Mitsubishi FR-A846-00038, FR-A846-00170, FR-A846-00126, FR-A846-00052, FR-A846-00250 Instruction Manual

...

INVERTER FR-A800

FR-A806 (IP55/UL Type 12 SPECIFICATIONS) INSTRUCTION MANUAL (HARDWARE)

High functionality and high performance

FR-A846-00023(0.4K) to 03610(132K)

INTRODUCTION

INSTALLATION AND WIRING

PRECAUTIONS FOR USE OF

THE INVERTER

PROTECTIVE FUNCTIONS

PRECAUTIONS FOR

MAINTENANCE AND

INSPECTION

SPECIFICATIONS

Thank you for choosing this Mitsubishi inverter.

Warning

Caution

This Instruction Manual describes handling and cautions about the hardware, such as installation and wiring, for the FR-A806(IP55/ UL Type12 specification product) that are different from the FR-A800. Information about the software, such as basic operations and parameters, is described in the FR-A800 Instruction Manual (Detailed) in the CD-ROM enclosed with the product. In addition to this manual, please read the manuals in the enclosed CD-ROM carefully. Do not use this product until you have a full knowledge of the equipment, safety information and instructions. Please forward this Instruction Manual to the end user.

Safety Instructions

Do not attempt to install, operate, maintain or inspect the product until you have read through this Instruction Manual (Detailed) 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. Installation, operation, maintenance and inspection must be performed by qualified personnel. Here, an expert means a person who meets all the conditions below.

• A person who took a proper engineering training. Such training may be available at your local Mitsubishi Electric office. Contact your local sales office for schedules and locations.

• A person who can access operating manuals for the protective devices (e.g. light curtain) connected to the safety control system. A person who has read and familiarized himself/herself with the manuals.

In this Instruction Manual (Detailed), the safety instruction levels are classified into "Warning" and "Caution"

Incorrect handling may cause hazardous conditions, resulting in death or severe injury.

Incorrect handling may cause hazardous conditions, resulting in medium or slight injury, or may cause only material damage.

The level may even lead to a serious

consequence according to conditions. Both instruction levels must be followed because these are important to personal safety.

 Electric Shock Prevention

Warning

 While the inverter power is ON, do not remove the front

cover or the wiring cover. Do not run the inverter with the front cover or the wiring cover removed. Otherwise you may access the exposed high voltage terminals or the charging part of the circuitry and get an electric shock.

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

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

 Before wiring or inspection, LED indication of the operation

panel must be switched 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 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.

 An PM motor is a synchronous motor with high-

performance magnets embedded in the rotor. Motor terminals holds high-voltage while the motor is running even after the inverter power is turned OFF. Before wiring or inspection, the motor must be confirmed to be stopped. In an application, such as fan and blower, where the motor is driven by the load, a low-voltage manual motor starter must be connected at the inverter's output side, and wiring and inspection must be performed while the motor starter is open. Otherwise you may get an electric shock.

 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 may cause a fire.

 If the inverter has become faulty, the inverter power must be

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

 Resistors cannot be used. Do not connect a resistor directly

to the DC terminals P/+ and N/-. Doing so could cause a fire.

 Be sure to perform daily and periodic inspections as

specified in the Instruction Manual. If a product is used without any inspection, a burst, breakage, or a fire may occur.

 Injury Prevention

Caution

 The voltage applied to each terminal must be the ones

specified in the Instruction Manual. Otherwise burst, damage, etc. may occur.

 The cables must be connected to the correct terminals.

Otherwise burst, damage, etc. may occur.

 The polarity (+ and -) must be correct. Otherwise burst,

damage, etc. may occur.

 While power is ON or for some time after power-OFF, do not

touch the inverter as it will be extremely hot. Touching these devices may cause a burn.

Safety Instructions

 Additional Instructions The following instructions must be also followed. If the product is handled incorrectly, it may cause unexpected fault, an injury, or an electric shock.

Caution

Transportation and Mounting  Any person who is opening a package using a sharp object,

such as a knife and cutter, must wear gloves to prevent injuries caused by the edge of the sharp object.

 The product must be transported in correct method that

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

 Do not stand or rest heavy objects on the product.  Do not stack the boxes containing inverters higher than the

number recommended.

 When carrying the inverter, do not hold it by the front cover;

it may fall off or fail.

 During installation, caution must be taken not to drop the

inverter as doing so may cause injuries.

 The product must be installed on the surface that

withstands the weight of the inverter.

 Do not install the product on a hot surface.  The mounting orientation of the inverter must be correct.  The inverter must be installed on a strong surface securely

with screws so that it will not drop.

 Do not install or operate the inverter if it is damaged or has

parts missing.

 Foreign conductive objects must be prevented from

entering the inverter. That includes screws and metal fragments or other flammable substance such as oil.

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

subject it to impact.

 The ambient temperature must be between -10 and +40°C

(non-freezing). Otherwise the inverter may be damaged.

 The ambient humidity must be 95%RH or less (non-

condensing). Otherwise the inverter may be damaged. (Refer to page 18 for details.)

 The storage temperature (applicable for a short time, e.g.

during transit) must be between -20 and +65°C. Otherwise the inverter may be damaged.

 The inverter must be used indoors (without corrosive gas,

flammable gas, oil mist, dust and dirt etc.) Otherwise the inverter may be damaged.

 The inverter must be used at an altitude of 2500 m or less

above sea level, with vibration at 5.9 m/s Hz (directions of X, Y, Z axes). Otherwise the inverter may be damaged. (Refer to page 18 for details.)

 If halogen-based materials (fluorine, chlorine, bromine,

iodine, etc.) infiltrate into a Mitsubishi product, the product will be damaged. Halogen-based materials are often included in fumigant, which is used to sterilize or disinfest wooden packages. When packaging, prevent residual fumigant components from being infiltrated into Mitsubishi products, or use an alternative sterilization or disinfection method (heat disinfection, etc.) for packaging. Sterilization of disinfection of wooden package should also be performed before packaging the product.

Wiring  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.

 The output side terminals (terminals U, V, and W) must be

connected correctly. Otherwise the motor will rotate inversely.

 PM motor terminals (U, V, W) hold high-voltage while the PM

motor is running even after the power is turned OFF. Before wiring, the PM motor must be confirmed to be stopped. Otherwise you may get an electric shock.

 Never connect an PM motor to the commercial power

supply. Applying the commercial power supply to input terminals (U,V, W) of an PM motor will burn the PM motor. The PM motor must be connected with the output terminals (U, V, W) of the inverter.

Trial run  Before starting operation, each parameter must be

confirmed and adjusted. A failure to do so may cause some machines to make unexpected motions.

 2.9 m/s2 or less for the FR-A846-01800(55K) or higher.

 or less, 10 to 55

Warning

Usage  Everyone must stay away from the equipment when the

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

 Since pressing a key may not stop output depending

on the function setting status, separate circuit and switch that make an emergency stop (power OFF, mechanical brake operation for emergency stop, etc.) must be provided.

 OFF status of the start signal must be confirmed before

resetting the inverter fault. Resetting inverter fault with the start signal ON restarts the motor suddenly.

 Do not use an PM motor for an application where the PM

motor is driven by its load and runs at a speed higher than the maximum motor speed.

 Use this inverter only with three-phase induction motors or

with an PM motor. Connection of any other electrical equipment to the inverter output may damage the equipment.

 Performing pre-excitation (LX signal and X13 signal) under

torque control (Real sensorless vector control) may start the motor running at a low speed even when the start command (STF or STR) is not input The motor may run also at a low speed when the speed limit value = 0 with a start command input. It must be confirmed that the motor running will not cause any safety problem before performing pre-excitation.

