Mitsubishi Electric FR-E700, FR-E740EC Instruction Manual

FR-E700

MITSUBISHI ELECTRIC

Frequency Inverter

Instruction Manual

Art. no. 213994 IB(NA)-0600336ENG 01102008 Version C

FR-E740 EC

INDUSTRIAL AUTOMATION

INVERTER FR-E700

INSTRUCTION MANUAL

FR-E740-016 to 300 - EC FR-E720S-008 to 110 - EC

OUTLINE

WIRING

PRECAUTIONS FOR USE

OF THE INVERTER

PARAMETERS

TROUBLESHOOTING

PRECAUTIONS FOR

MAINTENANCE AND INSPECTION

SPECIFICATIONS

Thank you for choosing this Mitsubishi Inverter.

WARNING

This Instruction Manual provides instructions for advanced use of the FR-E700 series inverters. Incorrect handling might cause an unexpected fault. Before using the inverter, always read this instruction manual and the Installation Guideline [IB-0600335ENG] packed with the product carefully to use the equipment to its optimum performance.

1. Electric Shock Prevention

This section is specifically about safety matters

Do not attempt to install, operate, maintain or inspect the inverter until you have read through the Instruction Manual and appended documents carefully and can use the equipment correctly. Do not use this product 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".

WARNING

CAUTION

Note that even the level may lead to a serious consequence according to conditions. Please follow the instructions of both levels because they are important to personnel safety.

Assumes that incorrect handling may cause hazardous conditions, resulting in death or severe injury.

Assumes that incorrect handling may cause hazardous conditions, resulting in medium or slight injury, or may cause physical damage only.

CAUTION

While power is ON or open the front cover. Otherwise you may get an electric shock.

z Do not run the inverter with the front cover or wiring cover

removed. Otherwise, you may access the exposed highvoltage terminals or the charging part of the circuitry and get an electric shock.

z Even if power is OFF, do not remove the front cover

except for wiring or periodic inspection. You may access the charged inverter circuits and get an electric shock.

z Before starting wiring or inspection, switch OFF power,

check to make sure that the operation panel indicator is OFF, 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.

z 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) Use an neutral-point earthed (grounded) power supply for 400V class inverter in compliance with EN standard.

z Any person who is involved in the wiring or inspection of

this equipment should be fully competent to do the work.

z Always install the inverter before wiring. Otherwise, you

may get an electric shock or be injured.

z Perform setting dial and key operations with dry hands to

prevent an electric shock. Otherwise you may get an electric shock.

z Do not subject the cables to scratches, excessive stress,

heavy loads or pinching. Otherwise, you may get an electric shock.

z Do not change the cooling fan while power is ON. It is

dangerous to change the cooling fan while power is ON.

z Do not touch the printed circuit board with wet hands.

Otherwise, you may get an electric shock.

z When measuring the main circuit capacitor capacity, 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.

when the inverter is running, do not

2. Fire Prevention

CAUTION

Install the inverter on a nonflammable wall without holes (so that nobody can touch the inverter heatsink on the rear side, etc.). Mounting it to or near flammable material can cause a fire.

z If the inverter has become faulty, switch OFF the inverter

power. A continuous flow of large current could cause a fire.

z When using a brake resistor, make up a sequence that will

turn OFF power when an alarm signal is output. Otherwise, the brake resistor may excessively overheat due to damage of the brake transistor and such, causing a fire.

z Do not connect a resistor directly to the DC terminals +

and -. This could cause a fire.

A-1

3.Injury Prevention

WARNING

CAUTION

z Apply only the voltage specified in the instruction manual

to each terminal. Otherwise, burst, damage, etc. may

occur.

z Ensure that the cables are connected to the correct

terminals. Otherwise, burst, damage, etc. may occur.

z Always make sure that polarity is correct to prevent

damage, etc. Otherwise, burst, damage, etc. may occur.

z While power is ON or for some time after power-OFF, do

not touch the inverter as they will be extremely hot. Doing

so can cause burns.

4. Additional Instructions

Also note the following points to prevent an accidental failure,

injury, electric shock, etc.

(1) Transportation and mounting

CAUTION

z Transport the product using the correct method that

corresponds to the weight. Failure to observe this could

lead to injuries.

z Do not stack the inverter boxes higher than the number

recommended.

z Ensure that installation position and material can

withstand the weight of the inverter. Install according to

the information in the instruction manual.

z Do not install or operate the inverter if it is damaged or

has parts missing.

z When carrying the inverter, do not hold it by the front

cover or setting dial; it may fall off or fail.

z Do not stand or rest heavy objects on the product.

z Check the inverter mounting orientation is correct.

z Prevent other conductive bodies such as screws and

metal fragments or other flammable substance such as

oil from entering the inverter.

z As the inverter is a precision instrument, do not drop or

subject it to impact.

z Use the inverter under the following environmental

conditions: Otherwise, the inverter may be damaged.

Surrounding air temperature

Ambient humidity

Storage temperature

Atmosphere

Environment

Altitude/ vibration

∗1 Temperature applicable for a short time, e.g. in transit.

-10°C to +50°C (non-freezing)

90%RH or less (non-condensing)

-20°C to +65°C *1

Indoors (free from corrosive gas, flammable gas, oil mist, dust and dirt)

Maximum 1000m above sea level for standard operation. After that derate by 3% for every extra 500m up to 2500m (91%).

or less at 10 to 55Hz (directions of X, Y, Z

5.9m/s axes)

(2) Wiring

CAUTION

z Do not install a power factor correction capacitor or surge

suppressor/capacitor type filter on the inverter output

side. These devices on the inverter output side may be

overheated or burn out.

z The connection orientation of the output cables U, V, W to

the motor will affect the direction of rotation of the motor.

(3) Trial run

CAUTION

z Before starting operation, confirm and adjust the

parameters. A failure to do so may cause some machines

to make unexpected motions.

(4) Usage

z When you have chosen the retry function, stay away from

the equipment as it will restart suddenly after trip.

z Since pressing key may not stop output depending

on the function setting status, provide a circuit and switch

separately to make an emergency stop (power OFF,

mechanical brake operation for emergency stop, etc).

z Make sure that the start signal is OFF before resetting the

inverter alarm. A failure to do so may restart the motor

suddenly.

The load used should be a three-phase induction motor only.

Connection of any other electrical equipment to the

inverter output may damage the equipment.

z 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 product.

