Mitsubishi FR-F720-00046-NA User manual

INSTRUCTION MANUAL
INVERTER
INVERTER FR-F700-NA INSTRUCTION MANUAL
H
IB(NA)-0600217ENG-H (1208)MEE Printed in Japan Specifications subject to change without notice.
3
PRECAUTIONS FOR USE
OF THE INVERTER
4
PARAMETERS
5
PROTECTIVE FUNCTIONS
6
PRECAUTIONS FOR
MAINTENANCE AND INSPECTION
7
SPECIFICATIONS
WIRING
OUTLINE
2
1
HEAD OFFICE: TOKYO BUILDING 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
FR-F720-00046 to 04750-NA
FR-F740-00023 to 12120-NA

A-1
Thank you for choosing this Mitsubishi Inverter.
This Instruction Manual provides instructions for advanced use of the FR-F700 series inverters.
Incorrect handling might cause an unexpected fault. Before using the inverter, always read this Instruction Manual and the Installation
Guideline [IB-0600218ENG] packed with the product carefully to use the equipment to its optimum.
1. Electric Shock Prevention
2. Fire Prevention
3. Injury Prevention
4. Additional Instructions
Also the following points must be noted to prevent an accidental failure, injury,
electric shock, etc.
This section is specifically about safety matters
Do not attempt to install, operate, maintain or inspect the inverter
until you have read through Installation Guideline and appended
documents carefully and can use the equipment correctly. Do not
use the inverter until you have a full knowledge of the equipment,
safety information and instructions. In this Instruction Manual, the
safety instruction levels are classified into "WARNING" and
"CAUTION".
Incorrect handling may cause hazardous
conditions, resulting in death or severe injury.
Incorrect handling may cause hazardous
conditions, resulting in medium or slight
injury, or may cause only material damage.
The level may even lead to a serious consequence
according to conditions. Both instruction levels must be followed
because these are important to personal safety.
•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 or wiring cover
removed.
Otherwise you may access the exposed high-voltage terminals
or the charging part of the circuitry and get an electric shock.
•Even if power is OFF, do not remove the front cover except for
wiring or periodic inspection. You may accidentally touch the
charged inverter circuits and get an electric shock.
•Before wiring, inspection or switching EMC filter ON/OFF
connector, power must be switched OFF. To confirm that, LED
indication of the operation panel must be checked. (It must be
OFF.) Any person who is involved in wiring, inspection or
switching EMC filter ON/OFF connector shall wait for at least 10
minutes after the power supply has been switched OFF and
check that there are no residual voltage using a tester or the like.
The capacitor is charged with high voltage for some time after
power OFF, and it is dangerous.
•This inverter must be earthed (grounded). Earthing (grounding)
must conform to the requirements of national and local safety
regulations and electrical code (NEC section 250, IEC 536 class
1 and other applicable standards).
A neutral-point earthed (grounded) power supply for 400V class
inverter in compliance with EN standard must be used.
•Any person who is involved in wiring or inspection of this
equipment shall be fully competent to do the work.
•The inverter must be installed before wiring. Otherwise you may
get an electric shock or be injured.
•Setting dial and key operations must be performed with dry
hands to prevent an electric shock. Otherwise you may get an
electric shock.
•Do not subject the cables to scratches, excessive stress, heavy
loads or pinching. Otherwise you may get an electric shock.
•Do not replace the cooling fan while power is ON. It is
dangerous to replace the cooling fan while power is ON.
•Do not touch the printed circuit board or handle the cables with
wet hands. Otherwise you may get an electric shock.
•When measuring the main circuit capacitor capacity (Pr. 259
Main circuit capacitor life measuring = "1"), the DC voltage is
applied to the motor for 1s at powering OFF. Never touch the
motor terminal, etc. right after powering OFF to prevent an
electric shock.
WARNING
CAUTION
CAUTION
WARNING
•Inverter must be installed on a nonflammable wall without holes (so
that nobody touches the inverter heatsink on the rear side, etc.).
Mounting it to or near flammable material can cause a fire.
•If the inverter has become faulty, the inverter power must be
switched OFF. A continuous flow of large current could cause a fire.
•Do not connect a resistor directly to the DC terminals P/+ and N/
-. Doing so could cause a fire.
•Daily and periodic inspections must be performed as instructed
in the Instruction Manual. If the product is used without receiving
any inspection, it may cause a burst, break, or fire.
•The voltage applied to each terminal must be the ones specified
in the Instruction Manual. Otherwise burst, damage, etc. may
occur.
•The cables must be connected to the correct terminals.
Otherwise burst, damage, etc. may occur.
•Polarity must be correct. Otherwise burst, damage, etc. may
occur.
•While power is ON or for some time after power-OFF, do not
touch the inverter since the inverter will be extremely hot. Doing
so can cause burns.
(1) Transportation and installation
•The product must be transported in correct method that
corresponds to the weight. Failure to do so may lead to injuries.
•Do not stack the boxes containing inverters higher than the
number recommended.
•The product must be installed to the position where withstands
the weight of the product according to the information in the
Instruction Manual.
•Do not install or operate the inverter if it is damaged or has parts
missing. This can result in breakdowns.
•When carrying the inverter, do not hold it by the front cover or
setting dial; it may fall off or fail.
•Do not stand or rest heavy objects on the product.
•The inverter mounting orientation must be correct.
•Foreign conductive objects must be prevented from entering the
inverter. That includes screws and metal fragments or other
flammable substance such as oil.
•As the inverter is a precision instrument, do not drop or subject it
to impact.
•The inverter must be used under the following environment:
Otherwise the inverter may be damaged.
CAUTION
CAUTION
CAUTION
Environment
Surrounding air
temperature
LD -10°C to +50°C (14°F to 122°F)
(non-freezing)
SLD
(initial setting)
-10°C to +40°C (14°F to 104°F)
(non-freezing)
Ambient humidity 90% RH or less (non-condensing)
Storage temperature -20°C to +65°C *1 (-4°F to 149°F)
Atmosphere Indoors (free from corrosive gas,
flammable gas, oil mist, dust and dirt)
Altitude, vibration
Maximum 1000m (3280.80feet) above
sea level for standard operation. After
that derate by 3% for every extra 500m
(1640.40feet) up to 2500m (8202feet)
(91%). 5.9m/s2or less *2 at 10 to 55Hz
(directions of X, Y, Z axes)
*1 Temperature applicable for a short time, e.g. in transit.
*2 2.9m/s2or less for the FR-F740-04320 or higher.