 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.

Safety Instructions

Caution

Usage  The electronic thermal relay function does not guarantee

protection of the motor from overheating. It is recommended to install both an external thermal and PTC thermistor for overheat protection.

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

frequent starting/stopping of the inverter. Otherwise the life of the inverter decreases.

 The effect of electromagnetic interference must be reduced

by using a noise filter or by other means. Otherwise nearby electronic equipment may be affected.

 Appropriate measures must be taken to suppress

harmonics. Otherwise power supply harmonics from the inverter may heat/damage the power factor correction capacitor and generator.

 When driving a 400V class motor by the inverter, the motor

must be an insulation-enhanced motor or measures must be taken to suppress surge voltage. Surge voltage attributable to the wiring constants may occur at the motor terminals, deteriorating the insulation of the motor.

 When parameter clear or all parameter clear is performed,

the required parameters must be set again before starting operations. because all parameters return to their initial values.

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

Before changing its setting, the performances of the motor and machine must be fully examined.

 Stop status cannot be hold by the inverter's brake function.

In addition to the inverter’s brake function, a holding device must be installed to ensure safety.

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

period, inspection and test operation must be performed.

 Static electricity in your body must be discharged

beforeyou touch the product.

 Only one PM motor can be connected to an inverter.  An PM motor must be used under PM sensorless vector

control. Do not use a synchronous motor, induction motor, or synchronous induction motor.

 Do not connect an PM motor in the induction motor control

settings (initial settings). Do not use an induction motor in the PM sensorless vector control settings. It will cause a failure.

 In the system with an PM motor, the inverter power must be

turned ON before closing the contacts of the contactor at the output side.

Emergency stop  A safety backup such as an emergency brake must be

provided to prevent hazardous conditions to the machine and equipment in case of inverter failure.

 When the breaker on the inverter input side trips, the wiring

must be checked for fault (short circuit), and internalparts of the inverter for a damage, etc. The cause of the trip must be identified and removed before turning ON the power of the breaker.

 When a protective function activates, take an appropriate

corrective action, then reset the inverter, and resume the operation.

Maintenance, inspection and parts replacement  Do not carry out a megger (insulation resistance) test on the

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

Disposal  The inverter must be treated as industrial waste.

General instruction

 Many of the diagrams and drawings in the Instruction

Manual show the product without a cover or partially open for explanation. Never operate the product in this manner. The cover must be always reinstalled and the instruction in the Instruction Manual must be followed when operating the product. For more details on the PM motor, refer to the Instruction Manual of the PM motor.

Caution

Waterproof and dustproof performances  The inverter is rated with an IPX5

IP5X dustproof rating when the operation panel (FR-DU08-

01), the front cover, the wiring cover, and the cable glands are securely fixed with screws.

 The items enclosed with the inverter such as the Instruction

Manual or CD are not rated with the IPX5 waterproof or IP5X dustproof ratings.

 Although the inverter is rated with the IPX5 waterproof and

IP5X dustproof ratings, it is not intended for use in water. Also, the ratings do not guarantee protection of the inverter from needless submersion in water or being washed under strong running water such as a shower.

 Do not pour or apply the following liquids over the inverter:

water containing soap, detergent, or bath additives; sea water; swimming pool water; warm water; boiling water; etc.

 The inverter is intended for indoor

outdoor installation. Avoid places where the inverter is subjected to direct sunlight, rain, sleet, snow, or freezing temperatures.

 If the operation panel (FR-DU08-01) is not installed, if the

screws of the operation panel are not tightened, or if the operation panel is damaged or deformed, the IPX5 waterproof performance and the IP5X dustproof performance are impaired. If any abnormalities are found on the operation panel, ask for an inspection and repair.

 If the screws of the front cover or the wiring cover are not

tightened, if any foreign matter (hair, sand grain, fiber, etc.) is stuck between the inverter and the gasket, if the gasket is damaged, or if the front cover or the wiring cover is damaged or deformed, the IPX5 waterproof performance and the IP5X dustproof performance are impaired. If any abnormalities are found on the front cover, wiring cover, or the gasket of the inverter, ask for an inspection and repair.

 Cable glands are important components to maintain the

waterproof and dustproof performances. Be sure to use cable glands of the recommended size and shape or equivalent. The standard protective bushes cannot sufficiently maintain the IPX5 waterproof performance and the IP5X dustproof performance.

 If a cable gland is damaged or deformed, the IPX5

waterproof performance and the IP5X dustproof performance are impaired. If any abnormalities are found on the cable glands, ask the manufacturer of the cable glands for an inspection and repair.

 To maintain the waterproof and dustproof performances of

the inverter, daily and periodic inspections are recommended regardless of the presence or absence of abnormalities.

 IPX5 refers to protection of the inverter functions against water jets from

any direction when about 12.5-liter water

an inside diameter of 6.3 mm from the distance of about 3 m for at least 3

minutes.

 IP5X refers to protection of the inverter functions and maintenance of

safety when the inverter is put into a stirring device containing dust of 75

µm or smaller in diameter, stirred for 8 hours, and then removed from the

device.

 Water here refers to fresh water at room temperature (5 to 35°C).

 Indoor here refers to the environments that are not affected by climate

conditions.

 waterproof rating and an

 installation and not for

 is injected from a nozzle with

Safety Instructions

1 INTRODUCTION 7

1.1 Product checking and accessories 8

1.2 Component names 9

1.3 About the related manuals 10

2 INSTALLATION AND WIRING 11

2.1 Peripheral devices 12

2.1.1 Inverter and peripheral devices ...................................................................................................................... 12

2.1.2 Peripheral devices..........................................................................................................................................14

2.2 Removal and reinstallation of the front cover 15

2.3 Installation of the inverter 18

2.3.1 Inverter installation environment ....................................................................................................................18

2.3.2 Inverter installation ......................................................................................................................................... 20

2.4 Terminal connection diagrams 21

2.5 Main circuit terminals 25

2.5.1 Details on the main circuit terminals............................................................................................................... 25

2.5.2 Terminal layout of the main circuit terminals, wiring of power supply and the motor ..................................... 25

2.5.3 Wiring method ................................................................................................................................................ 26

2.5.4 Applicable cables and the wiring length ......................................................................................................... 29

2.5.5 Earthing (grounding) precautions ................................................................................................................... 31

2.6 Control circuit 32

2.6.1 Details on the control circuit terminals............................................................................................................ 32

2.6.2 Control logic (sink/source) change .................................................................................................................36

2.6.3 Wiring of control circuit ...................................................................................................................................38

2.6.4 Wiring precautions..........................................................................................................................................40

2.6.5 When supplying 24 V external power to the control circuit............................................................................. 41

2.6.6 Safety stop function........................................................................................................................................43

2.7 Operation panel (FR-DU08-01) 45

2.7.1 Differences with the FR-DU08........................................................................................................................ 45

2.7.2 Components of the operation panel (FR-DU08-01) .......................................................................................46

2.7.3 Basic operation of the operation panel...........................................................................................................47

2.8 Communication connectors and terminals 48

2.8.1 PU connector..................................................................................................................................................48

2.8.2 USB connector ............................................................................................................................................... 49

2.8.3 RS-485 terminal block .................................................................................................................................... 51

2.9 Connection of motor with encoder (vector control) 52

2.10 Parameter settings for a motor with encoder 58

2.11 Connection of stand-alone option units 61

2.11.1 Connection of the brake unit (FR-BU2) .......................................................................................................... 61

2.11.2 Connection of the brake unit (FR-BU) ............................................................................................................ 63

CONTENTS

2.11.3 Connection of the brake unit (BU type)...........................................................................................................64

