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

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INVERTER
FR-A700
INSTRUCTION MANUAL (BASIC)
FR-A720-0.4K to 90K
FR-A740-0.4K to 500K
Thank you for choosing this Mitsubishi Inverter.
This Instruction Manual (basic) is intended for users who "just want to run the inverter".
If you are going to utilize functions and performance, refer to the Instruction Manual (applied) [IB-0600226ENG].
The Instruction Manual (applied) is separately available from where you purchased the inverter or your Mitsubishi
sales representative.
1
PRODUCT CHECKING AND PARTS IDENTIFICATION.............................. 1
2
INSTALLATION AND WIRING ...................................................................... 2
2.1
Peripheral devices.....................................................................................................3
2.2
Method of removal and reinstallation of the front cover............................................5
2.3
Installation of the inverter and instructions................................................................7
2.4
Wiring.........................................................................................................................8
2.5
Power-off and magnetic contactor (MC) .................................................................35
2.6
Precautions for use of the inverter ..........................................................................36
2.7
When using the high-duty brake resistor (FR-ABR) ...............................................37
3
DRIVE THE MOTOR .................................................................................... 38
3.1
Step of operation .....................................................................................................38
3.2
Operation panel (FR-DU07) ....................................................................................39
3.3
Before operation......................................................................................................48
3.4
Start/stop from the operation panel (PU operation mode)......................................73
3.5
Make a start and stop with terminals (external operation)......................................78
3.6
Parameter List .........................................................................................................85
4
TROUBLESHOOTING ............................................................................... 129
4.1
Reset method of protective function......................................................................129
4.2
List of alarm display...............................................................................................130
4.3
Causes and corrective actions ..............................................................................131
4.4
Correspondences between digital and actual characters.....................................143
4.5
Check and clear of the alarm history.....................................................................144
4.6
Check first when you have troubles ......................................................................146
5
PRECAUTIONS FOR MAINTENANCE AND INSPECTION ..................... 149
5.1
Inspection item ......................................................................................................149
6
SPECIFICATIONS ..................................................................................... 157
6.1
Rating ....................................................................................................................157
6.2
Common specifications .........................................................................................161
6.3
Outline dimension drawings ..................................................................................162
6.4
Heatsink protrusion attachment procedure...........................................................175
CONTENTS
700
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2
3
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  • Page 1 INVERTER FR-A700 INSTRUCTION MANUAL (BASIC) FR-A720-0.4K to 90K FR-A740-0.4K to 500K Thank you for choosing this Mitsubishi Inverter. This Instruction Manual (basic) is intended for users who "just want to run the inverter". If you are going to utilize functions and performance, refer to the Instruction Manual (applied) [IB-0600226ENG]. The Instruction Manual (applied) is separately available from where you purchased the inverter or your Mitsubishi sales representative.
  • Page 2 This instruction manual (basic) provides handling information and precautions for use of the equipment. Please forward this instruction manual (basic) to the end user. This section is specifically about safety matters CAUTION (2) Wiring Do not attempt to install, operate, maintain or inspect the inverter until you •...

  • Page 3: Table Of Contents

    — CONTENTS — PRODUCT CHECKING AND PARTS IDENTIFICATION INSTALLATION AND WIRING Peripheral devices ....................3 Method of removal and reinstallation of the front cover ......... 5 Installation of the inverter and instructions............. 7 Wiring........................8 2.4.1 Terminal connection diagram ....................8 2.4.2 EMC filter...........................
  • Page 4 3.3.9 Higher accuracy operation using a motor with encoder (Vector control) (Pr.71, Pr.80, Pr.81, Pr.359, Pr.369, Pr.800) ................58 3.3.10 To exhibit the best performance of the motor performance (offline auto tuning) (Pr. 71, Pr. 83, Pr. 84, Pr. 96) ....................
  • Page 5 Appendix 3 Instructions for Compliance with the European Directives ....... 182 <Abbreviations> DU: Operation panel (FR-DU07) PU: Operation panel(FR-DU07) and parameter unit (FR-PU04, FR-PU07) Inverter: Mitsubishi inverter FR-A700 series FR-A700: Mitsubishi inverter FR-A700 series Pr.: Parameter Number PU operation: Operation using the PU (FR-DU07/FR-PU04/FR-PU07).

  • Page 6: Product Checking And Parts Identification

    1 PRODUCT CHECKING AND PARTS IDENTIFICATION Unpack the inverter and check the capacity plate on the front cover and the rating plate on the inverter side face to ensure that the product agrees with your order and the inverter is intact. •...

  • Page 7: Installation And Wiring

    2 INSTALLATION AND WIRING (Refer to page 27) USB connector Three-phase AC power supply A personal computer and an inverter can Use within the permissible power supply be connected with a USB (Ver1. 1) cable. specifications of the inverter. (Refer to page 157) Inverter (FR-A700) Moulded case circuit breaker (MCCB) or The life of the inverter is influenced by...

  • Page 8: Peripheral Devices

    Peripheral devices 2.1 Peripheral devices Check the motor capacity of the inverter you purchased. Appropriate peripheral devices must be selected according to the capacity. Refer to the following list and prepare appropriate peripheral devices: 200V class Breaker Selection Input Side Magnetic Contactor *2,4 Motor Output Applicable Inverter Type...
  • Page 9 Peripheral devices 400V class Breaker Selection Input Side Magnetic Contactor *2,4 Motor Output Applicable Inverter Type Reactor connection Reactor connection (kW) without with without with FR-A740-0.4K 30AF 5A 30AF 5A S-N10 S-N10 0.75 FR-A740-0.75K 30AF 5A 30AF 5A S-N10 S-N10 FR-A740-1.5K 30AF 10A 30AF 10A...

  • Page 10: Method Of Removal And Reinstallation Of The

    Method of removal and reinstallation of the front cover 2.2 Method of removal and reinstallation of the front cover •Removal of the operation panel 1) Loosen the two screws on the operation panel. 2) Push the left and right hooks of the operation panel (These screws cannot be removed.) and pull the operation panel toward you to remove.
  • Page 11 Method of removal and reinstallation of the front cover FR-A720-30K or more, FR-A740-30K or more • Removal 1) Remove installation screws on 2) Loosen the installation 3) Pull the front cover 2 toward you to the front cover 1 to remove the screws of the front cover 2.

  • Page 12: Installation Of The Inverter And Instructions

    Installation of the inverter and instructions 2.3 Installation of the inverter and instructions • Installation of the Inverter Installation on the enclosure CAUTION 0.4K to 22K 30K or more ⋅ When encasing multiple inverters, install them in parallel as a cooling measure. ⋅...

  • Page 13: Wiring

    Wiring 2.4 Wiring 2.4.1 Terminal connection diagram Sink logic *1. DC reactor (FR-HEL) *7. A CN8 connector is provided with the 75K Brake unit Be sure to connect the DC reactor or more. Main circuit terminal (Option) supplied with the 75K or more. Control circuit terminal When a DC reactor is connected to *8.

  • Page 14: Emc Filter

    Wiring 2.4.2 EMC filter The inverter is equipped with a built-in EMC filter. Effective for reduction of air-propagated noise on the input side of the inverter. The EMC filter is factory-set to disable (OFF). To enable it, fit the EMC filter ON/OFF connector to the ON position. 3.7K or less 11K or more 5.5K, 7.5K...

