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Mitsubishi Electric FR-A700 Instruction Manual
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Mitsubishi Electric FR-A700 Instruction Manual

Frequency inverter
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MITSUBISHI ELECTRIC
FR-A700
Frequency Inverter

Instruction Manual

FR-A740 EC
Art. No: 207935
INDUSTRIAL AUTOMATION
17 11 2009
MITSUBISHI ELECTRIC
Version B

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Summary of Contents for Mitsubishi Electric FR-A700

  • 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 wir