2.11.4 Connection of the high power factor converter (FR-HC2) ..............................................................................65

2.11.5 Connection of the power regeneration common converter (FR-CV) ..............................................................66

2.11.6 Connection of the power regeneration converter (MT-RC).............................................................................67

3 PRECAUTIONS FOR USE OF THE INVERTER 69

3.1 Electro-magnetic interference (EMI) and leakage currents 70

3.1.1 Leakage currents and countermeasures ........................................................................................................70

3.1.2 Countermeasures against inverter-generated EMI .........................................................................................72

3.1.3 Built-in EMC filter............................................................................................................................................74

3.2 Power supply harmonics 76

3.2.1 Power supply harmonics.................................................................................................................................76

3.2.2 Harmonic suppression guidelines in Japan ....................................................................................................77

3.3 Installation of a reactor 79

3.4 Power-OFF and magnetic contactor (MC) 80

3.5 Countermeasures against deterioration of the 400 V class motor insulation 81

3.6 Checklist before starting operation 82

3.7 Failsafe system which uses the inverter 84

4 PROTECTIVE FUNCTIONS 87

4.1 Inverter fault and alarm indications 88

4.2 Reset method for the protective functions 88

4.3 Faults history and the list of fault displays 89

5 PRECAUTIONS FOR MAINTENANCE AND

INSPECTION 91

5.1 Inspection item 92

5.1.1 Daily inspection...............................................................................................................................................92

5.1.2 Periodic inspection..........................................................................................................................................92

5.1.3 Daily and periodic inspection ..........................................................................................................................93

5.1.4 Checking the inverter and converter modules ................................................................................................95

5.1.5 Cleaning..........................................................................................................................................................95

5.1.6 Replacement of parts......................................................................................................................................96

5.2 Measurement of main circuit voltages, currents, and powers 116

5.2.1 Measurement of powers ...............................................................................................................................118

5.2.2 Measurement of voltages and use of PT......................................................................................................118

5.2.3 Measurement of currents..............................................................................................................................119

5.2.4 Use of CT and transducer.............................................................................................................................119

5.2.5 Measurement of inverter input power factor .................................................................................................119

CONTENTS

5.2.6 Measurement of converter output voltage (across terminals P and N) ........................................................ 119

5.2.7 Measurement of inverter output frequency................................................................................................... 120

5.2.8 Insulation resistance test using megger....................................................................................................... 120

5.2.9 Pressure test ................................................................................................................................................ 120

6 SPECIFICATIONS 121

6.1 Inverter rating 122

6.2 Common specifications 123

6.3 Inverter outline dimension drawings 125

APPENDIX 129

Appendix 1 Differences and compatibility with the FR-A840 ....................................................................... 130

Appendix 2 Instructions for compliance with the EU Directives................................................................... 131

Appendix 3 Instructions for UL and cUL ...................................................................................................... 134

Appendix 4 Instructions for EAC.................................................................................................................. 136

Appendix 5 Restricted Use of Hazardous Substances in Electronic and Electrical Products...................... 137

CONTENTS

1 INTRODUCTION

This contents described in this chapter must be read before using this product. Always read the instructions before using the equipment.

1.1 Product checking and accessories.........................................8

1.2 Component names....................................................................9

1.3 About the related manuals.......................................................10

Operation panel ..............................Operation panel (FR-DU08-01) and LCD operation panel (FR-LU08-01)

Parameter unit ................................Parameter unit (FR-PU07)

DU ..................................................Operation panel (FR-DU08-01)

PU ..................................................Operation panel (FR-DU08-01) and parameter unit (FR-PU07)

Inverter ...........................................Mitsubishi inverter FR-A800 series (IP55 compatible model)

Vector control compatible option .... FR-A8AP/FR-A8AL/FR-A8APR/FR-A8APS (plug-in option), FR-A8TP

(control terminal option)

Pr. ..................................................Parameter number (Number assigned to function)

PU operation ..................................Operation using the PU (operation panel / parameter unit)

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

Combined operation ......................Combined operation using the PU (operation panel / parameter unit) and

External operation

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

Mitsubishi constant-torque motor ... SF-HRCA

Vector control dedicated motor ......SF-V5RU

Mitsubishi IPM motor .....................MM-CF

• Company and product names herein are the trademarks and registered trademarks of their respective owners.

• Connection diagrams in this Instruction Manual suppose that the control logic of the input terminal is the sink

logic, unless otherwise specified. (For the control logic, refer to page 36.)

Harmonic Suppression Guidelines

All the models of the inverters used by specific consumers are covered by "the Harmonic Suppression

Guidelines for Consumers Who Receive High Voltage or Special High Voltage". (For details, refer to page 77.)

INTRODUCTION

Product checking and accessories

1.1 Product checking and accessories

Unpack the product and check the rating plate and the capacity plate of the inverter to ensure that the model agrees with the

order and the product is intact.

 Inverter model

Symbol Voltage class

400 V class

Symbol

Structure, functionality

IP55 compatible model

Symbol Description

00023 to 03610

0.4K to 132K

Inverter rated current (SLD rated current of the A800 standard model) (A)

Inverter ND rated capacity (kW)

Symbol Type∗1

-1

-2

FM CA

Symbol

-60

-06

F R - A 8 4 6 -

Circuit board coating

(conforming to IEC60721-3-3 3C2/3S2)

With With

Plated conductor

00250

Without

With

Rating plate

Inverter model

Input rating

Output rating

SERIAL

Country of origin

 Specification differs by the type. Major differences are shown in the table below.

-1 -60 C3

Symbol

C2 C3

EMC filter Built-in C2 filter Built-in C3 filter

Type Monitor output

FM (terminal FM equipped model)

CA (terminal CA equipped model)

Terminal FM (pulse train output) Terminal AM (analog voltage output (0 to ±10 VDC))

Terminal CA (analog current output (0 to 20 mADC)) Terminal AM (analog voltage output (0 to ±10 VDC))

NOTE

• Hereinafter, the inverter model name consists of the applicable motor capacity and the rated current value (SLD rated current

value of the A800 standard model).

(Example) FR-A846-00250(7.5K)

 How to read the SERIAL number

Rating plate example

   

Symbol Year Month Control number

SERIAL

INTRODUCTION

Initial setting

Built-in EMC filter

Built-in C2 filter: ON, Built-in C3 filter: OFF

ON Source logic 50 Hz

The SERIAL consists of one symbol, two characters indicating the production

year and month, and six characters indicating the control number. The last digit

of the production year is indicated as the Year, and the Month is indicated by 1

to 9, X (October), Y (November), or Z (December).

Control

logic

Sink logic 60 Hz

Rated

frequency

Pr.19 Base

frequency voltage

9999 (same as the power supply voltage)

8888 (95% of the power supply voltage)

1.2 Component names

Component names are shown below. (Example: FR-A846-00250(7.5K))

Front cover for control circuit inspection

Front cover for main circuit inspection

(q)

(r)

(a)

(d)

Component names

(g) (b)

(c)

Front cover of the FR-A846-01800(55K) or higher

(p)

(o)

(u)

(t)

(s)

(n)

(f)

(h)

(k)

(j)

(m)

Symbol Name Description

(a) PU connector

(b) USB A connector Connects a USB memory device. 49 (c) USB mini B connector Connects a personal computer and enables communication with FR Configurator 2. 49 (d) RS-485 terminals Enables RS-485, MODBUS RTU communication. 51 (e) Plug-in option connector1 (f) Plug-in option connector2 (g) Plug-in option connector3

(h) Voltage/current input switch Selects between voltage and current for the terminal 2 and 4 inputs.