  • Page 15: Specification Of Main Circuit Terminal

    Wiring 2.4.3 Specification of main circuit terminal Terminal Terminal Name Description Symbol R/L1, Connect to the commercial power supply. S/L2, AC power input Keep these terminals open when using the high power factor converter T/L3 (FR-HC and MT-HC) or power regeneration common converter (FR-CV). U, V, W Inverter output Connect a three-phase squirrel-cage motor.
  • Page 16 Wiring FR-A720-5.5K, 7.5K FR-A720-11K R1/L11 S1/L21 Screw size (M4) Charge lamp Jumper Charge lamp Jumper P/+ PR Jumper Jumper R1/L11 S1/L21 Screw size (M5) Screw size (M5) R/L1 S/L2 T/L3 R/L1 S/L2 T/L3 Power supply Motor Power supply Motor Screw size (M5) Screw size (M5) * Screw size of terminal R1/L11, S1/L21, PR, and PX is M4.
  • Page 17 Wiring 400V class FR-A740-0.4K to 3.7K FR-A740-5.5K, 7.5K Jumper Screw size (M4) R/L1 S/L2 T/L3 Charge lamp Jumper R1/L11 S1/L21 P/+ PR Jumper Jumper R1/L11 S1/L21 Screw size Charge lamp (M4) Screw size Power Motor (M4) supply R/L1 S/L2 T/L3 Motor Power supply Screw size...
  • Page 18 Wiring FR-A740-75K, 90K FR-A740-110K, 132K R1/L11 S1/L21 Screw size (M4) Charge lamp Jumper R1/L11 S1/L21 Screw size (M4) Charge lamp Screw size (M10) Jumper R/L1 S/L2 T/L3 N/- Screw size(M10) Screw size (M10) R/L1 S/L2 T/L3 Power supply Motor Screw size (M12) DC reactor (for option) Power...
  • Page 19 Wiring CAUTION · The power supply cables must be connected to R/L1, S/L2, T/L3. Never connect the power cable to the U, V, W of the inverter. Doing so will damage the inverter. (Phase sequence needs not to be matched.) ·...
  • Page 20 Wiring (1) Cable sizes etc., of the main control circuit terminals and earth (ground) terminals 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 21 Wiring 400V class (when input power supply is 440V) Cable Sizes Crimping Terminal Terminal Tightening AWG/MCM HIV, etc. (mm PVC, etc. (mm Applicable Screw Torque Earth Earth Inverter Type R/L1, R/L1, R/L1, R/L1, Size N·m U, V, W U, V, W P/+, P1 (Ground) U, V, W U, V, W...
  • Page 22 Wiring (2) Notes on earthing (grounding) • Leakage currents flow in the inverter. To prevent an electric shock, the inverter and motor must be earthed (grounded). This inverter must be earthed (grounded). Earthing (Grounding) must conform to the requirements of national and local safety regulations and electrical codes.
  • Page 23 Wiring (5) When connecting the control circuit and the main circuit separately to the power supply (separate power) <Connection diagram> When the protected circuit is activated, opening of the electromagnetic contactor (MC) on the inverter power supply side results in power loss in the control circuit, disabling the alarm output signal retention.
  • Page 24 Wiring • FR-A720-11K or more, FR-A740-11K or more 1) Remove the upper screws. 2) Remove the lower screws. L21 Power supply 3) Pull the jumper toward you to terminal block remove. for the control circuit Power supply terminal block 4) Connect the separate power supply for the control circuit R/L1S/L2 T/L3 cable for the control circuit to the...

  • Page 25: Control Circuit Terminals

    Wiring 2.4.5 Control circuit terminals indicates that terminal functions can be selected using Pr. 178 to Pr. 196 (I/O terminal function selection) (Refer to Instruction Manual (applied).) (1) Input signals Terminal Terminal Rated Refer to Description Symbol Name Specifications page Forward Turn on the STF signal to start forward When the STF and STR...
  • Page 26 Wiring Terminal Terminal Rated Refer to Description Symbol Name Specifications page 10VDC Instruction When connecting the frequency setting potentiometer at an initial Permissible load Manual status, connect it to terminal 10. Frequency current 10mA (applied) Change the input specifications of terminal 2 when connecting it setting power 5VDC supply...

  • Page 27: Specifications

    Wiring Terminal Terminal Rated Refer to Description Symbol Name Specifications page Switched low when the inverter output frequency is equal to or higher Instruction Inverter than the starting frequency (initial value 0.5Hz). Switched high during Manual running stop or DC injection brake operation. (applied) Switched low when the output frequency reaches within the range of ±10% (initial...

  • Page 28: Changing The Control Logic

    Wiring 2.4.6 Changing the control logic The input signals are set to sink logic (SINK) when shipped from the factory. To change the control logic, the jumper connector on the back of the control circuit terminal block must be moved to the other position.
  • Page 29 Wiring 4) Sink logic and source logic ⋅ In sink logic, a signal switches on when a current flows from the corresponding signal input terminal. Terminal SD is common to the contact input signals. Terminal SE is common to the open collector output signals. ⋅...

  • Page 30: Wiring Of Control Circuit

    Wiring 2.4.7 Wiring of control circuit (1) Control circuit terminal layout Terminal screw size: M3.5 Tightening torque: 1.2N·m C2 10E 10 STOP (2) Wiring instructions Terminals 5, SD and SE are common to the I/O signals and isolated from each other. Do not earth (ground). Avoid connecting the terminal SD and 5 and the terminal SE and 5.

  • Page 31: When Connecting The Operation Panel Using A Connection Cable

    Wiring 2.4.8 When 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 operationality improves. Parameter unit connection cable (FR-CB2 )(option) Operation panel(FR-DU07)

  • Page 32: Communication Operation

    Wiring 2.4.10 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 computer by a communication cable, a user program can run and Multidrop link monitor the inverter or read and write to parameters.

  • Page 33: Connection Of Motor With Encoder(Vector Control)

    Wiring 2.4.12 Connection of motor with encoder(vector control) Orientation control and encoder feedback control, and speed control, torque control and position control by full-scale vector control operation can be performed using a motor with encoder and a plug-in option FR-A7AP. (1) Structure of the FR-A7AP Mounting Front view...
  • Page 34 Wiring (3) Switches of the FR-A7AP • Encoder specification selection switch (SW1) Differential line Select either differential line driver or complementary driver (initial status) It is initially set to the differential line driver. Switch its position according to output circuit. Complementary •...
  • Page 35 Wiring (4) Encoder Cable SF-JR Motor with Encoder SF-V5RU Inverter side Encoder side F-DPEVSB 12P 0.2mm MS3057-12A MS3057-12A connector Approx. 140 F-DPEVSB 12P 0.2mm Earth cable Earth cable 60mm MS3106B20-29S MS3106B20-29S Type Length L (m) ⋅ A P clip for earthing (grounding) a Type Length L (m) shielded cable is provided.

  • Page 36: Speed Control

    Wiring (5) Wiring • Speed control Vector control dedicated motor Standard motor with encoder (SF-JR), 5V differential line driver (SF-V5RU), 12V complimentary SF-JR motor MCCB SF-V5RU MCCB with encoder Inverter Three-phase R/L1 AC power supply Three-phase S/L2 AC power supply T/L3 Inverter Earth...

  • Page 37: Position Control

    Wiring • Position control Vector control dedicated motor (SF-V5RU), 12V complimentary MCCB SF-V5RU Three-phase AC power supply MCCB Positioning unit R/L1 MELSEQ-Q QD75P1 Inverter Three-phase AC S/L2 power supply T/L3 Earth Thermal (ground) External thermal protector 2W1kΩ STOP CS(OH) relay input *2 Forward stroke end FR-A7AP Reverse stroke end...

  • Page 38: Initial Setting

    Wiring (6) Instructions for encoder cable wiring • Use twisted pair shield cables (0.2mm or larger) to connect the FR-A7AP and position detector. Cables to terminals PG and SD should be connected in paralell or be larger in size according to the cable length. To protect the cables from noise, run them away from any source of noise (e.g.
  • Page 39 Wiring (9) Combination with a vector control dedicated motor Refer to the table below when using with a vector control dedicated motor. • Combination with the SF-V5RU and SF-THY Voltage 200V class 400V class Rated speed 1500r/min Base 50Hz frequency Maximum 3000r/min speed...

