Fuji Electric RHC132S-4DE, RHC315S-4DE, RHC630B-4DE, RHC800B-4DE Instruction Manual

Instruction Manual

High Power Factor PWM Converter

with Power Regenerative Function (Stack Type)

RHC-D Series

RHC132S-4DE to RHC315S-4DE
RHC630B-4DE to RHC800B-4DE

• Read through this instruction manual to become familiar with the handling procedure of this product, and proceed to
installation, connection (wiring), operation, and maintenance inspection.

• Deliver this manual to the end user of this product. Keep this manual in a safe place until this product is discarded.

• The product is subject to change without prior notice.

Fuji Electric Co., Ltd. INR-SI47-1722c-E

Copyright © 2014Fuji Electric Co., Ltd.

All rights reserved.

No part of this publication may be reproduced or copied without prior written permission
from Fuji Electric Co., Ltd.

All products and company names mentioned in this manual are trademarks or registered
trademarks of their respective holders.

The information contained herein is subject to change without prior notice for improvement.

i

Safety Precautions

Read the safety precautions thoroughly for safe use of
the product and become familiar with correct use before
handling the product.

Safety precautions are classified into the following four
categories in this manual: WARNING, CAUTION and
NOTE.

Failure to heed the information indicated by this
symbol may lead to dangerous conditions,
possibly resulting in death or serious bodily
injuries.

Failure to heed the information indicated by this
symbol may lead to dangerous conditions,
possibly resulting in minor or light bodily
injuries and/or substantial property damage.

NOTE

Offers important information for your under­standing and handling of the product.

WARNING and CAUTION are given in Safety
Precautions and the section where injury or damage is
anticipated. NOTE is given only in the section that
requires additional information.

Failure to heed the information, even though its symbol
is

, may cause serious results depending
on the situation. Since all WARNING and CAUTION
contain important factors, always observe their
precautions.

The converter system is used to drive machinery in
various places, so it is impossible to anticipate all the
situations where troubles will be caused by potential
factors. Therefore, observe also the safety precautions
needed for inverters, motors, equipment, and the places
of use.

Remarks:

- Serious bodily injuries include loss of eyesight,

injury, burn (hot or cold), electric shock, fracture of a
bone, poisoning or the like. All of these cause
aftereffect and require hospitalization or attendance
at the hospital for a long term for cure.

- Minor and medium injuries indicate burns and

electric shock that does not require hospitalization or
long-term visiting care.

- Damage to the property means enlargement loss

concerning breakage of property and damage to the
equipment.

• Peripheral devices such as the filter stack, filtering resistors and reactors, and boosting reactors as well as the
heat sink become hot. NEVER touch these devices while the power is ON and immediately after the power is
turned OFF until they cool down.

Burns and injuries may result.

• Mount the front cover or the like without fail on the peripheral devices to keep them away from the reach of
people.

Electric shock or injury may result.

ii

Application

• The PWM converter is intended for use in combination with a Fuji inverter that drives a three-phase induction
motor, and must not be used for any other purposes.

Fire could result.

• The PWM converter may not be used for a life-support system or other purposes directly related to the human
safety.

• Though the product is manufactured under strict quality control, install safety devices for applications where
serious accidents or property damages are foreseen in relation to the failure of it.

An accident could occur.

Installation

• Mount the converter on a base made of metal or other non-flammable material.

Otherwise, a fire could occur.

• Do not place flammable material nearby.

Doing so could cause fire.

• Install the converter in an inaccessible place, e.g., in a control panel.

Otherwise, electric shock or injuries could occur.

• Do not support the converter by its front cover during transportation.

Doing so could cause a drop of the converter and injuries.

• Prevent lint, paper fibers, sawdust, dust, metallic chips, or other foreign materials from getting into the
converter or from accumulating on the heat sink.

Otherwise, a fire or an accident might result.

• Do not install or run a converter that is damaged or lacking parts.

Doing so could cause injuries.

• When changing the positions of the mounting bases, use the attached screws.

Otherwise, injuries could occur.

iii

Wiring

• When wiring the converter to the power source, insert a recommended molded case circuit breaker (MCCB) or
residual-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB) in the path of each pair
of power lines to the converter.

Otherwise, a fire could occur.

• Use the peripheral devices authorized by Fuji Electric for the converter.

Otherwise, a fire or bodily injuries could occur.

• Use wires in the specified size.

Otherwise, a fire could occur.

• Be sure to ground the converter's grounding terminals.

Otherwise, electric shock or fire could occur.

• Qualified electricians should carry out wiring.

Otherwise, an electric shock could occur.

• Ensure that the power is turned OFF (open circuit) before starting wiring.

Otherwise, an electric shock could occur.

• Be sure to complete installation of the converter before wiring.

Otherwise, an electric shock or injuries could occur.

• Never supply power to a converter whose parts are broken or coming off, or to a converter damaged in
transportation.

Doing so could cause an electric shock or fire.

• Never connect a DC reactor to the converter.

Doing so could cause a fire.

• Ensure that the number of input phases and the rated voltage of the product match the number of phases and the
voltage of the AC power supply to which the product is to be connected.

Otherwise, injuries could occur.

• Ensure that the polarity of the converter’s DC terminals (P(+) and N(-)) match that of the inverter’s ones.

Otherwise, an accident could occur.

• The converter, filter stack, inverter, motor and wiring generate electric noise. Be careful about malfunction of
the nearby sensors and devices. To prevent them from malfunctioning, implement noise control measures.

Otherwise, an accident could occur.

Operation

• Be sure to mount the front cover before turning the power ON. Do not remove the cover when the converter
power is ON.

An electric shock could occur.

• Do not operate switches with wet hands.

Doing so could cause electric shock.

• Confirm that the Run signal is OFF before resetting an alarm. Resetting an alarm with the Run signal being ON
may cause a sudden motor start.

An accident could occur.

• Never touch the terminals when the power is supplied to the converter, filter stack or peripheral devices even if
the converter is stopped.

An electric shock could occur.

iv

• Do not touch the heat sink, filtering resistors, filtering reactors or boosting reactors because they become hot.

Burns may result.

Maintenance and inspection, and parts replacement

• Before proceeding to the maintenance/inspection, turn the power OFF, make sure that the charging lamp is
turned OFF. Further, make sure that the DC voltage across the terminals P(+) and N(-) and the terminal voltage
of the filtering capacitor is +25VDC or below.

Otherwise, an electric shock could occur.

• Maintenance, inspection, and parts replacement should be made only by qualified persons.

• Take off the watch, rings and other metallic objects before starting work.

• Use insulated tools.

Otherwise, an electric shock or injuries could occur.

Disposal

• Treat the product as an industrial waste when disposing of it.

Otherwise, injuries could occur.

Others

• Never attempt to modify the product.

Doing so could cause an electric shock or injuries.

Preface

Thank you for purchasing our PWM converter "RHC-D
series." This product is intended for use in combination
with a Fuji inverter (see the table below) as a
bidirectional device for converting AC current to DC
current and vice versa.

Read through this instruction manual to become
familiar with the handling procedure for correct use.
Improper handling might result in incorrect operation, a
short life, a failure of this product, or even substantial
property damage.

Even after reading this manual, read it again and again
whenever necessary. For this purpose, keep this manual
handy so that the user can refer to it any time.

If there is anything that you do not understand about the
product or this instruction manual, contact the store you
purchased or your nearest Fuji sales representative.

This instruction manual does not contain the
information on how to handle inverters. For the
information, refer to the inverter instruction manual.

List of applicable inverters

The table below lists the inverters that can be used in combination with this product.
The unit type and stack type of inverters can be used.

Inverter series Capacity Inverter type Stack/unit type

VG series All capacities FRNVG1S-4

FRNSVG1S-4 (*1)
FRNBVG1S-4 (*1)

Unit type/stack type

MEGA series All capacities FRNG1S-4 (*1) Unit type

Ace series All capacities FRNE2S-4 (*1) Unit type

Eco series All capacities FRNF1S-4 (*1) Unit type

(*1) Contact Fuji Electric if using the combination.

1. Outline ................................................... 1-1

2. Before Use ............................................. 2-1

2.1 Acceptance Inspection .................. 2-1

2.2 Appearance of the Product ............ 2-3

2.3 Handling the Product ..................... 2-5

2.4 Transportation ............................... 2-6

2.5 Storage .......................................... 2-6

3. Installation and Connection ................... 3-1

3.1 Operating Environment ................. 3-1

3.2 Installation and Layout .................. 3-2

3.3 Connection .................................... 3-6

3.3.1 General precautions

about connection .......................... 3-4

3.3.2 Terminal Function ......................... 3-7

3.3.3 Terminal Layout Drawing .............. 3-9

3.3.4 Basic Connection Diagram ........... 3-14

3.3.5 Details of Connection ................... 3-17

3.3.6 Precautions for Installation ........... 3-29

3.3.7 Tightening torque and wire size for

devices applicable to the main circuit ..... 3-30

3.3.8 Peripheral Devices ....................... 3-32

3.3.9 Connecting Optional Devices ....... 3-34

4. Preparation for Operation ...................... 4-1

4.1 Inspection and Preparation ........... 4-1

4.2 Driving Method .............................. 4-1

4.3 Test Run ........................................ 4-1

5. Operation Using the Keypad ................. 5-1

5.1 Appearance ................................... 5-1

5.2 Operation and Display Screen ...... 5-2

5.2.1 Screen Immediately After Auxiliary

Control Power Supply IsTurned On ........ 5-2

5.2.2 Screen immediately after the main
circuit power supply is turned on .. 5-3

5.2.3 Switching LED monitor screens ... 5-4

5.2.4 Switching LCD screens ................ 5-5

5.2.5 Configuring function code data ..... 5-6

5.2.6 Checking function code settings .. 5-9

5.2.7 Monitoring the running status ....... 5-10

5.2.8 Checking I/O signal states ............ 5-11

5.2.9 Displaying maintenance

information .................................. 5-12

5.2.10 Measuring load factor ................... 5-14

5.2.11 Displaying alarm information ........ 5-15

5.2.12 Displaying alarm history and

cause .......................................... 5-17

5.2.13 Copying data ................................ 5-18

6. Description of Function Codes .............. 6-1

6.1 Function Code Tables .................... 6-1

6.2 Details of Function Codes ............. 6-2

7. Troubleshooting ..................................... 7-1

7.1 List of Protective Functions ........... 7-1

7.2 Error Reset .................................... 7-3

7.3 Troubleshooting ............................. 7-4

7.4 Converter Cannot Get Ready

to Run ............................................ 7-13

8. Maintenance and Inspection ................. 8-1

8.1 Daily Inspection .............................. 8-1

8.2 Periodic Inspection ......................... 8-2

8.3 Measurement of Electrical Quantity

in Main Circuit ............................... 8-4

8.4 Insulation Test ................................ 8-5

8.5 Replacement Parts ......................... 8-6

8.6 Inquiries about Product and Guarantee 8-6

Contents

9. Control Options ...................................... 9-1

9.1 Common Specifications ................. 9-1

9.1.1 Option list...................................... 9-1

9.1.2 Acceptance inspection ................. 9-1

9.1.3 Installing a built-in option

(OPC-VG7) ................................... 9-2

9.2 T-Link Option ................................. 9-10

9.2.1 Product Overview ......................... 9-10

9.2.2 Model and specifications .............. 9-11

9.2.3 Specifications ............................... 9-11

9.2.4 External view ................................ 9-12

9.2.5 Basic Connection Diagram ........... 9-13

9.2.6 Function codes ............................. 9-15

9.2.7 Protective operation ..................... 9-15

9.3 SX Bus Option ............................... 9-16

9.3.1 Product Overview ......................... 9-16

9.3.2 Model and Specifications .............. 9-17

9.3.3 Specifications ............................... 9-17

9.3.4 External View ................................ 9-19

9.3.5 Basic Connection Diagram ........... 9-20

9.3.6 Function Codes ............................ 9-22

9.3.7 Protective Operation ..................... 9-23

9.4 CC-Link Option .............................. 9-24

9.4.1 Product Overview ......................... 9-24

9.4.2 Model and Specifications .............. 9-25

9.4.3 Specifications ............................... 9-25

9.4.4 External View ................................ 9-27

9.4.5 Basic Connection Diagram ........... 9-28

9.4.6 Protective Operation ..................... 9-29

9.5 DIO Option ..................................... 9-31

9.5.1 Outline of Product ......................... 9-31

9.5.2 Model and Specifications .............. 9-32

9.5.3 Specifications ............................... 9-32

9.5.4 Dimensioned Drawing .................. 9-33

9.5.5 Basic Connection Diagram ........... 9-35

9.5.6 Function Codes ............................ 9-36

9.5.7 Check Function ............................ 9-36

9.6 AIO Option ..................................... 9-37

9.6.1 Outline of Product ......................... 9-37

9.6.2 Model and Specifications .............. 9-38

9.6.3 Specifications ............................... 9-38

9.6.4 Dimensioned Drawing .................. 9-39

9.6.5 Basic Connection Diagram ........... 9-40

9.6.6 Function Codes ............................ 9-41

9.6.7 Check Function ............................ 9-41

9.7 SI Option ........................................ 9-42

9.7.1 Product Overview ......................... 9-42

9.7.2 Model ............................................ 9-42

9.7.3 Specifications ............................... 9-43

9.7.4 External drawings ......................... 9-44

9.7.5 Connection ................................... 9-45

9.7.6 Basic connection diagram ............ 9-49

9.7.7 Operation ...................................... 9-50

9.7.8 Protection functions ...................... 9-52

9.8 SIR Option ..................................... 9-54

9.8.1 Product Overview ......................... 9-54

9.8.2 Model ............................................ 9-54

9.8.3 Specifications ............................... 9-55

9.8.4 External drawings ......................... 9-56

10. Specifications ......................................... 10-1

10.1 Standard Specifications ................. 10-1

10.2 Common Specifications ................. 10-2

10.3 External Dimensions ..................... 10-4

10.4 Peripheral Devices ........................ 10-8

10.5 Generating Loss ............................ 10-11

11. Function Code Tables ............................ 11-1

11.1 Function Code Configuration ......... 11-1

11.2 Function Code Tables .................... 11-1

11.3 List of Communication-dedicated

Function Codes ............................ 11- 7

11.4 Data Format List ............................. 11-8

12. Conformity with Standards .................... 12-1

12.1 Compliance with European Standards 12-1

12.1.1 Compliance with EMC standards 12-1

12.1.2 Harmonic component regulation

in the EU ...................................... 12-3

12.1.3 Compliance with the low voltage

directive in the EU ...................... 12-4

12.2 Compliance with Functional

Safety Standard ............................ 12-8

12.2.1 General ........................................ 12-8

12.2.2 Notes ........................................... 12-9

12.2.3 Functional safety performance .... 12-10

12.2.4 Safe Torque Off (STO) ................. 12-11

12.2.5 alarm ............................................ 12-12

12.2.6 Prevention of restarting ............... 12-13

12.3 Compliance with UL Standards

and Canadian Standards ............... 12-14

v

Location of General Precaution and Warning Labels

PWM Converter (RHC-D Series)

vi

Inside of the Products

PWM Converter (RHC-D Series)

If any of warning labels is torn, place an order for a new label with Fuji Electric and replace the torn label.

GENERAL PRECAUTIONS

Some drawings in this manual may be illustrated without covers or safety shields for explanation of detail parts.
Restore the covers and shields in the original state before using the products.

1-1

1 Outline

Outline of Product

The high power factor PWM converter with power
regenerative function, the RHC-D series is used in
combination with a Fuji inverter to return the
regenerative energy generated on the load side to the
power source, improving the regenerating performance
and saving energy.

The converter shapes an input current waveform into a
sinusoidal waveform to enable driving at a power factor
of 1 so that it is possible to reduce the capacity of the
power supply equipment.

As well, the converter is useful for the replacement of
conventional applications using braking resistors, such
as cranes and vertical transfer machines and it is
compliant with the "Guideline for Suppressing
Harmonics by Customers Receiving High Voltage or
Special High Voltage" (conversion coefficient Ki = 0).

With simplified operation, it is possible to monitor the
input power supply, current, power, and load factor,
configure function codes, and check alarm history.

Various communications options provided allow you to
monitor data from a remote site easily or to integrate
the converter in the customer's system without
difficulty.

The converter also applies to large capacity,
low-voltage inverters by controlling sharing of load to
the inverter uniformly with the parallel connection
option and input transformer.

Guideline for Suppressing Harmonics

The PWM control regulates the power supply current
into a sinusoidal wave to contribute to substantial
reduction of harmonic currents.

Accordingly, the combination with an inverter can
handle the conversion coefficient Ki (specified in the
"Guideline for Suppressing Harmonics by Customers
Receiving High Voltage or Special High Voltage" issued
by the Ministry of Economy, Trade and Industry) as "0"
(that is, no generation of harmonics).

Possible to Reduce the Capacity of Power
Supply

By controlling the power factor, the converter supplies
the in-phase current relative to the power phase voltage,
enabling running at a power factor of 1. This makes it
possible to reduce the capacity of the power transformer
or the size of the devices to less than those of the
standard inverters.

Substantial Increase of Braking
Performance

The regenerative energy obtained in frequent
acceleration/deceleration operation or elevator returns
to the power supply side, promoting energy savings.

Since the waveform of the regenerative current is
sinusoidal wave, too, there is no need to be anxious
about trouble in the power supply system.

MD (CT) mode LD (VT) mode

Continuous
regeneration

100% 100%

Short time rating 1 min. 150% 1 min. 110%

Variety of Assured Functions

• Monitors the source voltage, current, power, power
supply frequency and other trends.

• Provides three choices of languages (Japanese,
English and Chinese) to be displayed on the panel.

• Saves the converter load factor calculated,
cumulative run time, and data at the occurrence of
alarm into the memory.

• Issues overload and converter overheat early warning
signals before the converter stops due to an alarm.

• Shuts down the gate output at the time of a
momentary power failure and continues operation
immediately after the power is restored.

• Supports various communications protocols (Fuji
links such as T-Link and SX bus, and Open links
such as CC-Link and RS-485)

2-1

2Before Use

• Inadequate handling of the product during lifting or transportation will cause injuries or breakage of the
product. Trained personnel must handle the product, using suitable devices.

Injury may result.