A-2
(2) Wiring
•Do not install a power factor correction capacitor, surge
suppressor or capacitor type filter on the inverter output side.
These devices on the inverter output side may be overheated or
burn out.
•The connection orientation of the output cables U, V, W to the
motor affects the rotation direction of the motor.
(3) Test operation and adjustment
•Before starting operation, each parameter must be confirmed and
adjusted. A failure to do so may cause some machines to make
unexpected motions.
(4) Operation
•Any person must stay away from the equipment when the retry
function is set as it will restart suddenly after trip.
•Since pressing key may not stop output depending on the
function setting status, separate circuit and switch that make an
emergency stop (power OFF, mechanical brake operation for
emergency stop, etc.) must be provided.
•OFF status of the start signal must be confirmed before resetting
the inverter fault. Resetting inverter alarm with the start signal
ON restarts the motor suddenly.
•The inverter must be used for three-phase induction motors.
Connection of any other electrical equipment to the inverter
output may damage the equipment.
•Do not modify the equipment.
•Do not perform parts removal which is not instructed in this
manual. Doing so may lead to fault or damage of the inverter.
•The electronic thermal relay function does not guarantee
protection of the motor from overheating. It is recommended to
install both an external thermal and PTC thermistor for overheat
protection.
•Do not use a magnetic contactor on the inverter input for frequent
starting/stopping of the inverter. Otherwise the life of the inverter
decreases.
•The effect of electromagnetic interference must be reduced by
using a noise filter or by other means. Otherwise nearby
electronic equipment may be affected.
•Appropriate measures must be taken to suppress harmonics.
Otherwise power supply harmonics from the inverter may heat/
damage the power factor correction capacitor and generator.
•When driving a 400V class motor by the inverter, the motor must
be an insulation-enhanced motor or measures must be taken to
suppress surge voltage. Surge voltage attributable to the wiring
constants may occur at the motor terminals, deteriorating the
insulation of the motor.
•When parameter clear or all parameter clear is performed, the
required parameters must be set again before starting operations
because all parameters return to the initial value.
•The inverter can be easily set for high-speed operation. Before
changing its setting, the performances of the motor and machine
must be fully examined.
•Stop status cannot be hold by the inverter's brake function. In
addition to the inverter's brake function, a holding device must be
installed to ensure safety.
•Before running an inverter which had been stored for a long
period, inspection and test operation must be performed.
•For prevention of damage due to static electricity, nearby metal
must be touched before touching this product to eliminate static
electricity from your body.
CAUTION
CAUTION
WARNING
CAUTION
(5) Emergency stop
•A safety backup such as an emergency brake must be provided
to prevent hazardous condition to the machine and equipment in
case of inverter failure.
•When the breaker on the inverter input side trips, the wiring must
be checked for fault (short circuit), and internal parts of the
inverter for a damage, etc. The cause of the trip must be
identified and removed before turning ON the power of the
breaker.
•When any protective function is activated, appropriate corrective
action must be taken, and the inverter must be reset before
resuming operation.
(6) Maintenance, inspection and parts replacement
•Do not carry out a megger (insulation resistance) test on the
control circuit of the inverter. It will cause a failure.
(7) Disposing of the inverter
•The inverter must be treated as industrial waste.
General instructions
Many of the diagrams and drawings in this Instruction Manual
show the inverter without a cover or partially open for explanation.
Never operate the inverter in this manner. The cover must be
always reinstalled and the instruction in this Instruction Manual
must be followed when operating the inverter.
CAUTION
CAUTION
CAUTION

I
CONTENTS
CONTENTS
1 OUTLINE 1
1.1 Product checking and parts identification ............................................................ 2
1.2 Inverter and peripheral devices.............................................................................. 3
1.2.1 Peripheral devices .......................................................................................................................... 4
1.3 Method of removal and reinstallation of the front cover...................................... 6
1.4 Installation of the inverter and enclosure design ................................................. 8
1.4.1 Inverter installation environment..................................................................................................... 8
1.4.2 Cooling system types for inverter enclosure................................................................................. 10
1.4.3 Inverter placement........................................................................................................................ 10
2 WIRING 13
2.1 Wiring...................................................................................................................... 14
2.1.1 Terminal connection diagram ....................................................................................................... 14
2.1.2 EMC filter...................................................................................................................................... 15
2.2 Main circuit terminal specifications ..................................................................... 16
2.2.1 Specification of main circuit terminal ............................................................................................ 16
2.2.2 Terminal arrangement of the main circuit terminal, power supply and the motor wiring .............. 16
2.2.3 Cables and wiring length .............................................................................................................. 21
2.2.4 When connecting the control circuit and the main circuit separately to the power supply............ 25
2.3 Control circuit specifications ............................................................................... 27
2.3.1 Control circuit terminals ................................................................................................................ 27
2.3.2 Changing the control logic ............................................................................................................ 30
2.3.3 Control circuit terminal layout ....................................................................................................... 32
2.3.4 Wiring instructions ........................................................................................................................ 33
2.3.5 Mounting the operation panel (FR-DU07) on the enclosure surface ............................................ 34
2.3.6 RS-485 terminal block .................................................................................................................. 35
2.3.7 Communication operation............................................................................................................. 35
2.4 Connection of stand-alone option units .............................................................. 36
2.4.1 Connection of the brake unit (FR-BU2) ........................................................................................ 36
2.4.2 Connection of the brake unit (FR-BU/MT-BU5) ............................................................................ 38
2.4.3 Connection of the brake unit (BU type) ........................................................................................ 40
2.4.4 Connection of the high power factor converter (FR-HC/MT-HC).................................................. 40
2.4.5 Connection of the power regeneration common converter (FR-CV)
(FR-F720-02330 (FR-F740-01160) or lower) ............................................................................... 42
2.4.6 Connection of the power regeneration converter (MT-RC)
(FR-F720-03160 (FR-F740-01800) or higher) .............................................................................. 43
2.4.7 Connection of the power factor improving DC reactor (FR-HEL) ................................................. 44
3 PRECAUTIONS FOR USE OF THE INVERTER 45