(i) Control circuit terminal block Connects cables for the control circuit. 32 (j) EMC filter ON/OFF connector Turns ON/OFF the EMC filter. 74 (k) Charge lamp Stays ON while the power is supplied to the main circuit. 25

(l)

(m) Main circuit terminal block Connects cables for the main circuit. 25

(n) Wiring cover

(o) Front cover

(p) Operation panel (FR-DU08-01) Operates and monitors the inverter. 46

(q) Fan cover

(r) Cooling fan Cools the inverter. (FR-A846-00250(7.5K) or higher) 97 (s) Internal fan Cools the inverter. 103 (t) Bracket Fixes the internal fan. 103

(u) Protective cover

Metal fitting for earthing (grounding)

 Refer to the FR-A800 Instruction Manual (Detailed)

Connects the operation panel or the parameter unit. This connector also enables the RS-485 communication.

Connects a plug-in option or a communication option.

Earths (grounds) the shielded wires of the encoder cable, etc. 57

Remove the protective bushes to connect cables. (FR-A846-00470(18.5K) or lower) Remove this cover for the installation of the product, installation of a plug-in (communication) option, RS-485 terminal wiring, switching of the voltage/current input switch, etc. For the FR-A846-01800(55K) or higher, the front cover for the control circuit inspection and the front cover for the main circuit inspection can be individually removed.

Remove this cover for replacement of the cooling fan. (FR-A846-00250(7.5K) or higher)

Protects the fan to avoid contacting the wiring. (FR-A846-00250(7.5K) to 00470(18.5K))

(e)

(i)

(l)

Refer to

Instruction Manual of the option

104

page



INTRODUCTION

About the related manuals

1.3 About the related manuals

The manuals related to FR-A806 are shown below.

Related manuals

Manual name Manual number

FR-A800 Instruction Manual (Detailed) IB-0600503ENG

FR Configurator 2 Instruction Manual IB-0600516ENG

PLC function programming manual IB-0600492ENG

Safety stop function instruction manual BCN-A23228-001

INTRODUCTION

2 INSTALLATION AND

WIRING

This chapter explains the "INSTALLATION" and the "WIRING" of this product. Always read the instructions before using the equipment.

2.1 Peripheral devices ....................................................................12

2.2 Removal and reinstallation of the front cover........................15

2.3 Installation of the inverter ........................................................18

2.4 Terminal connection diagrams ................................................21

2.5 Main circuit terminals ...............................................................25

2.6 Control circuit ...........................................................................32

2.7 Operation panel (FR-DU08-01).................................................45

2.8 Communication connectors and terminals ............................48

2.9 Connection of motor with encoder (vector control) ..............52

2.10 Parameter settings for a motor with encoder ........................58

2.11 Connection of stand-alone option units .................................61

INSTALLATION AND WIRING

Peripheral devices

2.1 Peripheral devices

2.1.1 Inverter and peripheral devices

(b) Three-phase AC power supply

(MCCB) or earth leakage current breaker (ELB), fuse

(d) Magnetic contactor (MC)

(e) AC reactor(FR-HAL)

(a) Inverter

(i) Brake unit

(FR-BU2, FR-BU)

R/L1 S/L2 T/L3

N/-P/+

(Ground)

Earth

∗1

(k) USB connector

IM connection

UVW

USB host (A connector) Communication status indicator (LED)(USB host)

USB device (Mini B connector)

PM connection

USB

Personal computer (FR Configurator 2)

(l) EMC filter

(ferrite core) (FR-BSF01,

FR-BLF)

(n) Contactor

Example)

No-fuse

switch

(DSN type)

(f) High power factor

converter (FR-HC2)

 The figure shows the area when the front cover is removed.

(g) Power regeneration

common converter (FR-CV)

(h) Power regeneration

converter (MT-RC)

(j) Resistor unit

NOTE

• To prevent an electric shock, always earth (ground) the motor and inverter.

• Do not install a power factor correction capacitor or surge suppressor or capacitor type filter on the inverter's output side.

Doing so will cause the inverter to trip or the capacitor and surge suppressor to be damaged. If any of the above devices is

connected, immediately remove it. When installing a molded case circuit breaker on the output side of the inverter, contact

the manufacturer of the molded case circuit breaker.

• 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, activating the EMC filter may minimize

interference. (Refer to page 74.)

• For details of options and peripheral devices, refer to the respective Instruction Manual.

• A PM motor cannot be driven by the commercial power supply.

• A PM motor is a motor with permanent magnets embedded inside. High voltage is generated at the motor terminals while the

motor is running. Before closing the contactor at the output side, make sure that the inverter power is ON and the motor is

stopped.

P/+

(FR-BR, MT-BR5)

(m) Induction motor

Earth (Ground)

(o) PM motor (MM-CF)

Earth (Ground)

: Install these options as required.

INSTALLATION AND WIRING

Peripheral devices

Symbol Name Overview

The life of the inverter is influenced by the ambient temperature. The ambient temperature should be as low as possible within the permissible range. Incorrect wiring may lead to damage of the inverter. The control signal

(a) Inverter (FR-A806)

(b) Three-phase AC power supply Must be within the permissible power supply specifications of the inverter. 122

Molded case circuit breaker (MCCB),

(c)

(d) Magnetic contactor (MC)

(e) AC reactor (FR-HAL)

(f) High power factor converter (FR-HC2)

(g)

(h)

(i) Brake unit (FR-BU2, FR-BU

(j) Resistor unit (FR-BR

(k) USB connection

(l)

(m) Induction motor Connect a squirrel-cage induction motor. ―

(n)

(o) PM motor

earth leakage circuit breaker (ELB), or fuse

Power regeneration common converter (FR-CV

)

Power regeneration converter (MT-RC

)

, BU)

, MT-BR5)

Noise filter (FR-BSF01, FR-BLF)

Contactor Example) No-fuse switch (DSN type)

 Compatible with the FR-A846-01800(55K) or lower.  Compatible with the FR-A846-02160(75K) or higher.

lines must be kept fully away from the main circuit lines to protect them from noise. The built-in EMC filter can reduce the noise. In this inverter, a DC reactor and common mode choke are built in to suppress harmonics and to improve the power factor.

Must be selected carefully since an inrush current flows in the inverter at power ON.

Install this to ensure safety. Do not use this to start and stop the inverter. Doing so will shorten the life of the inverter.

Install this to suppress harmonics and to improve the power factor. An AC reactor (FR-HAL) (option) is required when installing the inverter near a large power supply system (1000 kVA or more). Under such condition, the inverter may be damaged if you do not use a reactor. Select a reactor according to the applied motor capacity.

Suppresses the power supply harmonics significantly. Install this as required.

Provides a large braking capability. Install this as required.

Allows the inverter to provide the optimal regenerative braking capability. Install this as required.

A USB (Ver. 1.1) cable connects the inverter with a personal computer. A USB memory device enables parameter copies and the trace function.

Install this to reduce the electromagnetic noise generated from the inverter. The noise filter is effective in the range from about 0.5 MHz to 5 MHz. A wire should be wound four turns at maximum.

Connect this for an application where a PM motor is driven by the load even while the inverter power is OFF. Do not open or close the contactor while the inverter is running (outputting).

When PM sensorless vector control is selected, a PM motor can be driven.

Refer

to page

18 21 74

―

INSTALLATION AND WIRING

Peripheral devices

2.1.2 Peripheral devices

Check the model of the inverter you purchased. Appropriate peripheral devices must be selected according to the capacity.

Refer to the table below to prepare appropriate peripheral devices.