CAUTION

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.

z Do not use a magnetic contactor on the inverter input for

frequent starting/stopping of the inverter. Otherwise, the

life of the inverter decreases.

z Use a noise filter to reduce the effect of electromagnetic

interference. Otherwise nearby electronic equipment may

be affected.

z Take measures to suppress harmonics. Otherwise power

supply harmonics from the inverter may heat/damage the

power factor correction capacitor and generator.

z When a 400V class motor is inverter-driven, please use an

insulation-enhanced motor or measures taken to

suppress surge voltages. Surge voltages attributable to

the wiring constants may occur at the motor terminals,

deteriorating the insulation of the motor.

z When parameter clear or all parameter clear is performed,

reset the required parameters before starting operations.

Each parameter returns to the initial value.

z The inverter can be easily set for high-speed operation.

Before changing its setting, fully examine the

performances of the motor and machine.

z In addition to the inverter’s holding function, install a

holding device to ensure safety.

z Before running an inverter which had been stored for a

long period, always perform inspection and test

operation.

z For prevention of damage due to static electricity, touch

nearby metal before touching this product to eliminate

static electricity from your body.

A-2

(5) Emergency stop

CAUTION

z Provide a safety backup such as an emergency brake

which will prevent the machine and equipment from

hazardous conditions if the inverter fails.

z When the breaker on the inverter input 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.

z When any protective function is activated, take the

appropriate corrective action, then reset the inverter, and

resume operation.

(6) Maintenance, inspection and parts replacement

CAUTION

z Do not carry out a megger (insulation resistance) test on

the control circuit of the inverter. It will cause a failure.

(7) Disposal

CAUTION

z Treat as industrial waste.

General instruction

Many of the diagrams and drawings in this Instruction Manual show the inverter without a cover, or partially open. Never operate the inverter in this manner. Always replace the cover and follow this Instruction Manual when operating the inverter.

A-3

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 Removal and reinstallation of the cover ............................................ 5

1.3.1 Front cover...................................................................................................................................... 5

1.3.2 Wiring cover.................................................................................................................................... 7

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 panel........................................................................................ 10

1.4.3 Inverter placement........................................................................................................................ 11

2 WIRING 13

2.1 Wiring................................................................................................. 14

2.1.1 Terminal connection diagram ....................................................................................................... 14

2.2 Main circuit terminal specifications.................................................15

2.2.1 Specification of main circuit terminal ............................................................................................ 15

2.2.2 Terminal arrangement of the main circuit terminal, power supply and the motor wiring............... 16

2.2.3 Cables and wiring length .............................................................................................................. 17

2.3 Control circuit specifications ........................................................... 20

2.3.1 Standard control circuit terminal ................................................................................................... 20

2.3.2 Changing the control logic ............................................................................................................ 23

2.3.3 Wiring of control circuit ................................................................................................................. 25

2.3.4 Wiring instructions ........................................................................................................................ 26

2.3.5 Connection to the PU connector ................................................................................................... 27

2.4 Connection of stand-alone option unit ............................................. 29

2.4.1 Connection of a dedicated external brake resistor (MRS type, FR-ABR) (FR-E740-016 or more, FR-

E720S-030 or more) ..................................................................................................................... 29

2.4.2 Connection of the brake unit (FR-BU2) ........................................................................................ 31

2.4.3 Connection of the high power factor converter (FR-HC) .............................................................. 32

2.4.4 Connection of the power regeneration common converter (FR-CV) ............................................ 33

2.4.5 Connection of a DC reactor (FR-HEL) .......................................................................................... 33

3 PRECAUTIONS FOR USE OF THE INVERTER 35

3.1 EMC and leakage currents................................................................36

3.1.1 Leakage currents and countermeasures ...................................................................................... 36

3.1.2 EMC measures............................................................................................................................. 38

3.1.3 Power supply harmonics .............................................................................................................. 40

3.2 Installation of power factor improving reactor ............................... 41

3.3 Power-OFF and magnetic contactor (MC)........................................ 42

3.4 Inverter-driven 400V class motor .................................................... 43

3.5 Precautions for use of the inverter .................................................. 44

3.6 Failsafe of the system which uses the inverter .............................. 46

4 PARAMETERS 49

4.1 Operation panel ................................................................................ 50

4.1.1 Names and functions of the operation panel ................................................................................ 50

4.1.2 Basic operation (factory setting) ................................................................................................... 51

4.1.3 Easy operation mode setting (easy setting mode) ....................................................................... 52

4.1.4 Change the parameter setting value ............................................................................................ 53

4.1.5 Setting dial push ........................................................................................................................... 53

4.2 Parameter list ................................................................................... 54

4.2.1 Parameter list ............................................................................................................................... 54

4.3 Control mode ................................................................................... 75

CONTENTS

4.3.1 Change the control method (Pr. 80, Pr. 81, Pr. 800) ................................................................... 76

4.4 Adjust the output torque (current) of the motor............................. 77

4.4.1 Manual torque boost (Pr. 0, Pr. 46) ............................................................................................. 77

4.4.2 Advanced magnetic flux vector control (Pr. 71, Pr. 80, Pr. 81, Pr.89, Pr. 800) ......................... 78

4.4.3 General-purpose magnetic flux vector control (Pr. 71, Pr. 80, Pr. 81, Pr. 800) ........................... 81

4.4.4 Slip compensation (Pr. 245 to Pr. 247) ....................................................................................... 83

4.4.5 Stall prevention operation (Pr. 22, Pr. 23, Pr. 48, Pr. 66, Pr. 156, Pr. 157, Pr. 277) ................... 84

4.5 Limit the output frequency.............................................................. 88

4.5.1 Maximum/minimum frequency (Pr. 1, Pr. 2, Pr. 18) .................................................................... 88

4.5.2 Avoid mechanical resonance points (frequency jumps) (Pr. 31 to Pr. 36)................................... 89

4.6 Set V/F pattern................................................................................. 90

4.6.1 Base frequency, voltage (Pr. 3, Pr. 19, Pr. 47) ............................................................................ 90

4.6.2 Load pattern selection (Pr. 14) .................................................................................................... 92

4.7 Frequency setting by external terminals........................................ 94

4.7.1 Operation by multi-speed operation (Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239) ............ 94

4.7.2 Jog operation (Pr. 15, Pr. 16) ...................................................................................................... 96

4.7.3 Remote setting function (Pr. 59) .................................................................................................. 98

4.8 Setting of acceleration/deceleration time and acceleration/

deceleration pattern ...................................................................... 101

4.8.1 Setting of the acceleration and deceleration time

(Pr. 7, Pr. 8, Pr. 20, Pr. 21, Pr. 44, Pr. 45, Pr. 147) .................................................................. 101

4.8.2 Starting frequency and start-time hold function (Pr. 13, Pr. 571)............................................... 104

