Mitsubishi Electronics FR-E700 User Manual

INVERTER FR-E700

INSTRUCTION MANUAL (Applied)

FL remote communication function

FR-E720-0.1KNF to 15KNF

OUTLINE

FR-E740-0.4KNF to 15KNF

WIRING

PRECAUTIONS FOR

USE OF THE INVERTER

FL REMOTE

COMMUNICATION FUNCTION

PARAMETERS

TROUBLESHOOTING

PRECAUTIONS FOR

MAINTENANCE AND INSPECTION

SPECIFICATIONS

Thank you for choosing this Mitsubishi Inverter. This Instruction Manual (Applied) provides instructions for advanced use of the FR-E700 series FL remote type inverters. Incorrect handling might cause an unexpected fault. Before using the inverter, always read this Instruction Manual and the Instruction Manual (Basic) [IB-0600397ENG] 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 (Basic) 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

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.

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.

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 highvoltage 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 or inspection, 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 or inspection 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 change the cooling fan while power is ON. It is dangerous to change 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, 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

2. Fire Prevention

CAUTION

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.

z If the inverter has become faulty, the inverter power must

be switched OFF. A continuous flow of large current could cause a fire.

z When using a brake resistor, a sequence that will turn OFF

power when a fault signal is output must be configured. Otherwise the brake resistor may overheat due to damage of the brake transistor and possibly cause a fire.

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

and N/-. Doing so could cause a fire.

A-1

3.Injury Prevention

CAUTION

z The voltage applied to each terminal must be the ones

specified in the Instruction Manual. Otherwise burst,

damage, etc. may occur.

z The cables must be connected to the correct terminals.

Otherwise burst, damage, etc. may occur.

z Polarity must be correct. 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 the following points must be noted to prevent an

accidental failure, injury, electric shock, etc.

(1) Transportation and Mounting

CAUTION

z The product must be transported in correct method that

corresponds to the weight. Failure to do so may lead to

injuries.

z Do not stack the boxes containing inverters higher than

the number recommended.

z The product must be installed to the position where

withstands the weight of the product 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 The inverter mounting orientation must be correct.

z Foreign conductive objects must be prevented from

entering the inverter. That includes screws and metal

fragments or other flammable substance such as oil.

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

subject it to impact.

z The inverter must be used under the following

environment. 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 1,000m above sea level.

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 affects the rotation direction of the motor.

(3) Trial run

CAUTION

z Before starting operation, each parameter must be

confirmed and adjusted. A failure to do so may cause

some machines to make unexpected motions.

(4) Usage

WARNING

z Any person must stay away from the equipment when the

retry function is set as it will restart suddenly after trip.

z 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.

z 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.

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 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 The effect of electromagnetic interference must be

reduced by using a noise filter or by other means.

Otherwise nearby electronic equipment may be affected.

z 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.

z 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.

z 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.

z 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.

z 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.

z Before running an inverter which had been stored for a long

period, inspection and test operation must be performed.

z For prevention of damage due to static electricity, nearby

metal must be touched before touching this product to

eliminate static electricity from your body.

A-2

(5) Emergency stop

CAUTION

z 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.

z 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.

z 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

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 The inverter must be treated as industrial waste.

General instruction

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.

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 enclosure................................................................................. 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............... 15

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

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

2.3.1 Control circuit terminal .................................................................................................................. 20

2.3.2 Wiring of control circuit ................................................................................................................. 21

2.3.3 Connecting the 24V external power supply .................................................................................. 23

2.3.4 Safety stop function ...................................................................................................................... 24

2.4 Connection of stand-alone option unit ............................................. 25

2.4.1 Connection of a dedicated external brake resistor (MRS type, MYS type, FR-ABR) ................... 25

2.4.2 Connection of the brake unit (FR-BU2) ........................................................................................ 27

2.4.3 Connection of the DC reactor (FR-HEL)....................................................................................... 28

3 PRECAUTIONS FOR USE OF THE INVERTER 29

3.1 EMC and leakage currents................................................................ 30

3.1.1 Leakage currents and countermeasures ...................................................................................... 30

3.1.2 EMC measures ............................................................................................................................. 32

3.1.3 Power supply harmonics............................................................................................................... 34

3.1.4 Harmonic suppression guideline in Japan ....................................................................................35