II
3.1 EMC and leakage currents .................................................................................... 46
3.1.1 Leakage currents and countermeasures ...................................................................................... 46
3.1.2 EMC measures............................................................................................................................. 48
3.1.3 Power supply harmonics............................................................................................................... 50
3.2 Installation of a reactor.......................................................................................... 51
3.3 Power-OFF and magnetic contactor (MC)............................................................ 51
3.4 Inverter-driven 400V class motor.......................................................................... 52
3.5 Precautions for use of the inverter....................................................................... 53
3.6 Failsafe of the system which uses the inverter................................................... 55
4 PARAMETERS 57
4.1 Operation panel (FR-DU07) ................................................................................... 58
4.1.1 Component of the operation panel (FR-DU07)............................................................................. 58
4.1.2 Basic operation (factory setting) ................................................................................................... 59
4.1.3 Easy operation mode setting (easy setting mode)........................................................................ 60
4.1.4 Changing the parameter setting value.......................................................................................... 61
4.1.5 Displaying the set frequency......................................................................................................... 61
4.2 Parameter list.......................................................................................................... 62
4.2.1 Parameter list................................................................................................................................ 62
4.3 Adjustment of the output torque (current) of the motor.................................... 78
4.3.1 Manual torque boost (Pr. 0, Pr. 46) ............................................................................................. 78
4.3.2 Simple magnetic flux vector control (Pr.80, Pr.90) ...................................................................... 79
4.3.3 Slip compensation (Pr. 245 to Pr. 247)........................................................................................ 80
4.3.4 Stall prevention operation
(Pr. 22, Pr. 23, Pr. 48, Pr. 49, Pr. 66, Pr. 148, Pr. 149, Pr. 154, Pr. 156, Pr. 157) ...................... 81
4.3.5 Multiple rating (Pr. 570) ............................................................................................................... 86
4.4 Limiting the output frequency.............................................................................. 87
4.4.1 Maximum/minimum frequency (Pr. 1, Pr. 2, Pr. 18)..................................................................... 87
4.4.2 Avoiding mechanical resonance points (Frequency jump) (Pr. 31 to Pr. 36)............................... 88
4.5 V/F pattern.............................................................................................................. 89
4.5.1 Base frequency, voltage (Pr. 3, Pr. 19, Pr. 47)............................................................................ 89
4.5.2 Load pattern selection (Pr. 14) .................................................................................................... 91
4.5.3 Adjustable 5 points V/F (Pr. 71, Pr. 100 to Pr. 109)..................................................................... 92
4.6 Frequency setting by external terminals ............................................................ 93
4.6.1 Multi-speed setting operation (Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239)....................... 93
4.6.2 Jog operation (Pr. 15, Pr. 16) ...................................................................................................... 95
4.6.3 Input compensation of multi-speed and remote setting (Pr. 28) .................................................. 97
4.6.4 Remote setting function (Pr. 59) .................................................................................................. 98

III
CONTENTS
4.7 Setting of acceleration/deceleration time and
acceleration/deceleration pattern..................................................................... 101
4.7.1 Setting of the acceleration and deceleration time
(Pr. 7, Pr. 8, Pr. 20, Pr. 21, Pr. 44, Pr. 45, Pr. 147) .................................................................. 101
4.7.2 Starting frequency and start-time hold function (Pr. 13, Pr. 571) .............................................. 104
4.7.3 Acceleration/deceleration pattern (Pr. 29, Pr. 140 to Pr. 143)................................................... 105
4.8 Selection and protection of a motor ................................................................. 107
4.8.1 Motor protection from overheat (Electronic thermal relay function)
(Pr. 9, Pr. 51, Pr. 561, Pr. 986).................................................................................................. 107
4.8.2 Applied motor (Pr. 71) ............................................................................................................... 112
4.9 Motor brake and stop operation ........................................................................ 113
4.9.1 DC injection brake (Pr. 10 to Pr. 12).......................................................................................... 113
4.9.2 Selection of a regenerative brake and DC feeding (Pr. 30, Pr. 70) ........................................... 115
4.9.3 Stop selection (Pr. 250) ............................................................................................................. 121
4.9.4 Output stop function (Pr. 522) ................................................................................................... 122
4.10 Function assignment of external terminal and control ................................... 124
4.10.1 Input terminal function selection (Pr. 178 to Pr. 189) ................................................................ 124
4.10.2 Inverter output shutoff signal (MRS signal, Pr. 17).................................................................... 126
4.10.3 Condition selection of function validity by the second function selection
signal (RT) (RT signal, Pr. 155) ................................................................................................. 127
4.10.4 Start signal selection (STF, STR, STOP signal, Pr. 250) .......................................................... 128
4.10.5 Output terminal function selection (Pr. 190 to Pr. 196).............................................................. 130
4.10.6 Detection of output frequency (SU, FU, FU2 signal, Pr. 41 to Pr. 43, Pr. 50, Pr. 870).............. 135
4.10.7 Output current detection function
(Y12 signal, Y13 signal, Pr. 150 to Pr. 153, Pr. 166, Pr. 167) ................................................... 137
4.10.8 Remote output function (REM signal, Pr. 495 to Pr. 497) ......................................................... 139
4.10.9 Pulse train output of output power (Y79 signal, Pr. 799) ........................................................... 140
4.11 Monitor display and monitor output signal ...................................................... 141
4.11.1 Speed display and speed setting (Pr. 37, Pr. 144, Pr. 505) ...................................................... 141
4.11.2 DU/PU monitor display selection
(Pr. 52, Pr. 54, Pr. 158, Pr. 170, Pr. 171, Pr. 268, Pr. 563, Pr. 564, Pr. 891)............................ 143
4.11.3 CA, AM terminal function selection (Pr.55, Pr.56, Pr.867, Pr.869) ............................................ 149
4.11.4 Terminal CA, AM calibration
(Calibration parameter C0 (Pr. 900), C1 (Pr. 901), C8 (Pr.930) to C11 (Pr. 931)) .................... 151
4.11.5 How to calibrate the terminal CA when using the operation panel (FR-DU07) ......................... 153
4.12 Operation selection at power failure and instantaneous power failure......... 154
4.12.1 Automatic restart after instantaneous power failure / flying start
(Pr. 57, Pr. 58, Pr. 162 to Pr. 165, Pr. 299, Pr. 611).................................................................. 154
4.12.2 Power failure signal (Y67 signal) ............................................................................................... 157
4.12.3 Power failure-time deceleration-to-stop function (Pr. 261 to Pr. 266 )....................................... 158
4.13 Operation setting at fault occurrence ............................................................... 161
4.13.1 Retry function (Pr. 65, Pr. 67 to Pr. 69) ..................................................................................... 161
4.13.2 Fault code output selection (Pr. 76)........................................................................................... 163