4.8.3 Acceleration/deceleration pattern (Pr. 29) ................................................................................. 105

4.8.4 Shortest acceleration/deceleration (automatic acceleration/deceleration)

(Pr. 61 to Pr. 63, Pr. 292, Pr. 293)............................................................................................. 106

4.9 Selection and protection of a motor.............................................. 108

4.9.1 Motor overheat protection (Electronic thermal O/L relay) (Pr. 9, Pr. 51) ................................... 108

4.9.2 Applied motor (Pr. 71, Pr. 450) .................................................................................................. 110

4.9.3 To exhibit the best performance of the motor performance (offline auto tuning)

(Pr. 71, Pr. 80 to Pr. 84, Pr. 90 to Pr. 94, Pr. 96, Pr. 859) ......................................................... 112

4.10 Motor brake and stop operation .................................................... 120

4.10.1 DC injection brake (Pr. 10 to Pr. 12).......................................................................................... 120

4.10.2 Selection of a regenerative brake (Pr. 30, Pr. 70) ..................................................................... 121

4.10.3 Stop selection (Pr. 250) ............................................................................................................. 123

4.10.4 Stop-on contact control function (Pr. 6, Pr. 48, Pr. 270, Pr. 275, Pr. 276) ................................ 124

4.10.5 Brake sequence function (Pr. 278 to Pr. 283, Pr. 292) .............................................................. 126

4.11 Function assignment of external terminal and control ................ 130

4.11.1 Input terminal function selection (Pr. 178 to Pr. 184)................................................................. 130

4.11.2 Inverter output shutoff signal (MRS signal, Pr. 17) .................................................................... 132

4.11.3 Condition selection of function validity by second function selection signal (RT) ...................... 133

4.11.4 Start signal operation selection (STF, STR, STOP signal, Pr. 250) .......................................... 134

4.11.5 Output terminal function selection (Pr. 190 to Pr. 192).............................................................. 136

4.11.6 Detection of output frequency (SU, FU signal, Pr. 41 to Pr. 43)................................................ 140

4.11.7 Output current detection function (Y12 signal, Y13 signal, Pr. 150 to Pr. 153) ......................... 141

4.11.8 Remote output selection (REM signal, Pr. 495 to Pr. 497) ........................................................ 143

4.12 Monitor display and monitor output signal.................................... 144

4.12.1 Speed display and speed setting (Pr. 37).................................................................................. 144

4.12.2 Monitor display selection of DU/PU and terminal AM

(Pr. 52, Pr.158, Pr. 170, Pr. 171, Pr. 268, Pr. 563, Pr. 564) ...................................................... 145

4.12.3 Reference of the terminal AM (analog voltage output) (Pr. 55, Pr. 56)...................................... 150

4.12.4 Terminal AM calibration (calibration parameter Pr. 645, C1 (Pr.901))....................................... 151

4.13 Operation selection at power failure and instantaneous power

failure ............................................................................................. 153

4.13.1 Automatic restart after instantaneous power failure/flying start

(Pr. 30, Pr. 57, Pr. 58, Pr. 96, Pr. 162, Pr. 165, Pr. 298, Pr. 299, Pr. 611) ................................ 153

4.13.2 Power-failure deceleration stop function (Pr. 261)..................................................................... 159

III

4.14 Operation setting at fault occurrence .......................................... 161

4.14.1 Retry function (Pr. 65, Pr. 67 to Pr. 69) ..................................................................................... 161

4.14.2 Input/output phase loss protection selection (Pr. 251, Pr. 872) ................................................. 163

4.14.3 Earth (ground) fault detection at start (Pr. 249) ......................................................................... 163

4.15 Energy saving operation................................................................ 164

4.15.1 Optimum excitation control (Pr. 60) ........................................................................................... 164

4.16 Motor noise, EMI measures, mechanical resonance.................... 165

4.16.1 PWM carrier frequency and soft-PWM control (Pr. 72, Pr. 240)................................................ 165

4.16.2 Speed smoothing control (Pr. 653)............................................................................................ 166

4.17 Frequency setting by analog input (terminal 2, 4) ....................... 167

4.17.1 Analog input selection (Pr. 73, Pr. 267)..................................................................................... 167

4.17.2 Response level of analog input and noise elimination (Pr. 74).................................................. 169

4.17.3 Bias and gain of frequency setting voltage (current)

(Pr. 125, Pr. 126, Pr. 241, C2 (Pr. 902) to C7 (Pr. 905)) ........................................................... 170

4.18 Misoperation prevention and parameter setting restriction........ 175

4.18.1 Reset selection/disconnected PU detection/PU stop selection (Pr. 75) .................................... 175

4.18.2 Parameter write disable selection (Pr. 77)................................................................................. 178

4.18.3 Reverse rotation prevention selection (Pr. 78) .......................................................................... 179

4.18.4 Extended parameter display and user group function (Pr. 160, Pr. 172 to Pr. 174) .................. 179

4.19 Selection of operation mode and operation location ................... 182

CONTENTS

4.19.1 Operation mode selection (Pr. 79)............................................................................................. 182

4.19.2 Operation mode at power-ON (Pr. 79, Pr. 340)......................................................................... 192

4.19.3 Start command source and frequency command source during communication

operation (Pr. 338, Pr. 339, Pr. 550, Pr. 551) ............................................................................ 193

4.20 Communication operation and setting ......................................... 199

4.20.1 Wiring and configuration of PU connector ................................................................................. 199

4.20.2 Initial settings and specifications of RS-485 communication

(Pr. 117 to Pr. 120, Pr. 123, Pr. 124, Pr. 549) ........................................................................... 202

4.20.3 Operation selection at communication error occurrence (Pr. 121, Pr. 122, Pr. 502) ................. 203

4.20.4 Communication EEPROM write selection (Pr. 342) .................................................................. 206

4.20.5 Mitsubishi inverter protocol (computer link communication) ...................................................... 207

4.20.6 Modbus RTU communication specifications

(Pr. 117, Pr. 118, Pr. 120, Pr. 122, Pr. 343, Pr. 502, Pr. 549) ................................................... 218

4.20.7 USB communication (Pr. 547, Pr. 548) ..................................................................................... 231

4.21 Special operation and frequency control ..................................... 232

4.21.1 PID control (Pr. 127 to Pr. 134) ................................................................................................. 232

4.21.2 Dancer control (Pr. 44, Pr. 45, Pr. 128 to Pr. 134) .................................................................... 239

4.21.3 Droop control (Pr. 286 to Pr. 287) ............................................................................................ 245