3.2 Installation of power factor improving reactor ................................ 37

3.3 Power-OFF and magnetic contactor (MC)......................................... 38

3.4 Inverter-driven 400V class motor ..................................................... 39

3.5 Precautions for use of the inverter ................................................... 40

3.6 Failsafe of the system which uses the inverter ............................... 42

4 FL REMOTE COMMUNICATION FUNCTION 45

4.1 FL remote communication specification.......................................... 46

4.2 Node address setting ........................................................................46

4.3 Wiring .................................................................................................47

4.3.1 Connecting to the network ............................................................................................................ 47

4.3.2 Precautions for system configuration ........................................................................................... 47

4.3.3 Cable specifications...................................................................................................................... 47

4.3.4 Connecting the FL-net dedicated cable........................................................................................ 48

CONTENTS

4.4 LED status ......................................................................................... 49

4.4.1 Device status LED (DEV), remote status LED (RMT) .................................................................. 49

4.4.2 Transmitting (TX)/receiving (RX) LED .......................................................................................... 49

4.4.3 Communication set status LED (CHG).........................................................................................49

4.5 Operation mode setting.....................................................................50

4.5.1 Operation mode basics................................................................................................................. 50

4.5.2 PU operation interlock .................................................................................................................. 51

4.5.3 Operation availability in each operation mode..............................................................................51

4.6 FL remote communication ................................................................ 52

4.6.1 Overview of FL remote communication ........................................................................................52

4.6.2 FL remote data communication types .......................................................................................... 52

4.7 Cyclic transmission ........................................................................... 53

4.7.1 Common memory ......................................................................................................................... 54

4.7.2 Output data (master to inverter) ................................................................................................... 57

4.7.3 Input data (inverter to master) ...................................................................................................... 59

4.8 Message transmission.......................................................................61

4.8.1 Error response at word block read/write ....................................................................................... 61

4.8.2 Word block read/write ................................................................................................................... 62

4.8.3 Network parameter read ............................................................................................................... 68

4.8.4 Log data read ............................................................................................................................... 69

4.8.5 Log data clear............................................................................................................................... 69

4.8.6 Profile read ................................................................................................................................... 70

4.8.7 Message loopback........................................................................................................................ 71

5 PARAMETERS 73

5.1 Operation panel................................................................................. 74

5.1.1 Names and functions of the operation panel ................................................................................ 74

5.1.2 Basic operation (factory setting) ................................................................................................... 75

5.1.3 Changing the parameter setting value.......................................................................................... 76

5.1.4 Setting dial push ........................................................................................................................... 77

5.2 Parameter list ................................................................................... 78

5.2.1 Parameter list................................................................................................................................ 78

5.3 Control mode.................................................................................... 92

5.3.1 Changing the control method (Pr. 80, Pr. 81, Pr. 800) ................................................................ 93

5.4 Adjustment of the output torque (current) of the motor................. 94

5.4.1 Manual torque boost (Pr. 0, Pr. 46) ............................................................................................. 94

5.4.2 Advanced magnetic flux vector control (Pr. 71, Pr. 80, Pr. 81, Pr.89, Pr. 800) .......................... 95

5.4.3 General-purpose magnetic flux vector control (Pr. 71, Pr. 80, Pr. 81, Pr. 800) ........................... 98

5.4.4 Slip compensation (Pr. 245 to Pr. 247) ..................................................................................... 100

5.4.5 Stall prevention operation (Pr. 22, Pr. 23, Pr. 48, Pr. 66, Pr. 156, Pr. 157, Pr. 277) ................. 101

5.5 Limiting the output frequency ....................................................... 105

5.5.1 Maximum/minimum frequency (Pr. 1, Pr. 2, Pr. 18)................................................................... 105

5.5.2 Avoiding mechanical resonance points (frequency jumps) (Pr. 31 to Pr. 36) ............................ 106

5.6 V/F pattern...................................................................................... 107

5.6.1 Base frequency, voltage (Pr. 3, Pr. 19, Pr. 47) .......................................................................... 107

5.6.2 Load pattern selection (Pr. 14) .................................................................................................. 109

5.7 Frequency setting by input signals ............................................... 111

5.7.1 Operation by multi-speed operation (Pr. 4 to Pr. 6, Pr. 24 to Pr. 27) ......................................... 111

