 2 frequency Pr. 125 Terminal 2 frequency setting bias frequency setting gain frequency C3 (Pr.
Page 573
— — Tab. 6-112: Terminal 4 functional calibration parameter Use Pr. 148 "Stall prevention level at 0V input" and Pr. 149 "Stall prevention level at 10V input" to adjust bias/gain of stall prevention operation level. FR-A700 EC 6 - 393...
Page 574
Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter Change the frequency at maximum analog input [C18 (Pr. 920), C40 (Pr. 933)] To change the torque setting (gain) of the maximum analog input voltage (current), set a value to C18 (Pr.
Page 575
(4-5). (Refer to page 6-398) ● Method to adjust torque only without adjustment of voltage (current). (Refer to page 6-399). NOTE When voltage/current input specifications were switched using Pr. 73 and Pr. 267, perform calibration without fail. FR-A700 EC 6 - 395...
Page 576
Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter Analog input display unit changing (Pr. 241) You can change the analog input display unit (%/V/mA) for analog input bias/gain calibration. Display unit of C17 (Pr. 919), C19 (Pr. 920), C39 (Pr. 932), C41 (Pr. 933) changes as follows accrding to the terminal input specifications set in Pr.
Page 577
Fig. 6-193: Bias and gain adjustment by application of an reference signal NOTE Error code Er3 may be displayed when you save if torque setting value of gain and bias are less than approx. 5% apart. If this happens correct the frequency settings and save again. FR-A700 EC 6 - 397...
Page 578
Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter 2.Method to adjust any point without application of a voltage (current) to across terminals 2-5 (4-5). (This example shows how to change from 8V to 10V, assuming that Pr. 241 is set to "1".) Operation Display Confirmation of the RUN indication and...
Page 579
6-394). CAUTION: Take care when setting any value other than "0" as the bias torque at 0V (0mA). Torque is applied to the motor by merely tuning on the start signal without torque command. FR-A700 EC 6 - 399...
Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter 6.20.7 4mA input check of current input (Pr. 573) When inputting 4 to 20mA current to terminal 2 or terminal 4, decrease in analog current input is detected to enable continuous operation even if input has decreased. Initial Setting Refer to...
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Fig. 6-198: 4mA input check during PID control (reverse action, Pr. 573 = 1) NOTE When terminal assignment is changed using Pr. 190 to Pr. 196 "Output terminal function selection", the other functions may be affected. Please make setting after confirming the function of each terminal. FR-A700 EC 6 - 401...
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Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter The function 4mA input check is related to following functions: Refer to Function Operation (Pr. 573 = 1) Page Minimum frequency Even if the input current decreases, minimum frequency setting clamp is valid. 6.8.1 Multi-speed operation Operation by multiple speed signal has precedence even if input current 6.10.1...
14–17/ PU stop selection tion are set. 100–103/ more 114–117 The Pr. 75 value can be set any time. Also, if parameter (all) clear is executed, this setting will not return to the initial value. FR-A700 EC 6 - 403...
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Misoperation prevention and parameter setting restriction Parameter Disconnected PU Reset Limit Pr. 75 Reset Selection PU Stop Selection Detection (01800 or more) Reset input always enabled. If the PU is discon- nected, operation will be Pressing the Enabled only when the protective continued.
Page 585
The motor will also decelerate to a stop (PU stop) when is input during operation in the PU mode through RS-485 communication with Pr. 551 "PU mode operation command source selection" set to "1" (PU mode RS-485 terminal). FR-A700 EC 6 - 405...
Page 586
Misoperation prevention and parameter setting restriction Parameter Restarting method when stop was made by pressing the STOP key from the PU during external operation ("PS" is displayed) Operation panel FR-DU07 After the motor has decelerated to a stop, turn off the STF or STR signal. Press the PU/EXT key to change to the PU operation mode.
Page 587
(THM, THT) or an over current trip (OC1 to OC3) occurs consecutively twice. When Pr. 75 = "100 to 103, 114 to 117", reset limit is made valid. NOTE When the power-on reset (no control power is supplied) is made, the thermal cumulative amount is cleared. FR-A700 EC 6 - 407...
Misoperation prevention and parameter setting restriction Parameter 6.21.2 Parameter write selection (Pr. 77) You can select whether write to various parameters can be performed or not. Use this function to prevent parameter values from being rewritten by misoperation. Initial Setting Refer to Name Description...
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Number of second motor poles Second motor excitation current Rated second motor voltage Rated second motor frequency 458 to 462 Second motor constant Second motor auto tuning setting/status Tab. 6-117: Parameters that cannot be written during operation FR-A700 EC 6 - 409...
Page 590
Misoperation prevention and parameter setting restriction Parameter Parameter Description Frequency command sign selection (CC-Link) (Parameter for the plug-in option FR-A7NC) Energizing time carrying-over times Operating time carrying-over times Multiple rating setting Second motor online auto tuning Control method selection Easy gain tuning selection Terminal 4 function assignment Torque current Second motor torque current...
This parameter is valid for all of the reverse rotation and forward rotation keys of the operation panel (FR-DU07), parameter unit (FR-PU04/FR-PU07), signals (STF, STR signals) via external terminals, and the forward and reverse rotation commands through communication. FR-A700 EC 6 - 411...
Misoperation prevention and parameter setting restriction Parameter 6.21.4 User groups (Pr. 160, Pr. 172 to Pr. 174) Parameter which can be read from the operation panel and parameter unit can be restricted. In the initial setting, only the simple mode parameters are displayed. Initial Setting Refer to...
Page 593
Press the SET key to set. "P.173" and "3" are displayed alternately. To continue parameter registration, repeat steps Flicker ... Registration of Pr. 3 to user group completed! I001199E Fig. 6-200: When registering Pr. 3 to user group FR-A700 EC 6 - 413...
Page 594
Misoperation prevention and parameter setting restriction Parameter Deletion of parameter from user group (Pr. 174)) Operation Display Confirmation of the RUN indication and operation mode indication. The inverter must be at a stop. The inverter must be in the PU operation mode (using the PU/EXT key).
Can be shifted to PU operation mode (output stop during external operation) X12 signal OFF: Operation mode can not be switched to PU operation mode. The above parameter can be changed during a stop in any operation mode. FR-A700 EC 6 - 415...
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Selection of operation mode and operation location Parameter Operation mode basics The operation mode is to specify the source of inputting the start command and set frequency of the inverter. ● Select the "external operation mode" when performing operation by basically using the control circuit terminals and providing potentiometers, switches, etc.
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● PU-external operation switch-over signal (X16) (refer to page 6-424) ● PU-NET operation switchover signal (X65) (refer to page 6-425) ● External-NET operation switchover signal (X66) (refer to page 6-425) ● Pr. 340 "Communication start-up mode selection" (refer to page 6-427) FR-A700 EC 6 - 417...
Page 598
Selection of operation mode and operation location Parameter Operation mode selection flow In the following flowchart, select the basic parameter setting and terminal connection related to the operation mode: START Connection Parameter setting Operation Where is the start command source? From external (STF/STR terminal) Where is the frequency set?
Page 599
The STF and STR signal are used as a start command, and the terminal 2, 4, multi-speed set- ting, JOG signal, etc. are used as frequency setting. Fig. 6-205: External operation mode Inverter Power supply Motor Forward rotation start Reverse rotation start Frequency setting potentiometer I001205E FR-A700 EC 6 - 419...
Page 600
Selection of operation mode and operation location Parameter PU operation mode (Pr. 79 = 1) Select the PU operation mode when performing operation by only the key operation of the oper- ation panel (FR-DU07) or parameter unit (FR-PU04/FR-PU07). Also select the PU operation mode when making communication using the PU connector.
Page 601
(FR-DU07) or parameter unit (FR-PU04/FR-PU07). Select "4" for Pr. 79. You cannot change to the other operation mode by using the PU/EXT-key. Fig. 6-208: Combined operation mode 2 Inverter Power Motor supply Frequency setting potentiometer I001208E FR-A700 EC 6 - 421...
Page 602
Selection of operation mode and operation location Parameter Switch-over mode (Pr. 79 = 6) While continuing operation, you can switch between the PU operation, external operation and network operation (when RS-485 terminals or communication option is used). Operation Mode Switching Switching Operation/Operating Status External operation ⇒...
Page 603
Pr. 17. When Pr. 17 = 2, read ON as OFF and OFF as ON in the above explana- tion. Changing the terminal assignment using Pr. 178 to Pr. 189 "Input terminal function selec- tion" may affect the other functions. Please make setting after confirming the function of each terminal. FR-A700 EC 6 - 423...