  • Page 40: Power-Off And Magnetic Contactor (Mc)

    Power-off and magnetic contactor (MC) 2.5 Power-off and magnetic contactor (MC) (1) Inverter input side magnetic contactor (MC) On the inverter input side, it is recommended to provide an MC for the following purposes. Refer to page 3 for selection.) 1) To release the inverter from the power supply when the inverter's protective function is activated or when the drive is not functioning (e.g.

  • Page 41: Precautions For Use Of The Inverter

    Precautions for use of the inverter 2.6 Precautions for use of the inverter The FR-A700 series is a highly reliable product, but incorrect peripheral circuit making or operation/handling method may shorten the product life or damage the product. Before starting operation, always recheck the following items.

  • Page 42: When Using The High-Duty Brake Resistor (Fr-Abr)

    When using the high-duty brake resistor (FR-ABR) (14) If the machine must not be restarted when power is restored after a power failure, provide a magnetic contactor in the inverter's input side and also make up a sequence which will not switch on the start signal. If the start signal (start switch) remains on after a power failure, the inverter will automatically restart as soon as the power is restored.

  • Page 43: Drive The Motor

    Step of operation 3 DRIVE THE MOTOR 3.1 Step of operation The inverter needs frequency command and start command. Turning the start command on start the motor rotating and the motor speed is determined by the frequency command (set frequency). Refer to the flow chart below to perform setting.

  • Page 44: Operation Panel (Fr-Du07)

    Operation panel (FR-DU07) 3.2 Operation panel (FR-DU07) 3.2.1 Parts of the operation panel (FR-DU07) Operation mode indication PU: Lit to indicate PU operation mode. EXT: Lit to indicate external operation mode. NET: Lit to indicate network operation mode. Rotation direction indication FWD: Lit during forward rotation REV: Lit during reverse rotation Forward/reverse operation...

  • Page 45: Basic Operation (Factory Setting)

    Operation panel (FR-DU07) 3.2.2 Basic operation (factory setting) Operation mode switchover At powering on (external operation mode) PU Jog operation mode (Refer to page 43) (Example) Value change and frequency flicker. PU operation mode Frequency setting has been (output frequency monitor) written and completed!! Output current monitor Output voltage monitor...

  • Page 46: Operation Lock (Press [Mode] For An Extended Time (2S))

    Operation panel (FR-DU07) 3.2.3 Operation lock (Press [MODE] for an extended time (2s)) Operation using the setting dial and key of the operation panel can be made invalid to prevent parameter change and unexpected start and stop. · Set "10 or 11" in Pr. 161, then press for 2s to make the setting dial and key operation invalid.

  • Page 47: Monitoring Of Output Current And Output Voltage

    Operation panel (FR-DU07) 3.2.4 Monitoring of output current and output voltage POINT Monitor display of output frequency, output current and output voltage can be changed by pushing during monitoring mode. Operation Display Press during operation to choose the output frequency monitor Independently of whether the inverter is running in any operation mode or at a stop, the output current monitor appears by pressing...

  • Page 48: Change The Parameter Setting Value

    Operation panel (FR-DU07) 3.2.7 Change the parameter setting value Changing example Change the Pr. 1 Maximum frequency . Operation Display Screen at powering on The monitor display appears. PU indication is lit. Press to choose the PU operation mode. The parameter Press to choose the parameter number read...

  • Page 49: Parameter Clear, All Parameter Clear

    Operation panel (FR-DU07) 3.2.8 Parameter clear, all parameter clear POINT · Set "1" in Pr. CL parameter clear , ALLC all parameter clear to initialize all parameters. (Parameters are not cleared when "1" is set in Pr. 77 Parameter write selection.) ·...

  • Page 50: Parameter Copy And Parameter Verification

    Verify parameters in the inverter and operation panel. (Refer to page 47 .) REMARKS · When the copy destination inverter is not the FR-A700 series or parameter copy write is performed after parameter read is stopped, "model error ( )" is displayed.
  • Page 51 Operation panel (FR-DU07) appears...Why? Parameter read error. Perform operation from step 3 again. appears...Why? Parameter write error. Perform operation from step 8 again. flicker alternately Appears when parameters are copied between the inverter of or less and or more. 1. Set "0" in Pr. 160 User group read selection. 2.
  • Page 52 It there is no difference, flicker to complete verification. Flicker ··· Parameter verification complete!! REMARKS When the copy destination inverter is not the FR-A700 series, "model error ( )" is displayed. flickers ... Why? Set frequencies, etc. may be different. Check set frequencies.

  • Page 53: Before Operation

    Before operation 3.3 Before operation 3.3.1 Simple mode parameter list For simple variable-speed operation of the inverter, the initial setting of the parameters may be used as they are. Set the necessary parameters to meet the load and operational specifications. Parameter setting, change and check can be made from the operation panel (FR-DU07).

  • Page 54: Overheat Protection Of The Motor By The Inverter (Pr. 9)

    Before operation 3.3.2 Overheat protection of the motor by the inverter (Pr. 9) Set this parameter when using a motor other than the Mitsubishi standard motor (SF-JR) and Mitsubishi constant torque motor (SF-HRCA). Set the rated motor current in Pr. 9 Electronic thermal O/L relay to protect the motor from overheat. Parameter Name Initial Value...

  • Page 55: When The Rated Motor Frequency Is 50Hz (Pr. 3)

    Before operation 3.3.3 When the rated motor frequency is 50Hz (Pr. 3) First, check the motor rating plate. If a frequency given on the rating plate is "50Hz" only, always set Pr. 3 Base frequency to "50Hz". Leaving the base frequency unchanged from "60Hz" may make the voltage low and the torque insufficient. It may result in an inverter trip (E.OC ) due to overload.

  • Page 56: Increase The Starting Torque (Pr. 0)

    Before operation 3.3.4 Increase the starting torque (Pr. 0) Set this parameter when "the motor with a load will not rotate", "an alarm [OL] is output, resulting in an inverter trip due to [OC1], etc. Parameter Setting Name Initial Value Description Number Range...

  • Page 57: Limit The Maximum And Minimum Output Frequency (Pr. 1, Pr. 2)

    Before operation 3.3.5 Limit the maximum and minimum output frequency (Pr. 1, Pr. 2) Motor speed can be limitted. Parameter Setting Name Initial Value Description Number Range 120Hz 55K or less Maximum frequency 0 to 120Hz Set the upper limit of the output frequency. 60Hz 75K or more Minimum frequency...

  • Page 58: Change Acceleration And Deceleration Time (Pr. 7, Pr. 8)

    Before operation 3.3.6 Change acceleration and 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. Parameter Setting Name...

  • Page 59: Selection Of The Start Command And Frequency Command Locations (Pr. 79)

    Before operation 3.3.7 Selection of the start command and frequency command locations (Pr. 79) Select the start command location and frequency command location. LED Indication Parameter Initial Setting Name Description : Off Number Value Range : On External operation mode Use external/PU switchover mode (press to switch between the PU and external operation mode.

  • Page 60: Large Starting Torque And Low Speed Torque Are Necessary (Advanced Magnetic Flux Vector Control, Real Sensorless Vector Control) (Pr. 71, Pr. 80, Pr. 81, Pr. 800)

    Before operation 3.3.8 Large starting torque and low speed torque are necessary (advanced magnetic flux vector control, real sensorless vector control) (Pr. 71, Pr. 80, Pr. 81, Pr. 800) Magnetic flux Magnetic flux Magnetic flux Sensorless Sensorless Sensorless Advanced magnetic flux vector control can be selected by setting the capacity, poles and type of the motor used in Pr.
  • Page 61 Before operation <Selection method of advanced magnetic flux vector control> Setting procedure Perform secure wiring. (Refer to page 8.) Set the motor. (Pr. 71) (Refer to page 55.) Motor Pr. 71 Setting Remarks SF-JR 0 (initial value) Mitsubishi standard SF-JR 4P-1.5kW or less motor SF-HR Mitsubishi high...
  • Page 62 Before operation <Selection method of real sensorless vector control (speed control)> Speed control is exercised to match the speed command and actual motor speed. Setting procedure Perform secure wiring. (Refer to page 8.) Set the motor. (Pr. 71) (Refer to page 55.) Set "3"...