5.7.2 Remote setting function (Pr. 59)................................................................................................ 113

5.8 Setting of acceleration/deceleration time and acceleration/

deceleration pattern ...................................................................... 116

5.8.1 Setting of the acceleration and deceleration time

(Pr. 7, Pr. 8, Pr. 20, Pr. 21, Pr. 44, Pr. 45, Pr. 147) .................................................................. 116

5.8.2 Starting frequency and start-time hold function (Pr. 13, Pr. 571)............................................... 119

5.8.3 Acceleration/deceleration pattern (Pr. 29) ................................................................................. 120

5.8.4 Shortest acceleration/deceleration (automatic acceleration/deceleration)

(Pr. 61 to Pr. 63, Pr. 292, Pr. 293)............................................................................................. 121

5.9 Selection and protection of a motor ............................................. 123

5.9.1 Motor overheat protection (Electronic thermal O/L relay) (Pr. 9, Pr. 51) ................................... 123

5.9.2 Applied motor (Pr. 71, Pr. 450).................................................................................................. 125

5.9.3 Exhibiting the best performance for the motor (offline auto tuning)

(Pr. 71, Pr. 80 to Pr. 84, Pr. 90 to Pr. 94, Pr. 96, Pr. 859) ......................................................... 127

III

5.10 Motor brake and stop operation..................................................... 135

5.10.1 DC injection brake (Pr. 10 to Pr. 12).......................................................................................... 135

5.10.2 Selection of a regenerative brake (Pr. 30, Pr. 70) ..................................................................... 136

5.10.3 Stop selection (Pr. 250) ............................................................................................................. 138

5.10.4 Stop-on contact control function (Pr. 6, Pr. 48, Pr. 270, Pr. 275, Pr. 276) ................................ 139

5.11 I/O signal control ............................................................................ 141

5.11.1 Operation of start signals (STF, STR signal)............................................................................. 141

5.11.2 Reset cancel signal (READY signal) and inverter running signal (RUN signal) ........................ 142

5.11.3 Second function selection signal (RT signal)............................................................................. 143

5.11.4 Inverter output shutoff signal (MRS signal, Pr. 17).................................................................... 143

5.11.5 Detection of output frequency (SU, FU signal, Pr. 41 to Pr. 43) ................................................ 144

5.11.6 Output current detection function (Y12 signal, Y13 signal, Pr. 150 to Pr. 153) ......................... 145

5.12 Monitor display and monitor output signal .................................... 146

5.12.1 Speed display and speed setting (Pr. 37).................................................................................. 146

5.12.2 Monitor display selection of the operation panel

(Pr. 52, Pr. 170, Pr. 171, Pr. 268, Pr. 563, Pr. 564)................................................................... 147

CONTENTS

5.13 Operation selection at power failure and instantaneous power

failure.............................................................................................. 151

5.13.1 Automatic restart after instantaneous power failure/flying start

(Pr. 57, Pr. 58, Pr. 96, Pr. 162, Pr. 165, Pr. 298, Pr. 299, Pr. 611) ........................................... 151

5.13.2 Power-failure deceleration stop function (Pr. 261) .................................................................... 156

5.14 Operation setting at fault occurrence ........................................... 158

5.14.1 Retry function (Pr. 65, Pr. 67 to Pr. 69) ..................................................................................... 158

5.14.2 Input/output phase loss protection selection (Pr. 251, Pr. 872) ................................................. 160

5.14.3 Earth (ground) fault detection at start (Pr. 249) ......................................................................... 160

5.14.4 Display and erasure of communication error occurrence count (Pr. 501) ................................. 161

5.15 Energy saving operation................................................................. 162

5.15.1 Optimum excitation control (Pr. 60) ........................................................................................... 162

5.16 Motor noise, EMI measures, mechanical resonance .................... 163

5.16.1 PWM carrier frequency and soft-PWM control (Pr. 72, Pr. 240)................................................ 163

5.16.2 Speed smoothing control (Pr. 653)............................................................................................ 164

5.17 Misoperation prevention and parameter setting restriction......... 165

5.17.1 Reset selection/PU stop selection (Pr. 75) ................................................................................ 165