2.1 Acceptance Inspection

Unpack the package and check if the converter unit, filter stack and peripheral devices are what you ordered and they
are free from damage. Also check that the models of the filter stack and peripheral devices match the converter type,
referring to Section 3.3.8 "Peripheral devices."

If you suspect the product is broken or not working properly or if you have any questions about your product, contact
your dealer or nearest Fuji sales representative and give him/her information about the following items.

(1) PWM converter

Check that the converter is the type you ordered. You can check the type and specifications on the rating plate shown
in Figure 2.1-1. The keypad comes with the converter unit.

TYPE: Type of PWM converter

RHC 220 S – 4 D E

SOURCE: Power supply rating
OUTPUT: Output rating
WEIGHT: Mass
SER. No.: Product number Manufacturing date

2 8 A 4 5 6 A 0 0 0 2 AA <2 3 2>

Production week
This indicates the week number that is numbered from 1st week of January.
The 1st week of January is indicated as '01'.

Production year: Last digit of year

Figure 2.1-1 Rating Plate

Shipping destination/Instruction manual language
J: Japan/Japanese, E: EU/English, C: China/Chinese

Series name D series

Power supply voltage 4: 400V class

Stack type S: Standard stack, B: Phase-specific stack

Standard applied inverter capacity 220: 220 kW

Product model RHC

- Models of the converter, filter stack, and peripheral devices

- Serial number (See below.)

- Date of purchase

- Inquiries (for example, point and extent of breakage, uncertainties, failure phenomena,
and other circumstances)

2-2

(2) Peripheral devices

When no filter stack is used, a boosting reactor, harmonics suppression filter (reactor, capacitor and resistor),
magnetic contactor, AC fuse, charging resistor and other accessories are separately required. Select those models
suitable for the PWM converter. For details, refer to Section 3.3.8 "Peripheral devices."

An AC fuse is separately required even when the filter stack is used.

Note: The peripheral devices do not come with the converter unit. Place a separate order for them.

a) Boosting reactor

b) Filtering reactor

c) Filtering capacitor

d) Filtering resistor

e) Magnetic contactor

f) AC fuse

g) Charging resistor

Note: The shape of each peripheral device varies according to the capacity of the converter.

(3) Optional devices

The following items are options given in Section 3.3.9 "Connecting optional devices."

- Zero-phase reactor for reducing radio noise (ACL-B)

- Power filter

The following items are options given in Chapter 10.

- Control options (OPC-VG7-TL, OPC-VG7-CCL, OPC-VG7-SX, OPC-VG7-SI, OPC-VG7-SIR, OPC-VG7-DIO,
and OPC-VG7-AIO)

2-3

2.2 Appearance of the Product

PWM converter

Figure 2.2-1 Appearance of Converter (RHC132S to 200S-4DE (Rank 3))

Figure 2.2-2 Appearance of Converter (RHC220S to 315S-4DE (Rank 4))

Sub nameplate

Main circuit
terminal
block

Casters

Cooling fans

Hoist hole
(I26)

P (+) bar

N (-) bar

Hoist hole
(I26)

Hoist holes
(I26)

Main
nameplate

Keypad

Sub nameplate

Cooling fans

Main circuit
terminal
block

Keypad

Main
nameplate

N (-) bar
Hoist hole
(

I

26)

Handle

Hoist holes
(I26)

Hoist hole

(I26)

Hoist hole
(I26)

Handle

P (+) bar

Handle

Handle

Front cover

Casters

Front cover

2-4

In the case of the phase-specific stack, a keypad is provided only on the S-PHASE stack.㻌

Hoist hole (I26)

Main nameplate

Front cover

Handle

Keypad

Handle

P (+) bar

N (-) bar

Hoist hole (I26)

Hoist hole (I26)

㻿㻙㻙㻼㻴㻭㻿㻱㻌㻌

㼀㻙㻙㻼㻴㻭㻿㻱㻌㻌

㻾㻙㻙㻼㻴㻭㻿㻱㻌㻌

Hoist hole (I26)

Cooling fans

Sub nameplat

Casters

Main circuit
terminal
block

Figure 2.2-3 Appearance of Converter (RHC630B to 800B-4DE (Rank 4))

2-5

2.3 Handling the Product

(1) Removing the front cover

Loosen the front cover mounting screws and remove the front cover.

When removing the front cover from the PWM converter, slide the blanking cover beneath the keypad down
beforehand as shown in the lower right figures.

In the case of the phase-specific stack, only the S-phase stack has a keypad.

Figure 2.3-1 Removal of Front Cover

(2) Removing the keypad

Loosen the keypad mounting screws, insert your finger into the cutout provided in the front cover and remove the
keypad slowly. Rough handling may break the connectors.

Figure 2.3-2 Removal of Keypad

Front cover

Keypad mounting screws

Loosen the screws on the
blanking cover beneath the
keypad.

Slide the blanking cover
down.

2-6

2.4 Transportation

Do not hold the covers or components during
transportation.

The converter may fall or turn over, causing
injuries.

When carrying the product, be sure to hold the handles
(provided on the front side) or the rear side of the unit.
Holding the covers or components may fall or turn over
the product. When carrying the product with casters, in
particular, take extra care for avoiding turnover.

To use a hoist or crane for carrying the product, pass the
hook or rope through hoist holes.

Figure 2.4-1 Carrying

Direction and Location of Handles

2.5 Storage Environment

(1) Temporary storage

Store the product in an environment that satisfies the
requirements listed below.

Table 2.5-1 Storage Environment

Item Specification

Ambient
temperature

-10 to + 40°C

Places not subjected to
abrupt temperature changes
or condensation or freezing

Storage
temperature

(Note 1)

-25 to + 70°C

Relative
humidity

5 to 95%

(Note 2)

Atmosphere

The product must not be exposed to dust,
direct sunlight, corrosive or flammable gases,
oil mist, vapor, water drops or vibration. The
atmosphere must contain only a low level of
salt.

Note 1: Assuming comparatively short-time storage, e.g.,
during transportation or the like.

Note 2: Even if the humidity is within the specified
requirements, avoid such places where the product will be
subjected to sudden changes in temperature that will cause
condensation to form.

Precautions for temporary storage

1) Do not leave the product directly on the floor.

2) If the environment does not satisfy the specified
requirements listed above, wrap the product in an
airtight vinyl sheet or the like for storage.

3) If the product is to be stored in a high-humidity
environment, put a drying agent (such as silica gel)
in the airtight package described in item 2).

(2) Long-term storage

The long-term storage method of the product varies
largely according to the environment of the storage site.
General storage methods are given below.

1) The storage site must satisfy the requirements
specified for temporary storage.

However, for storage exceeding three months, the
ambient temperature range should be within the
range from -10 to 30qC. This is to prevent
electrolytic capacitors in the product from
deterioration.

2) The package must be airtight to protect the product
from moisture. Add a drying agent in the package to
maintain the relative humidity inside the package
within 70%.

3) If the product has been installed to the equipment or
panel at construction sites where it may be subjected
to humidity, dust or dirt, then temporarily remove
the product and store it in a preferable environment.

4) If the product has not been powered on for a long
time, the property of the electrolytic capacitors may
deteriorate. Power the product on once a year.

Handle

Handle

Rear of the unit

Carrying
direction

3-1

3 Installation and Connection

3.1 Operating Environment

Install the converter in an environment shown in Table 3.1-1.

Table 3.1-1 Environmental Requirements

Item Specifications

Site location Indoors

Ambient temperature -10 to +40°C

Relative humidity 5 to 95% (No condensation)

Atmosphere

The converter must not be exposed to dust, direct sunlight, corrosive gases, flammable gases,
oil mist, vapor or water drops.

The atmosphere can contain a small amount of salt.
The converter must not be subjected to sudden changes in temperature that will cause

condensation to form.

Altitude

1000 m max.
(Refer to Table 3.1-2 for altitudes exceeding 1000 m.)

Vibration 2 to 9 Hz: 0.3 mm (Max. amplitude)

9 to 200 Hz: Less than 1 m/s

2

(0.1 G)

Table 3.1-2 Output Current Derating Factor in Relation to Altitude

Altitude Output current derating factor

1000 m or lower 1.00

1000 to 1500 m 0.97

1500 to 2000 m 0.95

2000 to 2500 m 0.91

2500 to 3000 m 0.88

3-2

3.2 Installation and Layout

• Prevent lint, paper fibers, sawdust, dust, metallic
chips, or other foreign materials from getting into
the converter and filter stack or from accumulating
on the heat sink.

Otherwise, a fire could occur.

• Do not install or run a damaged converter or filter
stack. There should be no parts missing.

Injury may result.

• Install the converter in a panel or at places where
people can not touch it easily.

Electric shock or injury may result.

1) Install the converter and filter stack vertically to a
robust structure with specified bolts so that the
"PWM CONVERTER" and "FILTER STACK"
characters are visible correctly in front, respectively.
Do not install them upside down, horizontally, or at
an angle.

2) Do not place devices or components in front of the
converter. The converter has the display and
operating unit on the front and wiring or
maintenance/inspection requires removing the front
cover.

3) Ensure that the minimum clearances and air channels
shown in Figure 3.2-1 are maintained al all time for
ventilation since the converter and filter stack
generate heat during operation.

The generated heat goes up, so do not route cables or
wiring in the space above the converter and filter
stack.

• Do not place flammable objects near the converter
or filter stack.

Fire may result.

Figure 3.2-1 Mounting Direction and Required

Clearances

4) Follow Fig. 3.2-2 about clearances of between stacks
of Phase-specific

5) The converter generates heat in running. When
mounting the converter in a control panel, therefore,
take extra care with ventilation inside the panel to
prevent the ambient temperature from exceeding the
specified limit. Do not install the converter in a small
airtight box with poor ventilation.

6) The generated heat is radiated upwards by fans inside
the converter and filter stack. Do not install the
converter or filter stack beneath devices sensitive to
heat.

• Install the converter and filter stack on a base made
of metal or other non-flammable material.

Fire may result.

7) When the converter is running, the temperature of
the heat sink rises to in the vicinity of 90qC. The
mounting surface of the heat sink on the back side of
the converter and filter stack should be made of
material being proof enough against the temperature
rise.

• Prevent lint, paper fibers, sawdust, dust, metallic
chips, or other foreign materials from getting into
the converter or from accumulating on the heat
sink.

Otherwise, a fire could occur.

• Keep away from the heat sink, filtering resistor,
filtering reactor and boosting reactor because they
become very hot.

Burns may result.

Table 3.2-1 Clearances

AB C D E

Between

stacks

Rank 3

10 10 300 350 20

Rank 4

From other devices 20 20 --

350

(100)

50

(Unit: mm)

1) Do not install stacks one above the other.

2) In space "C" (above the stack's outlet fans),
only a fuse (authorized by Fuji Electric) can
be mounted.

To mount general devices in the space,
select devices whose maximum operating
temperature is 70qC and mount them so that
they do not interfere with the outlet fans.

3) In space "D" (beneath the stack's inlet), do
not block approximately 60% of the area in
350 mm clearance. To install devices in
space "D," ensure 100 mm clearance.

E

Cooling

fans

㻌

Exhaust direction

AB

C

D

3-3

8) There are restrictions on the mounting direction of
the filtering capacitors. For details, refer to the
dimensional drawing of filtering capacitors in
Section 10.4 "Peripheral Devices."

9) Generating loss

For generating loss at each capacity of the converter
unit, filter stack, boosting reactor, filtering reactor
and filtering resistor, refer to Section 10.5
"Generating Loss."

FF

F䠖10䡚135 [mm]

Figure 3.2-2 Clearances between stacks of Phase-specific stack type

3-4

࣭࣭Mounting method

Rank 3 (132 to 200 kW)

1) The fixation plate of the upper part on the back side

2) The fixation plate of the lower part on the back side

3) The tapped holes for fixing of the upper part on the front side (2×M8-25: In case recommended thickness
of the metal fitting is 2.3mm)

4) The tapped holes for fixing of the lower part on the front side (2×M8-25: In case recommended thickness
of the metal fitting is 2.3mm)

Fixing part 2)

Fixing part 1)

Upper
Metal fitting

㻌

Fixing part 4)

Lower
Metal fitting

㻌

Fixing part 3)

Figure 3.2-3 The stack mounting method of Rank 3 size (132 to 200 kW)

3-5

Rank4 (220 to 800 kW)

1) The fixation plate of the upper part on the back side

2) The fixation plate of the lower part on the back side

3) The tapped holes for fixing of the upper part on the front side (2×M8-25: In case recommended thickness
of the metal fitting is 2.3mm)

4) The tapped holes for fixing of the lower part on the front side (2×M8-25: In case recommended thickness
of the metal fitting is 2.3mm)

Fixing part 1)

Fixing part 2)

Fixing part 3)

Upper
Metal fitting

㻌

㻌

Fixing part 4)

Lower
Metal fitting

㻌

Figure 3.2-4 The stack mounting method of Rank 4 size (220 to 800 kW)

3-6

3.3 Connection

3.3.1 General precautions about connection

• Connect the converter via a circuit protection
circuit breaker or earth leakage breaker to the
power supply.

Fire may result.

• Use the cables of the designated size without fail.

Fire may result.

• Connect the grounding cable without fail.

Electric shock or fire may result.

• Have wiring work done by a qualified electrician.

Electric shock may result.

• Check for power OFF (open circuit) before starting
wiring.

Electric shock may result.

• Install the main body first before starting wiring.

Electric shock or injury may result.

• Do not turn on the product with missing or
dropping parts or transportation damage.

Electric shock or fire may result.

1) Be sure to connect the power cables to main circuit
power terminals L1/R, L2/S, and L3/T of the PWM
converter. If the cables are connected to other
terminals, the PWM converter will be broken. Check
if the source voltage is within the allowable voltage
limits specified on the nameplate.

2) Connect the grounding terminal without fail to
prevent electric shock, fire or other disasters and to
reduce noise.

3) Use crimp terminals, which have high connection
reliability, to connect a terminal with a cable.

4) After finishing connections (wiring), check the
following items.

a. Correct connections
b. No missing connections
c. Short circuit between terminals or cables and

grounding fault

5) It takes long time until the smoothing
capacitors of the DC part of the main circuit and
filtering capacitors are discharged. To change
connections after turning the power off, use a
multimeter or the like to check if the DC voltage is
reduced to a safe voltage (within +25 VDC) after the
charge lamp is unlit. Before shorting a circuit, check
that the voltage is reduced to zero; otherwise the
remaining voltage (charge) causes a spark.

Figure 3.3-1 Charge Lamp

• Check if the phases and rated voltage of the product agree with the phases and voltage of the AC power supply.

Injury may result.

• Check that the DC terminals (P (+), N (-)) of the PWM converter are consistent with the polarity (P (+), N (-))
of the DC terminals of the inverter.

Accidents may result.

• Wiring of the PWM converter, filter stack, inverter and motor generates noise. Be careful of malfunction of
nearby sensors and devices.

Accidents may result.

Charge lamp
OFF

3-7

3.3.2 Terminal functions

Table 3.3-1 Main Circuit Terminals

Converter stack

Terminal symbol Name Specification

Main circuit

L1/R, L2/S, L3/T Main power input Connect to 3-phase power supply via an exclusive reactor or

the like. For the phase-specific stack, one terminal connects
to one phase (one stack).

P(+), N(-) Converter output Connect to the power input terminals P (+) and N (-) of the

inverter.

G Grounding terminal Grounding terminal of the chassis (case) of the converter.

R0, T0 Auxiliary control power

input

Connect to the same power system as the main circuit power
supply and backup terminal of the control power supply.

R1, S1, T1 Synchronous power

supply input for voltage
detection

Voltage detection terminal used for the control inside
converter; connect to the power supply of the special filter.

R2, T2 Control monitoring input Connection terminal for detection of a blown AC fuse.

Connection not required when RHC132S to 315S-4DE is
used.

R3, T3 Fan power input Connection terminal for AC cooling fan power inside the

stack. Connect to the same power system as the main circuit
power supply.

Circuits across R1-R3 and T1-T3 are shorted with short wires
by factory default. To use the fan power supply individually,
remove the short wires and perform wiring individually.

Check the configuration of the fan power switching
connector. To change the configuration, refer to Section 3.3.5
"Details of connection," (6) Fan power switching connector
(CN UX).

For the details of basic connection diagram and Phase-specific stack, refer to Section 3.3.4 "Basic connection

diagrams" and Section 3.3.5 "Details of connection".

㻺㻔㻙㻕

㻯㼐㼏

㻾㻜
㼀㻜

PWM converter (RHC-D series)

㻼㻔㻗㻕

㻺㻔㻙㻕

U

V

W

㻸㻝㻛㻾
㻸㻞㻛㻿
㻸㻟㻛㼀

Inverter

M

3
Power
supply

㻾㻝
㻿㻝
㼀㻝

㻭㼂㻾 㻭㻯㻾 㻼㼃 㻹

Base drive

signal

Auxiliary
control
power
input

Current

detection

Voltage

detection

㻱㼐㼏㻖

㼒㼟

㻵㻾

㻵㼀

+

㻙㻗

㻙

AVR: Auto voltage regulator
ACR: Auto current regulator
PWM: Pulse width modulation
fs: Carrier frequency
Lr: Boosting reactor
Fac: AC fuse
Fdc: DC fuse
Edc: DC link bus voltage
Cdc: Capacitor DC voltage
PLC: Programmable logic controller
52: Magnetic contactor (MC)
73: Magnetic contactor for charging circuit
Ro: Charging resistor

㻾㼁㻺

㼄㻝

㻾㻿㼀

㻯㻹

30A

30B

30C

Y5A

Y1

Y2

Y3

Y5C

Arithmetic

control unit

Communications
option

PLC

㻱㼐㼏

㻼㻔㻗㻕

㻡㻞

MCCB or

RCD/ELCB

㻼㻸㻯

㻣㻟㻯

㻣㻟㻭

㻹

㻳

㻳

㻯㻹㻱
㻭㻻㻝

㻲㼍㼏

㻾㻟

㼀㻟

㻵㻿

FAN

㼁㻝

㼁㻞

DCF1
DCF2

DCF1

DCF2

Microswitch for DC

fuse blowout

detection

㻲㼐㼏

Sequence circuit

(Refer to Section 3.3.4 䇾Basic

connection diagrams.䇿)

Filter stack (RHF-D series)

㼁㻜

㼂㻜

㼃㻜

㻸㼞

㻾㻜

㻸㼒

㻣㻟

㻣㻟㻙㻞

㻣㻟㻙㻝

㻣㻟

㻸㻝

㻸㻞

㻸㻟

㻸㻠
㻸㻡
㻸㻢

㻾㻟
㼀㻟

㻭㻯㻲㻭㻺

㻾㻝㻝

㼀㻝㻝
㼀㻝㻞

㻾㻝㻞

㻯㼒

㻾㼒

㻲㼁㻿㻝

㻲㼁㻿㻞

㼁㻝

㼁㻞

Sequence circuit

(Refer to Section 3.3.4 䇾Basic

connection diagrams.䇿)

㻳

Microswitch for AC

fuse blowout

detection

㻲㼍㼏

㻲㼍㼏

㽢

Alarm output

Relay output (Operation
preparation complete)

General-purpose
transistor output

General-purpose
analog output

Keypad

Display and

setting process

Signal output unit

Communication

processing unit

Signal input unit

RUN/STOP

General-purpose terminal

Alarm reset

Common

Figure 3.3-2 Basic Circuit Configuration and Terminals (When no filter stack is used)

3-8

Table 3.3-2 Control Terminals

Converter stack

Item Name Specifications

Input signals

RUN/STOP command [RUN] Connect across RUN and CM to boost the voltage, or disconnect to stop.