Motor output

(kW)



0.4 FR-A846-00023(0.4K) 5 A S-T10

0.75 FR-A846-00038(0.75K) 5 A S-T10

1.5 FR-A846-00052(1.5K) 10 A S-T10

2.2 FR-A846-00083(2.2K) 10 A S-T10

3.7 FR-A846-00126(3.7K) 15 A S-T10

5.5 FR-A846-00170(5.5K) 20 A S-T12

7.5 FR-A846-00250(7.5K) 30 A S-T21

11 FR-A846-00310(11K) 40 A S-T21

15 FR-A846-00380(15K) 50 A S-T21

18.5 FR-A846-00470(18.5K) 60 A S-T35

22 FR-A846-00620(22K) 75 A S-T35

30 FR-A846-00770(30K) 100 A S-T50

37 FR-A846-00930(37K) 100 A S-T50

45 FR-A846-01160(45K) 125 A S-T65

55 FR-A846-01800(55K) 150 A S-T100

75 FR-A846-02160(75K) 200 A S-T100

90 FR-A846-02600(90K) 225 A S-N150

110 FR-A846-03250(110K) 225 A S-N180

132 FR-A846-03610(132K) 350 A S-N220

 Assumes the use of a Mitsubishi 4-pole standard motor with the power supply voltage of 400 VAC 50 Hz.

 Select an MCCB according to the power supply capacity.

 Magnetic contactor is selected based on the AC-1 class. The electrical durability of magnetic contactor is 500,000 times. When the magnetic

Applicable inverter model

Install one MCCB per inverter. For the use in the United States or Canada, provide the appropriate UL and cUL listed fuse or UL489 molded case circuit breaker (MCCB) that is suitable for branch circuit protection. (Refer to page 134.)

contactor is used for emergency stops during motor driving, the electrical durability is 25 times. If using an MC for emergency stop during motor driving, select an MC regarding the inverter input side current as JEM1038-AC-3 class rated current. When providing an MC on the inverter output side for switching to commercial power supply during general-purpose motor operation, select an MC regarding the rated motor current as JEM1038-AC-3 class rated current.

Molded case circuit breaker (MCCB) 

or earth leakage circuit breaker (ELB)

(NF, NV type)

Input-side magnetic

contactor

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 select cables and reactors according to the motor output.

• When the breaker on the inverter's input side trips, check for the wiring fault (short circuit), damage to internal parts of the

inverter etc. The cause of the trip must be identified and removed before turning ON the power of the breaker.

INSTALLATION AND WIRING

Removal and reinstallation of the front cover

Loosen

Tighten

(3)

(1)

(5)

(9)

(7)

(4)

(8)

(10)

(6)

(2)

TightenTightenTighten

Tighten

TightenTighten

2.2 Removal and reinstallation of the front

cover

Removal of the front cover

• Remove the front cover installation screws to remove the front cover. (For the FR-A846-00620(22K) to 01160(45K), remove

the operation panel before removing the front cover.)

Inverter Screw type Screw size Screwdriver size

FR-A846-00470(18.5K) or lower

FR-A846-00620(22K) or higher M5 T25

Loosen

Hexalobular screw

Loosen

M4 T20

Reinstallation of the front cover

• Fix the front cover with the front cover installation screws. (For the FR-A846-00620(22K) to 01160(45K), install the front

cover while the operation panel is removed.)

Inverter Tightening torque

FR-A846-00470(18.5K) or lower 1.4 to 1.9 N·m

FR-A846-00620(22K) or higher 2.8 to 3.6 N·m

Tighten the front cover installation screws in the numerical order in the figure shown below.

FR-A846-00023(0.4K) to 00170(5.5K),

FR-A846-00620(22K) to 01160(45K)

Tighten

(1)

(5)

(4)

(3)

(6)

(2)

Tighten

FR-A846-00250(7.5K) to 00470(18.5K) FR-A846-01800(55K) to 03610(132K)

Tighten

(1)

(5)

(7)

(4)

(3)

(8)

(6)

Tighten

(2)

INSTALLATION AND WIRING

Removal and reinstallation of the front cover

Loosen

Tighten

Removal of the front cover for control circuit inspection and the front

cover for main circuit inspection (FR-A846-01800(55K) or higher)

• Remove the installation screws to remove the front cover for control circuit inspection and/or the front cover for main circuit

inspection.

Front cover Screw type Screw size Screwdriver size

For control circuit inspection

For main circuit inspection

Hexalobular screw M5 T25

Loosen

Installation of the front cover for control circuit inspection and the front

cover for main circuit inspection (FR-A846-01800(55K) or higher)

• Fix the covers with the installation screws.

Front cover Tightening torque

For control circuit inspection

For main circuit inspection

To install the front cover for control circuit inspection and/or the front cover for main circuit inspection, tighten the installation

screws in the numerical order in the figure shown below.

2.8 to 3.6 N·m

Tighten

(1)

(4)

(1)

(5)

(4)

(3)

(2)

(3)

(6)

(2)

Tighten

INSTALLATION AND WIRING

Removal and reinstallation of the front cover

Flange

NOTE

• When installing the front cover for the FR-A846-00470(18.5K) or lower, fit the connector of the operation panel securely along

the guides of the PU connector. Otherwise, the operation panel connection connector or the PU connector may be damaged.

• For the FR-A846-00620(22K) to 03610(132K), before removing/installing the front cover, always remove the operation panel.

Otherwise, the operation panel connection connector or the PU connector may be damaged.

• When removing/installing the front cover of the FR-A846-00620(22K) to 01160(45K), always hold the front cover at the flange

sections. Otherwise, the front cover may fall off, resulting in damage or injuries.

Flange

• Before installing the front cover, check the waterproof gasket to make sure that it is not damaged. If it is damaged, contact the

nearest Mitsubishi FA center.

• Securely install the front cover to fit the waterproof gasket closely. Do not let the waterproof gasket get stuck between the

front cover edge and the inverter. Otherwise, water may get into the inverter. Also, do not let any foreign matter get stuck

between the waterproof gasket and the front cover.

• Keep the waterproof gasket of the inverter clean. Otherwise, water may get into the inverter. If there is any dirt on the gasket,

make sure to remove it.

• Fully make sure that the front cover is installed securely. Always tighten the mounting screws of the front cover.

INSTALLATION AND WIRING

Installation of the inverter

2.3 Installation of the inverter

An 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.

2.3.1 Inverter installation environment

The following table lists the standard specifications of the inverter installation environment. Using the inverter in an

environment that does not satisfy the conditions deteriorates the performance, shortens the life, and causes a failure. Refer to

the following points, and take adequate measures.

Standard environmental specifications of the inverter

Item Description

Measurement position

Ambient temperature -10 to +40°C (non-freezing)

5 cm 5 cm

Inverter

Measurement position

Ambient humidity 95% RH or less (non-condensing)

Storage temperature -20 to +65°C

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

Altitude Maximum 1,000 m above sea level.

Vibration

 Temperature applicable for a short time, e.g. in transit.  For the installation at an altitude above 1,000 m (3280.80 feet) up to 2,500 m (8202 feet), derate the rated current 3% per 500 m (1640.40 feet).

 2.9 m/s

or less for the FR-A846-01800(55K) or higher.

5.9 m/s







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

5 cm

Temperat ure

The permissible ambient temperature of the inverter is between -10°C and +40°C. Always operate the inverter within this

temperature range. Operation outside this range will considerably shorten the service lives of the semiconductors, parts,

capacitors and others. Take the following measures to keep the ambient temperature of the inverter within the specified range.

(a) Measures against high temperature

• Ventilate the room.

• Install the inverter in an air-conditioned electric 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 inverter well.

(b) Measures against low temperature

• Provide a heater around the inverter.

• Do not power OFF the inverter. (Keep the start signal of the inverter OFF.)

• 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.