5.17.2 Parameter write disable selection (Pr. 77)................................................................................. 166

5.17.3 Reverse rotation prevention selection (Pr. 78) .......................................................................... 167

5.17.4 Extended parameter display and user group function (Pr. 160, Pr. 172 to Pr. 174) .................. 167

5.17.5 Password function (Pr. 296, Pr. 297)......................................................................................... 169

5.18 Special operation and frequency control ...................................... 171

5.18.1 Jog operation (Pr. 15, Pr. 16) .................................................................................................... 171

5.18.2 Droop control (Pr. 286, Pr. 287) ................................................................................................ 173

5.18.3 Regeneration avoidance function (Pr. 665, Pr. 882, Pr. 883, Pr. 885, Pr. 886)......................... 174

5.19 Useful functions ............................................................................. 176

5.19.1 Cooling fan operation selection (Pr. 244) .................................................................................. 176

5.19.2 Display of the life of the inverter parts (Pr. 255 to Pr. 259)........................................................ 177

5.19.3 Maintenance timer alarm (Pr. 503, Pr. 504)............................................................................... 180

5.19.4 Free parameter (Pr. 888, Pr. 889) ............................................................................................. 181

5.20 Setting from the operation panel .................................................. 182

5.20.1 RUN key rotation direction selection (Pr. 40)............................................................................. 182

5.20.2 Operation panel frequency setting/key lock operation selection (Pr. 161)................................. 183

5.20.3 Magnitude of frequency change setting (Pr. 295)...................................................................... 185

5.21 Parameter clear/ All parameter clear ............................................ 186

5.22 Initial value change list ................................................................. 187

5.23 Check and clear of the faults history ............................................ 188

6 TROUBLESHOOTING 191

6.1 Reset method of protective function ............................................. 192

6.2 List of fault or alarm indications .................................................... 193

6.3 Causes and corrective actions....................................................... 194

6.4 Correspondences between digital and actual characters ............ 203

6.5 Check first when you have a trouble.............................................. 204

6.5.1 Motor does not start.................................................................................................................... 204

6.5.2 Motor or machine is making abnormal acoustic noise................................................................ 205

6.5.3 Inverter generates abnormal noise............................................................................................. 205

6.5.4 Motor generates heat abnormally............................................................................................... 206

6.5.5 Motor rotates in the opposite direction........................................................................................ 206

6.5.6 Speed greatly differs from the setting......................................................................................... 206

6.5.7 Acceleration/deceleration is not smooth ..................................................................................... 206

6.5.8 Speed varies during operation .................................................................................................... 207

6.5.9 Operation mode is not changed properly.................................................................................... 207

6.5.10 Operation panel display is not operating .................................................................................... 207

6.5.11 Motor current is too large............................................................................................................ 208

6.5.12 Speed does not accelerate......................................................................................................... 208

6.5.13 Unable to write parameter setting............................................................................................... 208

6.5.14 Troubleshooting in FL remote communication............................................................................ 209

7 PRECAUTIONS FOR MAINTENANCE AND INSPECTION 211

7.1 Inspection items.............................................................................. 212

7.1.1 Daily inspection .......................................................................................................................... 212

7.1.2 Periodic inspection ..................................................................................................................... 212

7.1.3 Daily and periodic inspection...................................................................................................... 213

7.1.4 Display of the life of the inverter parts ........................................................................................ 214

7.1.5 Checking the inverter and converter modules ............................................................................ 214

7.1.6 Cleaning ..................................................................................................................................... 214

7.1.7 Replacement of parts ................................................................................................................. 215

7.2 Measurement of main circuit voltages, currents and powers ....... 218

7.2.1 Measurement of powers ............................................................................................................. 220

7.2.2 Measurement of voltages and use of PT.................................................................................... 220

7.2.3 Measurement of currents............................................................................................................ 221

7.2.4 Use of CT and transducer .......................................................................................................... 221

7.2.5 Measurement of inverter input power factor ............................................................................... 221

7.2.6 Measurement of converter output voltage (across terminals P and N) ...................................... 221

7.2.7 Insulation resistance test using megger ..................................................................................... 222

7.2.8 Pressure test .............................................................................................................................. 222