IV
4.13.3 Input/output phase loss protection selection (Pr. 251, Pr. 872) ................................................. 164
4.14 Energy saving operation and energy saving monitor ..................................... 165
4.14.1 Energy saving control and Optimum excitation control (Pr. 60)................................................. 165
4.14.2 Energy saving monitor (Pr. 891 to Pr. 899) ............................................................................... 166
4.15 Motor noise, EMI measures, mechanical resonance ....................................... 171
4.15.1 PWM carrier frequency and Soft-PWM control (Pr. 72, Pr. 240, Pr. 260).................................. 171
4.15.2 Speed smoothing control (Pr. 653, Pr. 654) .............................................................................. 172
4.16 Frequency setting by analog input (terminal 1, 2, 4) ....................................... 173
4.16.1 Analog input selection (Pr. 73, Pr. 267) ..................................................................................... 173
4.16.2 Analog input compensation (Pr. 73, Pr. 242, Pr. 243, Pr. 252, Pr. 253) .................................... 177
4.16.3 Response level of analog input and noise elimination (Pr. 74).................................................. 178
4.16.4 Bias and gain of frequency setting voltage (current)
(Pr. 125, Pr. 126, Pr. 241, C2(Pr. 902) to C7(Pr. 905)) ............................................................. 179
4.16.5 4mA input check of current input (Pr. 573, Pr. 777, Pr. 778) ..................................................... 184
4.17 Misoperation prevention and parameter setting restriction ........................... 188
4.17.1 Reset selection/disconnected PU detection/PU stop selection (Pr. 75) .................................... 188
4.17.2 Parameter write selection (Pr. 77) ............................................................................................. 191
4.17.3 Reverse rotation prevention selection (Pr. 78) .......................................................................... 192
4.17.4 Display of applied parameters and user group function (Pr. 160, Pr. 172 to Pr. 174) ............... 192
4.17.5 Password function (Pr. 296, Pr. 297)......................................................................................... 194
4.18 Selection of operation mode and operation location ...................................... 197
4.18.1 Operation mode selection (Pr. 79)............................................................................................. 197
4.18.2 Operation mode at power ON (Pr. 79, Pr. 340) ......................................................................... 205
4.18.3 Start command source and speed command source during
communication operation (Pr. 338, Pr. 339, Pr. 550, Pr. 551)................................................... 206
4.19 Communication operation and setting.............................................................. 211
4.19.1 Wiring and configuration of PU connector ................................................................................. 211
4.19.2 Wiring and configuration of RS-485 terminals ........................................................................... 213
4.19.3 Initial settings and specifications of RS-485 communication
(Pr. 117 to Pr. 124, Pr. 331 to Pr. 337, Pr. 341, Pr. 549)........................................................... 216
4.19.4 Communication EEPROM write selection (Pr. 342) .................................................................. 218
4.19.5 Operation selection at communication error (Pr.502, Pr.779) ................................................... 218
4.19.6 Mitsubishi inverter protocol (computer link communication) ...................................................... 221
4.19.7 Modbus-RTU communication specifications
(Pr. 331, Pr. 332, Pr. 334, Pr. 343, Pr. 502, Pr. 539, Pr. 549, Pr.779)....................................... 234
4.19.8 BACnet MS/TP protocol............................................................................................................. 249
4.19.9 Operation by PLC function
(Pr. 414, Pr. 415, Pr. 498, Pr. 506 to Pr. 515, Pr. 826 to Pr. 865) ............................................. 262
4.20 PID control ........................................................................................................... 263
4.20.1 Outline of PID control (Pr. 127 to Pr. 134, Pr. 241, Pr. 553, Pr. 554,
Pr. 575 to Pr. 577) ..................................................................................................................... 263
4.20.2 Bias and gain calibration for PID displayed values
(Pr. 241, Pr. 759, C42(Pr. 934) to C45(Pr. 935)) ....................................................................... 275

V
CONTENTS
4.20.3 Pre-charge function (Pr.760 to Pr. 769)..................................................................................... 277
4.20.4 Second PID function (Pr.753 to Pr. 758, Pr.765 to Pr.769) ....................................................... 282
4.20.5 Advanced PID function (pump function) (Pr. 554, Pr. 575 to Pr. 591) ....................................... 284
4.21 Special operation and frequency control ......................................................... 294
4.21.1 Bypass-inverter switchover function (Pr. 57, Pr. 58, Pr. 135 to Pr. 139, Pr. 159)...................... 294
4.21.2 Regeneration avoidance function (Pr. 665, Pr. 882 to Pr. 886)................................................. 299
4.22 Useful functions.................................................................................................. 301
4.22.1 Cooling fan operation selection (Pr. 244) .................................................................................. 301
4.22.2 Display of the life of the inverter parts (Pr. 255 to Pr .259)........................................................ 302
4.22.3 Maintenance timer alarm (Pr. 503, Pr. 504) .............................................................................. 305
4.22.4 Current average value monitor signal (Pr. 555 to Pr. 557) ........................................................ 306
4.22.5 Free parameter (Pr. 888, Pr. 889) ............................................................................................. 308
4.22.6 Initiating a fault (Pr.997) ............................................................................................................ 309
4.22.7 Setting multiple parameters as a batch (Pr.999) ....................................................................... 310
4.23 Setting from the parameter unit, operation panel............................................ 316
4.23.1 PU display language selection (Pr. 145) ................................................................................... 316
4.23.2 Setting dial potentiometer mode/key lock selection (Pr. 161).................................................... 316
4.23.3 Buzzer control (Pr. 990)............................................................................................................. 318
4.23.4 PU contrast adjustment (Pr. 991) .............................................................................................. 318
4.24 Setting of FR-PU07-01 ........................................................................................ 319
4.24.1 PID display bias/gain setting menu ........................................................................................... 320
4.24.2 Unit selection for the PID parameter/PID monitored items (Pr. 759)......................................... 321
4.24.3 PID set point direct setting menu............................................................................................... 322
4.24.4 3-line monitor selection (Pr. 774 to Pr.776) ............................................................................... 323
4.25 Parameter clear ................................................................................................... 324
4.26 All parameter clear.............................................................................................. 325
4.27 Parameter copy and parameter verification ..................................................... 326
4.27.1 Parameter copy ......................................................................................................................... 326
4.27.2 Parameter verification................................................................................................................ 327
4.28 Initial value change list ...................................................................................... 328
4.29 Check and clear of the faults history ................................................................ 329
5 PROTECTIVE FUNCTIONS 331
5.1 Reset method of protective function ................................................................. 332
5.2 List of fault or alarm display ............................................................................... 333
5.3 Causes and corrective actions ........................................................................... 334
5.4 Correspondences between digital and actual characters ............................... 346

VI
5.5 Check first when you have a trouble.................................................................. 347
5.5.1 Motor does not start.................................................................................................................... 347
5.5.2 Motor or machine is making abnormal acoustic noise................................................................ 349
5.5.3 Inverter generates abnormal noise ............................................................................................. 349
5.5.4 Motor generates heat abnormally ............................................................................................... 349
5.5.5 Motor rotates in the opposite direction........................................................................................ 350
5.5.6 Speed greatly differs from the setting ......................................................................................... 350
5.5.7 Acceleration/deceleration is not smooth ..................................................................................... 350
5.5.8 Speed varies during operation.................................................................................................... 351
5.5.9 Operation mode is not changed properly.................................................................................... 351
5.5.10 Operation panel (FR-DU07) display is not operating.................................................................. 352
5.5.11 Motor current is too large............................................................................................................ 352
5.5.12 Speed does not accelerate ......................................................................................................... 353
5.5.13 Unable to write parameter setting............................................................................................... 353
5.5.14 Power lamp is not lit.................................................................................................................... 353
6 PRECAUTIONS FOR MAINTENANCE AND INSPECTION 355
6.1 Inspection item ..................................................................................................... 356
6.1.1 Daily inspection........................................................................................................................... 356
6.1.2 Periodic inspection...................................................................................................................... 356
6.1.3 Daily and periodic inspection ...................................................................................................... 357
6.1.4 Display of the life of the inverter parts ........................................................................................ 358
6.1.5 Checking the inverter and converter modules ............................................................................ 358
6.1.6 Cleaning...................................................................................................................................... 358
6.1.7 Replacement of parts.................................................................................................................. 359
6.1.8 Inverter replacement................................................................................................................... 362
6.2 Measurement of main circuit voltages, currents and powers.......................... 363
6.2.1 Measurement of voltages and currents ...................................................................................... 363
6.2.2 Measurement of powers ............................................................................................................. 365
6.2.3 Measurement of voltages and use of PT .................................................................................... 365
6.2.4 Measurement of currents............................................................................................................ 366
6.2.5 Use of CT and transducer........................................................................................................... 366
6.2.6 Measurement of inverter input power factor ............................................................................... 366
6.2.7 Measurement of converter output voltage (across terminals P/+ and N/-) ............................... 367
6.2.8 Insulation resistance test using megger ..................................................................................... 367
6.2.9 Pressure test............................................................................................................................... 367
7 SPECIFICATIONS 369
7.1 Rating .................................................................................................................... 370
7.2 Common specifications....................................................................................... 372
7.3 Outline dimension drawings ............................................................................... 374