Alarm reset command [RST]

After removing the cause of the alarm upon alarm stop, connect across
RST and CM to cancel protection and restart operation.

General-purpose
transistor input

[X1]

Digital input circuit specification

0V

+24V

6.8k䃈

PLC

RUN,X1,RST

CM

PLC signal power
supply

[PLC]

Connect the power supply of the PLC output signals. (Rated voltage 24 (22 to

27) VDC)

Digital input common [CM] Common terminal for digital input signals

Output signals

Alarm output

[30A]
[30B]
[30C]

Signal is output upon alarm stop after the protective function of the converter
is activated.
(Contact: 1C. Upon alarm, ON across 30A and 30C)
(Contact capacity: 250 VAC 0.3A cos T =0.3)

General-purpose
transistor output
(Standard: 3 points)

[Y1]
[Y2]
[Y3]

Transistor output circuit specification

28-30V

Y1-Y3

CME

Digital output
common

[CME] Common terminal for transistor output signals. Isolated from terminals CM.

Relay output
(Standard: 1 point)

[Y5A]
[Y5C]

Signal can be selected similarly to Y1 to Y3 terminals.
The contact capacity is the same as that of the batch alarm output.

General-purpose
analog output

[AO1] Outputs monitor signals of analog DC voltage (0 to ±10 VDC).

Analog output
common

[M] Common terminal for analog output terminals

Charging circuit
control output

[73A]
[73C]

Output for controlling external charging circuit
Connect the electromagnetic contactor included in standard accessories.
(Contact capacity: 250 VAC 5A max.)

Item min. typ. max.

Operating
voltage

ON level 0 V - 2 V
OFF level 22 V 22 V 27 V

Operating current at ON - 3.2 mA 4.5 mA
Allowable leakage

current at OFF

- - 0.5 mA

Item min. typ. max.

Operating
voltage

ON level - 1V 2V

OFF level - 24 V 27 V
Max. load current at ON - - 50 mA
Leakage current at OFF - - 0.1 mA

3-9

3.3.3 Terminal layout drawing

(1) Main circuit terminals

Figure 3.3-3 (a) RHC132S to 200S-4DE (Rank 3)

Unit: mm

3-10

Figure 3.3-3 (b) RHC220S to 315S-4DE (Rank 4)

Unit: mm

Select terminal screws so that a clearance
of at least 10 mm with respect to the frame
can be created.

3-11

Figure 3.3-3 (c) RHC630B to 800B-4DE S-PHASE (Rank 4)

Unit: mm

Select terminal screws so that a clearance
of at least 10 mm with respect to the frame
can be created.

3-12

Figure 3.3-3 (d) RHC630B to 800B-4DE R/T-PHASE (Rank 4)

Select terminal screws so that a clearance
of at least 10 mm with respect to the frame
can be created.

Unit: mm

3-13

(2) Control circuit terminals

Figure 3.3-4 RHCS-4DE

Screw size: M4

Screw size: M3

3-14

3.3.4 Basic connection diagrams

Depending upon the converter capacity and the inverter to be used in combination, the wiring method of the filtering
circuit and sequencer differs. In the table below, select the appropriate basic connection diagram and perform wiring
with correct connection sequence and correct polarity. For details of wiring of each section, refer to Section 3.3.5
"Details of Connection."

Basic

connection

diagram

Filtering circuit PWM converter

No. of

converters

Inverter

#1

Filter stack (*1)
RHF160S-4DE

to RHF355S-4DE

MD(CT) mode: RHC132S-4DE to RHC315S-4DE
LD(VT) mode: RHC132S-4DE to RHC315S-4DE

1 Stack type

#2

Configured in

peripheral device

MD(CT) mode: RHC630B-4DE to RHC800B-4DE

LD(VT) mode: RHC630B-4DE to RHC800B-4DE

3

*3 stacks

= 1 set

Stack type

(*1) Contact Fuji Electric if using a peripheral device (73, Fac, Lr, Rf, Lf, Cf) other than a filter stack.

3-15

Basic connection diagram #1

 RHC132S-4DE to RHC315S-4DE in MD(CT) mode
 RHC132S-4DE to RHC315S-4DE in LD(VT) mode

(Note 1) Connect a step-down transformer to lower the voltage of the sequence circuit to voltage shown by figure.

(Note 2) Connect the auxiliary power supply input terminals (R0 and T0) of the PWM converter and inverter to the main

power supply via the normally closed contact of the magnetic contactor (52) for the charging circuit without fail.
For application to a non-grounded power supply, insert an insulated transformer.

(Note 3) The power of the inverter's AC fan is supplied from terminals R1 and T1, so connect it to the main power supply

without passing it through the normally closed contact of 52.

(Note 4) Configure a sequence where preparation for operation of the PWM converter is arranged first before operation

signals are issued to the inverter.

(Note 5) Set the timer of 52T at 1 sec.

(Note 6) When using microswitches for detection of an AC fuse blowout, assign the X1 terminal of the PWM converter to

an external alarm (THR) and connect microswitches in series.

(Note 7) Connect cables to the L1/R, L2/S, L3/T, R1, S1 and T1 terminals in the correct phase order without fail.

(Note 8) When supplying 200 VAC for the fan power supply, remove the short wires from terminals R11 and R12 and

from T11 and T12, and then connect it to terminals R12 and T12. These terminals are used only for internal AC
fans. Do not use for other uses.

(Note 9) When using filter stack RHF-D series, be sure to configure a sequence which uses 73T. Set the timer of 73T at

1sec.

(Note 10) To use the fan power supply individually, remove the short wires from terminals R1 and R3 and from T1 and

T3, and then connect it to terminals R3 and T3.

Symbol Part name of accessory

Lr Boosting reactor

Lf Filtering reactor

Cf Filtering capacitor

Rf Filtering resistor

R0 Charging resistor

Fac AC fuse

Fdc DC fuse

73 Magnetic contactor for charging circuit

52 Magnetic contactor for power supply

㻲㼐㼏

㻲㼍㼏

㻹

㻸㼞

㻼㻔㻗㻕

㻺㻔㻙㻕㼁㼃

㼂

㻳

㻼㻔㻗㻕

㻺㻔㻙㻕

㻳

㼅㻡㻯

㼅㻡㻭

㻟㻜㻯

㻟㻜㻮

㻟㻜㻭

㻾㻝

㼀㻜

㻾㻜

㼀㻝

㻿㻝

㻯㻹

㻾㼁㻺

㼀㻜

㻾㻜

㻯㻹

㼄㻥㻔㼀㻴㻾㻕

㻯㻹

㻲㼃㻰

㻸㻝㻛㻾

㻸㻟㻛㼀

㻸㻞㻛㻿

㻡㻞

㼎

㼍

㻾㻰㼅

㻾㻰㼅

㻻㼜㼑㼞㼍㼠㼕㼛㼚

㼜㼞㼑㼜㼑㼞㼍㼠㼕㼛㼚

㻾㼁㻺

㻲㼄

㻝㻟

㻝㻝

㻝㻞

㼑㻌㼒

㼓
㼔

㼑
㼒

㻟㻜㻯

㻟㻜㻮

㻟㻜㻭

㼍
㼎

㻣㻟㻯

㻣㻟㻭

㻾㻿㼀

㻡㻞㼀

㼓
㼔

㻾㻜

㻸㼒

㻡㻞

㼏
㼐

㻾㻰㼅 㻡㻞㻭 㻡㻞 㻡㻞㼀 㻾㼁㻺 㻲㼄

㼐

㼏

㻡㻞㻭

㻡㻞

㻡㻞㼀

㻻㼜㼑㼞㼍㼠㼕㼛㼚

㻿㼠㼛㼜

㻾㼁㻺

㻲㼄

㻼㼃㻹㻌㼏㼛㼚㼢㼑㼞㼠㼑㼞㻌㼟㼠㼍㼏㼗

㻾㻴㻯㻙㻰㻌㻿㼑㼞㼕㼑㼟

㻵㼚㼢㼑㼞㼠㼑㼞㻌㼟㼠㼍㼏㼗

㼂㻳㻝㻌㻿㼑㼞㼕㼑㼟

㻞㻜㻜㼂㻛㻡㻜㻴㼦
㻞㻞㻜㼂㻛㻢㻜㻴㼦

㻣㻟

㻼㼛㼣㼑㼞㻌

㼟㼡㼜㼜㼘㼥

㻲㼕㼘㼠㼑㼞㻌㼟㼠㼍㼏㼗

㻾㻴㻲㻙㻰㻌㻿㼑㼞㼕㼑㼟

㼖

㼕

㻣㻟㻙㻞

㻣㻟㻙㻝

㼖

㼕

㻣㻟

㻸㻝

㻸㻞

㻸㻟

㼁㻜

㼂㻜

㼃㻜

㻸㻠
㻸㻡

㻸㻢

㻯㻹

㼄㻝㻔㼀㻴㻾㻕

㻞

㻝

㻹㼕㼏㼞㼛㻌㼟㼣㼕㼠㼏㼔㻌
㼒㼛㼞㻌㼐㼑㼠㼑㼏㼠㼕㼚㼓㻌
㻰㻯㻌㼒㼡㼟㼑㻌㼎㼘㼛㼣

㼗㻌㼘

㼀㻝

㻾㻝

㻰㻯㻲㻞

㻰㻯㻲㻝

㻰㻯㻲㻞

㻰㻯㻲㻝

㼗

㼘

㻹㼕㼏㼞㼛㻌㼟㼣㼕㼠㼏㼔㻌
㼒㼛㼞㻌㼐㼑㼠㼑㼏㼠㼕㼚㼓㻌

㻭㻯㻌㼒㼡㼟㼑㻌㼎㼘㼛㼣

㻾㻟

㼀㻟

㼁㻝
㼁㻞

㻻㻺㻮

㻣㻟

㻻㻺㻯

㻻㻺㻭

㻣㻟

㻭㻯㻲㻭㻺

㼙
㼚

㼙

㼚

㻾㻝㻝

㼀㻝㻝
㼀㻝㻞

㻾㻝㻞

㻯㼒

㻲㼍㼏

㻲㼍㼏

㻳

㻔㻺㼛㼠㼑㻝㻕

㻔㻺㼛㼠㼑㻞㻕㻔㻺㼛㼠㼑㻟㻕

㻔㻺㼛㼠㼑㻣㻕

㻔㻺㼛㼠㼑㻢㻕

㻔㻺㼛㼠㼑㻤㻕

㻔㻺㼛㼠㼑㻡㻕

㻾㼒

㻲㼁㻿㻝

㻲㼁㻿㻞

㻣㻟㼀

㻔㻺㼛㼠㼑㻥㻕

㻾㻟

㼀㻟

㻔㻺㼛㼠㼑㻝㻜㻕

㻔㻺㼛㼠㼑㻠㻕

3-16

Basic connection diagram #2

 RHC630B-4DE to RHC800B-4DE in MD(CT) mode

㻌

㻌

 RHC630B-4DE to RHC800B-4DE in LD(VT) mode

630㹼800kW Stack type inverter (Phase-specific stack) is consist of three set of Standard stacks of RANK 4 size.

In addition to the example of connection of the above-mentioned standard stack, you need connection between each

stacks. The example of connection is shown below

㼏
㼐

㻸㼞

㼎

㼍

㻾㻰㼅

㻾㻰㼅

㻻㼜㼑㼞㼍㼠㼕㼛㼚

㻼㼞㼑㼜㼍㼞㼍㼠㼕㼛㼚

㻡㻞㼀

㼓
㼔

㻔㻺㼛㼠㼑㻡㻕

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(Note 1) Connect a step-down transformer to reduce the voltage of the sequence circuit to 220 V or below.

(Note 2) Connect the auxiliary power supply input terminals (R0 and T0) of the PWM converter and inverter to the main

power supply via the normally closed contact of the magnetic contactor (52) for the power supply circuit without
fail. For application to a non-grounded power supply, insert an insulated transformer.

(Note 3) The power of the inverter's AC fan is supplied from terminals R1 and T1, so connect it to the main power supply

without passing it through the normally closed contact of 52.

(Note 4) Configure a sequence where preparation for operation of the PWM converter is arranged first before operation

signals are issued to the inverter.

(Note 5) Set the timer of 52T at 1 sec.

(Note 6) Assign any of the X1 through X9 terminals of the inverter stack to an external alarm (THR).

(Note 7) Connect cables to the L1/R, L2/S, L3/T, R2, T2, R1, S1 and T1 terminals in the correct phase order without fail.

(Note 8)

To use the fan power supply individually, remove the short wires from terminals R1 and R3 and from T1 and

T3, and then connect it to terminals R3 and T3.

Symbol Part name of accessory

Lr Boosting reactor

Lf Filtering reactor

Cf Filtering capacitor

Rf Filtering resistor

R0 Charging resistor

Fac AC fuse

Fdc DC fuse

73 Magnetic contactor for charging circuit

52 Magnetic contactor for power supply

6F Magnetic contactor for filtering circuit

3-17

3.3.5 Details of connection

Connect (1) Main power supply circuit, (2) DC link circuit, (3) Grounding circuit, (4) Control circuit, (5) Auxiliary
control power input circuit in this order.

For the cable size, refer to Section 3.3.7 "Cable Size Applicable to Main Circuit."

• Check that the power is turned off (with open circuit) before conducting wiring.

Electric shock may result.

• Do not turn on the converter with missing or dropping parts or damage given during transportation.

Electric shock or fire may result.

• Check that the phases and rated voltage of the product agree with the phases and voltage of the AC power
supply.

Injury may result.

• Keep consistency in the polarity between the DC power supply terminals P (+) and N (-) of the converter and
the main circuit DC terminals P (+) and N (-) of the inverter.

Fire may result.

• The PN wiring length to the DC link bus terminal must not exceed 5 m.

Fire may result.

(1) Main circuit power supply input terminals (L1/R, L2/S and L3/T)

RHC132S to 315S-4D (Filter stack)

Connect the L1/R, L2/S and L3/T main circuit power supply terminals to the U0, V0 and W0 terminals of the
dedicated filter stack.

RHC630B to 800B-4D (Peripheral devices)

Connect the L1/R, L2/S and L3/T main circuit power supply terminals via AC fuses, boosting reactors, filtering
circuits, magnetic contactors (52) for the power supply, MCCB or RCD/ELCB to the power supply as shown in
Figure 3.3-5.

L1/R L3/TL2/S

R1

T1

S1

Power

supply

Circuit
breake

r

Control terminal

Boosting
reactor

Main power supply

input terminal

Reactor for
harmonic filter

Capacitor for harmonic filter

Resistor for harmonic filter

AC fuse

52

Figure 3.3-5 Connection of Main Circuit Power Supply

3-18

a) The wiring distance between the capacitor for harmonic filter and power supply line must not exceed 5 m.

Note: Otherwise the wiring inductance deteriorates the effect of the filter.

L1/R L3/TL2/S

Boosting
reactor

Capacitor for harmonic filter

L d 5m

Main power supply
input terminal

Resistor for harmonic filter

Figure 3.3-6 W iring Length of Filtering Capacitor

b) Connection of filtering resistor

Since a filtering resistor generates heat, install it at a place where other devices are not subject to the heat. Note
that the wiring length should be 5 m or less.

• Connect the reactor for harmonic filter and boosting reactor in correct positions.

Fire may result.

Note: There is danger of a broken converter.

c) When connecting the reactor for harmonic filter, do not make a mistake in the positions of the reactor for

harmonic filter, resistor for harmonic filter, capacitor for harmonic filter and boosting reactor.

L1/R L3/TL2/S

R1

T1

S1

52

Boosting
reactor

Main power
supply input
terminal

Reactor for
harmonic filter

Power supply

Capacitor for harmonic filter

Control terminal

Resistor for harmonic filter

Figure 3.3-7 Connection of Reactor

3-19

d) Connect an electromagnetic contactor (MC) for power supply so that the converter or inverter can be disconnected

from the power supply upon activation of the protective function to prevent the failure or accident from
propagating.

L1/R L3/TL2/S

R1

T1

S1

52

T0

R0

Control
terminal

Circuit
breaker

Power supply

Reactor for
harmonic filter

Main power supply
input terminal

Control power

supply terminal

Figure 3.3-8 Connection of Magnetic Contactor

• Never connect a DC reactor.

Fire may result.

Note: Otherwise the voltage of the DC circuit resonates to become unstable, possibly resulting in breakage of

equipment.

3-20

(2) Converter output terminals (P(+), N(-))

Connect the converter output terminals (P(+) and N(-)) to the inverter DC input P(+) and N(-). The premise is that
this connection uses busbars. When using wires for connection, however, keep the wiring length between stacks
within 2 m. When using wires for connection to the PN branch bars or PN branch terminals, keep the wiring length
within 2 m and put the wires close together (or twist them together).

Figure 3.3-10 Restrictions on Using Wires for Connection to PN Terminals

(3) Grounding circuit

• Be sure to connect the grounding terminal E (G).