CONTENTS

8 SPECIFICATIONS 223

8.1 Rating............................................................................................... 224

8.2 Common specifications................................................................... 225

8.3 Outline dimension drawings............................................................ 226

APPENDIX 231

Appendix 1 Specification change ................................................................................ 232

Appendix 1-1 SERIAL number check .................................................................................................... 232

Appendix 1-2 Changed Functions ......................................................................................................... 232

Appendix 2 Index........................................................................................................... 233

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

Inverter ........................................... Mitsubishi inverter FR-E700 series FL remote type

FR-E700-NF .................................. Mitsubishi inverter FR-E700 series FL remote type

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

PU operation .................................. Operation using the operation panel

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

Mitsubishi constant-torque motor ... SF-HRCA

Company and product names herein are the trademarks and registered trademarks of their

respective owners.

<Mark>

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 model

E720 2.2 KNFFR

No. Voltage class

E720

E740

Operation panel

(Refer to page 74)

Node address switch

(Refer to page 46)

FL remote communication connector

(Refer to page 48)

Front cover

(Refer to page 5)

Three-phase 200V class

Three-phase 400V class

Represents the inverter capacity [kW]

Cooling fan

(Refer to page 215)

LED (operation status indication)

(Refer to page 49)

Control circuit terminal block

(Refer to page 20)

Main circuit terminal block

(Refer to page 15)

Capacity plate *

FR-E720-2.2KNF

Inverter model

Example of FR-E720-2.2KNF

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 226)

Rating plate *

Inverter model

Input rating

Output rating

Serial number

Combed shaped wiring cover

(Refer to page 7)

FR-E720-2.2KNF

• Accessory

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

Capacity Quantity

FR-E720-1.5KNF to 3.7KNF, FR-E740-1.5KNF to 3.7KNF 1

FR-E720-5.5KNF to 15KNF, FR-E740-5.5KNF to 15KNF 2

Harmonic suppression guideline (when inverters are used in Japan)

All models of general-purpose inverters used by specific consumers are covered by "Harmonic suppression guideline for consumers who receive high voltage or special high voltage". (For further details, refer to page 35.)

Refer to the Instruction Manual (Basic)

)

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 224)

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.

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 38)

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 P/+ and P1 to connect the DC reactor.

EMC filter (ferrite core) *

(FR-BSF01, FR-BLF)

Install an EMC filter (ferrite core) 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.

(Refer to page 4)

DC reactor (FR-HEL) *

Master module

FL-net dedicated cable

Inverter (FR-E700-NF)

P1P/+

EMC filter (capacitor) *

(FR-BIF)

Reduces the radio noise.

Inverter and peripheral devices

R/L1 S/L2T/L3

P/+

Earth (Ground)

N/-P/+

Approved safety relay module

Required for compliance with safety standard.

S1 S2

Brake resistor (FR-ABR, MRS type, MYS type)

Braking capability can be improved. (0.4K or higher) Always install a thermal relay when using a brake resistor whose capacity is 11K or higher.

EMC filter (ferrite core)

(FR-BSF01, FR-BLF)

Install to reduce the 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.

(Refer to page 25)

an EMC filter (ferrite core)

OUTLINE

Motor

* Filterpack (FR-BFP2), which contains DC reactor and EMC filter in one package, is also available.

Brake unit (FR-BU2)

The regenerative braking capability of the inverter can be

P/+

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

exhibited fully. Install this as required.

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.

NOTE

 Up to 64 inverters can be connected when using FL remote communication.  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)

y 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)

 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 options among the capacitor type EMC filter FR-BIF (for use in the input side only), the ferrite core type EMC filter FR-BSF01/FR-BLF, filterpack, and EMC filter to minimize the interference. (Refer to page 32).

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

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.