Page 604
Selection of operation mode and operation location Parameter Switching of operation mode by external terminal (X16) When external operation and operation from the operation panel are used together, use of the PU-external operation switching signal (X16) allows switching between the PU operation mode and external operation mode during a stop (during a motor stop, start command off).
Page 605
PU operation mode when the X16 signal is off. PU operation mode also when Pr. 550 "NET mode operation command source selection" = 1 (communication option control source) and the communication option is not fitted. External operation mode when the X16 signal is on. FR-A700 EC 6 - 425...
Page 606
Selection of operation mode and operation location Parameter When switching between the network operation mode and external operation mode: Set Pr. 79 to "0" (initial value), "2", "6" or "7". (At the Pr. 79 setting of "7", the operation mode can be switched when the X12 (MRS) signal turns on.) Set "0"...
The above parameters can be changed during a stop in any operation mode. The parameters can be set whenever the communication option is connected. (Refer to section 6.21.4.) FR-A700 EC 6 - 427...
Page 608
Selection of operation mode and operation location Parameter Specify operation mode at power on (Pr. 340) Depending on the Pr. 79 and Pr. 340 settings, the operation mode at power on (reset) changes as described below: Operation Mode at Power on, Power Pr.
Since Pr. 550 = 9999 (Automatic recognition of the communication option) in the initial set- ting, parameter write, start command and frequency setting cannot be executed by commu- nication using the inverter RS-485 terminals when the communication option is fitted. (Monitor and parameter read can be performed.) FR-A700 EC 6 - 429...
Page 610
Selection of operation mode and operation location Parameter Select the control source of the PU operation mode (Pr. 551) Either the PU connector or inverter RS-485 terminals can be specified as the source of control in the PU operation mode. In the PU operation mode, set Pr.
Page 612
Selection of operation mode and operation location Parameter Operation Mode Oper- External/PU External/PU NET operation NET operation ation Condition combined combined (when Command External (when RS-485 Loca- (Pr. 551) PU operation operation operation communica- operation terminals are tion mode 1 mode 2 tion option is used)
Page 613
When Pr. 550 "NET mode operation command source selection" = 0 (communication option valid) or Pr. 550 "NET mode operation command source selection" = 9999 and the communication option is fitted FR-A700 EC 6 - 433...
Page 614
Selection of operation mode and operation location Parameter Selection of control source in network operation mode (Pr. 338, Pr. 339) As control sources, there are the operation command sources that control the signals related to the inverter start command and function selection and the speed command source that controls the signals related to frequency setting.
Page 615
Operation is invalid from either of external terminal and communication. Compensation: Control by signal from external terminal is only valid when Pr. 28 "Multi-speed input compensation selection" = 1 NOTE The control source of communication is as set in Pr. 550 and Pr. 551. FR-A700 EC 6 - 435...
Page 616
Selection of operation mode and operation location Parameter Switching of command source by external terminal (X67) In network operation mode, the command source switching signal (X67) can be used to switch the operation command source and speed command source. This signal can be utilized to con- trol the signal input from both the external terminal and communication.
Pins No. 2) and 8) provide power to the operation panel or parameter unit. Do not use these pins for RS-485 communication. Do not connect the PU connector to the computer's LAN board, FAX modem socket or tele- phone modular connector. The product could be damaged due to differences in electrical specifications. FR-A700 EC 6 - 437...
Page 618
Communication operation and setting Parameter PU connector communication system configuration and wiring Fig. 6-210: Inverter Connecting the PU to the PU connector Operation panel FR-DU07 connector FR-ADP connector RJ-45- connector RJ-45- connector FR-A5CBL I001210E Fig. 6-211: Connecting the RS-485 interface of a PC to Inverter the PU connector Station 0...
Page 619
Note that this cable can only be used for connection of a frequency inverter. If you need to connect multiple frequency inverters to one another in series use the second serial interface (screw terminals). FR-A700 EC 6 - 439...
Communication operation and setting Parameter 6.23.2 RS-485 terminals Terminating resistor switch Factory-set to "OPEN". Set only the terminating resistor switch of the remotest inverter to the "100 Ω" position. I001033E Fig. 6-214: RS-485 terminals layout Name Description RDA1 (RXD1+) Inverter receive+ RDB1 (RXD1−) Inverter receive−...
Page 621
Tip dimensions: 0.4mm × 2.5mm Tab. 6-132: Connection to the RS-485 terminals CAUTION: Under tightening can cause cable disconnection or malfunction. Over tightening can cause a short circuit or malfunction due to damage to the screw or unit. FR-A700 EC 6 - 441...
Page 622
Communication operation and setting Parameter RS-485 terminal system configuration ● Connection of a computer to the inverter (1 : 1connection) Inverter Inverter RS-485 RS-485 terminal terminal Maximum RS-232C RS-485 cable interface Converter Twisted pair cable Twisted pair cable I001214E Fig. 6-216: Connection of a computer to one inverter Set the terminating resistor switch to the "100 Ω"...
Page 623
For branching, connect the wires as shown below. To receiving terminal To computer send of the next inverter To receiving terminal To computer receive of the next inverter To next inverter To computer ground To earth terminal FR-A700 EC 6 - 443...
Page 624
Communication operation and setting Parameter 2-wire type connection If the computer is 2-wire type, pass wires across reception terminals and transmission terminals of the RS-485 terminal to enable 2-wire type connection with the inverter. Fig. 6-220: Inverter Computer 2-wire type connection Transmission enable Reception...
Set the waiting time between data 0–150ms transmission to the inverter and PU communication 9999 response. waiting time setting 9999 Set with communication data. Without CR/LF PU communication CR/LF presence/absence With CR selection With CR/LF FR-A700 EC 6 - 445...
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Communication operation and setting Parameter RS-485 terminal communication related parameter Initial Setting Refer to Pr. No. Name Description Parameters referred to Value Range Section 0–31 RS-485 communication Set the inverter station number. — station (same specifications as Pr. 117) (0–247) Used to select the communication 3/6/12/24/ RS-485 communication...
When Pr. 342 is set to "1" (only RAM write), the new values of the parameters will be cleared at power supply-off of the inverter. Therefore, the parameter values available when power is switched on again are the values stored in EEPROM previously. FR-A700 EC 6 - 447...
Communication operation and setting Parameter 6.23.5 Mitsubishi inverter protocol (computer link communication) You can perform parameter setting, monitor, etc. from the PU connector or RS-485 terminals of the inverter using the Mitsubishi inverter protocol (computer link communication). Communication specifications Related Item Description Parameters...
Page 629
In the communication request data from the computer to the inverter, 10ms or more is also required after "no data error (ACK)". (Refer to page 6-453.) The inverter response to the inverter reset request can be selected. (Refer to page 6-459, Tab. 6-139.) FR-A700 EC 6 - 449...
Page 630
Communication operation and setting Parameter ● Communication request data from the computer to the inverter Number of Characters Format Inverter Waiting Instruction station Data Sum check (Data write) code time number Inverter Waiting A’ Instruction station Data Sum check (Data write) code time number...
Page 631
When Pr. 123, Pr. 337 "Waiting time setting" ≠ 9999, create the communication request data NOTES without "waiting time" in the data format. (The number of characters decreases by 1.) The data check time changes depending on the instruction code. (Refer to page 6-454.) FR-A700 EC 6 - 451...
Communication operation and setting Parameter ● Sum check code The sum check code is 2-digit ASCII (hexadecimal) representing the lower 1 byte (8 bits) of the sum (binary) derived from the checked ASCII data. Example 1 Binary code Station Instruction Data check Computer...
The specified command does not exist. is not brought to alarm stop. Invalid data has been specified for parameter write, fre- Data range error quency setting, etc. — — — — — — — — — Tab. 6-136: Error codes FR-A700 EC 6 - 453...
Communication operation and setting Parameter ● Response time Data sending time (Refer to the following formula) Inverter data processing time =Waiting time+Data check time (setting × 10ms) (Depends on the Computer instruction code (see Tab. 6-138)) ⇓ Data flow Inverter Time Inverter 10ms or more necessary...
Reception error Reception error PU connector communication, Pr. 121 = 9999 Alarm E.PUE Computer ⇓ Data flow Wrong Wrong Normal Inverter Inverter ⇓ Data flow Computer Reception error Reception error I001354E Fig. 6-225: Data transmission error FR-A700 EC 6 - 455...
