Page 1: Instruction Manual
MITSUBISHI ELECTRIC FR-A700 Frequency Inverter Instruction Manual FR-A740 EC Art. No: 207935 INDUSTRIAL AUTOMATION 17 11 2009 MITSUBISHI ELECTRIC Version B...
Page 3 Instruction Manual Inverter FR-A700 EC Art. no.: 207935 Version Changes / Additions / Corrections 11/2008 pdp-gb First Edition 11/2009 pdp-gb General: Various Corrections 09/2010 Page 3-47: Thermal Relay Type Name...
Page 5: Safety Instructions
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.
Page 6 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.
Page 7 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...
Page 8 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.
Page 9 ● 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...
Page 10 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.
Page 11: Table Of Contents
Wiring instructions ........3-29 Connecting the operation panel using a connection cable ....3-30 FR-A700 EC...
Page 12 Contents RS-485 terminal block ......... . .3-31 3.6.1 Communication operation .
Page 13 (at 20mA) ........5-60 FR-A700 EC...
Page 14 Contents Parameter Parameter overview ..........6-1 Control mode .
Page 15 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...
Page 16 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.
Page 17 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...
Page 18 Contents 6.23 Communication operation and setting ......6-437 6.23.1 PU connector ......... .6-437 6.23.2 RS-485 terminals .
Page 19 Measurement of converter output voltage (across terminals P/+ and N/–) ......7-34 FR-A700 EC...
Page 20 Contents Maintenance and inspection Inspection ............8-1 8.1.1 Daily inspection .
Page 21: Product Checking And Part Identification
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...
Page 22: Description Of The Case
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...
Page 23: Accessory
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...
Page 24 Description of the Case Product Checking and Part Identification 1 - 4...
Page 25: Installation
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...
Page 26: Removal And Reinstallation Of The Front Cover
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.
Page 27: Fr-A740-00770 To 12120-Ec
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...
Page 28 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.
Page 29: Mounting
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...
Page 30: Enclosure Design
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.
Page 31 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...
Page 32 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).
Page 33 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...
Page 34: Inverter Placement
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...
Page 35 (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...
Page 36: Heatsink Protrusion Attachment (Fr-A7Cn)
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).
Page 37 ● 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...
Page 38 Enclosure design Installation 2 - 14...
Page 39: Wiring
(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...
Page 40 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...
Page 41: Peripheral Devices
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...
Page 42 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.
Page 43: Terminal Connection Diagram
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...
Page 44 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.
Page 45: Main Circuit Connection
● 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...
Page 46: Terminal Layout And Wiring
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...
Page 47 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...
Page 48 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...
Page 49 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...
Page 50 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.
Page 51 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...
Page 52 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.
Page 53 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...
Page 54: Separate Power Supply For The Control Circuit
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.
Page 55 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...
Page 56 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: ●...
Page 57: Control Circuit Specifications
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...
Page 58 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.
Page 59 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...
Page 60 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.
Page 61 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...
Page 62: Changing The Control Logic
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...
Page 63 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...
Page 64 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.
Page 65: Control Circuit Terminals
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...
Page 66 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).
Page 67: Wiring Instructions
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...
Page 68: Connecting The Operation Panel Using A Connection Cable
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.
Page 69: Rs-485 Terminal Block
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...
Page 70: Communication Operation
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.
Page 71: Usb Communication Specification
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...
Page 72: Connection Of Motor With Encoder (Vector Control)
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 ●...
Page 73 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...
Page 74 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-...
Page 75 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...
Page 76 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...
Page 77 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...
Page 78 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...
Page 79 (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...
Page 80 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.
Page 81: Connection Of Stand-Alone Option Units
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...
Page 82 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...
Page 83: Connection Of The Dedicated External Brake Resistor (Fr-Abr)
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...
Page 84 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...
Page 85 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...
Page 86: Connection Of A Brake Unit
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 ≤...
Page 87 ● 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...
Page 88 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.
Page 89: Connection Of The High Power Factor Converter (Fr-Hc, Mt-Hc)
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...
Page 90 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.
Page 91: Connection Of The Power Regeneration Common Converter Fr-Cv
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...
Page 92: Connection Of Power Regeneration Converter (Mt-Rc)
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.
Page 93: Connection Of The Power Improving Dc Reactor Fr-Hel
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...