Earth (Ground)

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:

Moulded Case Circuit Breaker

(MCCB) ∗1

(ELB) ∗2 (NF, NV type)

Reactor connection Reactor connection

Applicable Inverter

Model

Motor

Output

(kW)

or Earth Leakage Circuit Breaker

without with without with

FR-E720-0.1KNF 0.1 5A 5A S-N10 S-N10 0.4K ∗4

FR-E720-0.2KNF 0.2 5A 5A S-N10 S-N10 0.4K ∗4

FR-E720-0.4KNF 0.4 5A 5A S-N10 S-N10 0.4K 0.4K FR-E720-0.75KNF 0.75 10A 10A S-N10 S-N10 0.75K 0.75K FR-E720-1.5KNF 1.5 15A 15A S-N10 S-N10 1.5K 1.5K FR-E720-2.2KNF 2.2 20A 15A S-N10 S-N10 2.2K 2.2K FR-E720-3.7KNF 3.7 30A 30A S-N20, S-N21 S-N10 3.7K 3.7K FR-E720-5.5KNF 5.5 50A 40A S-N25 S-N20, S-N21 5.5K 5.5K

Three-Phase 200V

FR-E720-7.5KNF 7.5 60A 50A S-N25 S-N25 7.5K 7.5K FR-E720-11KNF 11 75A 75A S-N35 S-N35 11K 11K FR-E720-15KNF 15 125A 100A S-N50 S-N50 15K 15K FR-E740-0.4KNF 0.4 5A 5A S-N10 S-N10 H0.4K H0.4K FR-E740-0.75KNF 0.75 5A 5A S-N10 S-N10 H0.75K H0.75K FR-E740-1.5KNF 1.5 10A 10A S-N10 S-N10 H1.5K H1.5K FR-E740-2.2KNF 2.2 15A 10A S-N10 S-N10 H2.2K H2.2K FR-E740-3.7KNF 3.7 20A 15A S-N10 S-N10 H3.7K H3.7K FR-E740-5.5KNF 5.5 30A 20A S-N20, S-N21 S-N11, S-N12 H5.5K H5.5K FR-E740-7.5KNF 7.5 30A 30A S-N20, S-N21 S-N20, S-N21 H7.5K H7.5K

Three-Phase 400V

FR-E740-11KNF 11 50A 40A S-N20, S-N21 S-N20, S-N21 H11K H11K FR-E740-15KNF 15 60A 50A S-N25 S-N20, S-N21 H15K H15K

Magnetic Contactor (MC)

∗3

Reactor

FR-HAL FR-HEL

0.4K

∗4

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

Install one MCCB per inverter.

∗2 For the use in the United States or Canada, select a UL and cUL certified fuse with Class T fuse equivalent cut-off

speed or faster with the appropriate rating for branch circuit protection. Alternatively, select a UL489 molded case circuit breaker (MCCB).

∗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.

MCCB INV

NOTE

 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 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.

Removal and reinstallation of the cover

1.3 Removal and reinstallation of the cover

1.3.1 Front cover

FR-E720-3.7KNF or lower, FR-E740-7.5KNF or lower

zRemoval (Example of FR-E720-0.75KNF)

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

zReinstallation (Example of FR-E720-0.75KNF)

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

OUTLINE

Removal and reinstallation of the cover

FR-E720-5.5KNF or higher, FR-E740-11KNF or higher

zRemoval (Example of FR-E720-5.5KNF)

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-E720-5.5KNF)

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-E720-0.1KNF to 0.75KNF

Guide

Wiring cove

Example of FR-E720-0.75KNF Example of FR-E740-3.7KNF

FR-E740-5.5KNF, 7.5KNF

FR-E720-1.5KNF to 3.7KNF

FR-E740-0.4KNF to 3.7KNF

Wiring cove

FR-E720-5.5KNF to 15KNF

FR-E740-11KNF, 15KNF

Guide

OUTLINE

Guid

Wiring cover

Dent

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

pull toward you.

Example of FR-E740-5.5KNF Example of FR-E740-11KNF

Guide

Wiring cover

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.

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 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-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 Enclosure 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-E720-0.1KNF to 0.75KNF  FR-E720-1.5KNF or higher

 FR-E740-0.4KNF or higher

Front cover

Wiring cover

Note

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

measure.

 Install the inverter vertically.

 For heat dissipation and maintenance, take at least the clearances

shown in the table below from the inverter to the other devices and to

the enclosure surface.

Measurement position

5cm

Measurement position

-10 C to +50 C (non-freezing)

∗1 Take 5cm or more clearances for 5.5K or higher.

∗2 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).

5cm

1cm or

∗1, ∗2

10cm or more

1cm or

∗1, ∗2

10cm or more

1cm or

∗1

Refer to the clearances

on the left.

Vertical

(2) 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.