Page 636
Communication operation and setting Parameter Open cable detection (Pr. 122, Pr. 336) If disconnection (communication stop) is detected between the inverter and computer as a result of disconnection check, a communication error (PU connector communication: E.PUE, RS-485 terminal communication: E.SER) occurs and the inverter output is shut off. Disconnection check is made when the setting is any of "0.1s"...
Page 637
Fig. 6-227: Program example Line number Initial setting of I/O file Send data processing 1000 Receive data Data setting processing Sum code calculation Interrupt Data import Data send Screen display 1040 fr-epb28 Fig. 6-228: General flow FR-A700 EC 6 - 457...
Page 638
Communication operation and setting Parameter NOTES Always set the communication check time interval before starting operation to prevent haz- ardous conditions. Data communication is not started automatically but is made only once when the computer provides a communication request. If communication is disabled during operation due to sig- nal cable breakage etc., the inverter cannot be stopped.
Page 639
Read (B.E/D) (extended) signals such as forward rotation, reverse rotation and inverter running (RUN). Inverter status monitor Read (Refer to page 6-465 for details.) (B.E’/D) Tab. 6-139: Setting of the instruction codes and data (1) FR-A700 EC 6 - 459...
Page 640
Communication operation and setting Parameter Number Read/ Instruction of Data No. Item Data Description Code Digits write (Format) Set frequency (RAM) Read the set frequency/speed from the RAM or EEPROM. H0000 to HFFFF: Set frequency in 0.01Hz Read increments Set frequency (B.E/D) Speed in 1r/min increments (EEPROM)
Page 641
ENQ 00 60 0 FB STX 00 0000 ETX 25 Tab. 6-140: Example for data transmission To read/write C3 (Pr. 902) and C6 (Pr. 904) after inverter reset or parameter clear, execute from step again. FR-A700 EC 6 - 461...
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Communication operation and setting Parameter ● List of calibration parameters Instruction Instruction code code Name Name Terminal 2 frequency setting Terminal 1 bias frequency (902) (917) bias frequency (speed) Terminal 2 frequency setting Terminal 1 bias (speed) (902) (917) bias Terminal 2 frequency setting Terminal 1 gain frequency (903)
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— — — — — — — — — Details of option output terminal monitor (output terminal status of FR-A7AY/A7AR)-all terminals are off when an option is not fitted — — — — — — FR-A700 EC 6 - 463...
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Communication operation and setting Parameter ● Alarm data Refer to section 7.1 for details of alarm description. Data Description Data Description Data Description No alarm E.PTC E.OD E.OC1 E.OPT E.MB1 E.OC2 E.OP3 E.MB2 E.OC3 E.PE E.MB3 E.OV1 E.PUE E.MB4 E.OV2 E.RET E.MB5 E.OV3...
Page 645
8 to bit 11 are invalid in the initial status. When using bit 8 to bit 11, change the signals with Pr. 185, Pr. 186, Pr. 188, Pr. 189 "Input terminal function selection" (section 6.14.1). (Reset can be executed with the instruction code HFD.) FR-A700 EC 6 - 465...
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Communication operation and setting Parameter ● Inverter status monitor Instruction Item Bits Description Example Code b0: RUN (inverter running) b1: Forward rotation Example 1: H02 (During forward rotation) b2: Reverse rotation b3: SU (up to frequency) Inverter b4: OL (overload) status b5: IPF (instantaneous Example 2: H80 (Stop at alarm occurrence)
When the communication option is fitted with Pr. 550 "NET mode operation command source selection" set to "9999" (initial value), the command source (e.g. run command) from the RS-485 terminals is invalid. (Refer to section 6.22.3.) FR-A700 EC 6 - 467...
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Communication operation and setting Parameter Communication specifications Related Item Description Parameters Communication protocol Modbus-RTU protocol Pr. 549 Conforming standard EIA-485 (RS-485) — Number of inverters connected 1 : N (maximum 32 units), setting is 0 to 247 stations Pr. 331 Can be selected from 300, 600, 1200, 2400, 4800, 9600, Communication speed Pr.
Page 649
In this communication, the slaves do not return a response to the master. NOTE The slave executes the function independently of the inverter station number setting (Pr. 331) during broadcast communication. FR-A700 EC 6 - 469...
Page 650
Communication operation and setting Parameter Message frame (protocol) Communication method Basically, the master sends a query message (question) and the slave returns a response mes- sage (response). When communication is normal, Device Address and Function Code are cop- ied as they are, and when communication is abnormal (function code or data code is illegal), bit 7 (= 80h) of Function Code is turned on and the error code is set to Data Bytes.
Page 651
Data are read in order of Hi byte Data and Lo byte, and set in order of starting address data, starting address + 1 data, starting address + 2 data, ... Tab. 6-150: Description of normal response FR-A700 EC 6 - 471...
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Communication operation and setting Parameter Example To read the register values of 41004 (Pr. 4) to 41006 (Pr. 6) from the slave address 17 (H11). Query message Slave Ad- Function Starting Address No. of Points CRC Check dress (8 bit) (8 bit) (8 bit) (8 bit)
Page 653
Same data as the query message. NOTE For broadcast communication, no response is returned in reply to a query. Therefore, the next query must be made when the inverter processing time has elapsed after the previous query. FR-A700 EC 6 - 473...
Page 654
Communication operation and setting Parameter ● Function diagnosis (H08 or 08) A communication check can be made since the query message sent is returned unchanged as a response message (function of subfunction code H00). Subfunction code H00 (Return Query Data). Query message Slave Function...
Page 656
Communication operation and setting Parameter ● Read holding register access log (H46 or 70) A response can be made to a query made by the function code H03, H06 or H0F. The starting address of the holding registers that succeeded in access during previous communication and the number of successful registers are returned.
Page 657
NOTES An error will occur if all accessed holding registers do not exist. Data read from a non-existing holding register is 0, and data written there is invalid. FR-A700 EC 6 - 477...
Page 658
Communication operation and setting Parameter To detect the mistakes of message data from the master, they are checked for the following errors. If an error is detected, an alarm stop will not occur. Error Item Error Definition Inverter Side Operation The data received by the inverter differs from Parity error the specified parity (Pr.
Page 659
For write, set the data as a control input instruction. For read, data is read as an inverter operating status. For write, set data as the operation mode setting. For read, data is read as the operation mode status. FR-A700 EC 6 - 479...
Page 660
Communication operation and setting Parameter Definition Control input instruction Inverter status Stop command RUN (inverter running) Forward rotation command Forward rotation Reverse rotation command Reverse rotation RH (high speed operation command) SU (up to frequency) RM (middle speed operation command) OL (overload) RL (low speed operation command) IPF (instantaneous power failure)
Page 661
Details of option output terminal monitor (output terminal status of FR-A7AY/A7AR)-all terminals are off when an option is not fitted — — — — — — The setting depends on capacities. (01800 or less / 02160 or more) FR-A700 EC 6 - 481...
Page 662
Communication operation and setting Parameter ● Parameter Parameter Register Parameter Name Read/write Remarks Refer to the parameter list The parameter number + 41000– 0–999 (Tab. 6-1) for the parameter Read/write 41999 41000 is the register number. names. Terminal 2 frequency setting bias C2 (902) 41902 Read/write...
Page 663
(torque/magnetic flux) (933) is read. C41 (933) Terminal 4 gain Analog value (%) of the cur- 43933 (torque/magnetic flux) Read rent (voltage) applied to termi- (terminal analog value) nal 4 is read. Tab. 6-164: Parameter (2) FR-A700 EC 6 - 483...
Communication operation and setting Parameter ● Alarm history Register Definition Read/write Remarks 40501 Alarm history 1 Read/write 40502 Alarm history 2 Read 40503 Alarm history 3 Read Being 2 bytes in length, the data is stored as "H00 ". The error code can be referred to in the 40504 Alarm history 4 Read...
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Query Message 2 PLC (master) ⇓ Inverter (slave) Inverter (slave) ⇓ Data absence time Alarm (E.SER) PLC (master) (3.5 bytes or more) Pr. 539 Communication check counter Check start Time I001622E Fig. 6-233: Signal loss detection FR-A700 EC 6 - 485...
Pr. 506 to Pr. 515. Parameter 8 for user Parameter 9 for user Parameter 10 for user Refer to the FR-A700 PLC function programming manual for details of the PLC function. 6 - 486...
When using USB communication, set "3" in Pr. 551 "PU mode operation command source selection." You can perform parameter setting and monitoring with the FR Configurator. Refer to the instruction manual of the FR-Configurator for details. FR-A700 EC 6 - 487...