VII
CONTENTS
7.4 Heatsink protrusion attachment procedure ...................................................... 384
7.4.1 When using a heatsink protrusion attachment (FR-A7CN) ........................................................ 384
7.4.2 Protrusion of heatsink of the FR-F740-04320 or higher ............................................................. 384
APPENDICES 387
Appendix 1 For customers who are replacing the conventional model
with this inverter..................................................................................... 388
Appendix 1-1 Replacement of the FR-F500 series .............................................................................. 388
Appendix 1-2 Replacement of the FR-A100 <EXCELENT> series ...................................................... 389
Appendix 2 Parameter clear, parameter copy and instruction code list ............... 390
Appendix 3 Specification change ............................................................................. 399
Appendix 3-1 SERIAL number check ................................................................................................... 399
Appendix 3-2 Changed functions ......................................................................................................... 399

1
3
4
5
6
7
1
2
1 OUTLINE
This chapter describes the basic "OUTLINE" for use of this
product.
Always read the instructions before using the equipment.
1.1 Product checking and parts identification ............... 2
1.2 Inverter and peripheral devices .............................. 3
1.3 Method of removal and reinstallation of the front
cover....................................................................... 6
1.4 Installation of the inverter and enclosure design .... 8
<Abbreviations>
DU ............................................Operation panel (FR-DU07)
PU.................................................. Operation panel (FR-DU07) and parameter unit (FR-PU04/FR-
PU07(-01))
Inverter .....................................Mitsubishi inverter FR-F700 series
FR-F700 ...................................Mitsubishi inverter FR-F700 series
Pr. .............................................Parameter Number (Number assigned to function)
PU operation ............................. Operation using the PU (FR-DU07/FR-PU04/FR-PU07(-01)).
External operation ....................Operation using the control circuit signals
Combined operation .................Combined operation using the PU (FR-DU07/FR-PU04/FR-
PU07(-01)) and external operation.
Mitsubishi standard motor ........SF-JR
Mitsubishi constant-torque motor ...SF-HRCA
<Trademarks>
• Microsoft and Visual C++ are registered trademarks of Microsoft Corporation in the United
States and/or other countries.
•L
ONWORKS®is a registered trademark of Echelon Corporation in the U.S.A and other
countries.
• DeviceNetTM is a registered trademark of ODVA (Open DeviceNet Vender Association, Inc.).
• BACnet®is a registered trademark of American Society of Heating, Refrigerating and
Air-Conditioning Engineers (ASHRAE).
• Other company and product names herein are the trademarks and registered trademarks of
their respective owners.

2
Product checking and parts identification
1.1 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.
Operation panel (FR-DU07)
Front cover
EMC filter ON/OFF connector
Control circuit
terminal block
AU/PTC switchover switch
Main circuit terminal block Charge lamp
Lit when power is
supplied to the main
circuit
Power lamp
Lit when the control circuit
(R1/L11, S1/L21) is supplied
with power.
Cooling fan
PU connector
RS-485 terminals
Alarm lamp
Lit when the inverter is
in the alarm status
(fault).
Capacity plate
Inverter model Serial number
Capacity plate
Rating plate
Voltage/current input switch
Connector for plug-in option connection
(Refer to the Instruction Manual of options.)
There are two connection connectors, and they are
called connector 1 and connector 2 from the top.
00126
FR-F740-00126-NA
- NA
FR --F740
Symbol
F720
Voltage Class
Three-phase 200V class
F740 Three-phase 400V class
Symbol
200V class
00046
to
04750
Represents the rated
current
Model Number
400V class
00023
to
12120
Rating plate
Inverter model
Input rating
Output rating
Serial number
FR-F740-00126-NA
LD (50 C) XXA
SLD (40 C) XXA
• Inverter Model
wiring cover
Surrounding Air
Temperature
LD 120% 60s, 150% 3s 50 C (122 F)
SLD 110% 60s, 120% 3s 40 C (104 F)
Overload Current Rating
Production year and month
(Refer to page 34)
(Refer to page 6)
(Refer to page 15)
(Refer to page 16)
(Refer to page 359)
(Refer to page 35)
(Refer to page 110)
(Refer to page 27)
(Refer to page 20)
(Refer to page 6)
(Refer to page 16)
•Accessory
· Fan cover fixing screws (FR-F720-01250
(FR-F740-00620) or lower) (Refer to the Installation
Guideline)
Capacity Screw Size (mm) Number
200V
00105 to 00250 M3 × 35 1
00340 to 00630 M4 × 40 2
00770 to 01250 M4 × 50 1
400V
00083, 00126 M3 × 35 1
00170 to 00380 M4 × 40 2
00470, 00620 M4 × 50 1
· DC reactor supplied (FR-F720-03160 (FR-F740-
01800) or higher)
· Eyebolt for hanging the inverter (FR-F720-01540
to 04750, FR-F740-00770 to 06830)
Model Eyebolt Size Number
200V
01540 M8 2
01870 to 04750 M10 2
400V
00770 M8 2
00930 to 03610 M10 2
04320 to 06830 M12 2
(Refer to page 14, 173)
REMARKS
·For removal and reinstallation of covers, refer to page 6.
·For how to find the SERIAL number, refer to page 399.
... Specifications differ according to the date assembled. Refer to page 399 to check
the SERIAL number.