  • Page 63: Higher Accuracy Operation Using A Motor With Encoder (Vector Control) (Pr.71, Pr.80, Pr.81, Pr.359, Pr.369, Pr.800)

    Before operation 3.3.9 Higher accuracy operation using a motor with encoder (Vector control) (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 64 Before operation POINT If the conditions below are not satisfied, malfunction such as insufficient torque and uneven rotation may occur. · The motor capacity should be equal to or one rank lower than the inverter capacity. (note that the capacity is 0.4kW or more) Motor to be used is either Mitsubishi standard motor with encoder, high efficiency motor (SF-JR, SF-HR two-pole, ·...
  • Page 65 Before operation <Selection method of speed control> Speed control is exercised to match the speed command and actual motor speed. Setting procedure Perform secure wiring. (Refer to page 31.) Mount the FR-A7AP. Set the motor and encoder. (Pr. 71, Pr.359, Pr.369) Set Pr.71 Applied motor, Pr.359 Encoder rotation direction and Pr.369 Number of encoder pulses according to the motor and encoder used.
  • Page 66 Before operation <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. For torque control, therefore, the speed is determined by the load. For torque control, the motor gains speed as the motor output torque becomes greater than the motor load.
  • Page 67 Before operation <Selection method of position control> In the position control, the speed command is calculated so that the difference between command pulse (or parameter setting) and the number of feedback pulses from the encoder is zero to run the motor. This inverter can perform conditional position feed by contact input and position control by inverter conditional pulse input.

  • Page 68: To Exhibit The Best Performance Of The Motor Performance (Offline Auto Tuning) (Pr. 71, Pr. 83, Pr. 84, Pr. 96)

    Before operation 3.3.10 To exhibit the best performance of the motor performance (offline auto tuning) (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 69 Before operation (1) Before performing offline auto tuning Check the following before performing offline auto tuning. Make sure advanced magnetic flux vector control (Pr. 80, Pr. 81), real sensorless vector control or vector control (Pr. · 800) is selected. (Refer to page 55 ) A motor should be connected.
  • Page 70 Before operation (3) Execution of tuning CAUTION · Before performing tuning, check the monitor display of the operation panel (FR-DU07) or parameter unit (FR-PU04/FR- PU07) if the inverter is in the state ready for tuning. (Refer to 2) below) When the start command is turned on under V/F control, the motor starts.
  • Page 71 Before operation 3)When offline auto tuning ends, press of the operation panel during PU operation. For external operation, turn off the start signal (STF signal or STR signal). This operation resets the offline auto tuning and the PU's monitor display returns to the normal indication. (Without this operation, next operation cannot be started.) REMARKS ·...

  • Page 72: High Accuracy Operation Unaffected By The Motor Temperature (Online Auto Tuning) (Pr. 95)

    Before operation 3.3.11 High accuracy operation unaffected by the motor temperature (online auto tuning) (Pr. 95) 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 sensorless vector control or vector control, excellent torque accuracy is provided by temperature compensation even if the secondary resistance value of the motor varies with the rise of the motor temperature.

  • Page 73: To Perform High Accuracy / Fast Response Operation (Gain Adjustment Of Real Sensorless Vector Control) (Pr. 818 To Pr. 821, Pr. 880)

    Before operation 3.3.12 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 74 Before operation 2) Each control gain is automatically set from the load inertia ratio estimated during acceleration/deceleration operation and the Pr. 818 Easy gain tuning response level setting value. Pr. 880 Load inertia ratio is used as the initial value of the load inertia ratio for tuning. Estimated value is set in Pr. 880 during tuning.
  • Page 75 Before operation (4) 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. Proportional gain · Pr. 820 Speed control P gain 1 = "60%" (initial value) is equivalent to 120rad/s (speed responce of the motor alone).
  • Page 76 Before operation (5) 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 output terminal For the FR-V5RU, set "170V" for 3.7kW or less and " 160V "...
  • Page 77 Before operation Phenomenon Cause Countermeasures (1) The speed command varies. (1) -1 Check that a correct speed command comes from the command device. (Take measures against noises.) (1) -2 Decrease Pr. 72 PWM frequency selection. (1) -3 Increase Pr. 822 Speed setting filter 1. (Refer to Instruction Manual (applied) ) Motor speed is unstable.

  • Page 78: Start/Stop From The Operation Panel (Pu Operation Mode)

    Start/stop from the operation panel (PU operation mode) 3.4 Start/stop from the operation panel (PU operation mode) [Connection diagram] POINT Inverter Three-phase R/L1 From where is the frequency command given? S/L2 Motor AC power supply · Operation at the frequency set in the frequency setting mode T/L3 of the operation panel →Refer to 3.4.1 (Refer to page 73) ·...

  • Page 79: Operation Mode

    Start/stop from the operation panel (PU operation mode) 3.4.2 Use the setting dial like a potentiometer to perform operation. POINT Set "1" (setting dial potentiometer mode) in Pr. 161 Frequency setting/key lock operation selection. Operation example Change the frequency from 0Hz to 60Hz during operation Operation Display Screen at powering on...

  • Page 80: Use Switches To Give A Start Command And A Frequency Command (Multi-Speed Setting)

    Start/stop from the operation panel (PU operation mode) 3.4.3 Use switches to give a start command and a frequency command (multi-speed setting) POINT · Use to give a start command. · Pr. 79 Operation mode selection must be set to "4" (external/PU combined operation mode 2) ·...

  • Page 81: Perform Frequency Setting By Analog (Voltage Input)

    Start/stop from the operation panel (PU operation mode) 3.4.4 Perform frequency setting by analog (voltage input) POINT · Use to give a start command. · Pr. 79 Operation mode selection must be set to "4" (external/PU combined operation mode 2) [Connection diagram] (The inverter supplies 5V of power to the frequency setting potentiometer.(Terminal 10)) Inverter...

  • Page 82: Perform Frequency Setting By Analog (Current Input)

    Start/stop from the operation panel (PU operation mode) 3.4.5 Perform frequency setting by analog (current input) POINT · Use to give a start command. · Turn the AU signal on. · Pr. 79 Operation mode selection must be set to "4" (external/PU combined operation mode 2) [Connection diagram] Inverter Three-phase...

  • Page 83: Make A Start And Stop With Terminals (External Operation)

    Make a start and stop with terminals (external operation) 3.5 Make a start and stop with terminals (external operation) POINT From where is the frequency command given? · Operation at the frequency set in the frequency setting mode of the operation panel → Refer to 3.5.1(Refer to page 78) ·...

  • Page 84: External Operation

    Make a start and stop with terminals (external operation) 3.5.2 Use switches to give a start command and a frequency command (multi-speed setting) (Pr. 4 to Pr. 6) POINT · Start command by terminal STF (STR)-SD · Frequency command by terminal RH, RM, RL and STR-SD ·...
  • Page 85 Make a start and stop with terminals (external operation) [EXT] is not lit even when is pressed ... Why? Switchover of the operation mode with is valid when Pr. 79 = "0" (initial value). 50Hz, 30Hz and 10Hz are not output from RH, RM and RL respectively when they are turned on..Why? Check for the setting of Pr.