Special operation Parameter 6.24 Special operation Refer to Purpose Parameters that must be set Section Perform process control such as PID control Pr. 127–Pr. 134, 6.24.1 pump and air volume. Pr. 575–Pr. 577 Switch between the inverter opera- Commercial power supply inverter Pr.
Page 669
Set the upper limit value. If the feedback value exceeds the setting, the FUP signal 0–100% is output. The maximum input (20mA/ 9999 PID upper limit 5V/10V) of the measured value (terminal 4) is equivalent to 100%. 9999 No function FR-A700 EC 6 - 489...
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Pr. 129, Pr. 130, Pr. 133 and Pr. 134 can be set during operation. They can also be set independently of the operation mode. Refer to the FR-A700 PLC function programming manual for details of the PLC function. 6 - 490...
Page 671
A combination of P action (P) and I action (I) for providing a manipulated variable in response to deviation and changes with time. Fig. 6-237: Set point Deviation Operation example for stepped changes of Measured measured value value P action I action PI action I000045C FR-A700 EC 6 - 491...
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Special operation Parameter PD action A combination of P action (P) and differential control action (D) for providing a manipulated var- iable in response to deviation speed to improve the transient characteristic. Fig. 6-238: Set point Operation example for proportional changes of measured value Deviation Measured...
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Hot → fi increase X<0 – Deviation Feedback signal (measured value) I000048C Fig. 6-241: Cooling Relationships between deviation and manipulated variable (output frequency). Deviation Positive Negative Reverse action Forward action Tab. 6-168: Relationships between deviation and manipulated variable FR-A700 EC 6 - 493...
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Special operation Parameter Connection diagram The following graphic shows a typical application: Pr. 128 = 20 Pr. 183 = 14 Pr. 191 = 47 Pr. 192 = 16 Pr. 193 = 14 Pr. 194 = 15 Pump Power supply Forward rotation Reverse rotation PID control RT (X14)
Page 675
Commu- — nication Set value, Input the set value and measured Pr. 128 = 60, 61 measured value from LONWORKS , CC-Link value input communication Tab. 6-169: I/O signals and parameter settings (1) FR-A700 EC 6 - 495...
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Special operation Parameter Terminal Signal Function Description Parameter Setting used Upper limit Output to indicate that the meas- Pr. 128 = 20, 21, 60, 61 Pr. 131 ≠ 9999 output ured value signal exceeded the upper limit value (Pr. 131). Set "15"...
Page 677
At this time, the inverter running signal (RUN) is off and the PID control operating signal (PID) is on. Reverse action (Pr. 128 = 10) Deviation Cancel level Output frequency SLEEP period less than Pr. 575 Pr. 575 or more Time I001235E Fig. 6-244: Output interruption (SLEEP function) FR-A700 EC 6 - 497...
Page 678
Special operation Parameter PID monitor function The PID control set value, meaured value and deviation value can be output to the operation panel monitor display and terminal CA, AM. The deviation monitor can display a negative value on the assumption that 1000 is 0%. (The deviation monitor cannot be output from the terminal CA, AM.) For the monitors, set the following values to Pr.
Page 679
(Pr. 129) to a larger value, the proportional band (Pr. 129) an the inte- integral time (Pr. 130) to a slightly gral time (Pr. 130) may be decreased. longer time. Adjustment end Fig. 6-246: Calibration example FR-A700 EC 6 - 499...
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Special operation Parameter Set point input calibration Apply the input voltage of 0% set point setting (e.g. 0V) across terminals 2-5. Enter in C2 (Pr. 902) the frequency which should be output by the inverter at the deviation of 0% (e.g. 0Hz). In C3 (Pr.
Page 681
When PID control is selected, the minimum frequency is the frequency set in Pr. 902 and the maximum frequency is the frequency set in Pr. 903. (Pr. 1 "Maximum frequency" and Pr. 2 "Minimum frequency" settings are also valid.) The remote operation function is invalid during PID operation. FR-A700 EC 6 - 501...
Special operation Parameter 6.24.2 Commercial power supply-inverter switchover function (Pr. 57, Pr. 58, Pr. 135 to Pr. 139, Pr. 159) The complicated sequence circuit for commercial power supply-inverter switchover is built in the inverter. Hence, merely inputting the start, stop or automatic switchover selection signal facil- itates the interlock operation of the switchover magnetic contactor.
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Using the electronic bypass sequence function that outputs the timing signal for operation of the magnetic contactor, a complicated commercial power supply switch- over interlock can be provided by the inverter. NOTE Commercial operation can not be performed with the Mitsubishi vector motor (SF-V5RU). FR-A700 EC 6 - 503...
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Special operation Parameter Connecting the magnetic contactors to the inverter Parameter setting for source logic: Pr. 185 = 7, Pr. 192 = 17, Pr. 193 = 18, Pr. 194 = 19 External thermal relay Power supply (MC1) IPF Inverter start (forward rotation) Inverter/commercial power-supply switchover Operation interlock (MC2) OL...
Page 685
Control signal output of inverter input side magnetic contactor MC1 Control signal output of inverter output side magnetic contactor MC2 Control signal output of commercial power supply operation magnetic contactor MC3 Tab. 6-174: Output signals FR-A700 EC 6 - 505...
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Special operation Parameter Commercial power supply-inverter switchover operation sequence ● Operation sequence example when there is no automatic switchover sequence (Pr. 139 = 9999) Power supply Operation interlock ON: Operation enabled (MRS) OFF:Operation disabled Run command ON: Forward rotation (STF) OFF:Stop Inverter/commer- ON: Inverter operation...
Page 687
The switchover to commercial power supply operation is performed by a command or when the switchover frequency is reached. When the Stop command is applied the system switches to inverter operation and the motor is decelerated under control. FR-A700 EC 6 - 507...
Page 688
Special operation Parameter Signal ON/OFF after parameter setting Remarks Power External operation OFF → ON OFF → ON supply ON mode (PU opera- (OFF → ON) (OFF → ON) (OFF) (OFF) (OFF) (OFF) tion mode) (refer to note 2) At start OFF →...
12ms. A larger setting provides higher stability but poorer response. When Pr. 570 Multiple rating setting ≠ "2", performing all parameter clear and inverter reset changes the setting range. (Refer to section 6.7.5). FR-A700 EC 6 - 509...
Page 690
Special operation Parameter Mechanical brake MCCB Motor Power supply Start signal Load torque high-speed frequency I001624E Fig. 6-254: Connection diagram (source logic, Pr. 186 = 19) The used terminal changes according to the Pr. 180 to Pr. 189 (input terminal function selection) settings Load torque high speed frequency control setting ●...
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(RH, RM, RL signal ), 16 bit digital input option (FR-A7AX) CAUTION: When the load is light, the motor may suddenly accelerate to 120Hz maximum, causing hazard. Securely provide mechanical interlock on the machine side to perform. FR-A700 EC 6 - 511...
Special operation Parameter 6.24.4 Droop control (Pr. 286 to Pr. 288) Magnetic flux Magnetic flux Magnetic flux Sensorless Sensorless Sensorless Vector Vector Vector This function is designed to balance the load in proportion to the load torque to provide the speed drooping characteristic under advanced magnetic flux vector control, real sensorless vector control and vector control.
Page 693
(The frequency command is limited at 0Hz under real sesorless vector control.) Tab. 6-175: Setting of parameter 288 NOTE The maximum value of frequency after droop compensation is either 120Hz or Pr. 1 "Maxi- mum frequency", whichever is smaller. FR-A700 EC 6 - 513...
Special operation Parameter 6.24.5 Frequency setting by pulse train input (Pr. 291, Pr. 384 to Pr. 386) The inverter speed can be set by inputting pulse train from terminal JOG. Initial Setting Refer to Pr. No. Name Description Parameters referred to Section Value Range...
Page 695
NOTE When pulse train input is selected, a function assigned to terminal JOG using Pr. 185 "JOG terminal function selection" is made invalid. FR-A700 EC 6 - 515...
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Special operation Parameter Adjustment of pulse train input and frequency (Pr. 385, Pr. 386 ) Frequency for zero input pulse can be set using Pr. 385 "Frequency for zero input pulse" and fre- quency at maximum input pulse can be set using Pr. 386 "Frequency for maximum input pulse". Output frequency [Hz] Limit value 50Hz...