Fire may result.

Be sure to connect the grounding terminal E (G) of the PWM converter and that of the filter stack for safety and
noise reduction.
From the view of noise reduction, a low circuit impedance is necessary to suppress noise generation and reduce
mutual effects on pieces of equipment. Therefore connect a thick and short cable from the grounding terminal to the
grounding electrode prepared in common with the inverter system.

PN busbar

DCF

Within
2 m

Within
2 m

Converter
stack

Inverter
stack

PN branch bar
(PN branch terminal

)

Put close together

DCF

Converter
stack

Inverter
stack

Within 2 m
between stacks

Use identical
wires.

Put close together

3-21

(4) Control circuit

In general, the covers of the control signal wires are not specifically designed to withstand a high voltage (i.e.,
reinforced insulation is not applied). Therefore, if a control signal wire comes into direct contact with a live
conductor of the main circuit, the insulation of the cover might break down, which would expose the signal wire
to a high voltage of the main circuit. Make sure that the control signal wires will not come into contact with live
conductors of the main circuit.

Failure to observe these precautions could cause electric shock or an accident.

• Noise generates from the converter, inverter, motor and cables. Be careful of malfunction of nearby sensors and
devices.

Accidents may result.

• Take care of the polarity of the external power supply.

Failure may result.

Notes:

- Do not add voltage to control terminals other than control terminals Y5A, Y5C, 30A, 30B, 30C, 73A and 73C.
Otherwise the converter will be broken.

- The common terminals CM and CME are isolated from each other. Do not connect across these terminals.
Otherwise mutual interference of circuits may cause malfunction. As well, do not ground the common terminal.

a) R1, S1 and T1 terminals

The R1, S1 and T1 terminals serve as input terminals of reference signals of the converter. Connect these
terminals to the power supply side of a reactor for harmonic filter free from waveform distortion. The wiring
length must not exceed 5 m.

L1/R L3/TL2/S

R1

T1

S1

52

T0

R0

Control
terminal

Circuit
breaker

Power supply

Reactor for
harmonic filter

Main power supply
input terminal

Control power

supply terminal

Figure 3.3-11 Connection of Voltage Detection Terminals

3-22

b) Digital input terminals (RUN, X1, RST, PLC and CM)

1) Normally a circuit across the digital input terminal and the CM terminal is connected or disconnected. On the
other hand, if the open collector output of a programmable logic controller driven by an external power supply is
used to turn on or off, a routing circuit may cause malfunction.
If this happens, use a PLC terminal to connect as shown in Figure 3.3-12.

2) When using a contact input, use a contact free from contact faults having high contact reliability.
Example: Fuji Electric's control relay HH54PW

Programmable
logic controller

Converter

PLC

RUN, X1, RST

CM

24 VDC

External
power
supply

Figure 3.3-12 Prevention of Routing Caused by External Power Supply

c) Transistor output terminals (Y1, Y2, Y3 and CME)

1) Take care of the polarity of the external power supply.

2) When connecting a control relay, connect a surge absorbing diode at both ends of the exciting coil.

d) Contact output terminals (Y5A, Y5C, 30A, 30B and 30C)

Contact capacity is 250 VAC 0.3A cos T = 0.3. If these specification values are exceeded, connect a relay having a
larger contact capacity. If two or more contacts are necessary, connect a relay having multiple contacts to increase
contacts.

X

30A

30B

30C

Power supply

Contacts

Contact
output

30

Figure 3.3-13 Increase in Contact Capacity and Number of Contacts

e) Charging circuit control signals

(73A and 73C)

These are control output signals for the charging circuit. Perform wiring, referring to the basic connection
diagrams.

f) Charging circuit drive input

(73-1 and 73-2)

These are control input signals for the charging circuit. Perform wiring, referring to the basic connection
diagrams.

3-23

g) Connection of surge absorber

When an exciting coil of an electromagnetic contactor, relay or the like in the control circuit or periphery circuit
of the converter is opened or closed, surge voltage (noise) generates according to a steep change of the current.
This surge voltage may cause malfunction of the converter control circuit or peripheral devices. If this happens,
connect a surge absorber at both ends of the faulty coil.

X Y Z

AC DC

+

-

Diode

S2-A-O

or

S1-B-O

S2-A-O

or

S1-B-O

Exciting

coil

Figure 3.3-14 Connection of Surge Absorber

3-24

h) Wiring for control circuit

1) Route the control circuit wiring along the left-hand side of the converter as shown in Figure 3.3-15.

2) Route the auxiliary control power input wiring and auxiliary fan power input wiring along the right-hand side of
the converter as shown in Figure 3.3-15.

Note: For wires to be connected to the control circuit terminals, use shielded wires or twisted vinyl wires.

Figure 3.3-15 Routes of Control Circuit Wiring

Control terminals

Control circuit wiring

A

uxiliary control power input

wiring

A

uxiliary fan power input

wiring

3-25

i)Wiring between stacks of Phase-specific stack type

In case of Phase-specific stack type (RHC630-800B-4DE), you need to wire between each stacks after installation
the inverters. Refer to Figure3.3-16㹼3.3-18.

Figure3.3-16 Wiring between GATE P.C.B, FUSE P.C.B and POWER P.C.B of Phase-specific stack type

663

3+$6(

773

3+$6(

553

3+$6(

3-26

Figure3.3-17 Wiring between AUXILIARY POWER P.C.B ,CT(current detector) cable of Phase-specific stack type.

Figure3.3-18 Detail of A that is wiring route of CT cable of Phase-specific stack type.

663

3+$6(

773

3+$6(

553

3+$6(

$$



3-27

(5) Auxiliary control power supply circuit

• To apply to inverters belonging to group A, C, or E shown in Table 3.3-3, connect the control power auxiliary
input (R0 and T0) through the b contact of an electromagnetic contactor (52).

Fire may result.

Note: The energy of the boosting reactor may obstruct the control power supply circuit through the source circuit

during converter operation, possibly causing an overheated or burned control power supply circuit. Be sure to
connect through the b contact of the electromagnetic contactor (52) to the main power supply.

The wiring pattern of the R0 and T0, R1 and T1 terminals to the inverter varies according to the applicable inverter.
As listed below, perform wiring according to the applicable inverter groups.

Table 3.3-3 Wiring Method to R0/T0/R1/T1 Terminal

Applicable inverter R0 and T0 terminal wiring method R1 and T1 terminal wiring method

FRN30SVG1S-4
to FRN75SVG1S-4

Insert b contact of the contactor (52) in
the wiring of R0 and T0.

No R1 or T1 terminal

FRN90SVG1S-4 or above

Refer to the basic connection
diagrams given in Section 3.3.4.

The converter operates even if the power is not supplied to the control power supply auxiliary input (R0 and T0)
terminals. If the power supply electromagnetic contactor of the converter is turned off (with an open circuit) after the
protective circuit is activated, the control circuit of the converter is turned off, too, to stop alarm warning outputs
(30A, 30B and 30C) and cancel alarm display. To prevent this, supply the same AC voltage as that of the main circuit
power supply to the control power supply auxiliary input (R0 and T0) terminals.

• Precautions for application to non-grounded power supply

If the converter is connected to a non-grounded power supply, a grounding fault accident occurring at the inverter
output configures a routing circuit via the ground, causing breakage of the inverter.

To connect to the non-grounding power supply without possibility of breakage, connect an insulated transformer
between the power supply and R0 and T0 for each of the converter and inverter. In this case, there is no need to
insert the normally closed contact of 52 relay.

Connection of an insulated transformer is also recommended for an unknown power supply.

Choose the capacity of the transformer according to the capacity requirements of the converter and inverter, based on
the table below.

Model

Capacity of

transformer

Applicable converter

RHC 200VA

RHC132S-4DE㹼RHC315S-4DE
RHC630B-4DE㹼RHC800B-4DE

Model

Capacity of

transformer

Applicable inverter

SVG1 200VA

FRN30SVG1S-4E㹼FRN315SVG1S-4E
FRN630BVG1S-4E㹼FRN800BVG1S-4E

VG1

G1

150VA FRN22VG1S-4 or below
200VA

FRN30VG1S-4㹼FRN220VG1S-4

300VA

FRN280VG1S-4㹼FRN630VG1S-4

3-28

(6) Fan power switching connector (CN UX)

When the main circuit source voltage is within the
range shown in Table 3.3-4, set the auxiliary power
switching connector "CN UX" on the U2 position. In
other cases, leave it on the U1 position (factory default).
For detailed switching instructions, see Figure 3.3-20.

Some inverters are equipped with similar auxiliary
power switching connector "CN UX." For them, change
the connector position in the same way. For detailed
switching procedure, refer to the inverter's instruction
manual.

Table 3.3-4 Main Circuit Source Voltage Requiring

Configuration Change of Fan Power
Switching Connector

Frequency (Hz) Source voltage range (V)

50 380 to 398

60 380 to 430

The switching connectors are located on the power printed circuit board located above the
control printed circuit board as shown in the figure at the right.



Note: To remove each of the jumpers, pinch its upper part of the tab between your fingers,
unlock it, and pull it up.

When mounting the jumper, fit it over the connector until it snaps into place.

<Enlarged view A>

The factory default position of CN UX is U1.

<Detail odd angle view A>

Factory default Jumper removed from After switching
(CN UX: U1) the connector (CN UX: U2)

Figure 3.3-20 Power Switching Connector

CN UX

A

R0 T0

A

uxiliary control power

input terminal

Fan power switching
connector (CN UX)

U1 U2

CN UX (red)

3-29

3.3.6 Precautions for installation

(1) The circuit breaker on the power supply side may trip according to some failures of the converter.

In such a case, the auxiliary power supply is also turned off and the failure is not retained. When the circuit
breaker is turned on to turn on the contactor, the breakage inside the converter may propagate.
To prevent this kind of trouble from propagating, it is recommended to retain the alarm signal of the converter
in an electrically reset relay.

The circuit without an electrically reset relay is shown below.

Figure 3.3-21 Precautions for installation

(2) Because a high frequency current flows through the boosting reactor, the reactor itself generates slight

electromagnetic noise.

(3) Be sure to connect to a power supply rated at larger than the power supply capacity requirement specified in

Section 10.1 "Standard Specifications."
(If the power supply capacity is too small, the converter and/or inverter may be broken due to distortion of
waveform of the power supply.)
Among all, problems may arise if the power supply boosted with a small capacity transformer is used for the
main circuit power supply for the sequence check of the control panel. In this case, disconnect the circuit across
RUN and CM of the converter and perform the sequence check of other parts without operating the converter.

52

RUN

30A
30C

Opera­tion

FX

Operation
preparation

S

30X

R

30

Reset

30X

RUN

CM

THR

CM

FWD

CM

30A

30B

30C

Y5

A

Y5C

30C

30C

30A

30B

30C

PWM converter

Inverter

30A

30A

52

30

RUN

FX

30X

RUN

CM

THR

CM

FWD

CM

30A

30B

30C

Y5

A

Y5C

30B

30C

30A

30B

30C

PWM converter

Inverter

52

RUN

30B
30C

Operation

FX

Operation
preparation

RUN

FX

52

3-30

3.3.7 Tightening torque and wire size for devices applicable to the main circuit

(1) Tightening torque

Converter stack

Type Tightening torque (N•m)

RHC-4DE

Input circuit

[L1/R, L2/S, L3/T]

Output circuit

[P(+), N(-)]

Grounding

terminals

[

G]

[R0, T0]

[R1, S1, T1]

[R2, T2]
[R3, T3]

[73A, 73C]

[DCF1,

DCF2]

Control terminals

M3 screw M4 screw

132S

48 48 48 1.8 0.5 0.7 1.2

160S

200S

220S

280S

315S

630B

710B

800B

(2) Recommended wire size

Converter stack (Ambient temperature: 40°C)

RHC-4DE

Main power input

[L1/R L2/S, L3/T],

Converter output

[P(+), N(-)]

Grounding

terminals

[ G]

(mm2)

Filtering

resistor

circuit

(mm2)

Charging

resistor

circuit

(mm2)

[R0, T0]

[R1, S1, T1]

[R2, T2]
[R3, T3]

[73A, 73C]

(mm

2

)

Control

terminals

[DCF1,

DCF2]

(mm

2

)

MD(CT)

mode

LD(VT)

mode

Bus bar

sizes

(mm

2

)

Wire sizes

(mm

2

)

Bus bar

sizes

(mm

2

)

Wire sizes

(mm

2

)

132S -

t5×30

(150)

60

t4×40

(160)

60 22

--

21.25

160S 132S 100 100 38

200S 160S

150 150

60

- 200S

220S -

t10×30

(300)

t8×50

(400)

280S - 200 200

315S 280S 250 250

- 315S 325 325 100

630B -

t10×125

(1250)

325×2

t8×50

(400)

-

150

60

3.5

710B 630B 325×3

100

800B 710B 325×4

- 800B 325×5 200

(Note 1) The wire size in the above table is for the 600 V HIV insulated wires.

(Note 2) The size of wire or bus bar of stack by phase is a part for 1 phase (1 stack).

(3) Rated current of Cu bus bars

Table 3.3-5” shows the rated currents of bus bars. However, if the ambient temperature of the cabinet is lower

than 40°C and in some other cases, the derating of the current must be considered.

[Precaution about the application of the current and capacity table of bus bars]

Select a bus bar based on a temperature of 70°C, which means a temperature rise of 30 K from an ambient
temperature of 40°C. If ambient temperature drops below 40°C, the value of temperature rise increases. Consider
a correction factor according to “Figure 3.3-22 Temperature correction factor.” In addition, the reduction rate of

3-31

the supplied current depends on the layout of bus bars. When supplying a large current, plan the current by
making reference to Figure 3.3-23

Figure 3.3-22 Temperature correction factor Figure 3.3-23 Derating in installation direction (reference)

Table 3.3-5

Rated currents of CU bus bars

㻺㼛㼠㻌㼜㼍㼞㼍㼘㼘㼑㼘 㻞㻌㼜㼍㼞㼍㼘㼘㼑㼘 㻟㻌㼜㼍㼞㼍㼘㼘㼑 㼘

㼀㼔㼕㼏㼗㼚㼑㼟㼟 㻰㻯 㻭㻯㻌㻔㻡㻜㻛㻢㻜㻌㻴㼦㻕 㻰㻯 㻭㻯㻌㻔㻡㻜㻛㻢㻜㻌㻴㼦㻕 㻰㻯 㻭㻯㻌㻔㻡㻜㻛㻢㻜㻌㻴㼦㻕

㻠㻡 㻝㻤㻜 㻝㻤㻜
㻢㻜 㻞㻞㻡 㻞㻞㻡
㻣㻡 㻞㻣㻡 㻞㻣㻡

㻥㻜 㻟㻞㻜 㻟㻞㻜
㻝㻜㻜 㻟㻞㻡 㻟㻞㻡
㻝㻞㻜 㻟㻤㻜 㻟㻣㻡
㻝㻢㻜 㻠㻤㻡 㻠㻤㻜
㻝㻞㻡 㻟㻣㻜 㻟㻢㻡
㻝㻡㻜 㻠㻟㻜 㻠㻞㻡
㻞㻜㻜 㻡㻡㻜 㻡㻠㻜
㻞㻡㻜 㻢㻢㻜 㻢㻡㻜
㻟㻜㻜 㻣㻤㻜 㻤㻢㻜
㻟㻣㻡 㻥㻡㻜 㻥㻟㻜 㻝㻥㻞㻜 㻝㻣㻥㻜
㻝㻡㻜 㻠㻝㻜 㻠㻝㻜
㻝㻤㻜 㻠㻤㻜 㻠㻣㻜
㻞㻠㻜 㻢㻝㻜 㻢㻜㻜
㻟㻜㻜 㻣㻟㻜 㻣㻞㻜
㻟㻢㻜 㻤㻢㻜 㻤㻠㻜
㻠㻡㻜 㻝㻜㻡㻜 㻝㻜㻝㻜 㻞㻜㻥㻜 㻝㻥㻝㻜
㻠㻤㻜 㻝㻝㻝㻜 㻝㻜㻣㻜 㻞㻝㻥㻜 㻞㻜㻜㻜
㻢㻜㻜 㻝㻟㻡㻜 㻝㻞㻤㻜 㻞㻢㻞㻜 㻞㻟㻟㻜 㻟㻢㻣㻜 㻟㻜㻢㻜
㻞㻜㻜 㻡㻜㻜 㻠㻥㻜
㻞㻠㻜 㻡㻣㻜 㻡㻢㻜
㻟㻞㻜 㻣㻞㻜 㻣㻜㻜
㻠㻜㻜 㻤㻢㻜 㻤㻠㻜
㻠㻤㻜 㻝㻜㻝㻜 㻥㻣㻜
㻢㻜㻜 㻝㻞㻞㻜 㻝㻝㻢㻜 㻞㻟㻥㻜 㻞㻝㻞㻜
㻢㻠㻜 㻝㻞㻥㻜 㻝㻞㻞㻜 㻞㻡㻝㻜 㻞㻞㻝㻜
㻤㻜㻜 㻝㻡㻤㻜 㻝㻠㻣㻜 㻞㻥㻥㻜 㻞㻡㻢㻜 㻠㻞㻟㻜 㻟㻟㻟㻜
㻟㻜㻜 㻢㻣㻜 㻢㻡㻜 㻝㻠㻡㻜 㻝㻟㻥㻜
㻠㻜㻜 㻤㻟㻜 㻤㻜㻜 㻝㻣㻟㻜 㻝㻢㻜㻜
㻡㻜㻜 㻥㻥㻜 㻥㻡㻜 㻞㻜㻝㻜 㻝㻤㻝㻜
㻢㻜㻜 㻝㻝㻡㻜 㻝㻜㻥㻜 㻞㻞㻤㻜 㻞㻜㻝㻜
㻣㻡㻜 㻝㻟㻥㻜 㻝㻞㻥㻜 㻞㻢㻤㻜 㻞㻞㻥㻜
㻤㻜㻜 㻝㻠㻢㻜 㻝㻟㻢㻜 㻞㻤㻝㻜 㻞㻟㻤㻜