  • Page 86: Perform Frequency Setting By Analog (Voltage Input)

    Make a start and stop with terminals (external operation) 3.5.3 Perform frequency setting by analog (voltage input) [Connection diagram] (The inverter supplies 5V of power to frequency setting potentiometer. (Terminal 10)) Inverter Three-phase R/L1 Motor S/L2 AC power supply T/L3 Forward rotation start Reverse rotation...

  • Page 87: Change The Frequency (60Hz) Of The Maximum Value Of Potentiometer (At 5V, Initial Value)

    Make a start and stop with terminals (external operation) The motor will not rotate ... Why? Check that [EXT] is lit. [EXT] is valid when Pr. 79 = "0" (initial value) or "2". to lit [EXT]. Check that wiring is correct. Check once again. Change the frequency (0Hz) of the minimum value of potentiometer (at 0V, initial value) Adjust the frequency in calibration parameter C2 Terminal 2 frequency setting bias frequency.

  • Page 88: Perform Frequency Setting By Analog (Current Input)

    Make a start and stop with terminals (external operation) 3.5.5 Perform frequency setting by analog (current input) POINT · Switch terminal STF(STR)-SD on to give a start command. · Turn the AU signal on. · Set "2" (external operation mode) in Pr. 79 Operation mode selection [Connection diagram] Inverter Three-phase...

  • Page 89: Change The Frequency (60Hz) Of The Maximum Value Of Potentiometer (At 20Ma, Initial Value)

    Make a start and stop with terminals (external operation) The motor will not rotate ... Why? Check that [EXT] is lit. [EXT] is valid when Pr. 79 = "0" (initial value) or "2". to lit [EXT]. Check that the AU signal is on. Turn the AU signal on.

  • Page 90: Parameter List

    Parameter List 3.6 Parameter List 3.6.1 List of parameters classified by purpose of use Set the parameters according to the operating conditions. The following list indicates purpose of use and corresponding parameters. Purpose of Use Parameter Number Control mode Change the control method Pr.
  • Page 91 Parameter List Purpose of Use Parameter Number Pr. 7, Pr. 8, Pr. 20, Pr. 21, Pr. 44, Acceleration/deceleration time setting Pr. 45, Pr. 110, Pr. 111 Starting frequency Pr. 13, Pr. 571 Pr. 29, Pr. 140 to Pr. 143, Pr.380 to Acceleration/deceleration Acceleration/deceleration pattern and backlash measures Pr.
  • Page 92 Parameter List Purpose of Use Parameter Number Energy saving control selection Pr. 60 Energy saving operation How much energy can be saved (energy saving monitor) Pr. 891 to Pr. 899 Carrier frequency and SoftPWM selection Pr. 72, Pr. 240 Reduction of the motor noise Measures against noise and Pr.

  • Page 93: Parameter List

    Parameter List 3.6.2 Parameter list · indicates simple mode parameters. · The abbreviations in the explanations below indicate: ...V/F control ...advanced magnetic flux vector control Magnetic flux Magnetic flux Magnetic flux ...real sensorless vector control Sensorless Sensorless Sensorless ...vector control. Vector Vector Vector...
  • Page 94 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Set the motor acceleration time. 0.1/ 0 to 3600/ * The initial value differs according to the Acceleration time 5/15s 0.01s...
  • Page 95 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Starting frequency 0.01Hz 0.5Hz 0 to 60Hz Starting frequency can be set. Set the holding time of Pr. 13 Starting 0.0 to 10.0s frequency.
  • Page 96 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Stall prevention operation selection becomes invalid. Function as stall prevention operation Stall prevention under V/F control and advanced magnetic 0.1% 150% operation level...
  • Page 97 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled This functions as torque limit level under real sensorless vector control. * For the 3.7K or less, the initial value changes 150/ from 150% to 200% when V/F control or Torque limit level...
  • Page 98 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Linear acceleration/ deceleration S-pattern acceleration/deceleration A Acceleration/ S-pattern acceleration/deceleration B deceleration pattern Backlash measures selection S-pattern acceleration/deceleration C S-pattern acceleration/deceleration D Backlash acceleration...
  • Page 99 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled 0 to 400Hz, Frequency jump 1A 0.01Hz 9999 9999 0 to 400Hz, Frequency jump 1B 0.01Hz 9999 9999 0 to 400Hz,...
  • Page 100 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled 0, 5 to 14, Select monitor to be displayed on the operation panel and parameter unit and 17 to 20, DU/PU main display monitor to be output to the terminal FM and...
  • Page 101 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Set the full-scale value to output the output Frequency 0.01Hz 60Hz 0 to 400Hz frequency monitor value to terminal FM monitoring reference and AM.
  • Page 102 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Setting value (rated motor current) is referenced 0 to 500/ * The increments and setting range differ 0.01/ Reference current 0 to 3600A...
  • Page 103 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Thermal characteristics of a standard motor Thermal characteristics of the Mitsubishi constant-torque motor Thermal characteristic of standard motor Adjustable 5 points V/F Mitsubishi standard motor (SF-JR 4P 1.5kW or less)
  • Page 104 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled PWM carrier frequency can be changed. The setting displayed is in [kHz]. Note that 0 indicates 0.7kHz, 15 indicates 14.5kHz, 25 indicates 2.5.
  • Page 105 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled You can select the reset input acceptance, /FR-PU07 disconnected PU (FR-DU07 /FR- Reset selection/ PU04) connector detection function and PU disconnected PU 0 to 3, ×...
  • Page 106 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Set the applied motor capacity. 0.4 to 55/ * The increments and setting range differ 0.01/ Motor capacity 0 to 3600kW 9999...
  • Page 107 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Tuning data (The value measured by offline auto tuning 0 to 500/ is automatically set.) Motor excitation 0.01/ * The increments and setting range differ 0 to 3600A *...
  • Page 108 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Tuning data of the second motor (The value measured by offline auto tuning 0 to 50Ω/ is automatically set.) Second motor 0.001Ω/...
  • Page 109 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Refer to Pr. 82 to Pr. 84. — 0 to 400Hz, V/F1(first frequency) 0.01Hz 9999 9999 V/F1(first frequency 0.1V 0 to 1000V...
  • Page 110 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled PU communication Without CR/LF CR/LF presence/ With CR absence selection With CR/LF Set the inverter station number. RS-485 (same specifications as Pr.
  • Page 111 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Terminal 2 Set the frequency of terminal 2 input gain × frequency setting 0.01Hz 60Hz 0 to 400Hz (maximum).
  • Page 112 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled PID control Set the frequency at which the control is 0 to 400Hz automatically changed to PID control. automatic 0.01Hz 9999...
  • Page 113 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Commercial power- With commercial power-supply switchover sequence supply switchover sequence output Without commercial power-supply terminal selection switchover sequence MC switchover Set the operation interlock time of MC2...
  • Page 114 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Output current Set the output current detection level. 0.1% 150% 0 to 220% detection level 100% is the rated inverter current. Set the output current detection period.
  • Page 115 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled 0 to 20, 0: Low-speed operation command 22 to 28, 1: Middle-speed operation command STF terminal ×...
  • Page 116 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled 0, 100: Inverter running 1, 101: Up to frequency RUN terminal 0 to 8, × 2, 102: Instantaneous power failure/ function selection 10 to 20, undervoltage...
  • Page 117 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled 232 to 239 Refer to Pr. 4 to Pr. 6. Refer to Pr. 72. — Refer to Pr. 125 and Pr. 126. 242, 243 Refer to Pr.
  • Page 118 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Display whether the control circuit capacitor, main circuit capacitor, cooling Life alarm status × × × (0 to 15) fan, and each parts of the inrush current display...
  • Page 119 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Refer to Pr. 73. Refer to Pr. 52. — Parameter for manufacturer setting. Do not set. Without stop-on contact control and load Stop-on contact/ torque high-speed frequency control...
  • Page 120 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Set to the rated slip frequency of the motor Brake opening + about 1.0Hz. 0.01Hz 0 to 30Hz This parameter may be only set if Pr.
  • Page 121 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Droop control is invalid Set the drooping amount at the rated Droop gain 0.1% 0.1 to torque as a percentage with respect to the 100% rated frequency.
  • Page 122 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Communication Operation command source communication operation command source Operation command source external Speed command source communication Speed command source external (Frequency setting from communication is Communication...
  • Page 123 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Speed command When 1 is set in Pr.350 and the Position command option FR-A7AX is 16 bit data is used as mounted, set a stop external position com- position using 16-...
  • Page 124 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Encoder Clockwise direction as viewed Encoder rotation from A is forward rotation direction Encoder Clockwise direction as viewed from A is forward rotation Speed feedback 0 to 400Hz Set the region of speed feedback control.
  • Page 125 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled 0 to 32767 The in-position signal (Y36) turns on when the In-position width 1 pulse pulse pulse droop pulses become less than the setting.
  • Page 126 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Eighth position feed 0 to 9999 amount lower 4 digits Speed 8 (Pr.232) Eighth position feed 0 to 9999 amount upper 4 digits Ninth position feed...
  • Page 127 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Current average Set the time taken to average the current 0.1s 0.1 to 1.0s time during start bit output (1s). Data output mask Set the time for not obtaining (mask) 0.1s...
  • Page 128 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Easy gain tuning 1 : Slow response response level ↓ 1 to 15 15 : Fast response setting No tuning With load estimation...
  • Page 129 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Model speed 0 to 1000% Set the gain for model speed controller. control gain Speed feed forward Normal speed control is exercised control/model Speed feed forward control is exercised.
  • Page 130 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Frequency/speed command Terminal 4 function Magnetic flux command × assignment Stall prevention/torque limit 9999 No function Frequency setting auxiliary Magnetic flux command Regenerative torque limit...
  • Page 131 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Regeneration avoidance function invalid Regeneration Regeneration avoidance function is always avoidance valid operation selection Regeneration avoidance function is valid only at constant speed Set the bus voltage level at which regeneration avoidance operates.
  • Page 132 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Set the load factor for commercial power- supply operation. Load factor 0.1% 100% 30 to 150% This value is used to calculate the power consumption estimated value during commercial power supply operation.
  • Page 133 Parameter List Parameter Param Param param eter eter eter Incre Initial copy clear Name Range Description clear ments Value : enabled × : disabled Terminal 1 bias Set the frequency on the bias side of × 0.01Hz 0 to 400Hz (917) frequency (speed) terminal 1 input.