0–4096 pulses encoder before multiplied by four. When exercising vector control with the FR-A7AP, this parameter changes to excessive speed deviation detection frequency. The above parameters can be set when the FR-A7AP (option) is mounted. FR-A700 EC 6 - 517...
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Special operation Parameter Setting before the operation (Pr. 144, Pr. 359, Pr. 369) When performing encoder feedback control under V/f control, set the number of motor poles in Pr. 144 "Speed setting switchover" according to the motor used. Under advanced magnetic flux vector control, the Pr.
Page 699
For the motor with brake, use the RUN signal (inverter running) to open the brake. (The brake may not be opened if the FU (output frequency detection) signal is used.) Do not turn off the external power supply of the encoder during encoder feedback control. Encoder feedback control functions abnormally. FR-A700 EC 6 - 519...
Special operation Parameter 6.24.7 Traverse function (Pr. 592 to Pr. 597) Traverse operation which varies the amplitude of the frequency in a constant cycle can be per- formed. This function of the is designed specifically for use in yarn-winding applications in the textile industry.
Page 701
When the output frequency exceeds Pr. 1 "Maximum frequency" or Pr. 2 "Minimum fre- quency", the output frequency is clamped at maximum/minimum frequency while the set pat- tern exceeds the maximum/minimum frequency. Output frequency Clamped by Pr. 1 Clamped by Pr. 2 Time [s] FR-A700 EC 6 - 521...
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Special operation Parameter ≠ NOTE When the traverse function and S-pattern acceleration/deceleration (Pr. 29 0) are selected, S-pattern acceleration/deceleration is performed only in the areas where operation is per- formed in normal acceleration and deceleration time (Pr. 7, Pr. 8). For acceleration/deceler- ation during traverse operation, linear acceleration/deceleration is made.
When the load inertia of the motor is Regeneration avoid- 100% 0–200% large, decrease the Pr. 886 setting. ance frequency gain When vibration is not suppressed by decreasing the Pr. 886 setting, set a smaller value in Pr. 665. FR-A700 EC 6 - 523...
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Special operation Parameter What is regeneration avoidance function? (Pr. 882, Pr. 883) When the regeneration status is serious, the DC bus voltage rises and an over voltage alarm (E.OV ) may occur. When this bus voltage rise is detected and the bus voltage level reaches or exceeds Pr.
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(over voltage stall). Under vector control, unusual noise may be generated from the motor during deceleration when using regeneration avoidance function. To prevent this, make gain adjustment, e.g. by performing easy gain tuning. (Refer to section 6.3.3) FR-A700 EC 6 - 525...
Useful functions Parameter 6.25 Useful functions Refer to Purpose Parameters that must be set Section Increase cooling fan life Cooling fan operation selection Pr. 244 6.25.1 To determine the maintenance time Inverter part life display Pr. 255–Pr. 259 6.25.2 of parts. Maintenance output function Pr.
When the life alarm output level is reached, the bits are set as follows. Control circuit capacitor life Main circuit capacitor life Cooling fan life Inrush current limit circuit life I001261E Fig. 6-265: Bits of parameter 255 FR-A700 EC 6 - 527...
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Useful functions Parameter Pr. 255 Bits Inrush Current Main Circuit Control Circuit Cooling Fan Life (decimal) (binary) Limit Circuit Life Capacitor Life Capacitor Life ✔ ✔ ✔ ✔ 1111 ✔ ✔ ✔ 1110 — ✔ ✔ ✔ 1101 — ✔ ✔...
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¾ The start command is given while measuring. Operating environment: Ambient Temperature (annual average 40°C (free from corrosive gas, flammable gas, oil mist, dust and dirt)) Output current (80% of the rated current of Mitsubishi standard 4P motor) FR-A700 EC 6 - 529...
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Useful functions Parameter Cooling fan life display The cooling fan speed of 50% or less is detected and "FN" is displayed on the operation panel (FR-DU07) and parameter unit (FR-PU04/FR-PU07). As an alarm display, Pr. 255 bit 2 is turned on and also an alarm is output to the Y90 signal.
The cumulative energizing time is counted every hour. The energizing time of less than 1h is not counted. When terminal assignment is changed using Pr. 190 to Pr. 196 "Output terminal function selection", the other functions may be affected. Please make setting after confirming the function of each terminal. FR-A700 EC 6 - 531...
Useful functions Parameter 6.25.4 Current average value monitor signal (Pr. 555 to Pr. 557) The average value of the output current during constant speed operation and the maintenance timer value are output as a pulse to the current average value monitor signal (Y93). The pulse width output to the I/O module of the PLC or the like can be used as a guideline due to abrasion of machines and elongation of belt and for aged deterioration of devices to know the mainte- nance time.
Page 713
Setting of Pr. 556 "Data output mask time" The output current is unstable (transient state) right after the operation is changed from the acceleration/deceleration state to the constant speed operation. Set the time for not obtaining (mask) transient state data in Pr.556. FR-A700 EC 6 - 533...
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Useful functions Parameter Setting of the Pr. 555 "Current average time" The average output current is calculated during Hi output of start bit (1s). Set the time taken to average the current during start bit output in Pr. 555. Setting of Pr. 557 "Current average value monitor signal output reference current" Set the reference (100%) for outputting the signal of the current average value.
Page 715
(Pr.57 ≠ 9999) on completion of the data output mask. When terminal assignment is changed using Pr. 190 to Pr. 196 "Output terminal function selection", the other functions may be affected. Please make setting after confirming the function of each terminal. FR-A700 EC 6 - 535...
Useful functions Parameter 6.25.5 Free parameters (Pr. 888, Pr. 889) Parameters you can use for your own purposes. You can input any number within the setting range "0" to "9999". For example, the number can be used: ● As a unit number when multiple units are used. ●...
By using parameter 145 you can select the display language for the parameter unit FR-PU04 or FR-PU07. Initial Setting Refer to Pr. No. Name Description Parameters referred to Value Value Section Japanese — English German French PU display language selection Spanish Italian Swedish Finnish FR-A700 EC 6 - 537...
Setting for the parameter unit, operation panel Parameter 6.26.2 Operation panel frequency setting/key lock operation selection (Pr. 161) The setting dial of the operation panel (FR-DU07) can be used like a potentiometer to perform operation. The key operation of the operation panel can be disabled. Initial Setting Refer to...
List of alarm display Troubleshooting List of alarm display Refer to Operation Panel Indication Name Page HOLD Operation panel lock Er1 to Er4 Parameter write error Error message rE1 to rE4 Copy operation error Err. Error Stall Prevention (over current) Stall prevention (over voltage) Regenerative brake prealarm Electronic thermal relay function prealarm...
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Output current detection value exceeded 7-21 E.CDO Tab. 7-1: List of alarm display (2) If one of the errors "E.ILF, E.PTC, E.PE2, E.CDO" occurs when using the operation unit FR- PU04, "Fault 14" will be displayed. FR-A700 EC 7 - 3...
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List of alarm display Troubleshooting Refer to Operation Panel Indication Name Page Major failures Inrush resistor overheat 7-21 E.IOH Communication error (inverter) 7-21 E.SER Analog input error 7-21 E.AIE USB communication error 7-22 E.USB E.11 Opposite rotation deceleration error 7-22 Internal circuit error 7-22 E.13...
2) After stopping operation, make parameter setting. Operation Panel Indication Name Calibration error Description Analog input bias and gain calibration values are too close. Corrective action Check the settings of C3, C4, C6 and C7 (calibration functions). (Refer to section 6.20.5.) FR-A700 EC 7 - 5...
Page 724
Causes and corrective actions Troubleshooting Operation Panel Indication Name Mode designation error You attempted to make parameter setting in the NET operation mode when Pr. 77 is not Description "2". 1) Check that operation mode is "PU operation mode". Check point 2) Check the Pr.
Page 725
It is not a fault. 1) Turn off the RES signal. Corrective action 2) Check the connection of the PU and inverter. FR-A700 EC 7 - 7...
Page 726
Causes and corrective actions Troubleshooting Warnings When the protective function is activated, the output is not shut off. FR-PU04 Operation Panel Indication FR-PU07 Name Stall prevention (overcurrent) During When the output current (output torque during real sensorless vector con- acceleration trol or vector control) of the inverter exceeds the stall prevention operation level (Pr.
Page 727
The Pr. 503 "Maintenance timer" setting is larger than the Pr. 504 "Maintenance timer Check point alarm output set time" setting. (Refer to section 6.25.3.) Corrective action Setting "0" in Pr. 503 "Maintenance timer" erases the signal. FR-A700 EC 7 - 9...