INSTALLATION AND WIRING

Installation of the inverter

Humidity

Operate the inverter within the ambient air humidity of usually 45 to 90%. Too high humidity will pose problems of reduced

insulation and metal corrosion. On the other hand, too low humidity may cause a spatial electrical breakdown.

The insulation distance defined in JEM1103 "Control Equipment Insulator" is humidity of 45 to 85%.

(a) Measures against high humidity

• Provide dry air into the room from outside.

• Use a dehumidifier.

(b) Measures against low humidity

Air with proper humidity can be blown into the room from outside. Also when installing or inspecting the unit, discharge your

body (static electricity) beforehand, and keep your body away from the parts and patterns.

Condensation may occur if frequent operation stops change the in-room 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 (a).

• Do not power OFF the inverter. (Keep the start signal of the inverter OFF.)

Dust, dirt, oil mist

Dust and dirt will cause faults such as poor contacts, reduction in insulation and cooling effect due to accumulation of

moisture-absorbed dust and dirt, and equipment internal temperature rise due to a clogged ventilation filter in the room where

the equipment is installed. In an 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.

Countermeasure

• Purge air.

Pump clean air from outside to make the in-enclosure air pressure higher than the outside air pressure.

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 a place, take the countermeasures described in "Dust, dirt, oil mist" above.

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.

High altitude

Use the inverter at an altitude of within 1000 m. For the installation at an altitude above 1,000 m (3280.80 feet) up to 2,500 m

(8202 feet), derate the rated current 3% per 500 m (1640.40 feet).

If it is used at a higher place, it is likely that thin air will reduce the cooling effect and low air pressure will deteriorate dielectric

strength.

Vibration, impact

The vibration resistance of the inverter is up to 5.9 m/s2 (2.9 m/s2 or less for the FR-A846-01800(55K) or higher) at 10 to 55

Hz frequency and 1 mm amplitude for the directions of X, Y, Z axes. Applying vibration and impacts for a long time may loosen

the structures and cause poor contacts of connectors, even if those vibration and impacts are within the specified values.

Especially when impacts are applied repeatedly, caution must be taken because such impacts may break the installation feet.

Countermeasure

• Strengthen the structure to prevent the installation surface from resonance.

• Install the inverter away from the sources of the vibration.

INSTALLATION AND WIRING

Installation of the inverter

Fix six positions for the FR-A846-01800(55K) or higher.

 

2.3.2 Inverter installation

Inverter placement

• Install the inverter on a strong flat surface securely with screws.

• Leave enough clearances and take cooling measures.

• Avoid places where the inverter is subjected to direct sunlight, high temperature and high humidity.

• Install the inverter on a nonflammable wall surface.

• For heat dissipation and maintenance, keep clearance between the inverter and the other devices. The clearance below

the inverter is required as a wiring space, and the clearance above the inverter is required as a heat dissipation space.

Clearances (side)

Inverter

5 cm

FR-A846-01800(55K) or lower

Vertical

Allow clearance.

 For the FR-A846-00126(3.7K) or lower, allow 1 cm or more clearance.

10 cm

5 cm5 cm

10 cm

Clearances (front)

FR-A846-02160(75K) or higher

10 cm

20 cm

10 cm

20 cm

 Installation orientation of the inverter

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

Above the 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.

INSTALLATION AND WIRING

Terminal connection diagrams

2.4 Terminal connection diagrams

FM type

Sink logic

Main circuit terminal

Control circuit terminal

Jumper

Brake unit

(Option)

MCCB

Three-phase AC power supply

Control input signals (No voltage input allowed)∗1

Forward rotation start

Reverse rotation start

Start self-holding selection

High speed

Multi-speed selection

Second function selection

Terminal 4 input selection

(Current input selection)

Selection of automatic restart

Contact input common

(Common for external power supply transistor)

Frequency setting signals (Analog)

Frequency setting potentiometer 1/2W1kΩ∗4

Connector for plug-in option connection

Safety stop signal

Safety stop input (Channel 1)

Safety stop input (Channel 2)

Middle speed

Low speed

Jog operation

Output stop

after instantaneous

power failure

24V external power

supply input

Common terminal

Auxiliary input

Terminal 4 input (Current input)

Safety stop input common

Earth

(Ground)

Reset

24VDC power supply

(+) (-)

Shorting wire

Reactor

R/L1 S/L2 T/L3

Inrush current limit circuit

OFF

Main circuit

Control circuit

STF

STR

STP(STOP)

JOG

∗2

MRS

RES

+24

10E(+10V)

10(+5V)

DC0 to 5V

DC0 to 10V DC0 to 20mA

(Analog common)

DC0 to ±10V

DC0 to ±5V selectable

DC4 to 20mA

DC0 to 5V DC0 to 10V

connector 1 connector 2

connector 3

24V

SIC

SINK

SOURCE

Voltage/current

∗3

input switch

OFF

Initial value

selectable

Initial value

selectable

Output shutoff circuit

EMC filter ON/OFF connecter

24V

∗3

N/-P/+

∗9

PU connector

USB A connector

USB mini B connector

Terminating

resistor

U V

Relay output 1 (Fault output)

Relay output 2

RUN

Running

Up to frequency

IPF

Instantaneous power failure

Overload

Frequency detection

Open collector output common

Sink/source common

F/C

(FM)

∗7

TXD+

TXD-

RXD+

RXD-

GND (SG)

VCC

SOC

Calibration resistor ∗8

Safety monitor output

Safety monitor output common

Motor

Earth (Ground)

Relay output∗5

Open collector output∗6

(+)

Analog signal output

(0 to ±10VDC)

(-)

Data transmission

Data reception

GND

5V (Permissible load current 100mA)

Indicator (Frequency meter, etc.)

Moving-coil type 1mA full-scale

RS-485 terminals

INSTALLATION AND WIRING

Terminal connection diagrams

 The function of these terminals can be changed with the input terminal assignment (Pr.178 to Pr.189). (Refer to the FR-A800 Instruction Manual

(Detailed).)

 Terminal JOG is also used as a pulse train input terminal. Use Pr.291 to choose JOG or pulse.  Terminal input specifications can be changed by analog input specification switchover (Pr.73, Pr.267). To input a voltage, set the voltage/current

input switch OFF. To input a current, set the voltage/current input switch ON. Terminals 10 and 2 are also used as a PTC input terminal. (Pr.561) (Refer to the FR-A800 Instruction Manual (Detailed).)

 It is recommended to use 2 W 1 k when the frequency setting signal is changed frequently.  The function of these terminals can be changed with the output terminal assignment (Pr.195, Pr.196). (Refer to the FR-A800 Instruction Manual

(Detailed).)

 The function of these terminals can be changed with the output terminal assignment (Pr.190 to Pr.194). (Refer to the FR-A800 Instruction

Manual (Detailed).)

 The terminal FM can be used to output pulse trains as open collector output by setting Pr.291.  Not required when calibrating the scale with the operation panel.  Do not change the initially set ON (enabled) position of the EMC filter ON/OFF connector in the case of the inverter with a built-in C2 filter. The

Class C2 compatibility condition is not satisfied with the EMC filter OFF. The FR-A846-00250(7.5K)-C2 to FR-A846-00470(18.5K)-C2 are not provided with the EMC filter ON/OFF connector. The EMC filter is always ON.

NOTE

• To prevent a malfunction due to noise, keep the signal cables 10 cm (3.94 inches) or more away from the power cables. Also,

separate the main circuit cables at the input side from the main circuit cables at 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 a wall or the side of the enclosure etc., take caution not to allow chips and other foreign

matters to enter the inverter.

• Set the voltage/current input switch correctly. Incorrect setting may cause a fault, failure or malfunction.