Page 94: Electromagnetic Compatibility (Emc)
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.
Page 95 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...
Page 96 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).
Page 97 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...
Page 98 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.
Page 99: Inverter-Generated Noises And Their Reduction Techniques
– 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...
Page 100 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 ...
Page 101 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...
Page 102: Emc Filter
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).
Page 103: Power Supply Harmonics
For power factor improvement, install a reactor on the inverter input side or in the DC circuit. FR-A700 EC 3 - 65...
Page 104: Inverter-Driven 400V Class Motor
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.
Page 105: Operation
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.
Page 106 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.
Page 107: Drive The Motor
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...
Page 108: Operation Panel Fr-Du07
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)
Page 109 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...
Page 110: Basic Operation (Factory Setting)
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...
Page 111: Operation Lock
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...
Page 112 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.
Page 113: Monitoring Of Output Current And Output Voltage
(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...
Page 114: Change The Parameter Setting Value
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...
Page 115: Parameter Clear
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...
Page 116: All Parameter Clear
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.) ●...
Page 117: Parameter Copy An Parameter Verification
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.
Page 118: 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.
Page 119 ● "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".
Page 120: Parameter Verification
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...
Page 121: Basic Settings
(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...
Page 122 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.
Page 123: Overheat Protection Of The Motor 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...
Page 124 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.
Page 125: When The Rated Motor Frequency Is 60Hz (Pr. 3)
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...
Page 126: Increase The Starting Torque (Pr. 0)
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...
Page 127 (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...
Page 128: Limit The Maximum And Minimum Output Frequency (Pr. 1, Pr. 2)
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...
Page 129 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...
Page 130: Change The Acceleration/Deceleration Time (Pr. 7, Pr. 8)
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.
Page 131 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...
Page 132: Operation Mode (Pr. 79)
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.
Page 133: Large Starting Torque And Low Speed Torque Are Necessary (Advanced Magnetic Flux Vector Control, Real Sensorless Vector Control)
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...
Page 134 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. ●...
Page 135 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...
Page 136 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".
Page 137 ● 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...
Page 138: Higher Accuracy Operation Using A Motor With Encoder (Vector Control) (Pr. 9, Pr. 71, Pr. 80, Pr. 81, Pr. 359, Pr. 369, Pr. 800)
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.
Page 139 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...
Page 142 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.
Page 143 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...
Page 144: To Exhibit The Best Performance Of The Motor Performance (Offline Auto Tuning) (Pr. 9, Pr. 71, Pr. 83, Pr. 84, Pr. 96)
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.
Page 145 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...
Page 146 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...
Page 149 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...
Page 150: High Accuracy Operation Unaffected By The Motor Temperature
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.
Page 151 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...
Page 152: To Perform High Accuracy / Fast Response Operation (Gain Adjustment Of Real Sensorless Vector Control) (Pr. 818 To Pr. 821, Pr. 880)
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.
Page 159 (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...
Page 160: Pu Operation Mode
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.) ●...
Page 161: Set The Set Frequency To Operate
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...
Page 162: Use The Digital Dial Like A Potentiometer To Perform Operation
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...
Page 163: Use Switches To Give The Frequency Command (Multi-Speed Setting)
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...
Page 164 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.
Page 165: Perform Frequency Setting By Analog Voltage Input
● 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...
Page 166 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.
Page 167: Perform Frequency Setting By Analog Current Input
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.
Page 169: External Operation
● 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.
Page 171: Use Switches To Give A Start Command And A Frequency Command (Multi-Speed Setting) (Pr. 4 To Pr. 6)
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...
Page 174: Perform Frequency Setting By Analog Voltage Input
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. –...
Page 177: Change The Frequency (50Hz) Of The Maximum Value Of Potentiometer (At 5V)
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...
Page 178: Perform Frequency Setting By Analog Current Input
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...
Page 180: Change The Frequency (50Hz) Of The Maximum Value Of Potentiometer (At 20Ma)
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.
Page 181: Parameter
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...
Page 207 ✔ ✔ 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.
Page 221 * 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...
Page 228 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- ✔...
Page 229 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...
Page 230 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...
Page 231 4 digits Ninth position feed ✔ ✔ ✔ 0–9999 amount lower 4 digits Speed 9 REX, RL (Pr. 233) Ninth position feed ✔ ✔ ✔ 0–9999 amount upper 4 digits Tab. 6-1: Parameter overview (51) FR-A700 EC 6 - 51...