Page 728
Causes and corrective actions Troubleshooting FR-PU04 — Operation Panel Indication FR-PU07 Name Parameter copy Appears when parameters are copied between models with capacities of 01800 or less and Description 02160 or more. Resetting of parameters 9, 30, 51, 52, 54, 56, 57, 70, 72, 80, 82, 90 to 94, 158, 455, 458 to Check point 462, 557, 859, 860 and 893 is necessary.
Page 729
1) Keep load stable.. 2) Check the wiring to avoid output short circuit. Corrective action 3) Check that stall prevention operation setting is correct. (Refer to section 6.7.4.) 4) Check RS-485 terminal connection. (under vector control) FR-A700 EC 7 - 11...
Page 730
Causes and corrective actions Troubleshooting FR-PU04 Operation Panel E.OC3 OC During Dec Indication FR-PU07 Name Over current shut-off during deceleration or stop When the inverter output current reaches or exceeds approximately 220% of the rated Description inverter current during deceleration (other than acceleration or constant speed), the protec- tive circuit is activated to stop the inverter output.
Page 731
3) Check that the cooling fan is stopped. (Check that FN is displayed on the operation panel.) 1) Set the ambient temperature to within the specifications. Corrective action 2) Clean the heatsink. 3) Replace the cooling fan. FR-A700 EC 7 - 13...
Page 732
Causes and corrective actions Troubleshooting FR-PU04 Operation Panel E.IPF Inst. Pwr. Loss Indication FR-PU07 Name Instantaneous power failure protection If a power failure occurs for longer than 15ms (this also applies to inverter input shut-off), the instantaneous power failure protective function is activated to stop the inverter output in order to prevent the control circuit from malfunctioning.
Page 733
Check the wiring (Check that the motor is normal.) Check point Check that the capacity of the motor used is not smaller than that of the inverter. Wire the cables properly. Corrective action Check the Pr. 251 "Output phase failure protection selection" setting. FR-A700 EC 7 - 15...
Page 734
Causes and corrective actions Troubleshooting FR-PU04 Operation Panel E.OHT OH Fault Indication FR-PU07 Name External thermal relay operation If the external thermal relay provided for motor overheat protection, or the internally Description mounted temperature relay in the motor, etc. switches on (contacts open), the inverter out- put is stopped.
Page 735
Please contact your sales representative. When performing parameter write frequently for communication purposes, set "1" in Pr. 342 Corrective action to enable RAM write. Note that powering off returns the inverter to the status before RAM write. FR-A700 EC 7 - 17...
Page 736
Causes and corrective actions Troubleshooting FR-PU04 Fault 14 Operation Panel E.PE2 Indication FR-PU07 PR storage alarm Name Parameter storage device alarm (main circuit board) Description A fault occurred in parameters stored (E²PROM failure). Check point — Corrective action Please contact your sales representative. FR-PU04 Operation Panel E.PUE...
Page 737
Set Pr. 285 "Excessive speed deviation detection frequency" and Pr. 853 "Speed devia- tion time" correctly. Corrective action Keep load stable. Set the correct number of encoder pulses in Pr. 369 "Number of encoder pulses". FR-A700 EC 7 - 19...
Page 738
Causes and corrective actions Troubleshooting FR-PU04 Operation Panel E.ECT E.ECT Indication FR-PU07 Name Signal loss detection Stops the inverter output when the encoder signal is shut off under orientation control, Description encoder feedback control or vector control. Check for the encoder signal loss. Check that the encoder specifications are correct.
Page 739
Check the setting of Pr. 73 "Analog input selection" and Pr. 267 "Terminal 4 input selec- Check point tion". Either give a frequency command by current input or set Pr. 73 "Analog input selection" or Corrective action Pr. 267 "Terminal 4 input selection" to voltage input. (Refer to section 6.20.2.) FR-A700 EC 7 - 21...
Page 740
Causes and corrective actions Troubleshooting FR-PU04 Fault 14 Operation Panel E.USB Indication FR-PU07 USB comm error Name USB communication error When the time set in Pr. 548 "USB communication check time interval" has broken, this Description function stops the inverter output. Check the USB communication cable.
For the 02160 or more, you can set Pr. 75 to disable reset operation until the thermal cumu- lative amount reaches 0 when a thermal trip (THM, THT) or an overcurrent trip (OC1 to OC3) occurs consecutively twice. FR-A700 EC 7 - 23...
LED display Troubleshooting LED display There are the following correspondences between the actual alphanumeric characters and the digital characters displayed on the operation panel. I000299C Fig. 7-4: Correspondences between digital and actual characters (FR-DU07) 7 - 24...
(The number of past alarms is displayed.) Press digital dial. Flickering Press digital dial. Flickering Press digital dial. I001298E Fig. 7-5: Displaying the alarm list and the status values for the time of the alarm FR-A700 EC 7 - 25...
Page 744
Check and clear of the alarm history Troubleshooting Clearing procedure The alarm history can be cleared by setting "1" in Er.CL "Alarm history clear". (The alarm history is not cleared when "1" is set in Pr. 77 "Parameter write selection".) Operation Display Screen at powering on...
Set "1" in Pr. 359 if "REV" on the operation panel is on when the forward command is given. ● Inspection of load. – Check that the load is not too heavy. – Check that the shaft is not locked. FR-A700 EC 7 - 27...
Check first when you have troubles Troubleshooting 7.6.2 Motor generates abnormal noise ● No carrier frequency noises (metallic noises) are generated. – Soft-PWM operation to change the motor tone into an unoffending complex tone is factory-set to valid by the Pr. 72 "PWM frequency selection". Adjust Pr.
Pr. 74 "Input filter time constant" and Pr. 822 "Speed setting filter 1". – Check for a malfunction due to undesirable currents when the transistor output unit is connected. (Refer to page 3-25.) FR-A700 EC 7 - 29...
Check first when you have troubles Troubleshooting ● Others – Check that the settings of Pr. 80 "Motor capacity and Pr. 81 "Number of motor poles" are correct to the inverter capacity and motor capacity under advanced magnetic flux vector control, real sensorless vector control or vector control.
AM-5 and CA-5 terminal output function of the inverter. Inverter 3-phase To the motor power supply Moving-iron type Electro dynamometer type Moving-coil type Instrument types Rectifier type I001300E Fig. 7-7: Measurements at the main circuit FR-A700 EC 7 - 31...
Meters and measuring methods Troubleshooting 7.7.1 Measurement of powers Using an electro-dynamometer type meter, measure the power in both the input and output sides of the inverter using the two- or three-wattmeter method. As the current is liable to be im- balanced especially in the input side, it is recommended to use the three-wattmeter method.
Clamp meter Clamp-on wattmeter current measurement Clamp-on wattmeter Clamp meter current measurement Example of measuring inverter input current Example of measuring inverter output current I001303E, I001304E, Fig. 7-9: Differences when measuring currents with different instruments FR-A700 EC 7 - 33...
Meters and measuring methods Troubleshooting 7.7.4 Use of CT and transducer A CT may be used in both the input and output sides of the inverter, but the one used should have the largest possible VA ability because an error will increase if the frequency gets lower. When using a transducer, use the effective value calculation type which is immune to har- monics.
Tighten them according to the specified tighten- ing torque. (Refer to page 3-12.) ● Check the conductors and insulating materials for corrosion and damage. ● Measure insulation resistance. ● Check and change the cooling fan and relay. FR-A700 EC 8 - 1...
Inspection Maintenance and inspection 8.1.3 Daily and periodic inspection Interval Inspection Inspection Method / Corrective Action Item Item Surrounding Check the ambient temperature, humidity, dirt, ✔ Improve environment environment corrosive gas, oil mist , etc. ✔ Overall unit Check for unusual vibration and noise. Check alarm location and retighten Power supply ✔...
Page 755
It is recommended to install a device to monitor voltage for checking the power supply voltage to the inverter. One to two years of periodic inspection cycle is recommended. However, it differs according to the installation environment. Consult us for periodic inspection. FR-A700 EC 8 - 3...
Inspection Maintenance and inspection 8.1.4 Display of the life of the inverter parts The self-diagnostic alarm is output when the life span of the control circuit capacitor, cooling fan, each parts of the inrush current limit circuit is near to give an indication of replacement time. For the life check of the main circuit capacitor, the alarm signal (Y90) will not be output if a measuring method of is not performed.
Page 757
After making sure that the power lamp is off, switch on the power supply again. Check that "3" (measuring completion) is set in Pr. 259, read Pr 258, and check the deterioration degree of the main circuit capacitor FR-A700 EC 8 - 5...