3
Inverter and peripheral devices
1
OUTLINE
1.2 Inverter and peripheral devices
CAUTION
· Do not install a power factor correction capacitor, surge suppressor or capacitor type filter on the inverter output side. This will
cause the inverter to trip or the capacitor, and surge suppressor to be damaged. If any of the above devices are connected,
immediately remove them.
· Electromagnetic wave interference
The input/output (main circuit) of the inverter includes high frequency components, which may interfere with the communication
devices (such as AM radios) used near the inverter. In this case, set the EMC filter valid to minimize interference.
(Refer topage 15.)
· Refer to the Instruction Manual of each option and peripheral devices for details of peripheral devices.
Power regeneration
common converter
(FR-CV
*1 )
Power regeneration
converter (MT-RC
*2 )
Resistor unit
(FR-BR
*1 , MT-BR5 *2 )
Brake unit
(FR-BU2, FR-BU
*1 , MT-BU5 *2 )
High power factor
converter
(FR-HC
*1 , MT-HC *2 )
P/+
P/+
PR
PR
PULL
USB
MODE
RUN
ERR
USER
BAT
BOOT
PULL
POWER RUN
T.PASS
SD
ERR
MNG
D.LINK
RD
ERR
RUN
T.PASS
SD
ERR
MNG
D.LINK
RD
ERR
Programmable
controller
Human machine
interface
Three-phase AC power supply
AC reactor
(FR-HAL)
DC reactor
(FR-HEL)
R/L1 S/L2 T/L3
P/+ N/-P/+ P1 UVW
Moulded case circuit
breaker (MCCB)
or earth leakage circuit
breaker (ELB), fuse
Magnetic contactor (MC)
RS-485 terminal block
Noise filter
(ferrite core)
(FR-BSF01, FR-BLF)
Motor
Devices connected to the output
Use within the permissible power supply
specifications of the inverter.
The regeneration braking
capability of the inverter can be
exhibited fully.
Install this as required.
Install the magnetic contactor to ensure safety.
Do not use this magnetic contactor to start and
stop the inverter.
Doing so will cause the inverter life to be
shortened.
The inverter can be connected
with a computer such as a
programmable controller and
with GOT (human machine
interface).
It supports Mitsubishi inverter
protocol, Modbus-RTU (binary)
protocol and BACnet MS/TP
protocol.
Do not install a power factor correction capacitor,
surge suppressor or noise filter (capacitor) on the
output side of the inverter.
When installing a moulded case circuit breaker on the
output side of the inverter, contact each manufacturer
for selection of the moulded case circuit breaker.
Power supply harmonics
can be greatly suppressed.
Install this as required.
Greater braking capability
is obtained.
Install this as required.
The breaker must be selected carefully since
an in-rush current flows in the inverter at
power ON.
Install a noise filter (ferrite
core) to reduce the
electromagnetic noise
generated from the inverter.
Effective in the range from
about 0.5MHz to 5MHz.
A wire should be wound four
turns at a maximum.
: Install these options as required.
Earth
(Ground)
Earth
(Ground)
Earth (Ground)
To prevent an electric shock, always earth (ground)
the motor and inverter.
For the FR-F720-03160 (FR-
F740-01800) or higher, a DC
reactor is supplied.
Always install the reactor.
*1 Compatible with the FR-F720-02330 (FR-F740-01160) or lower.
*2 Compatible with the FR-F720-03160 (FR-F740-01800) or higher.
Reactor (FR-HAL, FR-HEL)
Install reactors to suppress harmonics and to
improve the power factor. An AC reactor (FR-HAL)
(option) is required when installing the inverter near
a large power supply system (1000kVA or more).
The inverter may be damaged if you do not use
reactors.
Select the reactor according to the model.
For the FR-F720-02330 (FR-F740-01160) or lower,
remove the jumpers across terminals P/+ and P1 to
connect to the DC reactor.
Noise filter
(ferrite core)
(FR-BLF)
The FR-F720-02330
(FR-F740-01160) or
lower has a built-in
common mode choke.
(Refer to page 370)
(Refer to page 4)
(Refer to page 4)
(Refer to page 4 )
Inverter
(FR-F700)
The life of the inverter is influenced by surrounding air
temperature. The surrounding air temperature should be
as low as possible within the permissible range. This must
be noted especially when the inverter is installed in an
enclosure. (Refer to page 10)
Wrong wiring might lead to damage of the inverter. The
control signal lines must be kept fully away from the main
circuit to protect them from noise. (Refer to page 14)
Refer to page 15 for the built-in EMC filter.

4
Inverter and peripheral devices
1.2.1 Peripheral devices
Check the inverter model 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
Motor
Output
(kW(HP))
*1
Applicable Inverter
Model
Moulded Case Circuit Breaker
(MCCB) *2 or Earth Leakage Circuit
Breaker (ELB)
Input Side Magnetic Contactor*3
Power factor improving
(AC or DC) reactor
Power factor improving
(AC or DC) reactor
Without with Without with
0.75 (1) FR-F720-00046-NA 10A 10A S-N10 S-N10
1.5 (2) FR-F720-00077-NA 15A 15A S-N10 S-N10
2.2 (3) FR-F720-00105-NA 20A 15A S-N10 S-N10
3.7 (5) FR-F720-00167-NA 30A 30A S-N20, S-N21 S-N10
5.5 (7.5) FR-F720-00250-NA 50A 40A S-N25 S-N20, S-N21
7.5 (10) FR-F720-00340-NA 60A 50A S-N25 S-N25
11 (15) FR-F720-00490-NA 75A 75A S-N35 S-N35
15 (20) FR-F720-00630-NA 125A 100A S-N50 S-N50
18.5 (25) FR-F720-00770-NA 150A 125A S-N65 S-N50
22 (30) FR-F720-00930-NA 175A 150A S-N80 S-N65
30 (40) FR-F720-01250-NA 225A 175A S-N95 S-N80
37 (50) FR-F720-01540-NA 250A 225A S-N150 S-N125
45 (60) FR-F720-01870-NA 300A 300A S-N180 S-N150
55 (75) FR-F720-02330-NA 400A 350A S-N220 S-N180
75 (100) FR-F720-03160-NA ⎯400A ⎯S-N300
90 (125) FR-F720-03800-NA ⎯400A ⎯S-N300
110 (150) FR-F720-04750-NA ⎯500A ⎯S-N400
*1 Selections for use of the Mitsubishi 4-pole standard motor with power supply voltage of 200VAC 50Hz.
*2 Select the MCCB according to the power supply capacity.
Install one MCCB per inverter.
For installation in the United States or Canada, select a fuse in accordance with UL, cUL, the National
Electrical Code and any applicable local codes, or use UL 489 Molded Case Circuit Breaker (MCCB).
(Refer to the Installation Guideline.)
*3 Magnetic contactor is selected based on the AC-1 class. The electrical durability of magnetic contactor is 500,000 times. When the magnetic
contactor is used for emergency stop during motor driving, the electrical durability is 25 times.
If using an MC for emergency stop during motor driving, select an MC regarding the inverter input side current as JEM1038-AC-3 class rated
current. When using an MC on the inverter output side for commercial-power supply operation switching using a general purpose motor, select an
MC regarding the motor rated current as JEM1038-AC-3 class rated current.
CAUTION
⋅When the inverter capacity is larger than the motor capacity, select an MCCB and a magnetic contactor according to the inverter
model and cable and reactor according to the motor output.
⋅When the breaker on the inverter primary side trips, check for the wiring fault (short circuit), damage to internal parts of the
inverter, etc. Identify the cause of the trip, then remove the cause and power ON the breaker.
MCCB INV
MCCB INV
IM
IM