Page 232 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.
Page 233 ✔ ✔ 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...
Page 234 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)
Page 235 (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...
Page 236 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 —...
Page 237 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...
Page 238 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 ✔ ✔ ✔...
Page 239 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...
Page 240 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...
Page 241 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...
Page 242 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 —...
Page 243 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...
Page 244 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- ✔...
Page 245: Control Mode
– 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...
Page 246: What Is Vector Control
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...
Page 247 ● 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...
Page 248 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...
Page 249 (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...
Page 250: Change The Control Method (Pr. 80, Pr. 81, Pr. 451, Pr. 800)
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.
Page 251 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...
Page 252 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).
Page 253 Regenerative torque limit (Pr. 810 = 1) — — Torque limit (Pr. 810 = 1) Torque limit (Pr. 810 = 1) — — Torque bias — 9999 — — Tab. 6-5: Terminal 1 function when Pr. 800 = 4 FR-A700 EC 6 - 73...
Page 254 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) — —...
Page 255 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...
Page 256: Speed Control By Real Sensorless Vector Control, Vector Control
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...
Page 257: Selection Method Of Real Sensorless Vector Control (Speed Control)
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...
Page 258 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.
Page 259 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...
Page 260: Torque Limit Level Setting For Speed Control (Pr. 22, Pr. 803, Pr. 810 To Pr. 817, Pr. 858, Pr. 868, Pr. 874)
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.
Page 261 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...
Page 262 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.
Page 263 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...
Page 264 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.
Page 265 (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...
Page 266 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...
Page 267 (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...
Page 268: To Perform High Accuracy/Fast Response Operation
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...
Page 269 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...
Page 270 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.
Page 271 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...
Page 272 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).
Page 273 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...
Page 274 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.
Page 275 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...
Page 276 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.
Page 277 (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...
Page 278 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.
Page 279: (Pr. 828, Pr. 877 To Pr. 881)
(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...
Page 280 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. ●...
Page 281 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...
Page 282: Torque Biases (Pr. 840 To Pr. 848)
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.
Page 283 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...
Page 284 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.
Page 285 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...
Page 286 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. ●...
Page 287: Prevent The Motor From Overrunning (Pr. 285, Pr. 853, Pr. 873)
(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...
Page 288 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.
Page 289: Notch Filter (Pr. 862, Pr. 863)
Frequency 25.0 24.4 23.8 23.3 22.7 22.2 21.7 21.3 20.8 20.4 Setting Frequency 20.0 19.6 19.2 18.9 18.5 18.2 17.9 17.5 17.2 16.9 Setting Frequency 16.7 Notch filter depth (Pr. 863) Setting Attenuation 14dB 40dB FR-A700 EC 6 - 109...
Page 290: Torque Control By Real Sensorless Vector Control, Vector Control
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...
Page 291 ● 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...
Page 292: Setting Procedure Of Vector Control (Torque Control)
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.
Page 293: Torque Control
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...
Page 294 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...
Page 295 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...
Page 296 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. ●...
Page 297: Speed Limit (Pr. 807 To Pr. 809)
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...
Page 298 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.) ●...
Page 299 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...
Page 300 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. ●...
Page 301: Activation Of Torque Control During Start And Stop Processes
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...
Page 302 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.
Page 303 (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...
Page 304: Gain Adjustment Of Torque Control (Pr. 824, Pr. 825, Pr. 834, Pr. 835)
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.
Page 305 (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...
Page 306 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)".
Page 307: Position Control By Vector Control
(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...
Page 308 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.
Page 309 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...
Page 310 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 ●...
Page 311: Conditional Position Feed Function By Contact Input (Pr. 419, Pr. 464 To Pr. 494)
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...
Page 312 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 ✔...
Page 313 (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...
Page 314: Position Control (Pr. 419, Pr. 428 To Pr. 430) By Inverter
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.
Page 315 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...
Page 316 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)
Page 317: Setting Of The Electronic Gear (Pr. 420, Pr. 421, Pr. 424)
: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...
Page 318 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).
Page 319 ● 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...
Page 320: Setting Of Positioning Adjustment Parameter (Pr. 426, Pr. 427)
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...