㻝㻜㻜㻜 㻝㻣㻤㻜 㻝㻢㻞㻜 㻟㻟㻝㻜 㻞㻣㻟㻜 㻠㻣㻡㻜 㻟㻠㻥㻜
㻝㻞㻡㻜 㻞㻝㻡㻜 㻝㻥㻟㻜 㻟㻥㻟㻜 㻟㻝㻢㻜 㻡㻡㻣㻜 㻟㻥㻢㻜
㻝㻡㻜㻜 㻞㻡㻡㻜 㻞㻞㻢㻜 㻠㻡㻡㻜 㻟㻡㻥㻜 㻢㻠㻝㻜 㻠㻠㻡㻜
㻝㻡㻜㻜 㻞㻟㻥㻜 㻞㻝㻜㻜 㻠㻞㻥㻜 㻟㻟㻜㻜 㻢㻝㻠㻜 㻠㻝㻞㻜
㻝㻤㻜㻜 㻞㻤㻜㻜 㻞㻠㻟㻜 㻠㻥㻟㻜 㻟㻣㻜㻜 㻣㻜㻜㻜 㻠㻡㻥㻜
㻝㻡㻜㻜 㻞㻝㻝㻜 㻝㻥㻞㻜 㻙 㻙 㻙 㻙
㻞㻞㻡㻜 㻟㻝㻢㻜 㻞㻢㻢㻜 㻡㻡㻝㻜 㻟㻤㻣㻜 㻣㻥㻜㻜 㻠㻣㻥㻜
㻞㻢㻞㻡 㻟㻡㻡㻜 㻞㻥㻢㻜 㻢㻜㻤㻜 㻠㻞㻠㻜 㻤㻢㻢㻜 㻡㻞㻜㻜
㻟㻜㻜㻜 㻠㻜㻣㻜 㻟㻟㻡㻜 㻢㻤㻡㻜 㻠㻢㻤㻜 㻥㻢㻤㻜 㻡㻣㻜㻜

㻝㻣㻡
㻞㻜㻜

㻝㻞

㻝㻡

㻝㻞㻡
㻝㻡㻜
㻝㻜㻜
㻝㻡㻜

㻞㻡
㻟㻜

㻰㼕㼙㼑㼚㼟㼕㼛㼚㻌㼇㼙㼙㼉

㻠㻜

㼃㼕㼐㼠㼔

㻟

㻝㻡
㻞㻜

㻞㻡

㻣㻡

㻡㻜
㻢㻜

㻞㻡

㻞㻡
㻟㻜

㻡㻜
㻢㻜

㻟㻜

㻝㻜㻜

㻞㻡

㻙

㻤㻜

㻡㻜

㻟㻜
㻠㻜

㻝㻜㻜

㻠㻜

㻣㻡

㻢㻜

㻟㻜
㻠㻜

㻙㻙

㻙㻙

㻙

㻙㻙

㻙㻙

㻯㼞㼛㼟㼟㻌㼟㼑㼏㼠㼕㼛㼚㻌㼇㼙㼙

㻞

㼉

㻝㻡㻜

㻙㻙㻙㻙

㻙㻙

㻝㻜㻜
㻝㻞㻡

㻣㻡

㻟㻜

㻝㻜

㻤

㻢

㻤㻜

㻤㻜

㻡㻜
㻢㻜

㻙㻙㻙㻙

㻡

㻠

㻙㻙

㻣㻡

㻠㻜

(Note) *1 The selection conditions applied to this table are ambient temperature: 40°C and temperature rise: 30K.

*2 The layout of bus bars is a vertical layout.

3-32

3.3.8 Peripheral devices

(1) RHC132S to 315S-4DE Filter stack application table

MD (CT) mode

RHC-D type

RHF-D (*1)

Rated current

of MCCB

and ELCB(A)

Magnetic

contactor (52)

Fuse (Fac) Microswitch

Type Qty Type Qty. Type Qty. Type Qty.

RHC132S-4DE RHF160S-4DE 1 300 SC-N8 1 170M5446 3

170H3027 3

RHC160S-4DE RHF160S-4DE 1 350 SC-N11 1 170M6546 3

RHC200S-4DE RHF220S-4DE 1 500 SC-N12 1 170M6547 3

RHC220S-4DE RHF220S-4DE 1 500 SC-N12 1 170M6547 3

RHC280S-4DE RHF280S-4DE 1 600 SC-N14 1 170M6499 3

RHC315S-4DE RHF355S-4DE 1 700 SC-N14 1 170M6500 3

LD (VT) mode

RHC-D type

RHF-D (*1)

Rated current

of MCCB

and ELCB(A)

Magnetic

contactor (52)

Fuse (Fac) Microswitch

Type Qty. Type Qty. Type Qty. Type Qty.

RHC132S-4DE RHF160S-4DE 1 350 SC-N11 1 170M5446 3

170H3027 3

RHC160S-4DE RHF220S-4DE 1 500 SC-N12 1 170M6546 3

RHC200S-4DE RHF220S-4DE 1 500 SC-N12 1 170M6547 3

RHC280S-4DE RHF355S-4DE 1 700 SC-N14 1 170M6499 3

RHC315S-4DE RHF355S-4DE 1 800 SC-N14 1 170M6500 3

(*1) Contact Fuji Electric if using a peripheral device (73, Fac, Lr, Rf, Lf, Cf) other than a filter stack.

(2) MCCB/ELCB applicable table

Converter stack type

Rated current of

MCCB and ELCB(A)

MD (CT)

specifications

LD (VT)

specifications

RHC132S-4DE 300

RHC160S-4DE RHC132S-4DE 350

RHC200S-4DE RHC160S-4DE 500

RHC220S-4DE RHC200S-4DE 500

RHC280S-4DE - 600

RHC315S-4DE RHC280S-4DE 700

- RHC315S-4DE 800

RHC630B-4DE 1400

RHC710B-4DE RHC630B-4DE 1600

RHC800B-4DE RHC710B-4DE 1800

- RHC800B-4DE 2200

The above table lists the rated current of MCCBs and RCD/ELCBs to be used in the power contro

l

p

anel with an internal temperature of lower than 50qC. The rated current is factored by a correctio

n

coefficient of 0.90 (800AF or below) or 0.85 (1000AF or above) as the RCDs'/MCCBs' and ELCBs'
original rated current is specified when using them in a surrounding temperature of 40qC or lower.
Select an MCCB and/or RCD/ELCB suitable for the actual short-circuit breaking capacity needed fo

r

your power systems.

3-33

(3) RHC630B to 800B-4DE List of peripheral devices

MD (CT) mode

RHC-D type

Charging circuit

contactor

Power supply

contactor

Charger resistor AC fuse

(73) Qty. (52) Qty. (R0) Qty. (Fac) Qty.

RHC630B-4DE SC-N3 1

SC-N12 3

GRZG400 1:

2 parallel

6

SA598473 2

RHC710B-4DE

SC-N4 1 HF5G2655 2

RHC800B-4DE SC-N14 3

RHC-D type

Boosting reactor Filtering resistor Filtering reactor Filtering capacitor

(Lr) Qty. (Rf) Qty. (Lf) Qty. (Cf) Qty.

RHC630B-4DE LR4-630C 1 RF4-630C 1 LFC4-630C 1 CF4-630C 1

RHC710B-4DE LR4-710C 1 RF4-710C 1 LFC4-710C 1 CF4-710C 1

RHC800B-4DE LR4-800C 1 RF4-800C 1 LFC4-800C 1 CF4-800C 1

RHC-D type

Filter circuit contactor

(6F) Qty.

RHC630B-4DE SC-N7/SF 1

RHC710B-4DE

SC-N11/SF 1

RHC800B-4DE

LD (VT) mode

RHC-D type

Charging circuit

contactor

Power supply

contactor

Charger resistor AC fuse

(73) Qty. (52) Qty. (R0) Qty. (Fac) Qty.

RHC630B-4DE

SC-N4 1

SC-N12 3

GRZG400 1:

2 parallel

6

HF5G2655 2

RHC710B-4DE SC-N14 3

RHC800B-4DE SC-N16 3

Contact your

Fuji Electric

representative

separately.

RHC-D type

Boosting reactor Filtering resistor Filtering reactor Filtering capacitor

(Lr) Qty. (Rf) Qty. (Lf) Qty. (Cf) Qty.

RHC630B-4DE LR4-710C 1 RF4-710C 1 LFC4-710C 1 CF4-710C 1

RHC710B-4DE LR4-800C 1 RF4-800C 1 LFC4-800C 1 CF4-800C 1

RHC800B-4DE LR4-1000C 1 RF4-1000C 1 LFC4-1000C 1 CF4-1000C 1

RHC-D type

Filter circuit contactor

(6F) Qty.

RHC630B-4DE

SC-N11/SF 1

RHC710B-4DE

RHC800B-4DE

3-34

3.3.9 Connecting optional devices

If the power supply capacity is small, voltage distortion is not completely suppressed and electromagnetic noise

may generate from the power supply transformer or other devices even if filters are installed.

Noise immunity of peripheral devices and wiring method of the main circuit give large effects on noise, so that the

following devices may not be enough to suppress noise.
Use shielded cables, metallic piping and other measures for the wiring up to the motor.

(1) Noise suppression option

The following pieces of optional equipment are prepared.
Choose them when necessary.

Name (Model) Function

Ferrite ring for suppression of
radio noise
(ACL-B)

Applicable for suppression of radio noise.

Be sure to install it as shown in below Figure, id not might cause “DC fuse blown” by
mistake.

Power filter Use to suppress noise generating from inverter.

Capacitor for harmonic filter
to reduce radio noise

Use to decrease radio noise.

The effect of the noise decrease is achieved for the frequency band of 1 MHz or less
that is the AM Radio Frequency belt.

For models and dimensioned drawings of the zero phase sequence reactor and the capacitor for harmonic filter, refer
to catalog "Fuji's Inverter FRENIC Series Options" (MH596) and user’s manual "FRENIC-VG series For the
STACK type"(24A7--0018).

P(+)

N(-)

T0

R0

T0

R0

P(+)

N(-)

T0

R0

L1/R

L3/T

L2/S

T0R0

Lr

52

Lf

Cf

Rf

R2

T2

F

R0

73

R1

T1

S1

R3
T3

Capacitor

for

harmonic

filter

Filter

FAB

Ferrite
ring

Power filter

Ferrite
ring

Converter Inverter

M

U

W

V

G

Figure 3.3-24 Connecting Optional Devices

4-1

4 Preparation for Operation

4.1 Inspection and Preparation

Before start, check the following.

(1) Connection

• Check that the power cables are not connected to
converter output terminals P (+) or N (-).

• Check that wiring to R1, S1 and T1 are made.

• Check that wiring to 73A and 73C are made in
compliance with the basic connection diagram.

• Check that the boosting reactor and filter are
connected in compliance with the basic connection
diagram.

• Check that the grounding terminal is securely
grounded.

• When the filter stack applies, check that main
power inputs L1, L2 and L3 and main power
outputs U0, V0 and W0 are not reversely
connected.

• When the filter stack applies, contactor control
inputs 73-1 and 73-2 for the charging circuit are
connected in compliance with the basic connection
diagram.

(2) Check that there is no short-circuit or grounding

fault across terminals or naked charged parts.

(3) Check that terminals, connectors and screws are

not loosened.

(4) Before turning the power ON, check that the

switches are turned OFF so that turning the power
ON does not cause the inverter to start or
malfunction. Remove the short bar (if any)
between RUN and CM of the converter.

(5) After turning the power ON, check that:

a) The charge lamp lights up.

b) The LCD monitor on the keypad displays data

specified with function code F04 (LED monitor).

(By factory default, the input power displays.)

(Check if an alarm is displayed.)

c) The fans incorporated in the converter and filter

stack rotate.

4.2 Driving Method

• Keep away from the heat sink because it becomes
very hot.

Burns may result.

There are various driving methods. Choose the most
suitable one, referring to the basic connection diagram.

4.3 Test Run

• Be sure to mount the front cover before turning the
power ON

(closed circuit). Do not remove the

cover when the power is ON.

• Do not operate switches with wet hands.

Electric shock may result.

After checking that these is no problem in Section 4.1,
arrange wiring for actual operation and perform a test
run (with short-circuited between RUN and CM of the
converter).

For the test run procedure of the inverter, refer to the
inverter instruction manual.

(1) Turn the power ON and check that the bar graph

shows the correct input voltage and power supply
frequency.

(2) Check that the RUN LED on the keypad is lit.

(3) Select LED Monitor 4 (DC LINK VOLTAGE) and

check that the displayed value is within the
following range. The DC link bus voltage should
be automatically adjusted within the following
range.

Voltage range: 640 to 710 V

(4) Perform a test run of the inverter.

After checking for correct operation in the above test
run, start regular operation.

Notes

• In the event of a fault in the converter, inverter or
motor, immediately stop it. Investigate the cause of
the fault, referring to Section 7.3 "Troubleshooting"
or the inverter instruction manual.

• If the circuit breaker is turned ON (closed circuit) to
supply power, voltage is output across DC output
terminals P(+) and N(-) even if no run command is
entered to the converter (even without connection
across control terminals RUN and CM).

• To touch the electric circuit even after the power is
shut down, make sure that the charge lamp is OFF or
the voltage on the circuit has dropped to the safe level
using a multimeter. This is because even if the power
is shut down, the smoothing capacitors remain
charged and require time to be discharged.

5-1

5 Operation Using the Keypad

5.1 Appearance

ccLED monitor

- Four-digit, 7-segment LED monitor

- Displays various monitor data as well as alarm codes. (By
factory default, the input power (%) is displayed.)

d

Indicators

- The unit of the monitored data on the LED monitor is
indicated with a bar "

" shown at the upper part of the

LCD below the applicable unit.

If there is an upper order page to the screen shown on the
LCD, an UP arrow "Ÿ" appears at the upper right of the
LCD monitor; if there is a lower order page, a DOWN
arrow "ź" appears at the lower right of the LCD monitor.

O

LCD monitor

- Max. 13 characters by 5 lines

- Displays various data such as the running status, function
code and data. Because an operation guide scrolls in the
lower line of the LCD, the user can operate easily while
referring to the guide, even if he/she is not familiar with
the operation method of the keypad. (A bar graph is
displayed by factory default.)

f

RUN LED

- Lit upon short circuit across RUN and CM at the terminal
block, or upon activation of the RUN bit in the link.

- Unlit upon open circuit across RUN and CM, or upon
deactivation of the RUN bit in the link.

g

Operation keys

- Used to switch screens or change data.

Table 5.1-1 lists major functions of the operation keys.

Table 5.1-1 Functions of Operation Keys

Operation keys Used to:

㻼㻾㻳

Go to the menu screen or go to the initial screen of the Running or Alarm mode.

㻲㼁㻺㻯
㻰㻭㼀㻭

Switch the LED monitor or settle the function code data.

䌻 䌼

䠈

Change data, move the cursor up or down (for selection), or scroll the screen.

㻿㻴㻵㻲㼀

䍿

Move the cursor among digits during data change or jump to the next function code
block (when pressed together with the UP/DOWN key).

㻾㻱㻿㻱㼀

Cancel data halfway through modification and move the display screen. When there is
an alarm, the key functions as an alarm reset key only on the initial screen of the
Alarm mode.

䌻 䌼

䠈

㻿㼀㻻㻼

㻗

Change the F00 setting (Data protection).



㻾㻱㻿㻱㼀㻌

㻲㼁㻺㻯㻌
㻰㻭㼀㻭㻌

㻿㼀㻻㻼

㻌

㻼㻾㻳㻌

㻌

㹔
㸲㸯㸶 㸲㸲㸮 㸲㸴㸰
㹆㹸

㸳㸵㸴㸮㸴㸱



  ڸ ڸ

㻾㼁㻺㻌㻌㻌㻿㼀㻻㻼㻌㻌㻌㻌㻌

㻌

㻌 䠤䡖㻌㻌㻭㻌㻌㼂㻌㻌䠂㻌㻌㻌㻌㻌㻌㻌㻌㻌

㼗㼃㻌 㻌 㻌

㻌

 ۂ ۂ ۂ ۂۂ

RUN

㻿㻴㻵㻲㼀㻌

㻪㻪

㻌

㻌

䌻

䌼

㻌

5-2

5.2 Operation and Display Screen

5.2.1 Screen immediately after auxiliary control power supply is turned on

If the power is turned ON only with the control power
auxiliary input terminals (R0 and T0) without turning
the main circuit power supply ON, the 7-segment LED
monitor shows "8888" and the LCD monitor shows
"READY." This means that the main circuit is not
charged so that the converter waits for the main power
to turn ON.

To change function codes, press the PRG key to switch
to the Programming menu.




5($'<

㸶㸶㸶㸶

э

'$7$6(77,1*
'$7$&+(&.
2350175
,2&+(&.

㸶㸶㸶㸶

35*

5(6(7

Initial screen Menu screen

5-3

5.2.2 Screen immediately after the main circuit power supply is turned on

(1) Initial Screen

(2) Operation Screen

F05=0 (GUIDANC)

No run command With run command

(waiting for voltage boost)

During running During running
(during power running) (during regeneration)

"100%" indicates the incoming power.

F05=1 (GRAPH 1)

Bar graph screen 1

F05=2 (GRAPH 2) (* Factory default)

Bar graph screen 2

(1) For one or two seconds immediately after the main

circuit power is turned ON, the initial screen
shown at the left is displayed on the LCD monitor.
The 7-segment LED monitor changes in the order
of "8888o3333o2222o1111" and switches to the
operation screen shown at (2) when the converter
is ready to run.

(2) The operation screen has two types: the screen

where the converter running status and operation
guidance are displayed, and the screen where the
running status is displayed graphically with bar
graphs.
To switch between those screens, use function code
F05 "LCD Monitor" (keypad indication "LCD
MNTR").
(The factory default is bar graph screen 2.)

Switching operation (Operation procedure from the
operation screen)

a. Press the PRG key to go to the program menu screen.

b. In the program menu, use ȁ and V keys to move the

cursor to "1: DATA SET." Press the FUNC/DATA
key to go to the function code directory selection
screen.

c. In the function code directory selection screen, use

the ȁ and V keys to move the cursor to "F CODE."
Press the FUNC/DATA or >> key to go to the
function code selection screen.

d. In the function code selection screen, use the ȁ and

V keys to move the cursor to F05 "LCD MNTR."