Page 758
Inspection Maintenance and inspection The life of the main circuit capacitor can not be measured in the following conditions: ³ The FR-HC, MT-HC, FR-CV, FR-BU, MT-BU5 or BU is connected. · Terminals R1/L11, S1/L21 or DC power supply is connected to the terminal P/+ and N/−. »...
Inspection Maintenance and inspection 8.1.6 Cleaning Always run the inverter in a clean status. When cleaning the inverter, gently wipe dirty areas with a soft cloth immersed in neutral detergent or ethanol. CAUTION: Do not use solvent, such as acetone, benzene, toluene and alcohol, as they will cause the inverter surface paint to peel off.
Page 761
05470 to 06830 9LB1424H5H03 07700, 08660 09620 to 12120 9LB1424S5H03 Tab. 8-6: Correspondence between inverters and cooling fans NOTE The inverters of the capacity classes 00023 to 00052 are not provided with a cooling fan. FR-A700 EC 8 - 9...
Page 762
Inspection Maintenance and inspection ● Removal of the fan (FR-A 740-00083 to 03610) Push the hooks of the fan cover from above. Remove the fan cover. 00083, 00126 00170 to 00620 00770 to 03610 I001306E Fig. 8-4: Removal of the fan cover Disconnect the fan connector.
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Fig. 8-7: Connection of the fan Reinstall the fan cover. Insert hooks into the holes . Insert hooks until you hear a click sound. 00083, 00126 00170 to 00620 00770 to 03610 I001309E Fig. 8-8: Reinstall the fan cover FR-A700 EC 8 - 11...
Page 764
Inspection Maintenance and inspection ● Removal of the fan (FR-A 740-04320 or more) Fan cover Fan connector 04320 or more Front cover 1 I001355aE Fig. 8-9: Removal of the fan NOTE The number of cooling fans differs according to the inverter capacity (refer to Tab. 8-6). ●...
Page 765
80% of the rating. Relays To prevent a contact fault, etc., relays must be replaced according to the cumulative number of switching times (switching life). FR-A700 EC 8 - 13...
Inspection Maintenance and inspection 8.1.8 Inverter replacement The inverter can be replaced with the control circuit wiring kept connected. Before replacement, remove the wiring cover of the inverter. WARNING: Before starting inverter replacement, switch power off, wait for at least 10 minutes, and then check the voltage with a tester and such to ensure safety.
NOTE For the continuity test of the control circuit, use a tester (high resistance range) and do not use the megger or buzzer. 8.2.2 Pressure test Do not conduct a pressure test. Deterioration may occur. FR-A700 EC 8 - 15...
Measurements on the main circuit Maintenance and inspection 8.2.3 Measurement of voltages and currents Since the voltages and currents on the inverter power supply and output sides include harmon- ics, measurement data depends on the instruments used and circuits measured. When instruments for commercial frequency are used for measurement, measure the following circuits with the instruments given on the next page.
Page 769
Calculate in similar manner to power supply side power factor. power factor × ------------------------------- - 100% × × Converter Across P/+-N/− Moving-coil type Inverter LED display is lit. 1.35 × V1 output (such as tester) Tab. 8-7: Measuring Points and Instruments (1) FR-A700 EC 8 - 17...
Page 770
Measurements on the main circuit Maintenance and inspection Measuring Item Measuring Point Remarks (Reference Measurement Value) Instrument Frequency Across 2, 4 (positive) Moving-coil type 0–10 V DC, 4–20 mA "5" is setting signal and 5 (Tester and such common may be used) Across 1 (positive) 0–±5 V DC, 0–±10 V DC (Internal resist-...
The maximum output voltage does not exceed the power supply voltage. The maximum output voltage can be changed within the setting range. However, the pulse voltage value of the inverter output side voltage remains unchanged at about √2 that of the power supply. FR-A700 EC A - 1...
Page 772
Specifications FR-A 740-00023 to -01160 Appendix With the optional dedicated external brake resistor FR-ABR-H (option), the 00023 to 00250 and 00310 to 00620 will achieve the performance of 100 % torque/10 % ED and 100 % torque / 6 % ED respectively. The power supply capacity varies with the value of the power supply side inverter impedance (including those of the input reactor and cables).
√2 that of the power supply. The power supply capacity varies with the value of the power supply side inverter impedance (including those of the input reactor and cables). FR-DU07: IP40 (except for the PU connector) FR-A700 EC A - 3...
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Specifications FR-A 740-01800 to -12120 Appendix A - 4...
PID control, computer link operation (RS-485), motor end orientation , machine end orientation , pre-excitation, notch filter, machine analyzer , easy gain tuning, speed feed forward, and torque bias Tab. A-3: Common specifications FR-A700 EC A - 5...
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Common specifications Appendix FR-A 740 Specification You can select any signals using Pr. 190 to Pr. 196 (output terminal function selection) from among inverter running, up-to-frequency, instantaneous power failure/undervoltage, overload warning, output frequency (speed) detection, second output frequency (speed) detection, third output frequency (speed) detection, regenerative brake prealarm, electronic thermal relay function pre-alarm, PU operation mode, inverter operation ready, output current detection, zero current detection, PID lower limit, PID upper limit, PID forward rotation reverse rotation output, electronic...
Outline dimension drawings Outline dimension drawings A.4.1 FR-A 740-00023 to -00126 2–Ø6 All dimensions in mm i001314E Fig. A-1: Dimensions FR-A 740-00023 to -00126 The FR-A740-00023 to 00052 are not provided with a cooling fan. FR-A700 EC A - 7...
Appendix Outline dimension drawings A.4.3 FR-A 740-00470 and -00620 2–Ø10 All dimensions in mm i001632E Fig. A-3: Dimensions FR-A 740-00470 and -00620 FR-A700 EC A - 9...
Outline dimension drawings Appendix A.4.4 FR-A 740-00770 to -01160 2–Ød All dimensions in mm Inverter FR-A 740-00770 FR-A 740-00930/-01160 i001317E Fig. A-4: Dimensions FR-A 740-00770 to -01160 A - 10...
Outline dimension drawings Appendix A.4.6 FR-A 740-02160 and -02600 2–Ø12 All dimensions in mm Inverter FR-A 740-02160/-02600 I001384W Fig. A-6: Dimensions of FR-A 740-02160 and FR-A 740-02600 A - 12...
Appendix Outline dimension drawings A.4.7 FR-A 740-03250 and -3610 2–Ø12 All dimensions in mm All di I001633E Fig. A-7: Dimensions of FR-A 740-03250 and -03610 FR-A700 EC A - 13...
Outline dimension drawings Appendix A.4.8 FR-A 740-04320 and -04810 3–Ø12 All dimensions in mm I001634E Fig. A-8: Dimensions of FR-A 740-04320 and -04810 A - 14...
Appendix Outline dimension drawings A.4.9 FR-A 740-05470, -06100 and -06830 3–Ø12 All dimensions in mm I001635E Fig. A-9: Dimensions of FR-A 740-05470, FR-A 740-006100 and FR-A 740-06830 FR-A700 EC A - 15...
Outline dimension drawings Appendix A.4.10 FR-A 740-07700 and -08660 3–Ø12 All dimensions in mm I001636E Fig. A-10: Dimensions of FR-A 740-07700 and FR-A 740-08660 A - 16...
Appendix Outline dimension drawings A.4.11 FR-A 740-09620, -10940 and -12120 4–Ø12 All dimensions in mm I001637E Fig. A-11: Dimensions of FR-A 740-09620, FR-A 740-10940 and FR-A 740-12120 FR-A700 EC A - 17...
Outline dimension drawings Appendix A.4.12 DC reactors FR-HEL-H90K Rating plate 2 terminals (for Ø M12 bolt) 4 installation holes < D (for M6 screw) Earth (ground) terminal (for M6 screw) All dimensions in mm Weight Inverter DC reactor Type [kg] FR-A 740-01800 FR-HEL-H90K i001388E...
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Earth (ground) terminal (for S1 screw) All dimensions in mm Weight Inverter DC reactor Type [kg] FR-A 740-02160 FR-HEL-H110K FR-A 740-02600 FR-HEL-H132K FR-A 740-03250 FR-HEL-H160K FR-A 740-03610 FR-HEL-H185K i001389E Fig. A-13: DC reactors FR-HEL-H110K to -H185K FR-A700 EC A - 19...