Page 321: Gain Adjustment Of Position Control (Pr. 422, Pr. 423, Pr. 425)
● 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...
Page 322 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.
Page 323: Trouble Shooting For When Position Control Is Not Exercised Normally
(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...
Page 324: Adjustment Of Real Sensorless Vector Control, Vector Control
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.
Page 325 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...
Page 326: Excitation Ratio
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...
Page 327: Adjust The Output Torque Of The Motor (Current)
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...
Page 328 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 [ % ]...
Page 329 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...
Page 330: Advanced Magnetic Flux Vector Control (Pr. 71, Pr. 80,
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.
Page 331 ● 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...
Page 332 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-...
Page 333 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:...
Page 334: Slip Compensation (Pr. 245 To Pr. 247)
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...
Page 335: Stall Prevention Operation
(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...
Page 336 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...
Page 337 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...
Page 338 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.
Page 339 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...
Page 340 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.
Page 341 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...
Page 342 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"...
Page 343 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...
Page 344 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...
Page 345 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...
Page 346: Multiple Rating (Sld = Super Light Duty, Ld = Light Duty, Nd = Normal Duty, Hd = Heavy Duty) (Pr. 570)
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.
Page 347 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...
Page 348: Limit The Output Frequency
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.
Page 349 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...
Page 350: Avoid Mechanical Resonance Points (Frequency Jump)
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...
Page 351 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...
Page 352: Set V/F Pattern
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.
Page 353 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...
Page 354 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.
Page 355: Load Pattern Selection (Pr. 14)
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...
Page 356 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%"...
Page 357 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...
Page 358: Elevator Mode (Automatic Acceleration/Deceleration) (Pr. 61, Pr. 64, Pr. 292)
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...
Page 359 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...
Page 360 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.
Page 361: Adjustable 5 Points V/F (Pr. 71, Pr. 100 Bis Pr. 109)
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...
Page 362 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"...
Page 363: Frequency Setting By External Terminals
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...
Page 364 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.
Page 365 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...
Page 366: Jog Operation (Pr. 15, Pr. 16)
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...
Page 367 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...
Page 368 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...
Page 369 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...
Page 370: Input Compensation Of Multi-Speed And Remote Setting (Pr. 28)
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.
Page 371: Remote Setting Function (Pr. 59)
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...
Page 372 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"...
Page 373 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...
Page 374 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.
Page 375: Acceleration And Deceleration
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...
Page 376 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.
Page 377 ● 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...
Page 378 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. ×...
Page 379: Starting Frequency And Start-Time Hold Function
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...
Page 380 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]...
Page 381: Acceleration And Deceleration Pattern (Pr. 29, Pr. 140 To Pr. 143, Pr. 380 To Pr. 383, Pr. 516 To Pr. 519)
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...
Page 382 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.
Page 383 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...
Page 384 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"...
Page 385 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...
Page 386 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.
Page 387 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...
Page 388: Shortest Acceleration/Deceleration (Automatic Acceleration/Deceleration)
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.
Page 389 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...
Page 390 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.
Page 391 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...
Page 392: Selection And Protection Of A Motor
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.
Page 393 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...
Page 394 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.
Page 395 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...
Page 396 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...
Page 398: Applied Motor (Pr. 71, Pr. 450)
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.
Page 399 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...
Page 400 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.
Page 401 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...
Page 402: Offline Auto Tuning
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...
Page 403 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...
Page 406 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...
Page 408 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...
Page 412 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 413 R2/S I001556E R1: Primary resistance R2: Secondary resistance l1: Primary leakage inductance l2: Secondary leakage inductance M: Excitation inductance S: Slip L1 = l1 + M: Primary inductance L2 = l2 + M: Secondary inductance FR-A700 EC 6 - 233...
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...
Page 416: Online Auto Tuning (Pr. 95, Pr. 574)
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...
Page 418 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.
Page 421: Motor Brake And Stop Operation
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...
Page 426 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.
Page 427: Selection Of A Regenerative Brake (Pr. 30, Pr. 70)
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...
Page 428 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...
Page 430 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...
Page 434 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.
Page 435: Stop Selection (Pr. 250)
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...
Page 436 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.
Page 437: Stop-On Contact Control Function
As set in Pr. 72 "PWM frequency 9999 selection". When Pr. 570 "Multiple rating setting ≠ “2”, performing all parameter clear and inver