Press the FUNC/DATA key to go to the function
code setting screen.

e. In the function code setting screen, use the ȁ and V

keys to select the desired screen and press the

FUNC/DATA key to determine it. After determining,

you will return to the function code selection screen.

f. In the function code selection screen, press the PRG

key to go to the operation screen. Or, press the

RESET key three times to go to the directory

structure screen, to the menu screen and to the
operation screen.

PWM
CONVERTER

RHC C-TYPE

㸮㸮㸮㸮

㸶㸶㸶㸶Ѝ㸮㸮㸮㸮

5($'<ĺ&203/(7(

STOP

PRGэPRG MENU
F/DэLED SHIFT

㸮

RUN

PRGэPRG MENU
F/D

э

LED SHIFT

㸮

DRV

PRGэPRG MENU
F/DэLED SHIFT

㸯㸮㸮

REG

PRGэPRG MENU
F/D

э

LED SHIFT

㸯㸮㸮

ĸInput power

ĸEffective input current

%
PWR 100 200
%
Iin 100 200

㸮

ĸInput voltage fluctuation

ĸInput frequency fluctuation

V

418 440 462
Hz
57 60 63

㸮

Input power
Full scale: 200% of rated capacity of converter

Effective input current
Full scale: 200% of rated current of converter

The real time input voltage is displayed with a black ba

r

indicator  (min., average and max. values).

The real time input frequency is displayed with a black ba

r

indicator  (min., average and max. values).

5-4

5.2.3 Switching LED monitor screens

Press the FUNC/DATA key when the operation screen is displayed, to switch the data displayed on the LED monitor.

Each time the FUNC/DATA key is pressed, the data displayed on the LED monitor changes.

The data displayed on the LED monitor immediately after the power is turned on follows the setting of function code
F04 "LED Monitor (Display Selection)."

Table 5.2-1 Monitor Display

F04 LED monitor unit Resolution

0 Input power 1 % 1

1 Input power 2 kW

0.1 to 999.9: 0.1
1000 to : 1

2

Effective input
current

A

0.01 to 99.99 : 0.01

100.0 to 999.9 : 0.1
1000 to : 1

3

Effective input
voltage

V1

4 DC link voltage V 1

5

Power supply
frequency

Hz 0.1

Forward scroll

Reverse scroll

FUNC/DATA
FUNC/DATA + ҍ

FUNC/DATA + Ҏ

5-5

5.2.4 Switching LCD screens

The types of LCD screens of the keypad are as follows.

You can operate easily according to the following program menu displayed on the screen.

Program menu Function

c DATA SET You can check data or select a function code to be changed.

d DATA CHECK A data list is displayed.

O OPR MNTR You can monitor the current operation status of the converter.

f I/O CHECK The state of the converter and I/O terminals is displayed.

g MAINTENANC Data concerning startup of the converter or that concerning trouble occurrence or

maintenance and inspection are displayed.

h LOAD FCTR The load factor is measured.

i ALM INF The operation data immediately before occurrence of the latest alarm is displayed.

j ALM CAUSE A history of 10 past alarms and data about multiple alarms currently occurring are

displayed.

k DATA COPY A set of function codes of the converter can be saved and copied to multiple converters.

䐦

䐤

䐟

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䍿㻗㻼㻾㻳䍿㻗㻼㻾㻳

㻲㼁㻺㻯
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㻾㻱㻿㻱㼀

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㻰㻭㼀㻭

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㻝㻕

㻲㼁㻺㻯
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㻾㻱㻿㻱㼀

䐠

䐡

䐢

䐣

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㻻㼜㼑㼞㼍㼠㼕㼛㼚㻌
㼙㼛㼐㼑㻌㼛㼚㼘㼥

䐧

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㼍㼚㼐㻌㻔㻥㻕

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䌻㻘䌼㻦㻌㻿㼑㼘㼑㼏㼠㼟㻌㼍㻌
㼜㼞㼛㼏㼑㼟㼟
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䚷䠫䠤䠍䠌

㻭㼘㼍㼞㼙㻌㼔㼕㼟㼠㼛㼞㼥

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䚷䠫䠤䠍䠌

㻸㼛㼍㼐㻌㼒㼍㼏㼠㼛㼞㻌
㼙㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠
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㻯㻴㻱㻯㻷㻌㻰㻭㼀㻭

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䍿㻗䌻㻛䌼㻦㻌㻳㼞㼛㼡㼜㻌㼖㼡㼙㼜

䚷䠫䠤䠍䠌

㻿㻱㼀㻌㻰㻭㼀㻭

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㼟㼜㼑㼏㼕㼍㼘㻌㼢㼍㼘㼡㼑

䍿㻦㻌㻹㼛㼢㼑㼟㻌㼏㼡㼞㼟㼛㼞

䚷䠫䠤䠍䠌

㻯㻭㼁㻿㻱
䌻㻘䌼㻦㻌㻿㼏㼞㼛㼘㼘㼟㻌㼛㼢㼑㼞㻌
㼟㼏㼞㼑㼑㼚

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㻝㻜㻕㻌㻭㼘㼍㼞㼙㻌㼔㼕㼟㼠㼛㼞㼥㻌㻟

㻥㻕㻌㻭㼘㼍㼞㼙㻌㼔㼕㼟㼠㼛㼞㼥㻌㻞

㻤㻕㻌㻹㼡㼘㼠㼕㼜㼘㼑㻌㼍㼘㼍㼞㼙㼟

㻣㻕㻌㻭㼘㼍㼞㼙㻌㼔㼕㼟㼠㼛㼞㼥㻌㻝

㻢㻕㻌㻰㻵㻻㻭㻌㼕㼚㼜㼡㼠㻌㼟㼠㼍㼠㼡㼟

㻡㻕㻌㻻㼜㼑㼞㼍㼠㼕㼛㼚㻌㼟㼠㼍㼠㼡㼟

㻠㻕㻌㻵㻛㻻㻌㼟㼕㼓㼚㼍㼘㼟

㻟㻕㻌㻯㼛㼙㼙㼡㼚㼕㼏㼍㼠㼕㼛㼚㻌㼟㼠㼍㼠㼡㼟

㻞㻕㻌㻭㼏㼠㼕㼛㼚㻌㼟㼠㼍㼠㼡㼟

㻭㻸㻭㻾㻹㻌㻵㻺㻲㻻

㻝㻕㻌㻻㼜㼑㼞㼍㼠㼕㼛㼚㻌㼟㼠㼍㼠㼡㼟

䌼䌻

䚷䠫䠤䠍䠌

㻡㻕㻌㻰㻵㻻㻭㻌㼕㼚㼜㼡㼠㻌㼟㼠㼍㼠㼡㼟

㻠㻕㻌㻭㻵㻻㻌㻵㼚㼜㼡㼠㻌㼟㼠㼍㼠㼡㼟

㻟㻕㻌㻻㼜㼠㼕㼛㼚㻌㼠㼑㼞㼙㼕㼚㼍㼘㻌㼟㼠㼍㼠㼡㼟

㻞㻕㻌㻻㼜㼑㼞㼍㼠㼕㼛㼚㻌㼟㼠㼍㼠㼡㼟

㻵㻛㻻㻌㻯㻴㻱㻯㻷

㻝㻕㻌㻵㼚㼜㼡㼠㻌㼟㼕㼓㼚㼍㼘㼟

䌼䌻

㻢㻕㻌㻾㻻㻹㻌㼢㼑㼞㼟㼕㼛㼚㻌㻞

䚷䠫䠤䠍䠌

㻡㻕㻌㻾㻻㻹㻌㼢㼑㼞㼟㼕㼛㼚㻌㻝

㻠㻕㻌㻯㼛㼙㼙㼡㼚㼕㼏㼍㼠㼕㼛㼚㻌㼟㼠㼍㼠㼡㼟

㻟㻕㻌㻻㼜㼑㼞㼍㼠㼕㼛㼚㻌㼟㼠㼍㼠㼡㼟㻌㻟

㻞㻕㻌㻻㼜㼑㼞㼍㼠㼕㼛㼚㻌㼟㼠㼍㼠㼡㼟㻌㻞

㻹㻭㻵㻺㼀㻱㻺㻭㻺㻯㻱㻌㻵㻺㻲㻻

㻝㻕㻌㻻㼜㼑㼞㼍㼠㼕㼛㼚㻌㼟㼠㼍㼠㼡㼟㻌㻝

䌼䌻

㻟㻕㻌㻻㼜㼑㼞㼍㼠㼕㼛㼚㻌㼟㼠㼍㼠㼑㻌㻟

㻞㻕㻌㻻㼜㼑㼞㼍㼠㼕㼛㼚㻌㼟㼠㼍㼠㼑㻌㻞

䚷䠫䠤䠍䠌

㻹㻻㻺㻵㼀㻻㻾

㻝㻕㻌㻻㼜㼑㼞㼍㼠㼕㼛㼚㻌㼟㼠㼍㼠㼑㻌㻝

䌼䌻

䚷䠫䠤䠍䠌

㻲㼡㼚㼏㼠㼕㼛㼚㻌㼙㼑㼚㼡

䌻㻘䌼㻦㻌㻿㼑㼘㼑㼏㼠㼟㻌㼍㻌㼏㼛㼐㼑

䍿

㻦㻌㻿㼑㼘㼑㼏㼠㼟㻌㼍㻌㼐㼕㼞㼑㼏㼠㼛㼞㼥

䍿㻗䌻㻛䌼

㻦㻌㻳㼞㼛㼡㼜㻌㼖㼡㼙㼜

䐥

㻟㻕㻌㻮㼍㼞㻌㼓㼞㼍㼜㼔㻌㻞

㻲㼡㼚㼏㻙

㼠㼕㼛㼚

䠌

㻞㻕㻌㻮㼍㼞㻌㼓㼞㼍㼜㼔㻌㻝

㻻㼜㼑㼞㼍㼠㼕㼛㼚㻌㼙㼛㼐㼑

㻝㻕㻌㻻㼜㼑㼞㼍㼠㼕㼛㼚㻌㼓㼡㼕㼐㼑

㻼㻾㻳

㻼㻾㻳

5-6

5.2.5 Configuring function code data

(1) Transition of Data Setting Screen

э

1. DATA SET

2. DATA CHECK

3. OPR MNTR

4. I/O CHECK

㸮

F00 DATA PRTC

F01 HARM FILTR
F02 RESTART
F03 IR SELECT

Ҏ

F/D

RESET

F

CODE

E

CODE

H

CODE

U

CODE

Ҏ

F00 DATA PRTC

0:CHG OK

0㹼1

F00 DATA PRTC

F01 HARM FILTR

F02 RESTART
F03 IR SELECT

Ҏ

F06 LANGUAGE
F07 CONTRAST
F08 CAREER FRQ

E01 X1 FUNC

Ҏ

ӑ

or

F/D

RESET

F/D

㹬

F

CODE

E

CODE

H

CODE

U

CODE

F

CODE

E

CODE

H

CODE

U

CODE

Operation screen

Menu screen

Function code selection screen

Function code setting
screen

Parent directory screen

F/D

PRG

F01 HARM FILTR

F02 RESTART
F03 IR SELECT
F04 LED MNTR

V
418 440 462
Hz
57 60 63

㸮

Press the PRG key on the operation screen to go to the menu screen.
Using the ȁ and V keys, move the arrow at the left end in the men

u

screen to select "1. DATA SET" and press the FUNC/DATA key to
display the function code parent directory screen. Using the ȁ and

V

keys, select the parent directory of the desired function code and use the

FUNC/DATA key or >> key to go to the function code selection screen.

On the function code selection screen, use the ȁ and V keys to change the
desired function code.

On the function code setting screen, use the ȁ and V keys to enter a value,
and press the FUNC/DATA key to determine it.

5-7

(2) Data Setting Method

Press and hold the ȁ and V key or select the desired digit with the cursor and change it directly to change data.

Select the function code and press the FUNC/DATA key to go to the data setting screen.

On the data setting screen, press ȁ and V keys to increase or decrease the least significant digit displayed on the
LCD. Press and hold the ȁ and V keys to move the active digit to the left to change at a higher speed. Or press the

>> key to select the desired digit and change the data directly. After data is changed, the previous data is

simultaneously displayed. Use the old data as a reference. After the desired data is displayed, press the FUNC/DATA
key to save the new data. Or press the RESET key to cancel data change and return to the function code selection
screen.

ӑ

ҍ

ӑ

H09 485 ANS

0.01s

H09 485 ANS

0.01s

H09 485 ANS

0.01s

H09 485 ANS

0.01s

0.02s

H09 485 ANS

0.01s

0.03s

H09 485 ANS

0.01s

0.50s

H09 485 ANS

0.01s

0.60s

H09 485 ANS

0.01s

0.60s

H09 485 ANS

0.01s

ӑ

ҍ

ҍ

H09 485 ANS

0.01s

0.70s

ҍ

Press and hold
five seconds.

ReleasHȁNH\

ӑ

H09 485 ANS

0.01s

H09 485 ANS

0.01s

H09 485 ANS

0.01s

1.00s

ҍ

The active digit moves to the left and
the digits in the lower order become
"0."

Example of data

change 1

Example of data

change 2

ҍ

5-8

The new data of the function code is not reflected on converter operation until the FUNC/DATA key is pressed to
save it; there is no change in the action while the data is changed with ȁ and V keys. The data may not be changed if
the data is protected or data change is prohibited during operation. The reason why the data is not changed includes
the following.

Display Cause of prohibition of change Resetting method

DATA PRTCTD Data is protected with function code F00. Change function code F00 to "0."

CNV RUNNING A function code that cannot be changed during operation

of the converter is being changed.

Stop converter operation.

Example of data

change 3

ҍ

F04 LED MNTR

0:PWR %

0㹼5

F04 LED MNTR

0:PWR %
1:PWR kW

0㹼5

ҍ

F04 LED MNTR

0:PWR %
2:INPUT I

0㹼5

ҍ

F04 LED MNTR

0:PWR %
5:FREQ

0㹼5

Ҏ

Q

F04 LED MNTR

0:PWR %
4:DC LNKV

0㹼5

E14 I/O OP/CL

OP

CL

RUN X1 Y1 2 3 5 30

E14 I/O OP/CL

OP
CL

RUN X1 Y1 2 3 5 30

E14 I/O OP/CL

OP
CL

RUN X1 Y1 2 3 5 30

E14 I/O OP/CL

OP
CL
RUN X1 Y1 2 3 5 30

E14 I/O OP/CL

OP
CL

RUN X1 Y1 2 3 5 30

E15 RHC-OL-WAR

E16 FAN STOP
E17 I-LIM HYS
E18 AO1 FUNC

ӑ

ӑ

ҍ

Ҏ

ӑ

㸱

E14 I/O OP/CL

OP
CL

RUN X1 Y1 2 3 5 30

ӑ

F/D

The blinking cursor moves
among active options only.

Press the F/D key to
validate data entry.

ȁ or V key: movement in one

direction only

㸰

• Example of data change 4 is for I/O
function setting (normally
open/closed).
The function code cannot be
changed during operation.

Example of data

change 4

5-9

5.2.6 Checking function code settings

1. DATA SET

э

2. DATA CHECK

3. OPT MNTR

4. I/O CHECK

㸮

F

CODE

E CODE

H

CODE

U

CODE

㸮

Operation screen

Menu screen

PRG

㻲㼁㻺㻯
㻰㻭㼀㻭

F00 0: CHG OK

F01 0: CONNECT
F02

*

1: ACTIVE

F03 0: CT

㸮

F00 DATA PRTC

0: CHG OK

0㹼1

㸮

㻲㼁㻺㻯

㻰㻭㼀㻭

Function code
selection screen

Function code
setting screen

㻲㼁㻺㻯
㻰㻭㼀㻭

V

418 440 462
Hz
57 60 63

㸮

Press the PRG key on the operation screen to go to the
menu screen. Using ȁ and V keys, move the arrow at the
left end in the menu screen to select "2. DATA CHECK"
and press the FUNC/DATA key to display the functio

n

code and the setting on the LCD.

After the function code and data are displayed on the
screen, press ȁ and V keys to select the desired functio

n

code to be checked. The method for selecting the
function code is similar to Section 5.2.5 "Function Code
Setting."

Select a function code, change the data and press the

FUNC/DATA key to change data as if the operation is

made on the function code setting screen.

5-10

5.2.7 Monitoring the running status

1. DATA SET

2. DATA CHECK

э

3. OPR MNTR

4. I/O CHECK

㸮

PWR = xxx.x kW
Iin = xxxx.x A
Vin = xxx V
f = xxx.x Hz

㸮

f = xx.xHz
fmax = xx.xHz
fmin = xx.xHz
3ı= xx.xHz

㸮

V = xxx V
Vmax = xxx V
Vmin = xxx V

㸮

䌼

Running status monitor

screen 2
(Power supply frequency
fluctuation)

Running status monitor
screen 3
(Input voltage fluctuation)

㻲㼁㻺㻯
㻰㻭㼀㻭

㻼㻾㻳

䌼

Running screen

Menu screen

Running status monitor
screen 1

V

418 440 462
Hz
57 60 63

㸮

Press the PRG key on the running screen to go to the menu screen.
Using ȁ and V keys, move the arrow at the left end in the menu
screen to select "3. OPR MNTR" and press the FUNC/DATA ke

y

to display the current state of the converter on the LCD.

The running status monitor includes three screens. Use ȁ and

V

keys to switch between screens and check the operation state.

Input power (in kW)
Effective input current (in A)
Effective input voltage (in V)
Power supply frequency (in Hz)

Average power supply frequency

Max. power supply frequency
(Maximum sampling value is displayed)

Min. power supply frequency
(Minimum sampling value is displayed.)

Standard deviation of power supply frequency x 3 times (3 V)
(3 V of normal distribution of sampled data)

o The quality of the power supply can be judged from the value

of 3 V. (Maximum value in each hour)

Note: The displayed maximum value may be a little larger than
the actual value due to calculation error during power-on.

Average input voltage

Max. input voltage
(Maximum sampling value is displayed.)

Min. input voltage
(Minimum sampling value is displayed.)

Note: The displayed maximum value may be a little larger than
the actual value due to calculation error during power-on.

5-11

5.2.8 Checking I/O signal states

Press the PRG key on the operation screen to switch to the menu screen. Using ȁ and V keys at the left end in the
menu screen, select "4. I/O CHECK" and press the FUNC/DATA key to display the state of the converter and
optional equipment on the LCD.