4.21.4 Regeneration avoidance function (Pr. 665, Pr. 882, Pr. 883, Pr. 885, Pr. 886)......................... 246

4.22 Useful functions ............................................................................. 248

4.22.1 Cooling fan operation selection (Pr. 244) .................................................................................. 248

4.22.2 Display of the life of the inverter parts (Pr. 255 to Pr. 259) ........................................................ 249

4.22.3 Maintenance timer alarm (Pr. 503, Pr. 504)............................................................................... 253

4.22.4 Current average value monitor signal (Pr. 555 to Pr. 557) ........................................................ 254

4.22.5 Free parameter (Pr. 888, Pr. 889) ............................................................................................. 256

4.23 Setting from the parameter unit and operation panel .................. 257

4.23.1 RUN key rotation direction selection (Pr. 40)............................................................................. 257

4.23.2 PU display language selection(Pr.145)...................................................................................... 257

4.23.3 Operation panel frequency setting/key lock operation selection (Pr. 161)................................. 258

4.23.4 Magnitude of frequency change setting (Pr. 295)...................................................................... 260

4.23.5 Buzzer control (Pr. 990) ............................................................................................................. 261

4.23.6 PU contrast adjustment (Pr. 991) .............................................................................................. 261

4.24 Parameter clear/ All parameter clear............................................ 262

4.25 Initial value change list ................................................................. 263

4.26 Check and clear of the faults history ............................................ 264

5 TROUBLESHOOTING 267

5.1 Reset method of protective function.............................................. 268

5.2 List of fault or alarm indications .................................................... 269

5.3 Causes and corrective actions ....................................................... 270

5.4 Correspondences between digital and actual characters............. 278

5.5 Check first when you have some troubles ..................................... 279

5.5.1 Motor does not start.................................................................................................................... 279

5.5.2 Motor or machine is making abnormal acoustic noise................................................................ 281

5.5.3 Inverter generates abnormal noise ............................................................................................. 281

5.5.4 Motor generates heat abnormally ............................................................................................... 281

5.5.5 Motor rotates in the opposite direction........................................................................................ 282

5.5.6 Speed greatly differs from the setting ......................................................................................... 282

5.5.7 Acceleration/deceleration is not smooth ..................................................................................... 282

5.5.8 Speed varies during operation.................................................................................................... 283

5.5.9 Operation mode is not changed properly.................................................................................... 283

5.5.10 Operation panel display is not operating .................................................................................... 284

5.5.11 Motor current is too large ............................................................................................................ 284

5.5.12 Speed does not accelerate......................................................................................................... 285

5.5.13 Unable to write parameter setting............................................................................................... 285

6 PRECAUTIONS FOR MAINTENANCE AND INSPECTION 287

6.1 Inspection items ............................................................................. 288

6.1.1 Daily inspection .......................................................................................................................... 288

6.1.2 Periodic inspection ..................................................................................................................... 288

6.1.3 Daily and periodic inspection ...................................................................................................... 289

6.1.4 Display of the life of the inverter parts ........................................................................................ 290

6.1.5 Checking the inverter and converter modules ............................................................................ 291

6.1.6 Cleaning ..................................................................................................................................... 292

6.1.7 Replacement of parts ................................................................................................................. 292

6.1.8 Inverter replacement................................................................................................................... 295

6.2 Measurement of main circuit voltages, currents and powers ...... 296

6.2.1 Measurement of powers ............................................................................................................. 298

6.2.2 Measurement of voltages and use of PT .................................................................................... 298

6.2.3 Measurement of currents............................................................................................................ 299

6.2.4 Use of CT and transducer .......................................................................................................... 299

6.2.5 Measurement of inverter input power factor ............................................................................... 299

CONTENTS

6.2.6 Measurement of converter output voltage (across terminals + and -) ........................................ 299

6.2.7 Insulation resistance test using megger ..................................................................................... 300

6.2.8 Pressure test .............................................................................................................................. 300

7 SPECIFICATIONS 301

7.1 Rating.............................................................................................. 302

7.1.1 Inverter rating ............................................................................................................................. 302

7.2 Common specifications.................................................................. 304

7.3 Outline dimension drawings........................................................... 305

APPENDIX 309

Appendix1 For customers who have replaced the conventional model

with this inverter ....................................................................................... 310

Appendix 1-1 Replacement of the FR-E500 series ............................................................................... 310

Appendix2 Index........................................................................................................... 312

MEMO

VII

1 OUTLINE

This chapter explains the "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 Removal and reinstallation of the cover ..................................... 5

1.4 Installation of the inverter and enclosure design ...................... 8

PU .................................................. Operation panel and parameter unit (FR-PU04

Inverter ........................................... Mitsubishi inverter FR-E700 series

FR-

E700 ........................................ Mitsubishi inverter FR-E700 series

Pr.................................................... Parameter number

PU operation .................................. Operation using the PU (operation panel/FR-PU04/FR-PU07)

External operation.......................... Operation using the control circuit signals

Combined operation ....................... Operation using both the PU (operation panel/FR-PU04/FR-

PU07) and external operation

Operation panel for E500, PA02..... FR-E500 series operation panel (FR-PA02-02)

Mitsubishi standard motor .............. SF-JR

Mitsubishi constant-torque motor ... SF-HRCA

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is a registered trademark of Echelon Corporation in the U.S.A and other countries.

is a registered trademark of ODVA (Open DeviceNet Vender Association, Inc.).

/FR-PU07)

REMARKS :Additional helpful contents and relations with other functions are stated

NOTE :Contents requiring caution or cases when set functions are not

activated are stated.

POINT :Useful contents and points are stated.

Parameters referred to : related parameters are stated.

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.

zInverter type

Symbol Voltage class

E740

E720S

Operation panel

(Refer to page 50)

PU connector

(Refer to page 22)

Voltage/current input switch

(Refer to page 20)

USB connector cover

(Refer to page 231)

Front cover

(Refer to page 5)

PU connector cover

(Refer to page 27)

Three-phase 400V class

Single-phase 200V class

E740 095

Displays the rated current

Cooling fan

(Refer to page 292)

USB connector (mini-B connector)

(Refer to page 231)

Connector for plug-in option connection

(Refer to the instruction manual of options.)

Standard control circuit terminal block

(Refer to page 20)

Rating plate *

Inverter type

Input rating

Capacity plate *

FR-E740-095-EC

Inverter type

Output rating

Serial number

* Location of the capacity plate and the rating plate differs according to the inverter capacity.

