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

Frequency inverter
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Table of Contents
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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  Also See for Mitsubishi Electric FR-A700

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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 dow