5
Inverter and peripheral devices
1
OUTLINE
400V class
Motor
Output
(kW(HP))
*1
Applicable Inverter
Model
Moulded Case Circuit Breaker
(MCCB) *2 or Earth Leakage Circuit
Breaker (ELB)
Input Side Magnetic Contactor*3
Power factor improving
(AC or DC) reactor
Power factor improving
(AC or DC) reactor
Without with Without with
0.75 (1) FR-F740-00023-NA 5A 5A S-N10 S-N10
1.5 (2) FR-F740-00038-NA 10A 10A S-N10 S-N10
2.2 (3) FR-F740-00052-NA 10A 10A S-N10 S-N10
3.7 (5) FR-F740-00083-NA 20A 15A S-N10 S-N10
5.5 (7.5) FR-F740-00126-NA 30A 20A S-N20, S-N21 S-N11, S-N12
7.5 (10) FR-F740-00170-NA 30A 30A S-N20, S-N21 S-N20, S-N21
11 (15) FR-F740-00250-NA 50A 40A S-N20, S-N21 S-N20, S-N21
15 (20) FR-F740-00310-NA 60A 50A S-N25 S-N20, S-N21
18.5 (25) FR-F740-00380-NA 75A 60A S-N25 S-N25
22 (30) FR-F740-00470-NA 100A 75A S-N35 S-N25
30 (40) FR-F740-00620-NA 125A 100A S-N50 S-N50
37 (50) FR-F740-00770-NA 150A 125A S-N65 S-N50
45 (60) FR-F740-00930-NA 175A 150A S-N80 S-N65
55 (75) FR-F740-01160-NA 200A 175A S-N80 S-N80
75 (100) FR-F740-01800-NA ⎯225A ⎯S-N95
90 (125) FR-F740-01800-NA ⎯225A ⎯S-N150
110 (150) FR-F740-02160-NA ⎯225A ⎯S-N180
132 (200) FR-F740-02600-NA ⎯400A ⎯S-N220
160 (250) FR-F740-03250-NA ⎯400A ⎯S-N300
185 (300) FR-F740-03610-NA ⎯400A ⎯S-N300
220 (350) FR-F740-04320-NA ⎯500A ⎯S-N400
250 (400) FR-F740-04810-NA ⎯600A ⎯S-N600
280 (450) FR-F740-05470-NA ⎯600A ⎯S-N600
315 (500) FR-F740-06100-NA ⎯700A ⎯S-N600
355 (550) FR-F740-06830-NA ⎯800A ⎯S-N600
400 (600) FR-F740-07700-NA ⎯900A ⎯S-N800
450 (700) FR-F740-08660-NA ⎯1000A ⎯1000A
Rated product
500 (750) FR-F740-09620-NA ⎯1200A ⎯1000A
Rated product
560 (800) FR-F740-10940-NA ⎯1500A ⎯1200A
Rated product
630 (850) FR-F740-12120-NA ⎯2000A ⎯1400A
Rated product
*1 Selections for use of the Mitsubishi 4-pole standard motor with power supply voltage of 400VAC 50Hz.
*2 Select the MCCB according to the power supply capacity. Install one MCCB per inverter.
For installation in the United States or Canada, select a fuse in accordance with UL, cUL, the National
Electrical Code and any applicable local codes, or use UL 489 Molded Case Circuit Breaker (MCCB).
(Refer to the Installation Guideline.)
*3 Magnetic contactor is selected based on the AC-1 class. The electrical durability of magnetic contactor is 500,000 times. When the magnetic
contactor is used for emergency stop during motor driving, the electrical durability is 25 times.
If using an MC for emergency stop during motor driving, select an MC regarding the inverter input side current as JEM1038-AC-3 class rated
current. When using an MC on the inverter output side for commercial-power supply operation switching using a general purpose motor, select an
MC regarding the motor rated current as JEM1038-AC-3 class rated current.
CAUTION
⋅When the inverter capacity is larger than the motor capacity, select an MCCB and a magnetic contactor according to the inverter
model and cable and reactor according to the motor output.
⋅When the breaker on the inverter primary side trips, check for the wiring fault (short circuit), damage to internal parts of the
inverter, etc. Identify the cause of the trip, then remove the cause and power ON the breaker.
MCCB INV
MCCB INV
IM
IM

6
Method of removal and reinstallation of the
front cover
1.3 Method of removal and reinstallation of the front cover
•Removal of the operation panel
1) Loosen the two screws on the operation panel.
(These screws cannot be removed.)
2) Push the left and right hooks of the operation panel
and pull the operation panel toward you to remove.
When reinstalling the operation panel, insert it straight to reinstall securely and tighten the fixed screws of the
operation panel. (Tightening torque: 0.40N⋅m to 0.45N⋅m)
FR-F720-01250-NA or lower, FR-F740-00620-NA or lower
•Removal
•Reinstallation
Installation hook
Front cover Front cover
1) Loosen the installation screws of the
front cover.
2) Pull the front cover toward you to remove by pushing an
installation hook using left fixed hooks as supports.
Front cover Front cover
Front cover
1) Insert the two fixed hooks on the left side of
the front cover into the sockets of the
inverter.
2) Using the fixed hooks as supports,
securely press the front cover
against the inverter.
(Although installation can be done
with the operation panel mounted,
make sure that a connector is
securely fixed.)
3) Tighten the installation
screws and fix the front
cover.

7
Method of removal and reinstallation of the
front cover
1
OUTLINE
FR-F720-01540-NA or higher, FR-F740-00770-NA or higher
•Removal
•Reinstallation
CAUTION
1. Fully make sure that the front cover has been reinstalled securely. Always tighten the installation screws of the front cover.
2. The same serial number is printed on the capacity plate of the front cover and the rating plate of the inverter. Before reinstalling the
front cover, check the serial numbers to ensure that the cover removed is reinstalled to the inverter from where it was removed.
Front cover 2
Front cover 1
Installation hook
1) Remove installation screws on
the front cover 1 to remove the
front cover 1.
2) Loosen the installation
screws of the front cover 2.
3) Pull the front cover 2 toward you to
remove by pushing an installation
hook on the right side using left
fixed hooks as supports.
Front cover 2 Front cover 2
Front cover 2
Front cover 1
1) Insert the two fixed hooks on the left side of the
front cover 2 into the sockets of the inverter.
2) 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.)
3) Fix the front cover 2 with the
installation screws.
4) Fix the front cover 1 with the
installation screws.
REMARKS
⋅For the FR-F740-04320 or higher, the front cover 1 is separated into two parts.