Refer to the outline dimension drawing.(Refer to page 305)

• Accessory

· Fan cover fixing screws (M3 × 35mm) These screws are necessary for compliance with the European Directive (

Type Number

FR-E740-040 to 095, FR-E720S-050 to 110 1

FR-E740-120 to 300 2

Changing the control logic jumper connector

(Refer to page 23)

Main circuit terminal block

(Refer to page 15)

Combed shaped wiring cover

(Refer to page 7)

FR-E740-095-EC

Refer to Installation Guideline

)

1.2 Inverter and peripheral devices

AC power supply

AC reactor (FR-HAL)

Use within the permissible power supply specifications of the inverter. To ensure safety, use a moulded case circuit breaker, earth leakage circuit breaker or magnetic contactor to switch power ON/OFF.

(Refer to page 302)

Moulded case circuit breaker (MCCB) or earth leakage circuit breaker (ELB), fuse

The breaker must be selected carefully since an in-rush current flows in the inverter at power on.

(Refer to page 4)

Magnetic contactor (MC)

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 shorten.

(Refer to page 42)

Reactor (FR-HAL, FR-HEL option)

Reactors (option) must be used when power harmonics measures are taken, the power factor is to be improved or the inverter is installed near a large power supply system (500kVA or more). The inverter may be damaged if you do not use reactors. Select the reactor according to the model. Remove the jumpers across terminals + and P1 to connect the DC reactor.

DC reactor (FR-HEL)

Parameter unit (FR-PU07)

By connecting the connection cable (FR-CB2) to the PU connector, operation can be performed from FR-PU07.

(Refer to page 27)

Inverter and peripheral devices

USB connector

A personal computer and an inverter can be connected with a USB (Ver1. 1) cable.

(Refer to page 231)

Inverter (FR-E700)

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 8 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)

Brake resistor (FR-ABR, MRS type)

Braking capability can be improved. (FR-E740-016 or more, FR-E720S-030 or more) Always install a thermal relay when using a brake resistor whose capacity is 11K or more.

Noise filter (FR-BSF01, FR-BLF)

Install a noise filter to reduce the electromagnetic noise generated from the inverter. Effective in the range from about 1MHz to 10MHz. When more wires are passed through, a more effective result can be obtained. A wire should be wound four turns or more.

High power factor converter (FR-HC)

Power supply harmonics can be greatly suppressed. Install this as required.

Power regeneration common converter (FR-CV)

Great braking capability is obtained. Install this as required.

P1+

R/L1 S/L2T/L3

Capacitor type filter (FR-BIF)

Reduces the radio noise.

Brake unit (FR-BU2)

P/+

Resistor unit (FR-BR) Discharging resistor (GZG, GRZG)

The regenerative braking capability of the inverter can be exhibited fully. Install this as required.

Earth (Ground)

Noise filter (FR-BSF01, FR-BLF)

Install a noise filter to reduce the

Devices connected to the output

Do not install a power factor correction capacitor, surge suppressor or capacitor type filter 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.

Earth (Ground)

To prevent an electric shock, always earth (ground) the motor and inverter. For reduction of induction noise from the power line of the inverter, it is recommended to wire the earth (ground) cable by returning it to the earth (ground) terminal of the inverter.

electromagnetic noise generated from the inverter. Effective in the range from about 1MHz to 10MHz. A wire should be wound four turns at a maximum.

Motor

Earth (Ground)

NOTE

 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, install the FR-BIF optional capacitor type filter (for use in the input side only) or FR-BSF01 or FR-BLF common mode filter to minimize interference. (Refer

to page 38).

 Refer to the instruction manual of each option and peripheral devices for details of peripheral devices.

OUTLINE

Inverter and peripheral devices

1.2.1 Peripheral devices

Check the inverter type 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:

Moulded Case Circuit Breaker

(MCCB) ∗1

(ELB) ∗2

Reactor connection Reactor connection

Inverter Type

Motor

Output

(kW)

or Earth Leakage Circuit Breaker

without with without with

FR-E740-016 0.4 30AF 5A 30AF 5A S-N10 S-N10 H0.4K H0.4K FR-E740-026 0.75 30AF 5A 30AF 5A S-N10 S-N10 H0.75K H0.75K FR-E740-040 1.5 30AF 10A 30AF 10A S-N10 S-N10 H1.5K H1.5K FR-E740-060 2.2 30AF 15A 30AF 10A S-N10 S-N10 H2.2K H2.2K FR-E740-095 3.7 30AF 20A 30AF 15A S-N10 S-N10 H3.7K H3.7K FR-E740-120 5.5 30AF 30A 30AF 20A S-N20, S-N21 S-N11, S-N12 H5.5K H5.5K FR-E740-170 7.5 30AF 30A 30AF 30A S-N20, S-N21 S-N20, S-N21 H7.5K H7.5K

Three-Phase 400V

FR-E740-230 11 50AF 50A 50AF 40A S-N20, S-N21 S-N20, S-N21 H11K H11K FR-E740-300 15 100AF 60A 50AF 50A S-N25 S-N20, S-N21 H15K H15K

FR-E720S-008 0.1 30AF 5A 30AF 5A S-N10 S-N10

FR-E720S-015 0.2 30AF 5A 30AF 5A S-N10 S-N10

FR-E720S-030 0.4 30AF 10A 30AF 10A S-N10 S-N10

FR-E720S-050 0.75 30AF 15A 30AF 10A S-N10 S-N10

FR-E720S-080 1.5 30AF 20A 30AF 20A S-N10 S-N10

FR-E720S-110 2.2 30AF 40A 30AF 30A S-N20, S-N21 S-N10 3.7K

Single-Phase 200V

∗1 Select an MCCB according to the power supply capacity.

Install one MCCB per inverter.

∗2 For installations in the United States or Canada, use the class T type fuse certified by the UL and cUL. ∗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.

When using the MC for emergency stop during motor driving or using on the motor side during commercial-power supply operation, select the MC with class

AC-3 rated current for the motor rated current.

∗4 The power factor may be slightly lower.

Magnetic Contactor (MC)

∗3

Reactor

FR-HAL FR-HEL

∗4 0.4K ∗4

0.4K

∗4 0.4K ∗4

0.4K

∗4 0.75K ∗4

0.75K

∗4 1.5K ∗4

1.5K

∗4 2.2K ∗4

2.2K

∗4 3.7K ∗4

MCCB INV

NOTE

 When the inverter capacity is larger than the motor capacity, select an MCCB and a magnetic contactor according to

the inverter type 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.

Removal and reinstallation of the cover

1.3 Removal and reinstallation of the cover

1.3.1 Front cover

FR-E740-170 or less, FR-E720S

zRemoval (Example of FR-E740-095)

Remove the front cover by pulling it toward you in the direction of arrow.

zReinstallation (Example of FR-E740-095)

To reinstall, match the cover to the inverter front and install it straight.