  • Page 134: Troubleshooting

    Reset method of protective function 4 TROUBLESHOOTING When an alarm (major failures) occurs in the inverter, the protective function is activated bringing the inverter to an alarm stop and the PU display automatically changes to any of the following error (alarm) indications. If your fault does not correspond to any of the following errors or if you have any other problem, please contact your sales representative.

  • Page 135: List Of Alarm Display

    List of alarm display 4.2 List of alarm display Operation Panel Refer Operation Panel Refer Name Name Indication Indication Output side earth (ground) E.GF E - - - Alarm history fault overcurrent HOLD Operation panel lock E.LF Output phase failure External thermal relay E.OHT Er1 to 4 Parameter write error...

  • Page 136: Causes And Corrective Actions

    Causes and corrective actions 4.3 Causes and corrective actions (1) Error Message A message regarding operational troubles is displayed. Output is not shut off. Operation Panel HOLD Indication Name Operation panel lock Description Operation lock mode is set. Operation other than is made invalid.
  • Page 137 2. Check that the power is not turned off or an operation panel is not disconnected, etc. during parameter copy read. 1. Use the same model (FR-A700 series) for parameter copy and verification. Corrective action 2. Perform parameter copy read again.
  • Page 138 Causes and corrective actions (2) Warnings When the protective function is activated, the output is not shut off. Operation Panel FR-PU04 Indication FR-PU07 Name Stall prevention (overcurrent) When the output current (output torque during real sensorless vector control or vector control) of the inverter exceeds the stall prevention operation level (Pr.
  • Page 139 Causes and corrective actions Operation Panel FR-PU04 Indication FR-PU07 Name Regenerative brake prealarm Appears if the regenerative brake duty reaches or exceeds 85% of the Pr. 70 Special regenerative brake duty value. If the regenerative brake duty reaches 100%, a regenerative overvoltage (E. OV_) occurs. Description The RBP signal can be simultaneously output with the [RB] display.
  • Page 140 Causes and corrective actions (4) Major fault When the protective function is activated, the inverter output is shut off and an alarm is output. Operation Panel FR-PU04 E.OC1 OC During Accs Indication FR-PU07 Name Overcurrent shut-off during acceleration When the inverter output current reaches or exceeds approximately 220% of the rated current during Description acceleration, the protective circuit is activated to stop the inverter output.
  • Page 141 Causes and corrective actions Operation Panel FR-PU04 E.OV2 Stedy Spd OV Indication FR-PU07 Name Regenerative overvoltage shut-off during constant speed If regenerative energy causes the inverter's internal main circuit DC voltage to reach or exceed the Description specified value, the protective circuit is activated to stop the inverter output. The circuit may also be activated by a surge voltage produced in the power supply system.
  • Page 142 Causes and corrective actions Operation Panel FR-PU04 E.IPF Inst. Pwr. Loss Indication FR-PU07 Name Instantaneous power failure If a power failure occurs for longer than 15ms (this also applies to inverter input shut-off), the instantaneous power failure protective function is activated to stop the inverter output in order to prevent the control circuit from malfunctioning.
  • Page 143 Causes and corrective actions FR-PU04 Operation Panel E.GF Ground Fault Indication FR-PU07 Name Output side earth (ground) fault overcurrent This function stops the inverter output if an earth (ground) fault overcurrent flows due to an earth Description (ground) fault that occurred on the inverter's output (load) side. Check point Check for an earth (ground) fault in the motor and connection cable.
  • Page 144 Causes and corrective actions Operation Panel FR-PU04 E.OP3 Option slot alarm 3 Indication FR-PU07 Name Communication option alarm Description Stops the inverter output when a communication line error occurs in the communication option. · Check for a wrong option function setting and operation. ·...
  • Page 145 Causes and corrective actions Operation Panel FR-PU04 E.RET Retry No Over Indication FR-PU07 Name Retry count excess If operation cannot be resumed properly within the number of retries set, this function stops the inverter Description output. Check point Find the cause of alarm occurrence. Corrective action Eliminate the cause of the error preceding this error indication.
  • Page 146 Causes and corrective actions Operation Panel FR-PU04 E.ECT No encoder signal Indication FR-PU07 Name Open cable detection Stops the inverter output when the encoder signal is shut off under orientation control, encoder Description feedback control or vector control. · Check for the encoder signal loss. ·...
  • Page 147 Causes and corrective actions FR-PU04 Fault 14 Operation Panel E.IOH Indication FR-PU07 Inrush overheat Name Inrush current limit circuit alarm This function is activated when the resistor of the inrush current limit circuit overheats. The inrush Description current limit circuit failure Check point Check that frequent power ON/OFF is not repeated.

  • Page 148: Correspondences Between Digital And Actual Characters

    Correspondences between digital and actual characters 4.4 Correspondences between digital and actual characters There are the following correspondences between the actual alphanumeric characters and the digital characters displayed on the operation panel. Actual Digital Actual Digital Actual Digital...

  • Page 149: Check And Clear Of The Alarm History

    Check and clear of the alarm history 4.5 Check and clear of the alarm history (1) Check for the alarm (major fault) history Monitor/frequency setting Parameter setting [Operation panel is used [Parameter setting change] for operation] Alarm history [Operation for displaying alarm history] Eight past alarms can be displayed with the setting dial.
  • Page 150 Check and clear of the alarm history (2) Clearing procedure POINT · The alarm history can be cleared by setting "1" in Er.CL Alarm history clear. (The alarm history is not cleared when "1" is set in Pr. 77 Parameter write selection) Display Operation Screen at powering on...