OUTLINE

Installation of the inverter and enclosure design

(3) 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.

(4) Arrangement of ventilation fan and inverter

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.)

(a) Horizontal arrangement

InverterInverter

Enclosure Enclosure

Arrangement of multiple inverters

Inverter Inverter

Inverter

Guide Guide

Inverter

(b) Vertical arrangement

Guide

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 ....................................... 25

Wiring

2.1 Wiring

2.1.1 Terminal connection diagram

Sink logic

Main circuit terminal

Control circuit terminal

MCCB MC

Three-phase AC power supply

24V external power supply

Safety stop signal

Safety stop input (Channel 1)

Safety stop input (Channel 2)

Safety stop input common

Earth

(Ground)

24V power supply

Common terminal

Shorting

wire

*1. DC reactor (FR-HEL)

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

Earth

(Ground)

Jumper

R/L1 S/L2 T/L3

P1 P/+

Inrush current limit circuit

Main circuit

Control circuit

+24

Output shutoff

circuit

24V

N/-

Brake unit

(Option)

*2 A brake transistor is not built-in to the 0.1K

and 0.2K.

*3 Brake resistor (FR-ABR, MRS, MYS type)

Install a thermal relay to prevent an overheat and burnout of the brake resistor. (The brake resistor cannot be connected to the 0.1K and 0.2K.)

Open collector output

Open collector output Y0 (Safety monitor output 2)

Open collector output common Sink/source common

Motor

Earth (Ground)

Node address setting

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.

FL remote

communication

connector

X10

D1 D2

D3 D4

LED (operation status display)

Communication setting status LED (CHG)

D1: D2: Device status LED (DEV) D3: Reception/transmission LED (TX/RX) D4: Remote status LED (RMT)

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

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

P/+, PR Brake resistor connection

P/+, N/- Brake unit connection Connect the brake unit (FR-BU2).

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

AC power input Connect to the commercial power supply.

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

Terminal Name Description

Connect a brake resistor (FR-ABR, MRS type, MYS type) across terminals P/+ and

PR.

(The brake resistor cannot be connected to the 0.1K or 0.2K.)

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

Three-phase 200V class

FR-E720-0.1KNF to 0.75KNF FR-E720-1.5KNF to 3.7KNF

N/-

Jumpe

N/-

P/+ PR

Jumper

P/+

R/L1 S/L2 T/L3

MotorPower supply

FR-E720-5.5KNF, 7.5KNF FR-E720-11KNF, 15KNF

R/L1 S/L2 T/L3

N/-

P/+

Jumper

R/L1 S/L2 T/L3

Power supply

Motor

Power supply

N/-

P/+

Jumper

Motor

MotorPower supply

WIRING

Main circuit terminal specifications

Three-phase 400V class

FR-E740-0.4KNF to 3.7KNF FR-E740-5.5KNF, 7.5KNF

N/-

P/+

FR-E740-11KNF, 15KNF

N/-

Jumper

Power supply

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.

Jumper

R/L1 S/L2 T/L3

P/+

Motor

MotorPower supply

Jumper

N/-

P/+

R/L1 S/L2 T/L3

MotorPower supply

Main circuit terminal specifications

2.2.3 Cables and wiring length

(1) Applicable cable size

Select the recommended cable size to ensure that a voltage drop will be 2% or less.

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 200V class (when input power supply is 220V)

Crimping

Applicable Inverter

Model

Termin al

Screw

Size ∗4

Tightening

Torque

Terminal

R/L1 S/L2

U, V, W

T/L3

FR-E720-0.1KNF to 0.75KNF M3.5 1.2 2-3.5 2-3.5 2 2 2 14 14 2.5 2.5 2.5

FR-E720-1.5KNF, 2.2KNF M4 1.5 2-4 2-4 2 2 2 14 14 2.5 2.5 2.5

FR-E720-3.7KNF M4 1.5 5.5-4 5.5-4 3.5 3.5 3.5 12 12 4 4 4

FR-E720-5.5KNF M5 2.5 5.5-5 5.5-5 5.5 5.5 5.5 10 10 6 6 6

FR-E720-7.5KNF M5 2.5 14-5 8-5 14 8 5.5 6 8 16 10 6

FR-E720-11KNF M5 2.5 14-5 14-5 14 14 14 6 6 16 16 16

FR-E720-15KNF M6(M5) 4.4 22-6 22-6 22 22 14 4 4 25 25 16

HIV Cables, etc. (mm2)