OUTLINE

Removal and reinstallation of the cover

FR-E740-230, 300

zRemoval (Example of FR-E740-230)

1) Loosen the installation screws of the front cover 1.

2) Remove the front cover 1 by pulling it toward you in the direction of arrow.

3) Remove the front cover 2 by pulling it toward you in the direction of arrow.

1) 2) 3)

Front cover 2

Front cover 1

Installation

screws

zReinstallation (Example of FR-E740-230)

1) Match the front cover 2 to the inverter front and install it straight.

2) Insert the two fixed hooks on the lower side of the front cover 1 into the sockets of the inverter.

3)Tighten the screw of the front cover 1.

1) 2) 3)

Tighten the installation screws

Front cover 1

Front cover 2

Fixed hook

Socket of the inverte

NOTE

 Fully make sure that the front cover has been reinstalled securely.

 The same serial number is printed on the capacity plate of the front cover and the rating plate of the inverter. Since

these plates have the same serial numbers, always reinstall the removed cover onto the original inverter.

Removal and reinstallation of the cover

1.3.2 Wiring cover

zRemoval and reinstallation

The cover can be removed easily by pulling it toward you. To reinstall, fit the cover to the inverter along the guides.

FR-E720S-008 to 030 FR-E740-016 to 095

FR-E720S-050 to 110

Guide

Wiring cove

Example of FR-E720S-030 Example of FR-E740-095

FR-E740-120, 170 FR-E740-230, 300

Guid

Wiring cover

Wiring cove

Wiring cover

Guide

OUTLINE

Guide

Dent

For removal, push the dent on the wiring cover with your finger and

pull toward you.

Example of FR-E740-120 Example of FR-E740-230

Installation of the inverter and enclosure design

1.4 Installation of the inverter and enclosure design

When an inverter panel 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 panel 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.

Environmental standard specifications of inverter

Item Description

Surrounding air

temperature

Ambient humidity 90%RH or less (non-condensing)

Atmosphere Free from corrosive and explosive gases, free from dust and dirt

Maximum altitude 1,000m or less

Vibration

(1) Temperature

The permissible surrounding air temperature of the inverter is between -10 and +50°C 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 panel 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 panel well.

-10 to +50

5.9m/s

°C (non-freezing)

or less at 10 to 55Hz (directions of X, Y, Z axes)

. Always operate the inverter within this

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 panel 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 panel from outside.

3) Measures against condensation Condensation may occur if frequent operation stops change the in-panel 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.)

Installation of the inverter and enclosure design

(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-panel 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-panel 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. 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 at 10 to 55Hz frequency and 1mm amplitude for the directions of X, Y,

Z axes. 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 panel with rubber vibration isolators.

 Strengthen the structure to prevent the panel from resonance.

 Install the panel away from sources of vibration.

OUTLINE

Installation of the inverter and enclosure design

1.4.2 Cooling system types for inverter panel

From the panel 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-panel temperature lower than the permissible

temperatures of the in-panel 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 heat sink (aluminum fin, etc.)

3) Cooling by ventilation (forced ventilation type, pipe ventilation type)

4) Cooling by heat exchanger or cooler (heat pipe, cooler, etc.)

Cooling System Panel Structure Comment

Natural

cooling

Forced

cooling

Natural ventilation

(enclosed, open type)

Natural ventilation

(totally enclosed type)

Fin cooling

Forced ventilation

Heat pipe Totally enclosed type for panel downsizing.

Heatsink

INV

Heat pipe

INV

Low in cost and generally used, but the panel size increases

as the inverter capacity increases. For relatively small

capacities.

Being a totally enclosed type, the most appropriate for hostile

environment having dust, dirt, oil mist, etc. The panel size

increases depending on the inverter capacity.

Having restrictions on the heatsink mounting position and

area, and designed for relative small capacities.

For general indoor installation. Appropriate for panel

downsizing and cost reduction, and often used.

Installation of the inverter and enclosure design

1.4.3 Inverter placement

(1) Installation of the inverter

Enclosure surface mounting

Remove the front cover and wiring cover to fix the inverter to the surface.

 FR-E720S-008 to 030  FR-E740-016 or more

 FR-E720S-050 or more

Front cover

Wiring cover

NOTE

 When encasing multiple inverters, install them in parallel as a

cooling measure.

 Install the inverter vertically.

Refer to the cleara

nces below.

Vertical

(2) Clearances around inverter

To ensure ease of heat dissipation and maintenance, leave at least the shown clearances around the inverter. At least the

following clearances are required under the inverter as a wiring space, and above the inverter as a heat dissipation space.

Surrounding air temperature and humidity

Measurement position

Inverter

5cm

Measurement

position

5cm

Temperature: -10 C to +50 C

Humidity: 90% RH or less

Clearances (front)

1cm or more*

10cm or more

1cm or more*

10cm or more

Clearances (side)

Inverter

1cm

or more

OUTLINE

Leave enough clearances and take cooling measures.

* When using the inverters at the surrounding

air temperature of 40 C or less, the inverters can be installed without any clearance between them (0cm clearance).

When surrounding air temperature exceeds

40 C, clearances between the inverters should be 1cm or more (5cm or more for the FR-E740-120 or more).

(3) Inverter mounting orientation

Mount the inverter on a wall as specified. Do not mount it horizontally or any other way.

* 5cm or more for the FR-

E740-120 or more

Installation of the inverter and enclosure design

(4) Above inverter

Heat is blown up from inside the inverter by the small fan built in the unit. Any equipment placed above the inverter should be

heat resistant.

(5) Arrangement of multiple inverters

When multiple inverters are placed in the same

enclosure, generally arrange them horizontally as shown

in the right figure (a). When it is inevitable to arrange

them vertically to minimize space, take such measures as

to provide guides since heat from the bottom inverters

can increase the temperatures in the top inverters,

causing inverter failures.

When mounting multiple inverters, fully take caution not

to make the surrounding air temperature of the inverter

higher than the permissible value by providing ventilation

and increasing the panel size.

(6) Arrangement of ventilation fan and inverter

(a) Horizontal arrangement

InverterInverter

Enclosure Enclosure

Arrangement of multiple inverters

Inverter

Guide Guide

Inverter

(b) Vertical arrangement

Guide

Heat generated in the inverter is blown up from the bottom of

the unit as warm air by the cooling fan. When installing a

ventilation fan for that heat, determine the place of ventilation

fan installation after fully considering an air flow. (Air passes

through areas of low resistance. Make an airway and airflow

plates to expose the inverter to cool air.)