8
Installation of the inverter and
enclosure design
1.4 Installation of the inverter and 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. To ensure higher reliability and long period of
operation, operate the inverter in the ambient environment that completely satisfies the equipment specifications.
1.4.1 Inverter installation environment
As the inverter installation environment should satisfy the standard specifications indicated in the following table,
operation in any place that does not meet these conditions not only deteriorates the performance and life of the
inverter, but also causes a failure. Refer to the following points and take adequate measures.
* 2.9m/s2or less for the FR-F740-04320 or higher.
(1) Temperature
The permissible surrounding air temperature of the inverter is -10°C (14°F) to +50°C (122°F) (when LD is set) or -10°C
(14°F) to +40°C (104°F) (when SLD is set). Always operate the inverter within this temperature range. Operation outside
this range will considerably shorten the service lives of the semiconductors, parts, capacitors and others. Take the
following measures so that the surrounding air temperature of the inverter falls within the specified range.
1) Measures against high temperature
• Use a forced ventilation system or similar cooling system. (Refer to page 10.)
• Install the enclosure in an air-conditioned electrical chamber.
• Block direct sunlight.
• Provide a shield or similar plate to avoid direct exposure to the radiated heat and wind of a heat source.
• Ventilate the area around the enclosure well.
2) Measures against low temperature
• Provide a space heater in the enclosure.
• Do not power OFF the inverter. (Keep the start signal of the inverter OFF.)
3) Sudden temperature changes
• Select an installation place where temperature does not change suddenly.
• Avoid installing the inverter near the air outlet of an air conditioner.
• If temperature changes are caused by opening/closing of a door, install the inverter away from the door.
(2) Humidity
Normally operate the inverter within the 45 to 90% range of the ambient humidity. Too high humidity will pose problems
of reduced insulation and metal corrosion. On the other hand, too low humidity may produce a spatial electrical
breakdown. The insulation distance specified in JEM1103 "Control Equipment Insulator" is defined as humidity 45 to
85%.
1) Measures against high humidity
• Make the enclosure enclosed, and provide it with a hygroscopic agent.
• Take dry air into the enclosure from outside.
• Provide a space heater in the enclosure.
2) Measures against low humidity
What is important in fitting or inspection of the unit in this status is to discharge your body (static electricity)
beforehand and keep your body from contact with the parts and patterns, besides blowing air of proper humidity into
the enclosure from outside.
3) Measures against condensation
Condensation may occur if frequent operation stops change the in-enclosure temperature suddenly or if the outside-
air temperature changes suddenly.
Condensation causes such faults as reduced insulation and corrosion.
• Take the measures against high humidity in 1).
• Do not power OFF the inverter. (Keep the start signal of the inverter OFF.)
Environmental standard specifications of inverter
Item Description
Surrounding air temperature LD -10 to +50°C (14°F to 122°F) (non-freezing)
SLD(Initial setting) -10 to +40°C (14°F to 104°F) (non-freezing)
Ambient humidity 90% RH maximum (non-condensing)
Atmosphere Indoors (free from corrosive gas, flammable gas, oil mist, dust and dirt)
Maximum Altitude 1,000m (3280.80 feet) or less
Vibration 5.9m/s2or less * at 10 to 55Hz (directions of X, Y, Z axes)

9
Installation of the inverter and
enclosure design
1
OUTLINE
(3) Dust, dirt, oil mist
Dust and dirt will cause such faults as poor contact of contact points, reduced insulation or reduced cooling effect due
to moisture absorption of accumulated dust and dirt, and in-enclosure temperature rise due to clogged filter.
In the atmosphere where conductive powder floats, dust and dirt will cause such faults as malfunction, deteriorated
insulation and short circuit in a short time.
Since oil mist will cause similar conditions, it is necessary to take adequate measures.
Countermeasures
• Place in a totally enclosed enclosure.
Take measures if the in-enclosure temperature rises. (Refer to page 10.)
• Purge air.
Pump clean air from outside to make the in-enclosure pressure higher than the outside-air pressure.
(4) Corrosive gas, salt damage
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 given in Section (3).
(5) 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).
The best way is to avoid installation in such places and install the inverter in a non-hazardous place.
(6) Highland
Use the inverter at the altitude of within 1000m (3280.80 feet).
If it is used at a higher place, it is likely that thin air will reduce the cooling effect and low air pressure will deteriorate
dielectric strength.
(7) Vibration, impact
The vibration resistance of the inverter is up to 5.9m/s2 (2.9m/s2for the FR-F740-04320 or higher) at 10 to 55Hz
frequency (directions of X, Y, Z axes) and 1mm (0.04 inches) amplitude.
Vibration or impact, if less than the specified value, applied for a long time may make the mechanism loose or cause
poor contact to the connectors.
Especially when impact is imposed repeatedly, caution must be taken as the part pins are likely to break.
Countermeasures
• Provide the enclosure with rubber vibration isolators.
• Strengthen the structure to prevent the enclosure from resonance.
• Install the enclosure away from sources of vibration.

10
Installation of the inverter and
enclosure design
1.4.2 Cooling system types for inverter enclosure
From the enclosure that contains the inverter, the heat of the inverter and other equipment (transformers, lamps,
resistors, etc.) and the incoming heat such as direct sunlight must be dissipated to keep the in-enclosure temperature
lower than the permissible temperatures of the in-enclosure equipment including the inverter.
The cooling systems are classified as follows in terms of the cooling calculation method.
1) Cooling by natural heat dissipation from the enclosure surface (Totally enclosed type)
2) Cooling by heatsink (Aluminum heatsink, etc.)
3) Cooling by ventilation (Forced ventilation type, pipe ventilation type)
4) Cooling by heat exchanger or cooler (Heat pipe, cooler, etc.)
1.4.3 Inverter placement
(1) Installation of the Inverter
Cooling System Enclosure Structure Comment
Natural
cooling
Natural ventilation
(Enclosed, open type)
Low in cost and generally used, but the enclosure size
increases as the inverter capacity increases. For relatively
small capacities.
Natural ventilation
(Totally enclosed type)
Being a totally enclosed type, the most appropriate for
hostile environment having dust, dirt, oil mist, etc. The
enclosure size increases depending on the inverter
capacity.
Forced
cooling
Heatsink cooling Having restrictions on the heatsink mounting position and
area, and designed for relative small capacities.
Forced ventilation For general indoor installation. Appropriate for enclosure
downsizing and cost reduction, and often used.
Heat pipe Totally enclosed type for enclosure downsizing.
Installation on the enclosure
FR-F720-01250 or lower
FR-F740-00620 or lower
FR-F720-01540 or higher
FR-F740-00770 or higher
INV
INV
INV
heatsink
INV
INV
Heat
pipe
CAUTION
When encasing multiple inverters, install them in parallel as
a cooling measure. Install the inverter vertically.
Vertical
*
*Refer to the clearances on the next page.
Fix six positions for the FR-F740-
04320 to 08660 and fix eight positions
for the FR-F740-09620 to 12120.