∗1

R/L1 S/L2 T/L3

U, V, W

Earthing

cable

Cable Size

AWG ∗2

R/L1 S/L2

U, V, W

T/L3

PVC Cables, etc. (mm2)

∗3

R/L1 S/L2 T/L3

U, V, W

Earthing

cable

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

Crimping

Applicable Inverter

Model

Termin al

Screw

Size ∗4

Tightening

Torque

Terminal

R/L1 S/L2

U, V, W

T/L3

FR-E740-0.4KNF to 3.7KNF M4 1.5 2-4 2-4 2 2 2 14 14 2.5 2.5 2.5

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

FR-E740-7.5KNF M4 1.5 5.5-4 5.5-4 3.5 3.5 3.5 12 12 4 4 4

FR-E740-11KNF M4 1.5 5.5-4 5.5-4 5.5 5.5 8 10 10 6 6 10

FR-E740-15KNF M5 2.5 8-5 8-5 8 8 8 8 8 10 10 10

∗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 (PVC 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).

A screw for earthing (grounding) of the FR-E720-15KNF is indicated in ( ).R/L1, S/L2P/N/

HIV Cables, etc. (mm2)

∗1

R/L1 S/L2 T/L3

U, V, W

Earthing

cable

Cable Size

AWG ∗2

R/L1

U, V, W

S/L2 T/L3

PVC Cables, etc. (mm2)

∗3

R/L1 S/L2 T/L3

U, V, W

Earthing

cable

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.

WIRING

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)If possible, use (l) independent earthing (grounding) in figure below for the inverter. If independent earthing

(grounding) is not available, use (ll) joint earthing (grounding) in the figure below which the inverter is connected with the other equipment at an earthing (grounding) point. The (lll) common earthing (grounding) as in the figure below, which inverter shares a common earth (ground) cable with the other equipment, must be avoided. A leakage current including many high frequency components flows in the earth (ground) cables of the inverter and inverter-driven motor. Therefore, use the independent earthing (grounding) and separated the earthing (grounding) cable of the inverter from equipments sensitive to EMI. In a high building, it may be effective to use the EMI prevention type earthing (grounding) connecting to an iron structure frame, and electric shock prevention type earthing (grounding) with the independent earthing (grounding) together.

(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 EU Directive (Low Voltage Directive), refer to the Instruction Manual (Basic).

Main circuit terminal specifications

(3) Total wiring length

The overall wiring length for connection of a single motor or multiple motors should be within the value in the table

below.

Pr. 72 PWM frequency selection

1 (1kHz) or less

(2kHz to 14.5kHz)

Setting

(carrier frequency)

200V class 200m 200m 300m 500m 500m 500m 500m

400V class - - 200m 200m 300m 500m 500m

2 to15

200V class 30m 100m 200m 300m 500m 500m 500m

400V class - - 30m 100m 200m 300m 500m

0.1K 0.2K 0.4K 0.75K 1.5K 2.2K

Total wiring length (3.7K or higher)

500m or less

300m

300m+300m=600m

3.7K

or Higher

When driving a 400V class motor by the inverter, surge voltages attributable to the wiring constants may occur at the motor

terminals, deteriorating the insulation of the motor. In this case, refer to page 39.

NOTE

 Especially for long-distance wiring, the inverter may be affected by a charging current caused by the stray

capacitances of the wiring, leading to a malfunction of the overcurrent protective function, fast response current limit function, or stall prevention function or a malfunction or fault of the equipment connected on the inverter output side. If malfunction of fast-response current limit function occurs, disable this function. If malfunction of stall prevention function occurs, increase the stall level. (Refer to page 101 for Pr. 22 Stall prevention operation level and Pr. 156 Stall prevention

operation selection )

 Refer to page 163 for details of Pr. 72 PWM frequency selection.  When using the automatic restart after instantaneous power failure function with wiring length exceeding 100m,

select without frequency search (Pr. 162 = "1 (initial value), 11"). (Refer to page 151)

WIRING

+ 212 hidden pages

Mitsubishi Electronics FR-E700 User 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 enclosure

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