  • Page 151: Check First When You Have Troubles

    Check first when you have troubles 4.6 Check first when you have troubles POINT If the cause is still unknown after every check, it is recommended to initialize the parameters (initial value) then reset the required parameter values and check again. 4.6.1 Motor does not rotate as commanded 1) Check the Pr.0 Torque boost setting if V/F control is exercised.

  • Page 152: Motor Rotates In Opposite Direction

    Check first when you have troubles 4.6.4 Motor rotates in opposite direction Check that the phase sequence of output terminals U, V and W is correct. Check that the start signals (forward rotation, reverse rotation) are connected properly. (Refer to page 78) 4.6.5 Speed greatly differs from the setting Check that the frequency setting signal is correct.

  • Page 153: Operation Mode Is Not Changed Properly

    Check first when you have troubles 4.6.10 Operation mode is not changed properly If the operation mode does not change correctly, check the following: 1) Inspection of load Check that the STF or STR signal is off. When it is on, the operation mode cannot be changed. 2) Parameter setting Check the Pr.

  • Page 154: Precautions For Maintenance And Inspection

    Inspection item 5 PRECAUTIONS FOR MAINTENANCE AND INSPECTION The inverter is a static unit mainly consisting of semiconductor devices. Daily inspection must be performed to prevent any fault from occurring due to the adverse effects of the operating environment, such as temperature, humidity, dust, dirt and vibration, changes in the parts with time, service life, and other factors.

  • Page 155: Daily And Periodic Inspection

    Inspection item 5.1.3 Daily and periodic inspection Interval Corrective Action at Inspection Item Description Alarm Occurrence Surrounding Check the ambient temperature, humidity, dirt, Improve emvironment environment corrosive gas, oil mist , etc Check alarm location and General Overall unit Check for unusual vibration and noise retighten Check that the main circuit voltages and control Power supply...

  • Page 156: Display Of The Life Of The Inverter Parts

    Inspection item 5.1.4 Display of the life of the inverter parts The self-diagnostic alarm is output when the life span of the control circuit capacitor, cooling fan, each parts of the inrush current limit circuit is near to give an indication of replacement time . The life alarm output can be used as a guideline for life judgement.

  • Page 157: Cleaning

    Inspection item (2) Measuring method of life of the main circuit capacitor · If the value of capacitor capacity measured before shipment is considered as 100%, Pr. 255 bit1 is turned on when the measured value falls below 85%. · Measure the capacitor capacity according to the following procedure and check the deterioration level of the capacitor capacity.
  • Page 158 Inspection item (1) Cooling fan The replacement interval of the cooling fan used for cooling the parts generating heat such as the main circuit semiconductor is greatly affected by the ambient temperature. When unusual noise and/or vibration is noticed during inspection, the cooling fan must be replaced immediately.
  • Page 159 Inspection item • Reinstallation (FR-A720-1.5K to 90K, FR-A740-2.2K to 132K) 1) After confirming the orientation of the fan, reinstall the fan so that the arrow on the left of "AIR FLOW" faces up. AIR FLOW <Fan side face> CAUTION Installing the fan in the opposite air flow direction can cause the inverter life to be shorter. 2) Reconnect the fan connectors.
  • Page 160 Inspection item • Removal (FR-A740-160K or more) Fan * Fan connection connector * The number of cooling fans differs according to the inverter capacity. (Refer to page 153) • Reinstallation (FR-A740-160K or more) 1) After confirming the orientation of the fan, reinstall the fan so that the arrow on the left of "AIR FLOW" faces up. AIR FLOW <Fan side face>...

  • Page 161: Inverter Replacement

    Inspection item (3) Smoothing capacitors A large-capacity aluminum electrolytic capacitor is used for smoothing in the main circuit DC section, and an aluminum electrolytic capacitor is used for stabilizing the control power in the control circuit. Their characteristics are deteriorated by the adverse effects of ripple currents, etc.

  • Page 162: Specifications

    Rating 6 SPECIFICATIONS 6.1 Rating 6.1.1 Inverter rating 200V class Type FR-A720- 0.4 0.75 1.5 18.5 22 Applicable motor capacity (kW) 0.75 1.5 18.5 Rated capacity (kVA) 12.6 17.6 23.3 110 132 Rated current (A) 17.5 115 145 175 215 (245) (294) Overload current rating...
  • Page 163 Rating 400V class Type FR-A740- 0.75 18.5 Applicable motor capacity (kW) 0.75 18.5 Rated capacity (kVA) 17.5 23.6 32.8 43.4 Rated current (A) Overload current rating 150% 60s, 200% 3s (inverse time characteristics) ambient temperature 50°C Voltage Three-phase 380 to 480V Regenerative Maximum value/ 100% torque/2%ED...

  • Page 164: Motor Rating

    Rating 6.1.2 Motor rating (1) SF-V5RU 200V class (Mitsubishi dedicated motor [SF-V5RU (1500r/min series)]) Motor type SF-V5RU Applicable inverter type 18.5 FR-A720- Rated output (kW) 18.5 · 9.55 14.1 23.6 35.0 47.7 70.0 95.5 Rated torque (N Maximum torque 150% 14.3 21.1 35.4...
  • Page 165 Rating (2) SF-THY SF-THY Motor type Applicable Inverter FR-A720- Rated output(kW) · 48.7 Rated torque (kgf · · 73.0 Maximum torque (kgf · 150%60s 1500 Rated speed (r/min) 2400 Maximum speed (r/min) 250MD Frame No. · Inertia moment J (kg 90dB Noise Three-phase, 200V/50Hz, 200V/60Hz, 220V/60Hz...

  • Page 166: Common Specifications

    Common specifications 6.2 Common specifications Soft-PWM control/high carrier frequency PWM control (selectable from among V/F control, advanced magnetic flux vector control and Control method real sensorless vector control) / vector control (when used with option FR-A7AP) Output frequency range 0.2 to 400Hz 0.015Hz/0 to 60Hz (terminal 2, 4: 0 to 10V/12bit) Frequency Analog input...