INSTALLATION AND WIRING

CA type

Source logic

Main circuit terminal

Control circuit terminal

Jumper

Brake unit

(Option)

Terminal connection diagrams

MCCB

Three-phase AC power supply

Control input signals (No voltage input allowed)∗1

Forward rotation start

Reverse rotation start

Start self-holding selection

High speed

Multi-speed selection

Second function selection

Terminal 4 input selection

(Current input selection)

Selection of automatic restart

after instantaneous power failure

Common for external power

Contact input common

Middle speed

Low speed

Jog operation

Output stop

Reset

supply transistor

24VDC power supply

Earth

(Ground)

Reactor

R/L1 S/L2 T/L3

STF

STR

STP(STOP)

JOG

MRS

RES

Inrush current limit circuit

EMC filter ON/OFF connecter

OFF

Main circuit

Control circuit

∗2

SINK

SOURCE

24V

N/-P/+

U V

∗7

Relay output 1 (Fault output)

Relay output 2

RUN

Running

Up to frequency

IPF

Instantaneous power failure

Overload

Frequency detection

Open collector output common

Sink/source common

Open collector output∗6

Motor

Earth (Ground)

Relay output∗5

24V external power

supply input

Common terminal

Frequency setting signals (Analog)

Auxiliary input

(+) (-)

Shorting wire

Frequency setting potentiometer 1/2W1kΩ∗4

Terminal 4 input (Current input)

Connector for plug-in option connection

Safety stop signal

Safety stop input (Channel 1)

Safety stop input (Channel 2)

Safety stop input common

+24

10E(+10V)

10(+5V)

DC0 to 5V

DC0 to 10V DC0 to 20mA

(Analog common)

DC0 to ±10V

DC0 to ±5V selectable

DC4 to 20mA

DC0 to 5V DC0 to 10V

connector 1 connector 2

connector 3

SIC

∗3

OFF

selectable

24V

Output shutoff circuit

Voltage/current input switch

Initial value

selectable

Initial value

∗3

PU connector

USB A connector

USB mini B connector

TXD+

TXD-

RXD+

RXD-

Terminating

resistor

F/C

(CA)

GND

(SG)

VCC

Safety monitor output

SOC

Safety monitor output common

(+)

Analog current output (0 to 20mADC)

(-)

(+)

Analog signal output (DC0 to ±10V)

(-)

RS-485 terminals

Data transmission

Data reception

GND

5V (Permissible load current 100mA)

INSTALLATION AND WIRING

Terminal connection diagrams

 The function of these terminals can be changed with the input terminal assignment (Pr.178 to Pr.189). (Refer to the FR-A800 Instruction Manual

(Detailed).)

input switch OFF. To input a current, set the voltage/current input switch ON. Terminals 10 and 2 are also used as a PTC input terminal. (Pr.561) (Refer to the FR-A800 Instruction Manual (Detailed).)

(Detailed).)

 The function of these terminals can be changed with the output terminal assignment (Pr.190 to Pr.194). (Refer to the FR-A800 Instruction

Manual (Detailed).)

 Do not change the initially set ON (enabled) position of the EMC filter ON/OFF connector in the case of the inverter with a built-in C2 filter. The

NOTE

• To prevent a malfunction due to noise, keep the signal cables 10 cm or more away from the power cables. Also, separate the

main circuit cables at the input side from the main circuit cables at 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 a wall or the side of the enclosure etc., take caution not to allow chips and other foreign

matters to enter the inverter.

• Set the voltage/current input switch correctly. Incorrect setting may cause a fault, failure or malfunction.

INSTALLATION AND WIRING

Main circuit terminals

2.5 Main circuit terminals

2.5.1 Details on the main circuit terminals

Terminal

symbol

R/L1, S/L2, T/L3

U, V, W Inverter output Connect these terminals to a three-phase squirrel cage motor or a PM motor. —

P/+, N/- Brake unit connection

P/+, P1 —

Terminal name Terminal function description

Connect these terminals to the commercial power supply.

AC power input

Earth (ground) For earthing (grounding) the inverter chassis. This must be earthed (grounded). 31

Do not connect anything to these terminals when using the high power factor converter (FR-HC2) or the power regeneration common converter (FR-CV).

Connect the brake unit (FR-BU2, FR-BU, BU), power regeneration common converter (FR-CV), power regeneration converter (MT-RC), high power factor converter (FR-HC2), or DC power supply (under DC feeding mode).

Do not remove the jumper across terminals P/+ and P1 except for connecting the power regeneration common converter (FR-CV) or the high power factor converter (FR-HC2).

Refer to

page

—

2.5.2 Terminal layout of the main circuit terminals,

wiring of power supply and the motor

FR-A846-00023(0.4K) to FR-A846-00170(5.5K)

P/+

N/-

JumperCharge lamp

FR-A846-00250(7.5K) to FR-A846-00470(18.5K)

Charge lamp

R/L1

T/L3

S/L2

MotorPower supply

FR-A846-00620(22K) to FR-A846-01160(45K)

Charge lamp

Jumper

S/L2 T/L3

N/-

P/+

R/L1

Jumper

T/L3

S/L2 T/L3

N/-

P/+

R/L1

S/L2

Power supply

FR-A846-01800(55K) to FR-A846-03610(132K)

Charge lamp

R/L1

Motor

MotorPower supply

Power supply

INSTALLATION AND WIRING

Motor

Jumper

Main circuit terminals

Loosen

Example of the FR-A846-00250(7.5K)

Loosen

NOTE

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

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

• Connect the motor to U, V, and W. The phase need to be matched.

2.5.3 Wiring method

(1) Remove the front cover of the inverter. (Refer to page 15)

(2) For the FR-A846-00470(18.5K) or lower, remove the wiring cover installation screws (hexalobular screws, screw size:

M5, screwdriver size: T25, tightening torque: 2.8 to 3.6 N·m) to remove the wiring cover.

Loosen

Example of the FR-A846-00250(7.5K)

(3) For the FR-A846-00470(18.5K) or lower, remove the protective bushes from the wiring cover.

For the FR-A846-00620(22K) to FR-A846-01160(45K), remove the protective bushes from the bottom of the inverter.

For the FR-A846-01800(55K) or higher, remove the protective bushes from the bottom and the side of the inverter.

(Do not remove the protective bushes from the holes that are not used for wiring of cables.)

FR-A846-00023(0.4K) to FR-A846-00470(18.5K) FR-A846-00620(22K) to FR-A846-01160(45K)

NOTE

• For the FR-A846-01800(55K) or higher, do not remove the screws on the bottom of the inverter. The IPX5 waterproof

performance may be impaired.

INSTALLATION AND WIRING

FR-A846-01800(55K) to FR-A846-03610(132K)

(4) Fix the cables using a cable gland and a nut, according to the diameter of the holes.

(b)

(c)

(d)

(a)

For the details such as hole diameters and recommended cable glands, refer to the following table.