Some screens are skipped if the optional equipment is not installed. The I/O check screen includes five screens. Use

ȁ and V keys to switch between screens and check data.

1. DATA SET

2. DATA CHECK

3. OPR MNTR

э

4. I/O CHECK

㸮

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DIOA : OPC-VG7-DIO
AIO : OPC-VG7-AIO
TLINK : OPC-VG7-TL
SI : OPC-VG7-SI (SIR)
CCL : OPC-VG7-CCL
SX : OPC-VG7-SX
FIELD : -­TRACE : OPC-RHC-TR

Operation
screen

Menu screen

V

418 440 462

Hz

57 60 63

㸮

I/O signal screen

I/O signal (terminal)
: Signal OFF, : Signal ON

Analog output signal (A01)

Operation state screen

Operation state
: Signal OFF, : Signal ON

RUN: Running, INT: Converter shutoff (Inversion o

f

logic during operation)

DRV: During power running, REG: During regeneration

N

UV: DC link establishment, ALM: Batch failure

Optional equipment installation data screen

Optional equipment data
: Signal OFF, : Signal ON

Installed optional equipment is displayed.

* This screen is displayed if optional OPC-VG7-AIO is

installed.

AIO option I/O data screen

Ai3 and Ai4 are invalid.
AIO output state 1 (Ao4)
AIO output state 2 (Ao5)

* This screen is displayed if optional OPC-VG7-DIO is

installed.

DIOA option I/O data screen

DIOA output state
: Signal OFF, : Signal ON

5-12

5.2.9 Displaying maintenance information

1. DATA SET

2. DATA CHECK

3. OPR MNTR

4. I/O CHECK

㸮

㻼㻾㻳

TIME = xxxxx h
EDC = xxx V
TMPI = xxx°C
TMPF = xxx°C

㸮

Imax = xxx.xx A
Pmax = xxxx.x kW

㸮

TCAP = xxxxxh

(61000h)

TFAN = xxxxxh

(25000h)

㸮

э

5. MAINTENANC

䌼

䌼

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㻰㻭㼀㻭

䌼

Operation screen

Menu screen

Action state monitor screen 1

Action state monitor screen 2

Action state monitor screen 3

㸮

57 60 63

418 440 462

V

Hz

Press the PRG key on the operation screen to go to the
menu screen. Using ȁ and V keys, move the arrow at the
left end in the menu screen to select "5. MAINTENANC"
and press the FUNC/DATA key to display data to be
checked during startup of the converter or during
maintenance and inspection, on the LCD.

The maintenance data screen includes six screens.
Using ȁ and V keys, switch between screens and chec

k

data.

Cumulative run hours (The cumulative power-up hours are
displayed.)

Detected DC link voltage

Max. temperature inside converter (Maximum temperature
in hour)

Max. temperature of heat sink (Maximum temperature in
hour)

*Cumulative run hours : 1 is 10 run hours

(ex: 1000h is 10000 run hours)

Effective max. input current (Maximum value in hour)

Max. input power (Maximum value in hour)

Cumulative life of Pt board capacitor

Pt board capacitor life judgment level (Fixed)

Cooling fan run hours

Cooling fan life judgment level (Fixed)

5-13

NRK = xxxxx
NRR = xxxxx xx
NRO = xxxxx xx
NRL = xxxxx xx

㸮

MAIN = H1xxxx
PWR = H2xxxx
KP = K xxxx

㸮

OP1 = Q1xxxx
OP2 = Q1xxxx

㸮

䌼

䌼

Communication state
monitor screen

ROM version
check screen 1

ROM version
check screen 2

Communication retry cycles: Keypad

Communication retry cycles, latest error code: RS-485

Communication retry cycles, latest error code: TL (CCL)/SX

Communication retry cycles, latest error code: SI option

Latest error code

Communication error code displayed according to communication
state in response to inquiry from link

For the details of error codes, refer to Section 12.4 "Data Format
List".

ROM version: Main control CPU (MAIN)

ROM version: Power factor control CPU (PWR)

ROM version: Keypad

"-----" upon error of main control CPU or power factor control CPU

ROM version: 8-bit BUS option CPU (OP1)

ROM version: 8-bit BUS option CPU (OP2)

"-----" if CPU is not installed.

5-14

5.2.10 Measuring load factor

1. DATA SET

2. DATA CHECK

3. OPR MNTR

4. I/O CHECK

㸮

㻼㻾㻳

5. MAINTENANC

э

6.LOAD FCTR

T = 3600s
Imax = 0.00A
Iave = 0.00A
Pave = 0%

㸮

㻲㼁㻺㻯
㻰㻭㼀㻭

T=600s
Imax = 0.00A
Iave = 0.00A
Pave = 0%

㸮

T=120s
Imax = 0.00A
Iave = 0.00A
Pave = 0%

㸮

T = 3600s
Imax = 56.40A
Iave = 23.50A
Pave = 10%

㸮

㻲㼁㻺㻯
㻰㻭㼀㻭

Use ȁ, V or >> to change
measuring time.
Measuring condition setting

Measurement start

The displayed measuring
time indicates the
remaining measuring time.
When the measuring time is
reduced to zero,
measurement is finished.

Load factor measuring time
Max. input current
Average input current
Average power consumption
(Rated converter capacity:
100%)

Running screen

Menu screen

Load factor measurement screen

V

418 440 462
Hz

57 60 63

㸮

Press the PRG key on the operation screen to go to the
menu screen. Using ȁ and V keys, move the arrow a

t

the left end in the menu screen to select "6. LOAD
FCTR" and press the FUNC/DATA key to display the
load factor measurement screen on the LCD.

On the load factor measurement screen, you can ente

r

the maximum current, average current and average

b

raking power in the specified time.

The cursor is located at the measuring time. Use the

ȁ

and V key to change the digit at which the cursor blinks.
Use the >> key to change the digit where the cursor is
located.

Press the FUNC/DATA key to start to measure the loa

d

factor. The displayed measuring time decreases. Whe

n

the time is reduced to "0," measurement is finished.
Press the FUNC/DATA key during measurement to
interrupt measurement and display the value measure

d

up to the timing.

After measurement is finished, the measuring time
returns to the initial value, and the measured load ratio
values are displayed.

5-15

5.2.11 Displaying alarm information

1. DATA SET

2. DATA CHECK

3. OPR MNTR

4. I/O CHECK

  㸮㸮

5. MAINTENANC

6.LOAD FCTR

э

7.ALM INF

㸿㹍㹍㹁

㸿㹍㹍㹁

TIME = xxxxxh
EDC = xxxV
TMPI = xxxx°C
TMPF = xxxx°C

PWR = xxx.x kW
Iin = xx.xx A
Vin = xxx.x V
f = xxx.x Hz

㸿㸿㹍㹁

NRK = xxxxx
NRR = xxxxx
NRO = xxxxx
NRL = xxxxx

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Operation screen

Menu screen

Screen for checking operation state at alarm

Screen for checking action state at alarm

Screen for checking communication state at alarm

Screen for checking I/O signal at alarm

V

418 440 462
Hz
57 60 63

  㸮㸮

Press the PRG key on the operation screen to go to the
menu screen. Using ȁ and V keys, select "7. ALM INF"
and press the FUNC/DATA key to display the operatio

n

data immediately before the latest alarm, on the LCD.

The alarm data screen includes 10 screens. Using ȁ and

V

keys, switch between screens to check data.

Use alarm data to display the data having been effective
immediately before the alarm.

Input power at alarm
Effective input current at alarm
Effective input voltage at alarm
Power supply frequency at alarm

Cumulative run hours at alarm
Detected link voltage at alarm
Internal temperature of converter at alarm
Heat sink temperature at alarm

Communication retry cycles at alarm: Keypad
Communication retry cycles at alarm: RS-485
Communication retry cycles at alarm: TL (CCL)/SX
Communication retry cycles at alarm: SI option

Input signal at alarm (Terminal block/communication)
: Signal OFF, : Signal ON

5-16

㸿㸿㹍㹁

㸿㸿㹍㹁

㸿㸿㹍㹁

0/1=xxx xxx

-1=xxx xxx

-2=xxx xxx

-3=xxx xxx

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5=xxx
4=xxx
3=xxx
2=xxx

㸿㸿㹍㹁

㸿㸿㹍㹁

-4=xxx xxx

-5=xxx xxx

-6=xxx xxx

-7=xxx xxx

-8=xxx xxx

-9=xxx xxx

-10=xxx xxx

䌼

䌼

䌼

䌼

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䌼

Screen for checking operation state at alarm

* This screen is displayed if optional OPC-VG7-DIO is installed.
Screen for checking DIOA option output signal at alarm

Alarm history check screen 1

Multiple alarm check screen

Alarm history check screen 2

Alarm history check screen 3

Alarm code
Frequency

Operation state at alarm
: Signal OFF, : Signal ON

Output signal at alarm
: Signal OFF, : Signal ON

Latest alarm history
Alarm history (-1 to -3)
(Updated each time an alarm occurs. If the new alarm
is the same as an earlier one, the frequency increases

b

y one.)

Multiple alarms
(Current alarms are displayed according to the
number of alarms.)

Alarm history (-4 to -7)
(Updated each time an alarm occurs. If the new alarm
is the same as an earlier one, the frequency increases

b

y one.)

Alarm history (-8 to -10)
(Updated each time an alarm occurs. If the new alarm
is the same as an earlier one, the frequency increases

b

y one.)

5-17

5.2.12 Displaying alarm history and cause

5=xxx
4=xxx
3=xxx
2=xxx

㸮

0/1=xxx xxx

-1=xxx xxx

-2=xxx xxx

-3=xxx xxx

-4=xxx xxx

-5=xxx xxx

-6=xxx xxx

-7=xxx xxx

-8=xxx xxx

-9=xxx xxx

-10=xxx xxx

㸿㸿㹍㹁

xxxxxxxxxxxxx
xxxxxxxxxxxxx
xxxxxxxxxxxxx
xxxxxxxxxxxxx

5. MAINTENANC

6.LOAD FCTR

7.ALM INF

э

8.ALM CAUSE

㸮

0/1=xxx xxx

-1=xxx xxx

-2=xxx xxx

-3=xxx xxx

㸮

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㻰㻭㼀㻭

䌼

Latest alarm

Alarm history

If the data size of selected

alarms is too large to

overflow the screen, use ȁ

and V keys to scroll data.

Operation screen

Menu screen

Alarm cause screen

0/1= OH1 1

-1= LV 15

-2= OH1 3

-3= LV 1

Latest alarm

OH1 Continuous one time

Another previous alarm

LV Continuous 15 times
Another alarm having occurred
before previous one

OH1 Continuous three times
Another alarm having occurred
before two previous ones

LV One time

Display
example

䂻

㻲㼁㻺㻯

㻰㻭㼀㻭

V

418 440 462
Hz

57 60 63

㸮

Press the PRG key on the operation screen to go to the
menu screen. Using ȁ and V keys, move the arrow a

t

the left end in the menu screen to select "8. ALM
CAUSE" and press the FUNC/DATA key to displa

y

the alarm history on the LCD.

Using ȁ and V keys, select the desired alarm in the
displayed alarm history, and press the FUNC/DAT

A

key to display troubleshooting data of the selecte

d

alarm.

Multiple alarms
(Current alarms are displayed according to the numbe

r

of alarms.)

Latest alarm history
Alarm history (-1 to -3)
(Updated each time an alarm occurs. If the new alar

m

is the same as an earlier one, the frequency increases

b

y one.)

Alarm history (-4 to -7)
(Updated each time an alarm occurs. If the new alar

m

is the same as an earlier one, the frequency increases

b

y one.)

Alarm history (-8 to -10)
(Updated each time an alarm occurs. If the new alar

m

is the same as an earlier one, the frequency increases

b

y one.)

Description of the alarm selected in the [LED] alar

m

history is displayed.

The cause of the alarm selected in the [LCD] alar

m

history is displayed.

5-18

5.2.13 Copying data

Follow the procedure below to copy data.

c Load the function code data on the keypad.

d Remove the keypad.

e Install the keypad to another converter.

f Save the function code data to the converter.

Using the verification function, you can verify the data recorded in the keypad against that recorded in the converter
and pick up changes.

6. LOAD FCTR

7. ALM INF

8. ALM CAUSE

э

9. DATA COPY

<COPY; KP-CNV>

----- 30-4
READ

ҍ

<COPY; KP-CNV>

----- 30-4
READ

20% 13/64

<COPY; KP-CNV>

30-4 30-4

READ

<COPY; KP-CNV>

30-4 30-4

WRITE

<COPY; KP-CNV>

30-4 30-4

WRITE

80% 51/64

<COPY; KP-CNV>

30-4 30-4

READ

COMPLETE

100% 64/64

Reading only is
allowed if
EEPROM data is
invalid.

ҍ

ҍ

<COPY; KP-CNV>

30-4 30-4

WRITE

<COPY; KP-CNV>

30-4 = 30-4

VERIFY

<COPY; KP-CNV>

30-4 = 30-4

VERIFY

COMPLETE

100% 64/64

<COPY; KP-CNV>

30-4 30-4

WRITE

COMPLETE

100% 64/64

<COPY; KP-CNV>

30-4 = 30-4

VERIFY

80% 51/64

㻲㼁㻺㻯
㻰㻭㼀㻭

㻲㼁㻺㻯
㻰㻭㼀㻭

㻲㼁㻺㻯
㻰㻭㼀㻭

㻲㼁㻺㻯
㻰㻭㼀㻭

㻲㼁㻺㻯
㻰㻭㼀㻭

㻼㻾㻳

ҍ

V

418 440 462
Hz

57 60 63

  㸮㸮

  㸮㸮

  㸮㸮

㹁㹍㹎㹗

㹁㹍㹎㹗

  㸮㸮

㹁㹍㹎㹗

㹁㹍㹎㹗

  㸮㸮

  㸮㸮

㹁㹍㹎㹗

  㸮㸮

  㸮㸮

Press the PRG key on the operation screen to go to the men

u

screen. Using ȁ and V keys, move the arrow at the left end i

n

the menu screen to move the cursor to "9. DATA COPY" an

d

p

ress the FUNC/DATA key to display the loading mode of dat

a

copy on the LCD screen.

To change to loading, saving or verifying, use ȁ and V keys o

n

the loading mode screen.

5-19

Error handling of data copy function

1) Prohibition of change during operation

If data is saved during converter operation or if the
converter is started during saving operation, an
error occurs and the screen shows as shown on the
right.

Stop the converter and press RESET, then repeat
saving.

2) Memory error

If data is saved though data has not been saved in
the data loading mode to the data memory of the
keypad (empty data), or if the converter type
(capacity, model, voltage class, etc.) specified in
the data having been loaded with data loading
function is different from the type of the converter
to which data is being saved, an error occurs and
the screen shows as shown on the right.

3) Verify error

If difference from converter data is found during
data verification in the data kept in the memory of
the keypad, the function code number is displayed
and an error is displayed as shown on the right,
while the data check function is temporarily
stopped.

To continue the data check function and search for
other differences, press FUNC/DATA; to terminate
the data check function to do another process, press

RESET.

4) Data protection

If data is protected using F00, the screen shows as
shown on the right. To continue saving, change the
F00 setting to enable data change.

<COPY; KP-CNV>

30-2 30-2

WRITE

CNV RUNNING

Saving during operation

<COPY; KP-CNV>

55-4 160-4

WRITE

MEMORY ERROR

EEPROM checksum error
No EEPROM data

Press F/D to continue, or RESET then
PRG to interrupt.

<COPY; KP-CNV>

30-2 㸻 30-2

VERIFY

ERR: F02

3% 2/64

Verify error

<COPY; KP-CNV>

30-2 30-2

WRITE

DATA PRTCTD

1% 1/64

Data protected with F00

Press RESET then PRG to interrupt.

Press RESET then PRG to interrupt.

Press F/D to continue, or RESET then
PRG to interrupt.

6-1

6 Description of Function Codes

6.1 Function Code Tables

Table 6.1-1 Function Codes

Func-

tion

Function codes

Data setting range

Min.

incre-

ment

unit Factory default

Code Name

Fundamental functions

F00 Data protection 0 or 1

1-

0

F01 Harmonics suppressing filter (Connection selection) 0 or 1 0

F02 Restart mode after momentary power failure 0 or 1 0

F03

Switching between MD and LD drive modes
(Current rating switching)

0or 1 0

F04 LED monitor (Item selection) 0 to 5 0

F05 LCD monitor (Item selection) 0 to 2 2

F06 LCD monitor (Language selection) 0 to 2 0

F07 LCD monitor (Contrast adjustment) 0 to 10 5

F08 Carrier frequency 5 to 15 5

Extension terminal functions

E01 Terminal [X1] function 0 to 4

1-

4

E02 Terminal [Y1] function

0 to 14

0
E03 Terminal [Y2] function 2
E04 Terminal [Y3] function 3
E05 Terminal [Y5] function 1
E06 Terminal [Y11] function

Functions for optional
OPC-VG7-DIO

0
E07 Terminal [Y12] function 0
E08 Terminal [Y13] function 0
E09 Terminal [Y14] function 0
E10 Terminal [Y15] function 0
E11 Terminal [Y16] function 0
E12 Terminal [Y17] function 0
E13 Terminal [Y18] function 0
E14 I/O function (Normally open/closed) 0000 to 007F 0000
E15 Converter overload early warning level 50 to 105% 1 % 80
E16 Cooling fan ON/OFF control 0 or 1 1 - 0
E17 Current limiting signal (Hysteresis width) 0 to 30% 1 % 10
E18 Terminal [AO1] function

0 to 10 1 -

1
E19 Terminal [AO4] function

Functions for optional
OPC-VG7-AIO

0
E20 Terminal [AO5] function 0
E21 AO1 gain

-100.00 to 100.00
(times)

0.01

(times)

1.00

E22 AO4 gain

Functions for optional
OPC-VG7-AIO

1.00
E23 AO5 gain 1.00
E24 AO1 bias

-100.0 to 100.0% 0.1 %

0.0

E25 AO4 bias

Functions for optional
OPC-VG7-AIO

0.0
E26 AO5 bias 0.0
E27 AO1-AO5 filter 0.000 to 0.500 s 0.001 s 0.010

High performance functions

H01 Station address (RS-485)

Function for built-in
RS-485

0 to 255 1 - 1

H02 Error processing

Common functions for
communications
options and RS-485

0 to 3 1 - 3

H03 Timer 0.01 to 20.00 s 0.01 s 2.00

H04 Baud rate (RS-485)

Functions for built-in
RS-485

0 to 4

1-

2
H05 Data length (RS-485) 0 or 1 0
H06 Parity check (RS-485) 0 to 2 0
H07 Stop bits (RS-485) 0 or 1 0

H08

Communications link break
time (Timeout) (RS-485)

0.0 to 60.0 s 0.1 s 60.0

H09 Response interval (RS-485) 0.00 to 1.00 s 0.01 s 0.05
H10 Protocol selection (RS-485) 0 to 3 1 - 0

6-2

Func-

tion

Function codes

Data setting range

Min.

incre-

ment

unit Factory default

Code Name

High performance functions

H11 TL transmission format

Function for
OPC-VG7-TL

0or 1

1-

0

H12 Parallel system

Functions for
OPC-VG7-SI,
OPC-VG7-SIR

0or 1 0

H13

Number of slave stations in
parallel system

1 to 5 1

H14 Alarm data deletion 0 or 1 0
H15 Current limiter valve (Driving 1)

0 to 150%

1%

150
H16 Current limiter valve (Driving 2) 150
H17 Current limiter valve (Braking 1)

-150 to 0%

-150
H18 Current limiter valve (Braking 2) -150
H19 Current limiter early warning (Level) -150 to 150% 100
H20 Current limiter early warning (Timer) 0 to 60 s 1 s 0

User application functions

U01 Reserved.