  • Page 167: Outline Dimension Drawings

    Outline dimension drawings 6.3 Outline dimension drawings 6.3.1 Inverter outline dimension drawings FR-A720-0.4K, 0.75K 2-φ6 hole Inverter Type FR-A720-0.4K FR-A720-0.75K Unit: mm FR-A720-1.5K, 2.2K, 3.7K FR-A740-0.4K, 0.75K, 1.5K, 2.2K, 3.7K 2-φ6 hole * The FR-A740-0.4K to 1.5K are not provided with a cooling fan.
  • Page 168 Outline dimension drawings FR-A720-5.5K, 7.5K, 11K FR-A740-5.5K, 7.5K, 11K, 15K 2-φ6 hole Inverter Type FR-A720-5.5K, 7.5K FR-A740-5.5K, 7.5K FR-A720-11K 101.5 FR-A740-11K, 15K Unit: mm FR-A720-15K, 18.5K, 22K FR-A740-18.5K, 22K 2-φ10 hole 10.5 Unit: mm...
  • Page 169 Outline dimension drawings FR-A720-30K, 37K, 45K, 55K FR-A740-30K, 37K, 45K, 55K 2-φd hole Inverter Type FR-A720-30K FR-A740-30K FR-A720-37K, 45K FR-A740-37K, 45K, 55K FR-A720-55K Unit: mm FR-A740-75K, 90K DC reactor supplied 2-φ12hole Rating plate 2-terminal (for M12 bolt) P1, P 4-installation hole (for M6 screw) Within D Earth (ground) terminal...
  • Page 170 Outline dimension drawings FR-A720-75K, 90K FR-A740-110K, 132K 2-φ12 hole DC reactor supplied Rating plate 2-terminal (for M12 bolt) 4-installation hole (for S screw) Within Earth (ground) terminal (for M6 screw) DC Reactor Type Mass (kg) FR-HEL-75K (FR-A720-75K) FR-HEL-90K (FR-A720-90K) FR-HEL-H110K (FR-A740-110K) FR-HEL-H132K (FR-A740-132K) Unit: mm...
  • Page 171 Outline dimension drawings FR-A740-160K, 185K 3-φ12 hole DC reactor supplied Rating plate 2-terminal (for M12 bolt) 4-installation hole (for S screw) Within Earth (ground) terminal (for M6 screw) Mass DC Reactor Type (kg) FR-HEL-H160K (FR-A740-160K) FR-HEL-H185K (FR-A740-185K) Unit: mm FR-A740-220K, 250K, 280K 3-φ12 hole DC reactor supplied Rating plate...
  • Page 172 Outline dimension drawings FR-A740-315K, 355K 3-φ12 hole R/L1 T/L3 S/L2 DC reactor supplied Rating plate 2-M8 eye nut 2-terminal (for M16 bolt) 4-installation hole (for M10 screw) Within 250 Earth (ground) terminal (for M8 screw) * Remove the eye nut after installation of the product. DC Reactor Type Mass (kg) FR-HEL-H315K (FR-A740-315K)
  • Page 173 Outline dimension drawings FR-A740-400K, 450K, 500K 4-φ12 hole R/L1 S/L2 T/L3 N/- DC reactor supplied DC reactor supplied Rating plate Rating plate 2-M8 eye nut 2-terminal 4- 15 hole 2-terminal 4- 15 hole Earth (ground) terminal (for M12 screw) * Remove the eye nut after installation of the product. Within 245 2-M12 eye nut 4-installation hole...

  • Page 174: Outline Drawing

    Outline dimension drawings Operation panel (FR-DU07) <Outline drawing> <Panel cutting dimension drawing> Panel 27.8 FR-DU07 3.2max Air- bleeding hole Cable 2-M3 screw Operation panel connection connector (FR-ADP) Unit: mm Parameter unit (option) (FR-PU07) <Outline drawing> <Panel cutting dimension drawing> 25.05 (14.2) (11.45) Air-bleeding...

  • Page 175: Dedicated Motor Outline Dimension Drawings

    Outline dimension drawings 6.3.2 Dedicated motor outline dimension drawings Dedicated motor (SF-V5RU(H)) outline dimension drawings (standard horizontal type) (1500r/min series) SF-V5RU(H) SF-V5RU(H) Connector (for encoder) Connector (for encoder) MS3102A20-29P MS3102A20-29P Ｒ Ｒ Exhaust Exhaust Suction Suction Direction of Direction of cooling fan wind cooling fan wind Mark for earthing...
  • Page 176 Outline dimension drawings Dedicated motor (SF-V5RU(H)) outline dimension drawings (standard horizontal type with brake) (1500r/min series) SF-V5RU(H) SF-V5RU(H) Connector (for encoder) Connector (for encoder) MS3102A20-29P Terminal box for cooling fan MS3102A20-29P Terminal box for cooling fan Main Exhaust terminal box Suction Exhaust Main...
  • Page 177 Outline dimension drawings Dedicated motor (SF-V5RU(H)) outline dimension drawings (flange type) (1500r/min series) SF-V5RUF(H) SF-V5RUF(H) Connector (for encoder) Connector (for encoder) MS3102A20-29P MS3102A20-29P LN LZ Exhaust LN LZ Section Exhaust Section Suction Suction Direction of cooling fan wind Earth (ground) terminal (M5) Direction of Mark for earthing (grounding) cooling fan wind...
  • Page 178 Outline dimension drawings Dedicated motor (SF-V5RU(H)) outline dimension drawings (flange type with brake) (1500r/min series) SF-V5RUF(H) SF-V5RUF(H) Connector (for encoder) Connector (for encoder) Terminal box for cooling fan MS3102A20-29P Terminal box for cooling fan MS3102A20-29P Exhaust Exhaust Main Main terminal box terminal box Suction Suction...
  • Page 179 Outline dimension drawings Dedicated motor (SF-THY) outline dimension drawings (1500r/min series) 75kW to 160kW PF4 Class B screw Connector (for encoder) Terminal box for cooling fan MS3102A20-29P Suction Exhaust Direction of cooling fan wind 4-φZ hole This hole is not used. 200kW, 250kW PF4 Class B screw Connector (for encoder)

  • Page 180: Heatsink Protrusion Attachment Procedure

    Heatsink protrusion attachment procedure 6.4 Heatsink protrusion attachment procedure 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 installing the inverter in a compact enclosure, etc., this installation method is recommended.
  • Page 181 Heatsink protrusion attachment procedure (2) Shift and removal of a rear side installation frame • FR-A740-160K to 280K Shift One installation frame is attached to each of the upper and lower part of the inverter. Change the position of the rear side installa- Upper installation tion frame on the upper and lower side of the inverter to the front...
  • Page 182 Heatsink protrusion attachment procedure (3) Installation of the inverter Push the inverter heatsink portion outside the enclosure and fix the enclosure and inverter with upper and lower installation frame. * For the FR-A740-160K or more, there are finger Enclosure guards behind the enclosure. Therefore, the thickness of the panel should be less than 10mm Inside the Exhausted air...

  • Page 183: Appendices

    Note that the wiring cover (0.4K to 22K) is not compatible. FR-A500 series FR-A700 series (Note that the relay output 2 (A2, B2, C2) specific for the FR-A700 series can not be used with the FR-A500 series terminals.) (3) Instructions for continuous use of the FR-PU04 (parameter unit) 1) For the FR-A700 series, many functions (parameters) have been added.

  • Page 184: Appendix 1-2Replacement Of The Fr-A200 Series

    For customers who have replaced the older model with this inverter (5) Main differences and compatibilities with the FR-A500(L) series Item FR-A500(L) FR-A700 V/F control V/F control Advanced magnetic flux vector control Control method Advanced magnetic flux vector control Real sensorless vector control Vector control (used with a plug-in option FR-A7AP) User group (16) only User group 1 (16), user group 2 (16)

  • Page 185: Appendix 2 Instructions For Ul And Cul

    Appendix 2 Instructions for UL and cUL (Conforming standard UL 508C, CSA C22.2 No.14) (1) Installation This inverter is UL-listed as a product for use in an enclosure. Design an enclosure so that the inverter ambient temperature, humidity and atmosphere satisfy the specifications. (Refer to page 161.) Wiring protection For installation in the United States, branch circuit protection must be provided in accordance with the National...
  • Page 186 (4) Motor overload protection This inverter is certified as a motor overload protection device by UL. When using the electronic thermal relay function as motor overload protection, set the rated motor current to Pr. 9 Electronic thermal O/L relay. Electronic thermal relay function operation characteristic Pr.

  • Page 187: Appendix 3 Instructions For Compliance With The European Directives

    Appendix 3 Instructions for Compliance with the European Directives (1) EMC Directive We have self-confirmed our inverters as products compliant to the EMC Directive (second environment of conforming standard EN61800- 3) and place the CE mark on the inverters. Note: First environment Environment including residential buildings.
  • Page 188 REVISIONS *The manual number is given on the bottom left of the back cover. Print Date Revision Manual Number Jun., 2005 IB(NA)-0600225ENG-A First edition Aug., 2005 IB(NA)-0600225ENG-B Additions ⋅ FR-A720-75K, 90K ⋅ FR-A740-0.4K to 160K Sep., 2005 IB(NA)-0600225ENG-C Additions FR-A740-185K to 500K Compatible with the FR-A7AP ⋅...

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