Inverter Inverter

Placement of ventilation fan and inverter

2 WIRING

This chapter describes the basic "WIRING" for use of this product. Always read the instructions before using the equipment

2.1 Wiring............................................................................................. 14

2.2 Main circuit terminal specifications ............................................ 15

2.3 Control circuit specifications ...................................................... 20

2.4 Connection of stand-alone option unit....................................... 29

Wiring

2.1 Wiring

2.1.1 Terminal connection diagram

Source logic

Main circuit terminal Control circuit terminal

Single-phase power input

MCCB MC

Single-phase AC power supply

MCCB MC

Three-phase AC power supply

L1 N

(Ground)

*1. DC reactor (FR-HEL)

When connecting a DC reactor, remove the jumper across P1 and +.

Earth

R/L1 S/L2 T/L3

Jumper

Inrush current limit circuit

Brake unit

(Option)

*6 A brake transistor is not built-in to the

FR-E720S-008 and 015.

*7 Brake resistor (FR-ABR, MRS type)

Install a thermal relay to prevent an overheat and burnout of the brake resistor. (The brake resistor can not be connected to the FR-E720S-008 and 015.)

Motor

Earth

(Ground)

Control input signals (No voltage input allowed)

Terminal functions vary with the input terminal assignment (Pr. 178 to Pr. 184)

Forward rotation start

Reverse rotation start

High speed

Multi-speed selection

*2 When using terminals PC-

SD as a 24VDC power supply, take care not to short across terminals PC-SD.

Middle speed

Low speed

Output stop

Reset

Contact input common

24VDC power supply

(Common for external power supply transistor)

Contact input common

Frequency setting signals (Analog)

*3 Terminal input specifications

can be changed by analog input specifications switchover (Pr. 73).

*4 Terminal input

specifications can be changed by analog input specifications switchover (Pr. 267). Set the voltage/current input switch in the "V" position to select voltage input (0 to 5V/0 to10V) and "I" (initial value) to select current input (4 to 20mA).

*5 It is recommended to use 2W1kΩ

when the frequency setting signal is changed frequently.

Frequency setting potentiometer

1/2W1kΩ

Terminal 4 input (Current input)

(+) (-)

Main circuit

Control circuit

STF

STR

MRS

RES

SOURCE

SINK

24V

10(+5V)

2 0 to 5VDC

(0 to 10VDC)

5(Analog common)

4 4 to 20mADC

0 to 5VDC 0 to 10VDC

Voltage/current input switch

Earth (Ground)

Standard control temirnal block

Relay output (Fault output)

RUN

Running

Frequency detection

Open collector output common

Sink/source common

connector

USB

connector

Relay output

Terminal functions vary by Pr. 192 A,B,C terminal function selection

Open collector output

Terminal functions vary with the output terminal assignment (Pr. 190 and Pr. 191)

(+)

Analog signal output

(0 to 10VDC)

(-)

Connector for plug-in option connection

Option connector

NOTE

 To prevent a malfunction caused by noise, separate the signal cables more than 10cm from the power cables. Also

separate the main circuit wire of the input side and the output side.

 After wiring, wire offcuts must not be left in the inverter.

Wire offcuts can cause an alarm, failure or malfunction. Always keep the inverter clean. When drilling mounting holes in an enclosure etc., take care not to allow chips and other foreign matter to enter the inverter.

 The output of the single-phase power input specification is three-phase 200V.

Main circuit terminal specifications

2.2 Main circuit terminal specifications

2.2.1 Specification of main circuit terminal

Terminal

Symbol

R/L1,

S/L2, T/L3 ∗1

U, V, W Inverter output Connect a three-phase squirrel-cage motor.

+, PR Brake resistor connection

+, - Brake unit connection

+, P1 DC reactor connection Remove the jumper across terminals + and P1 and connect a DC reactor.

∗1 When using single-phase power input, terminals are L1, N.

AC power input

Earth (Ground) For earthing (grounding) the inverter chassis. Must be earthed (grounded).

Terminal Name Description

Connect to the commercial power supply.

Keep these terminals open when using the high power factor converter (FR-HC) or

power regeneration common converter (FR-CV).

Connect a brake resistor (FR-ABR, MRS type) across terminals + and PR.

(The brake resistor can not be connected to the FR-E720S-008 and 015.)

Connect the brake unit (FR-BU2), power regeneration common converter (FR-CV)

or high power factor converter (FR-HC).

WIRING

Main circuit terminal specifications

2.2.2 Terminal arrangement of the main circuit terminal, power supply and the motor wiring

Three-phase 400V class

FR-E740-016 to 095 FR-E740-120, 170

Jumper

R/L1 S/L2 T/L3

Screw size (M4)

Jumper

FR-E740-230, 300

Jumper

Power supply

Screw size

Screw size (230: M4/300: M5)

R/L1 S/L2 T/L3

Screw size

(230: M4/300: M5)

(M4)

MotorPower supply

Motor

Single-phase 200V class

FR-E720S-008 to 030 FR-E720S-050 to 110

Screw size (M3.5)

Jumpe

Screw size (M4)

R/L1 S/L2 T/L3

Jumper

Screw size (M4)

L1 N

MotorPower supply

Screw size

(M4)

L1 N

Screw size

(M3.5)

MotorPower supply

Power supply

Screw size

(M4)

Motor

NOTE

 Make sure the power cables are connected to the R/L1, S/L2, T/L3. (Phase need not be matched.) Never connect the

power cable to the U, V, W of the inverter. Doing so will damage the inverter.

 Connect the motor to U, V, W. Turning ON the forward rotation switch (signal) at this time rotates the motor

counterclockwise when viewed from the load shaft.

Main circuit terminal specifications

2.2.3 Cables and wiring length

(1) Applied wire size

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.

The following table indicates a selection example for the wiring length of 20m.