FR-A846-00250(7.5K) to 00470(18.5K)FR-A846-00023(0.4K) to 00170(5.5K) FR-A846-00620(22K) to 01160(45K)

(a) (a)

(b) (d)

FR-A846-01800(55K) to 03610(132K)

(c)

(a)

(a) (a) (a)

(b) (c) (d)

Main circuit terminals

(a)

(a) (a) (a)

(b) (c) (d)

INSTALLATION AND WIRING

Main circuit terminals

Inverter

capacity

FR-A84600023(0.4K) to 00170(5.5K)

FR-A84600250(7.5K) to 00470(18.5K)

FR-A84600620(22K) to 02600(90K)

FR-A84603250(110K), 03610(132K)

 EMC-compliant cable gland  General-purpose cable gland

Symbol

(a)

(b)

(d)

(a)

(b)

(d)

(a)

(b)

(d)

(a)

(b)

(d)

Recommended layout example

Control circuit wiring

AC power input wiring

Brake unit connection wiring

Inverter output wiring

Control circuit wiring

AC power input wiring

Brake unit connection wiring

Inverter output wiring

Control circuit wiring

AC power input wiring

Brake unit connection wiring

Inverter output wiring

Control circuit wiring

AC power input wiring

Brake unit connection wiring

Inverter output wiring

Hole

diameter

(mm)

20.3

32.3

20.3

40.4

20.3

Recommended cable gland

(Manufactured by LAPP KABEL)

SKINTOP MS-SC-M20 53112630 SKINTOP MS-M20 53112020 

SKINTOP MS-SC-M32 53112650 SKINTOP MS-M32 BRUSH 53112677  SKINTOP MS-M32 53112040 

SKINTOP MS-SC-M20 53112630 SKINTOP MS-M20 53112020 

SKINTOP MS-SC-M40 53112660 SKINTOP MS-M40 BRUSH 53112678  SKINTOP MS-M40 53112050 

SKINTOP MS-SC-M20 53112630 SKINTOP MS-M20 53112020 

SKINTOP MS-M63 BRUSH 53112680 SKINTOP MS-M63 53112070 

SKINTOP MS-SC-M20 53112630 SKINTOP MS-M20 53112020 

SKINTOP MS-M63 BRUSH PLUS 53112681 SKINTOP MS-M63 PLUS 53112080 

(5) For the FR-A846-00470(18.5K) or lower, install the wiring cover.

(6) Connect cables to the terminals of the inverter.

(7) Install the front cover to the inverter. (Refer to page 15)

Recommended nut

(Manufactured by

LAPP KABEL)



SKINDICHT SM-M20 52103020

SKINDICHT SM-M32 52103040(c)

SKINDICHT SM-M32 52103020

SKINDICHT SM-M40 52103050(c)

SKINDICHT SM-M20 52103020

SKINDICHT SM-M63 52103070(c)

SKINDICHT SM-M20 52103020



SKINDICHT SM-M63 52103070(c)

Caution

 Always use a waterproof cable gland (IP55 or higher) for the hole from which the protective bush is

removed because water may get into the inverter.

INSTALLATION AND WIRING

Main circuit terminals

2.5.4 Applicable cables and the wiring length

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

If the wiring distance is long between the inverter and motor, the voltage drop in the main circuit wires will cause the motor

torque to decrease especially at a low speed.

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

• 400 V class (440 V input power supply (with 150% rated current for one minute))

cable

Cable gauge

AWG/MCM

R/L1, S/L2,

U, V,

T/L3

PVC cables, etc. (mm2)

R/L1, S/L2,

T/L3

U, V,

(grounding)

Applicable

inverter

model

FR-A846-[ ]

00023(0.4K) to 00126(3.7K)

00170(5.5K) M4 1.5 2-4 2-4 2 2 3.5 3.5 12 14 2.5 2.5 4

00250(7.5K) M6 4.4 5.5-6 5.5-6 3.5 3.5 3.5 3.5 12 12 4 4 4

00310(11K) M6 4.4 5.5-6 5.5-6 5.5 5.5 5.5 5.5 10 10 6 6 10

00380(15K) M6 4.4 5.5-6 5.5-6 5.5 5.5 8 5.5 10 10 6 6 10

00470(18.5K) M6 4.4 8-6 8-6 8 8 14 8 8 8 10 10 16

00620(22K) M6 4.4 14-6 14-6 14 14 22 14 6 6 16 16 16

00770(30K) M6 4.4 22-6 22-6 22 22 22 14 4 4 25 25 16

00930(37K) M8 7.8 22-8 22-8 22 22 22 14 4 4 25 25 16

01160(45K) M8 7.8 38-8 38-8 38 38 38 22 2 2 50 50 25

01800(55K) M10 14.7 60-10 60-10 60 60 60 22 1/0 1/0 50 50 25

02160(75K) M10 14.7 60-10 60-10 60 60 60 22 1/0 1/0 50 50 25

02600(90K) M10 14.7 60-10 60-10 60 60 80 22 3/0 3/0 50 50 25

03250(110K) M10 14.7 80-10 80-10 80 80 80 38 3/0 3/0 70 70 35

03610(132K) M10 14.7 100-10 100-10 100 100 100 38 4/0 4/0 95 95 50

Terminal

screw

size

M4 1.5 2-4 2-4 2 2 2 2 14 14 2.5 2.5 2.5

 For the FR-A846-01800(55K) or lower, it is the gauge of a cable with the continuous maximum permissible temperature of 75°C (HIV cable (600

V grade heat-resistant PVC insulated wire), etc.). It assumes a surrounding air temperature of 50°C or lower and the wiring distance of 20 m or shorter. For the FR-A846-02160(75K) or higher, it is the gauge of the cable with the continuous maximum permissible temperature of 90°C or higher. (LMFC (heat resistant flexible cross-linked polyethylene insulated cable), etc.). It assumes a surrounding air temperature of 50°C or lower.

 For the FR-A846-01160(45K) or lower, it is the gauge of a cable with the continuous maximum permissible temperature of 75°C (THHW cable).

It assumes a surrounding air temperature of 40°C or lower and the wiring distance of 20 m or shorter. For the FR-A846-01800(55K) or higher, it is the gauge of a cable with the continuous maximum permissible temperature of 90°C (THHN cable). It assumes a surrounding air temperature of 40°C or lower. (Selection example for use mainly in the United States.)

 For the FR-A846-01160(45K) or lower, it is the gauge of a cable with the continuous maximum permissible temperature of 70°C (PVC cable). It

assumes a surrounding air temperature of 40°C or lower and the wiring distance of 20 m or shorter. For the FR-A846-01800(55K) or higher, it is the gauge of a cable with the continuous maximum permissible temperature of 90°C (XLPE cable). It assumes a surrounding air temperature of 40°C or lower. (Selection example for use mainly in Europe.)

 The terminal screw size indicates the size of terminal screw for R/L1, S/L2, T/L3, U, V, W, P/+, N/-, P1, and a screw for earthing (grounding).

Tightening



torque

N·m

Crimping

terminal

R/L1, S/L2,

T/L3

U, V,

HIV cables, etc. (mm2) R/L1, S/L2,

T/L3

U, V,

P/+

Earthing

(grounding)

Earthing

cable

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

Line voltage drop [V]=

× 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.

NOTE

• Tighten the terminal screw to the specified torque.

A screw that has been tightened too loosely can cause a short circuit or malfunction.

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

• Use crimping terminals with insulation sleeves to wire the power supply and motor.

INSTALLATION AND WIRING

+ 126 hidden pages

Mitsubishi FR-A846-00038, FR-A846-00170, FR-A846-00126, FR-A846-00052, FR-A846-00250 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

FR-A806 (IP55/UL Type 12 SPECIFICATIONS) INSTRUCTION MANUAL (HARDWARE)

Safety Instructions

CONTENTS

1 INTRODUCTION

1.1 Product checking and accessories

1.2 Component names

1.3 About the related manuals

INSTALLATION AND WIRING

2.1 Peripheral devices

2.1.1 Inverter and peripheral devices

2.1.2 Peripheral devices

Removal and reinstallation of the front cover

2.3 Installation of the inverter

2.3.1 Inverter installation environment

2.3.2 Inverter installation

2.4 Terminal connection diagrams

2.5 Main circuit terminals

2.5.1 Details on the main circuit terminals

2.5.3 Wiring method

2.5.4 Applicable cables and the wiring length