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Outline dimension drawings Appendix FR-HEL-H220K to -H355K Rating plate 2-S2 eye nut 2 terminals (for Ø bolt) 4 installation holes (for S screw) < D Earth (ground) terminal (for S1 screw) All dimensions in mm Weight Inverter DC reactor Type Ø...
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(for M8 screw) All dimensions in mm Inverter DC reactor Type Weight [kg] FR-A 740-07700 FR-HEL-H400K FR-A 740-08660 FR-HEL-H450K i001391C Fig. A-15: DC reactors FR-HEL-H400K and -H450K Remove the eye nut after installation of the product. FR-A700 EC A - 21...
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Outline dimension drawings Appendix FR-HEL-H500K to -H630K Rating plate 2 terminals 4-Ø15 Earth (ground) terminal (for M12 screw) 2-M12 eye nut 4 installation holes (for M10 screw) All dimensions in mm Inverter DC reactor Type Weight [kg] FR-A 740-09620 FR-HEL-H500K FR-A 740-10940 FR-HEL-H560K FR-A 740-12120...
Cut the panel of the enclosure according to the inverter capacity. 6-M10 Screw 6-M10 Screw 05470 to 06830 04320, 04810 6-M10 Screw 6-M10 Screw 07700, 08660 09620 to 12120 I001357E, I001358E, I001359E, I001380E Fig. A-17: Panel cutting FR-A700 EC A - 23...
Outline dimension drawings Appendix A.4.14 Operation panel FR-DU07 Panel Cable 2–M3 FR-ADP (Option) All dimensions in mm i001320e Fig. A-18: Operation panel FR-DU07 A.4.15 Operation panel FR-PU07 Panel cutting 4–Ø4 All dimensions in mm I001638E Abb. A-19: Parameter unit FR-PU07 NOTES When installing the FR-PU07 on the enclosure, etc., remove screws for fixing the FR-PU07 to the inverter or fix the screws to the FR-PU07 with M3 nuts.
Appendix Outline dimension drawings A.4.16 Parameter unit FR-PU04 16,5 23,75 10,5 11,75 ∅ 1,25 5 x M3 3,75 All dimensions in mm Fig 27 Fig. A-20: Parameter unit FR-PU04 FR-A700 EC A - 25...
Parameter list with instruction codes Appendix Parameter list with instruction codes In the initial setting, only the simple mode parameters are displayed. Set Pr. 160 "User group read selection" as required. Initial Setting Parameter Name Remarks Value Range Only the simple mode parameters can be 9999 displayed.
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✔ ✔ Frequency jump 3A — ✔ ✔ ✔ ✔ ✔ ✔ Frequency jump 3B — ✔ ✔ ✔ ✔ ✔ ✔ ✔ — Speed display 6-318 Tab. A-5: Parameter list with instruction codes (2) FR-A700 EC A - 27...
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Parameter list with instruction codes Appendix Instruction Control Mode-based Correspondence Table Code Advan- Real sensorless Vector control Para- Refer Customer ced ma- vector control Function Name meter to Page Setting V/f Con- gnetic trol flux Positi- Speed Torque Speed Torque vector control Up-to-frequency...
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✔ ✔ — 6-236 selection Auto tuning setting/ ✔ ✔ ✔ ✔ ✔ ✔ — 6-222 status Tab. A-5: Parameter list with instruction codes (4) Can be written by only communication from the PU connector. FR-A700 EC A - 29...
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Parameter list with instruction codes Appendix Instruction Control Mode-based Correspondence Table Code Advan- Real sensorless Vector control Para- Refer Customer ced ma- vector control Function Name meter to Page Setting V/f Con- gnetic trol flux Positi- Speed Torque Speed Torque vector control ✔...
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6-312 Zero current detection ✔ ✔ ✔ ✔ ✔ ✔ ✔ level Zero current detection ✔ ✔ ✔ ✔ ✔ ✔ ✔ time Tab. A-5: Parameter list with instruction codes (6) FR-A700 EC A - 31...
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Parameter list with instruction codes Appendix Instruction Control Mode-based Correspondence Table Code Advan- Real sensorless Vector control Para- Refer Customer ced ma- vector control Function Name meter to Page Setting V/f Con- gnetic trol flux Positi- Speed Torque Speed Torque vector control Voltage reduction...
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Parameter list with instruction codes Appendix Instruction Control Mode-based Correspondence Table Code Advan- Real sensorless Vector control Para- Refer Customer ced ma- vector control Function Name meter to Page Setting V/f Con- gnetic trol flux Positi- Speed Torque Speed Torque vector control ✔...
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UV avoidance voltage ✔ ✔ ✔ ✔ ✔ ✔ — — 6-346 gain Rotation direction ✔ ✔ ✔ — detection selection at — — — — 6-337 restarting Tab. A-5: Parameter list with instruction codes (10) FR-A700 EC A - 35...
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Parameter list with instruction codes Appendix Instruction Control Mode-based Correspondence Table Code Advan- Real sensorless Vector control Para- Refer Customer ced ma- vector control Function Name meter to Page Setting V/f Con- gnetic trol flux Positi- Speed Torque Speed Torque vector control ✔...
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Parameter list with instruction codes Appendix Instruction Control Mode-based Correspondence Table Code Advan- Real sensorless Vector control Para- Refer Customer ced ma- vector control Function Name meter to Page Setting gnetic Control flux Positi- Speed Torque Speed Torque vector control Parameter for com- munica-...
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— — — — 6-141 Position feed forward ✔ — — — — — — 6-141 gain Tab. A-5: Parameter list with instruction codes (14) Setting can be made only when the FR-A7AP is mounted. FR-A700 EC A - 39...
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Parameter list with instruction codes Appendix Instruction Control Mode-based Correspondence Table Code Advan- Real sensorless Vector control Para- Refer Customer ced ma- vector control Function Name meter to Page Setting V/f Con- gnetic trol flux Positi- Speed Torque Speed Torque vector control Position command...
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— 6-131 digits position feed upper 4 ✔ — — — — — — 6-131 amount digits Tab. A-5: Parameter list with instruction codes (16) Setting can be made only when the FR-A7AP is mounted. FR-A700 EC A - 41...
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Parameter list with instruction codes Appendix Instruction Control Mode-based Correspondence Table Code Advan- Real sensorless Vector control Para- Refer Customer ced ma- vector control Function Name meter to Page Setting V/f Con- gnetic trol flux Positi- Speed Torque Speed Torque vector control Thir-...
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4mA input check ✔ ✔ ✔ ✔ ✔ ✔ — — 6-371 selection Second motor online ✔ ✔ ✔ — — — — — 6-236 auto tuning Tab. A-5: Parameter list with instruction codes (18) FR-A700 EC A - 43...
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Parameter list with instruction codes Appendix Instruction Control Mode-based Correspondence Table Code Advan- Real sensorless Vector control Para- Refer Customer ced ma- vector control Function Name meter to Page Setting V/f Con- gnetic trol flux Positi- Speed Torque Speed Torque vector control Output interruption...
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Torque setting filter 2 — — 6-380 Torque detection ✔ ✔ ✔ ✔ ✔ — — 6-144 filter 2 Tab. A-5: Parameter list with instruction codes (20) Setting can be made only when the FR-A7AP is mounted. FR-A700 EC A - 45...
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Parameter list with instruction codes Appendix Instruction Control Mode-based Correspondence Table Code Advan- Real sensorless Vector control Para- Refer Customer ced ma- vector control Function Name meter to Page Setting V/f Con- gnetic trol flux Positi- Speed Torque Speed Torque vector control ✔...
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Power saving cumula- ✔ ✔ ✔ ✔ ✔ ✔ ✔ 6-360 tive monitor clear Operation time rate ✔ ✔ ✔ ✔ ✔ ✔ ✔ 6-360 (estimated value) Tab. A-5: Parameter list with instruction codes (22) FR-A700 EC A - 47...
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Parameter list with instruction codes Appendix Instruction Control Mode-based Correspondence Table Code Advan- Real sensorless Vector control Para- Refer Customer ced ma- vector control Function Name meter to Page Setting V/f Con- gnetic trol flux Positi- Speed Torque Speed Torque vector control CA terminal...
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✔ ✔ ✔ ✔ ✔ ✔ ✔ 5A DA PU buzzer control 6-538 PU contrast ✔ ✔ ✔ ✔ ✔ ✔ ✔ 991 5B DB 6-538 adjustment Tab. A-5: Parameter list with instruction codes (24) FR-A700 EC A - 49...
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Parameter list with instruction codes Appendix A - 50...