Three-phase 400V class (when input power supply is 440V)

Crimping

Applicable Inverter

Model

FR-E740-016 to 095 M4 1.5 2-4 2-4 2 2 2 14 14 2.5 2.5 2.5

FR-E740-120 M4 1.5 5.5-4 2-4 3.5 2 3.5 12 14 4 2.5 4

FR-E740-170 M4 1.5 5.5-4 5.5-4 3.5 3.5 3.5 12 12 4 4 4

FR-E740-230 M4 1.5 5.5-4 5.5-4 5.5 5.5 8 10 10 6 6 10

FR-E740-300 M5 2.5 8-5 8-5 8 8 8 8 8 10 10 10

Ter minal

Screw

Size ∗4

Tightening

Torque

Terminal

R/L1 S/L2 T/L3

U, V, W

HIV Cables, etc. (mm2) ∗1

R/L1 S/L2 T/L3

U, V, W

Earth

(ground)

cable

Cable Size

AWG ∗2

R/L1

U, V, W

S/L2 T/L3

PVC Cables, etc. (mm2)

R/L1 S/L2 T/L3

∗3

U, V, W

Earth

(ground)

cable

Single-phase 200V class (when input power supply is 220V)

Crimping

Applicable Inverter

Model

FR-E720S-008 to 030 M3.5 1.2 2-3.5 2-3.5 2 2 2 14 14 2.5 2.5 2.5

FR-E720S-050 M4 1.5 2-4 2-4 2 2 2 14 14 2.5 2.5 2.5

FR-E720S-080 M4 1.5 2-4 2-4 2 2 2 14 14 2.5 2.5 2.5

FR-E720S-110 M4 1.5 5.5-4 2-4 3.5 2 2 12 14 4 2.5 2.5

∗1 The cable size is that of the cable (HIV cable (600V class 2 vinyl-insulated cable) etc.) with continuous maximum permissible temperature of 75°C. Assumes

that the surrounding air temperature is 50°C or less and the wiring distance is 20m or less.

∗2 The recommended cable size is that of the cable (THHW cable) with continuous maximum permissible temperature of 75°C. Assumes that the surrounding

air temperature is 40°C or less and the wiring distance is 20m or less.

(Selection example for use mainly in the United States.)

∗3 The recommended cable size is that of the cable (THHW cable) with continuous maximum permissible temperature of 70°C. Assumes that the surrounding

air temperature is 40°C or less and the wiring distance is 20m or less.

(Selection example for use mainly in Europe.)

∗4 The terminal screw size indicates the terminal size for R/L1, S/L2, T/L3, U, V, W, and a screw for earthing (grounding).

For single-phase power input, the terminal screw size indicates the size of terminal screw for L1, N, U, V, W, PR, +, -, P1 and a screw for earthing

(grounding).

Ter minal

Screw

Size ∗4

Tightening

Torque

Terminal

U, V, W

HIV Cables, etc. (mm2) ∗1

U, V, W

Earth

(ground)

cable

Cable Size

AWG ∗2

U, V, W

PVC Cables, etc. (mm2)

∗3

U, V, W

Earth

(ground)

cable

WIRING

NOTE

 Tighten the terminal screw to the specified torque. A screw that has been tighten too loosely can cause a short circuit

or malfunction. A screw that has been tighten too tightly can cause a short circuit or malfunction due to the unit

breakage.

 Use crimping terminals with insulation sleeve to wire the power supply and motor.

The line voltage drop can be calculated by the following formula:

line voltage drop [V]=

3 × wire resistance[mΩ/m] × wiring distance[m] × current[A]

1000

Use a larger diameter cable when the wiring distance is long or when it is desired to decrease the voltage drop (torque

reduction) in the low speed range.

Main circuit terminal specifications

(2) Earthing (Grounding) precautions

 Always earth (ground) the motor and inverter.

1) Purpose of earthing (grounding)

Generally, an electrical apparatus has an earth (ground) terminal, which must be connected to the ground before use.

An electrical circuit is usually insulated by an insulating material and encased. However, it is impossible to manufacture

an insulating material that can shut off a leakage current completely, and actually, a slight current flow into the case.

The purpose of earthing (grounding) the case of an electrical apparatus is to prevent operator from getting an electric

shock from this leakage current when touching it.

To avoid the influence of external noises, this earthing (grounding) is important to audio equipment, sensors, computers

and other apparatuses that handle low-level signals or operate very fast.

2) Earthing (grounding) methods and earthing (grounding) work

As described previously, earthing (grounding) is roughly classified into an electrical shock prevention type and a noise-

affected malfunction prevention type. Therefore, these two types should be discriminated clearly, and the following

work must be done to prevent the leakage current having the inverter's high frequency components from entering the

malfunction prevention type earthing (grounding):

(a)Where possible, use independent earthing (grounding) for the inverter. If independent earthing (grounding) (I) is

impossible, use joint earthing (grounding) (II) where the inverter is connected with the other equipment at an earthing (grounding) point. Joint earthing (grounding) as in (III) must be avoided as the inverter is connected with the other equipment by a common earth (ground) cable. Also a leakage current including many high frequency components flows in the earth (ground) cables of the inverter and inverter-driven motor. Therefore, they must use the independent earthing (grounding) method and be separated from the earthing (grounding) of equipment sensitive to the aforementioned noises. In a tall building, it will be a good policy to use the noise malfunction prevention type earthing (grounding) with steel frames and carry out electric shock prevention type earthing (grounding) in the independent earthing (grounding) method.

(b)This inverter must be earthed (grounded). Earthing (Grounding) must conform to the requirements of national and

local safety regulations and electrical codes. (NEC section 250, IEC 536 class 1 and other applicable standards). Use an neutral-point earthed (grounded) power supply for 400V class inverter in compliance with EN standard.

(c)Use the thickest possible earth (ground) cable. The earth (ground) cable should be of not less than the size indicated

in the table on the previous page 17.

(d)The grounding point should be as near as possible to the inverter, and the ground wire length should be as short as

possible.

(e)Run the earth (ground) cable as far away as possible from the I/O wiring of equipment sensitive to noises and run

them in parallel in the minimum distance.

Inverter

(I)Independent earthing.......Best

Other

equipment

Inverter

(II)Common earthing.......Good

Other

equipment

Inverter

(III)Common earthing.......Not allowed

Other

equipment

POINT

To be compliant with the European Directive (Low Voltage Directive), refer to the Installation Guideline.

+ 290 hidden pages

Mitsubishi Electric FR-E700, FR-E740EC Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

This section is specifically about safety matters

CONTENTS

1 OUTLINE

1.1 Product checking and parts identification

1.2 Inverter and peripheral devices

1.2.1 Peripheral devices

1.3 Removal and reinstallation of the cover

1.3.1 Front cover

1.3.2 Wiring cover

1.4 Installation of the inverter and enclosure design

1.4.1 Inverter installation environment

1.4.2 Cooling system types for inverter panel

1.4.3 Inverter placement

2 WIRING

2.1 Wiring

2.1.1 Terminal connection diagram

2.2 Main circuit terminal specifications

2.2.1 Specification of main circuit terminal

2.2.2 Terminal arrangement of the main circuit terminal, power supply and the motor wiring

2.2.3 Cables and wiring length