Functions for optional
OPC-VG7-SX

-32768 to 32767

1-

0

U02

SX bus station number
monitor

-32768 to 32767 0

U03 Reserved. 0000 to FFFF 0000
U04 AVR control response -32768 to 32767 0
U05 DC voltage command mode -32768 to 32767 0
U06 Reserved. -32768 to 32767 0
U07 Reserved. -32768 to 32767 0
U08 Reserved. -32768 to 32767 0
U09 Reserved. -32768 to 32767 0
U10 Reserved. -32768 to 32767 0

Note 1: U01 and U06 to U10 are the function codes for particular manufacturers. Do not change the factory defaults.

Note 2: On the keypad, U codes are displayed as USER P1 to USER P10.

Note 3: The data of shaded function codes ( ) can be changed when the converter is running. To change the data of other

function codes, stop the converter.

6-3

6.2 Details of Function Codes

F codes (Fundamental functions)

F00 Data protection

F00 specifies whether to protect function code data
from accidentally getting changed from the keypad.
When the data is protected, the "DATA PRTCTD"
displays on the LCD monitor.

To change the F00 data, press STOP + ȁ or V.

Setting data Data protection

0Allow data change
1 Protect data

F01 Harmonics suppressing filter

(Connection selection)

The factory default is "0."

The converter is usually connected with the filter, so
leave the F01 default as it is.

Setting data Harmonics suppressing filter

0 With filter
1 Without filter

Note: Be sure to connect the filter circuit to the
converter; otherwise, harmonics will be omitted,
damaging other devices.

F02 Restart mode after momentary power failure

F02 specifies the action to be taken by the converter in
the event of a momentary power failure. When F02 = 0,
the converter activates the undervoltage protective
function; when F02 = 1, the converter automatically
restarts after restoration of source voltage.

If the circuit across terminals [RUN] and [CM] is
short-circuited, an undervoltage alarm occurs when the
power is shut down. To avoid this, it is recommended to
set F02 to "1."

Setting data

Restart mode after momentary
power failure

0 Disable
1Enable

F03 Switching between MD and LD drive modes

(Current rating switching)

F03 switches between the MD (CT) and LD (VT) drive
modes. The standard setting is "0" (MD mode). "100%"

means the rated current of the converter unit.

Setting data

Current rating
switching

Overload

0 MD (CT) mode 150%, 1 min.
1 LD (VT) mode 110%, 1 min.

Note: Selecting the LD (VT) mode increases the rated
current of the converter unit. When switching to the LD
(VT) mode, change the external reactor and other
peripheral devices, too.

F04 LED monitor (Item selection)

F04 specifies the running status item (listed below) to
be monitored on the LED monitor. "100%" of input
power 1 means the rated capacity of the converter unit.

Setting data Function Unit

0 Input power 1 % 16 bits
1 Input power 2 kW 16 bits
2 Input current (rms) A 16 bits
3 Input voltage (rms) V 16 bits
4 DC link bus voltage V 10 bits
5 Source frequency Hz

F05 LCD monitor (Item selection)

F05 selects the display contents of the LCD monitor in
the Running mode. For each monitor screen, refer to
Section 5.2.2 "Screen immediately after the main
circuit power supply is turned on."

Setting data LCD monitor (Item selection)

0 Operation guide screen
1 Bar graph of running data 1

(Input power and input current (rms))

2 Bar graph of running data 2

(Source voltage fluctuation and source
frequency fluctuation)

6-4

F06 LCD monitor (Language selection)

F06 selects the language to display on the LCD
monitor.

Setting data Language

0 Japanese
1 English
2Chinese

F07 LCD monitor (Contrast adjustment)

F59 adjusts the contrast of the LCD monitor. Increasing
the setting data increases the contrast and decreasing it
decreases the contrast

Setting data 0, 1 , 2,㺃㺃㺃㺃㺃,8,9,10

Contrast Low High

F08 Carrier frequency

The carrier frequency is fixed at 5 kHz even if any
value is set to F08. When the OPC-VG7-SIR is
mounted, it is fixed at 2.5 kHz.

E codes (Extension terminal functions)

E01 Terminal [X1] function

E01 defines the function of digital input terminal X1.

Setting data Function Symbol

0 Enable external alarm trip THR
1 Cancel current limiters LMT-CCL
2 73 answerback 73ANS
3 Switch current limiter values I-LIM
4 Option DI OPT-DI

Setting procedure

• Select the desired function. Take "73 Answerback" for
example.

• To assign the "73 answerback" function to [X1], set
E01 to "2" (73ANS).

• Turn the terminal [X1] (73ANS) ON from an external
device to supply a 73 answerback signal.

• Check if the ON/OFF status of
[X1] is acknowledged, on the I/O
check screen of the keypad.

Turning [X1] ON changes X1
to X1 in the figure shown at the
right.

• When the terminal is accessed via
the communications link, use the
same screen for checking.

< Configuring contacts as a "normally open" or
"normally closed" contact" >

Contacts can be configured as a "normally open" or
"normally closed" contact, with Function code E14 (I/O
function (Normally open/closed)). For details, refer to
the description of E14.

Function code data = 0

Enable external alarm trip -- THR

Upon receipt of THR, the converter trips with alarm

J

. This signal is internally held, so an input of RST
resets the tripped state. Use this signal to stop the
converter because of a failure of an external device.

The factory default is a "normally open" contact. To use
it as a "normally closed" contact, use Function code
E14 to change the setting.

Function code data = 1

Cancel current limiters -- LMT-CCL

This digital input signal cancels the current limiters
defined by H15 through H18. Upon receipt of
LMT-CCL, the converter disables all those current
limiters.

ڧ

RUNڧY1 ڧY5A

ڧ

RSTڧY2

ڦ

X1 ڧY3

AO1 =sxx.xV

㸮

6-5

Function code data = 2

73 answerback -- 73ANS

Since the charging circuit is configured outside the
converter, use this function to add an auxiliary contact
of the charging circuit magnetic contactor (73) to the
ready-to-run conditions of the converter.

When E01 = 2, if the converter receives no 73ANS
within 500 ms after the charging circuit control output
(73A, 73C) is activated, then the converter trips with
alarm

RDH

.

Since this condition is judged only when the main
circuit power of the converter is turned ON; the
converter does not trip if the 73ANS is turned OFF
when the main circuit power is ON.

500 ms 500 ms

t

DC link bus voltage

Power-on (52)

Charging circuit

control output (73A)

73 answerback (73ANS)

RDH alarm

Note: When E01 z 2, no

RDH

alarm occurs.

Function code data = 3

Switch current limiter values -- I-LIM

This digital input signal switches the current limiter
values defined by H15 to H18.

Function code data

Current limiter values to apply

3

OFF

H15 (Drive 1),
H17 (Brake 1)

ON

H16 (Drive 2),
H18 (Brake 2)

Function code data = 4

Option DI -- OPT-DI

Use this function for special purposes. This function is
selected by factory default; however, there is no effect
on the control action.

E02 to E13 Y terminals functions

E02 through E13 assign part of control and monitor
signals to output terminals [Y1] through [Y3], [Y5],
and [Y11] through [Y18].

Setting

data

Function Symbol

0 Converter running RUN
1 Converter ready to run RDY
2 Source current limiting IL
3 Lifetime alarm LIFE
4 Heat sink overheat early warning PRE-OH
5 Overload early warning PRE-OL
6 Power running DRV
7 Regenerating REG
8 Current limiter early warning CUR
9 Restarting after momentary

power failure

U-RES

10 In synchronization with source

frequency

SY-HZ

11 Alarm content AL1
12 Alarm content AL2
13 Alarm content AL4
14 Option DO OPT-DO

Setting procedure

• Select the desired function. Take "Converter ready to
run" for example.

• Assign "Converter ready to run" function to one of
the available contacts (Y1 to Y3, Y5A, and Y11 to
Y18). To assign it to Y3, for example, set E04 to "1"
(RDY).

• Turn the power ON. When the converter is ready to
run, the terminal [Y3] comes ON.

• Check if the ON/OFF status of
[Y3] is acknowledged, on the I/O
check screen of the keypad.

Changing [Y3] from "normally
open" to "normally closed"
changes Y3 to Y3 in the
figure shown at the right.

< Configuring contacts as a "normally open" or
"normally closed" contact" >

Contacts can be configured as a "normally open" or
"normally closed" contact, with Function code E14 (I/O
function (Normally open/closed)). For details, refer to
the description of E14.

ڧ

RUNڧY1 ڧY5A

ڧ

RSTڧY2

ڧX1ڦ

Y3

AO1 =sxx.xV

㸮

6-6

Function code data = 0

Converter running -- RUN

This output signal comes ON when the converter
outputs a voltage (during boosting of DC link bus
voltage).

Note: If the DC link bus voltage drops due to a
momentary power failure, the converter comes to a stop,
turning the RUN off.

Function code data = 1

Converter ready to run -- RDY

This output signal comes ON when the converter
becomes ready to run after the main circuit power is
supplied and a RUN command is entered.

This signal is used as an interlock signal for a run
command of the inverter connected with the converter,
as shown in the basic connection diagram.

Function code data = 2

Source current limiting -- IL

This output signal comes ON when the current
command value is limited by current limiter values
(H15 to H18).

The hysteresis width for prevention of chattering of
signal output is set with E17 "Current limiting signal."

Function code data = 3

Lifetime alarm -- LIFE

This output signal comes ON when the cumulative run
time of any of the DC link bus capacitor (smoothing
capacitor), electrolytic capacitors on the control printed
circuit board, and cooling fan inside the converter has
approached the end of the service life.

The life judgment depends on the following. The
cumulative run time information can be monitored on
the maintenance info screen in real time.

Part Life judgment level

DC link bus capacitor Cumulative 87,600 hours

(Cumulative power-on hours of
main circuit)

Electrolytic
capacitors on control
printed circuit board

Cumulative 87,600 hours
(Cumulative control power-on

hours of converter)

Cooling fans 87,600 hours

This is the estimated life of the
cooling fan at ambient
temperature of 30°C.

This function should be used merely as a guide. Daily
inspection and periodic inspection are necessary to
avoid failures and to continue reliable operation over a
long time.

Function code data = 4

Heat sink overheat early warning -- PRE-OH

This signal comes ON when the temperature of the heat
sink reaches a temperature 5°C lower than the "heat
sink overheat alarm (

J

)" level (X°C).

The heat sink overheat alarm level (X°C) varies
according to the combination of the converter capacity
and the current rating level (MD (CT) or LD (VT)
mode), and it is fixed within the range of approximately
70°C to 110°C.

X-15 X-5 X

10 5

Hysteresis: 10

Heat sink overheat

early warning

Active

Inactive

Temperature

of heat sink

Heat sink overheat
alarm level: X

Function code data = 5

Overload early warning -- PRE-OL

This output signal comes ON when the converter
overload reaches the converter overload early warning
level specified by E15. For details, refer to the
description of E15.

Function code data = 6

Power running -- DRV

Function code data = 7

Regenerating -- REG

The DRV or REG output signal is turned ON during
power running or regeneration of the converter,

respectively. During no-load running (with current
command within 3%), the converter is in the RUN state
and both the DRV and REG are turned OFF.

The state can be monitored on the running screen

(GUIDANC) of the keypad.

DRV

RUN

REG

-

-3% -1% 1% 3%

+

: Hysteresis width zone

Current reference
value of converter

0

6-7

Function code data = 8

Current limiter early warning -- CUR

This output signal comes ON when the current
command value exceeds the current limiter early
warning level specified by H19 and it is kept for the
timer period specified by H20.

This signal enables the converter to reduce the load
before the current limiter function is activated.

Early warning
timer (H20)

Early warning
timer (H20)

CUR

Early warning
level (H19)

Current limiter
activation level

Current command value

t

Function code data = 9

Restarting after momentary power failure -- U-RES

This output signal comes ON when the converter
detects a momentary power failure and shuts off its
output. After the power is restored and the DC link bus
voltage exceeds the undervoltage recovery level, this
signal goes OFF.

If such a long-time power failure that the control power
of the converter is lost occurs when the U-RES is ON,
then restoring the power causes the converter to start in
the regular startup sequence with the U-RES being
OFF.

Function code data = 10

In synchronization with source frequency -- SY-HZ

This output signal comes ON when the control
frequency inside the converter is synchronized with the
source frequency. It goes OFF upon detection of
out-of-synchronization, momentary power failure, or
frequency alarm.

This signal may go OFF when there is distortion or
dipping in the source voltage waveform due to adverse
power supply conditions.

I

Function code data = 11, 12, 13

Alarm content -- AL1, AL2, AL4

The combination of these output signals shows the

activation state of the converter protective functions.

Alarm content

(Converter protective function)

Output terminals

[AL1] [AL2] [AL4]
No alarm OFF OFF OFF
Current error

(AOC, ACE)

ON OFF OFF

Voltage error
(AOU, dOU, ALU, dLU)

OFF

ON OFF

Main circuit error
(ACF, PbF, Er8)

ON ON OFF

Input error or external fault
(LPU, FrE, OH2)

OFF OFF

ON

CPU, operation or
communications error
(Er1, Er2, Er3, Er4, Er6, Erb)

ON OFF ON

Overheat or overload
(OH1, OH3, OLU)

OFF

ON ON

Others (Ar1 to Ar8) ON ON ON

Function code data = 14

Option DO -- OPT-DO

Provided for particular manufacturers.

E14 I/O function (Normally open/closed)

E14 configures contacts RUN, X1, Y1 to Y3, Y5 and
30RY individually as a "normally open" or "normally
closed" contact by software.

OP: Open
CL: Closed

Setting data State

0 Normally open
1Normally closed

E15 Converter overload early warning level

E15 specifies the overload early warning signal level to
apply before the overload protective function is
activated.

To issue an overload early warning, set E15 to less than
100%. When E15 = 100%, the early warning will be
issued at the same timing as the overload alarm.

Setting range: 50 to 105%

The overload early warning will be issued when
PRE-OL is assigned to any of control terminals [Y1]
through [Y3], [Y5], and [Y11] through [Y18] using any
of E02 to E13.

E14 I/O OP/CL

OP

CL

RUN X1 Y1 2 3 5 30

6-8

E16 Cooling fan ON/OFF control

E16 specifies whether to detect the temperature of the
heat sink inside the converter and control the cooling
fan ON/OFF automatically.

The standard specification is "0" (Disable).

Setting data Cooling fan ON/OFF control

0 Disable (Always in operation)
1 Enable (ON/OFF control)

Note: The cooling fan works when the converter is
running irrespective of the E16 setting.

E17 Current limiting signal (Hysteresis width)

E17 specifies the hysteresis width of the source current
limiting signal IL.

Setting range: 0 to 30%

ON

OFF

Current

command value

Hysteresis

width
(E17)

Current limiter

value

H15, H16

IL

E18 to E20 AO terminals functions

E18 through E20 assign signals to analog output
terminals [AO1], [AO4] and [AO5] and select AO
adjustment signals.

Setting

data

Function Symbol Scale

0 Input power PWR ±200%/±10V

1 Input current (rms) I-AC +200%/+10V

2 Input voltage (rms) V-A C 500 V/10 V

3 DC link bus voltage V-D C 1000 V/ 10V

4 Source frequency FREQ 100 Hz/10 V

5 +10V output test P10 --

6 -10V output test N10 --

* Do not set "7" or larger value to E18 to E20 since they are

for adjustment by Fuji.

* [AO4] and [AO5] are available only when the

OPC-VG7-AIO is mounted.

Setting procedure

• Check the devices such as a meter to be connected to
AO terminals together with wiring. Setting "5"
enables a +10V output test.

• Select the desired function. Take "DC link bus
voltage" for example.

• Assign "DC link bus voltage" function to one of the
available AO terminals ([AO1], [AO4] and [AO5]).
To assign it to [AO1], for example, set E18 (Terminal
[AO1] function) to "3" (V-D C).

• The voltage issued onto the
terminal [AO1] can be checked
on the I/O check screen of the
keypad.

• The gain, bias, and filter can be
specified with E21 to E23, E24 to
E26, and E27, respectively, for
analog outputs.

ڧ

581ڧ<ڧ<$

ڧ

567ڧ<

ڧ

;ڧ<

$2 9

㸮

6-9

Function Application

Bias Setting bias. For details, refer to the description of E24 to E26.

Gain Use gain to view a small output range of data in an enlarged scale or to view a wide output range of data

in a reduced scale. Enter a negative value to inverse the polarity. For details, refer to the description of
E21 to E23.

Filter There is no need to change from the factory default 0.010 s (10 ms). If wiring between the AO terminal

and the device (e.g., meter) or the device itself is susceptible to noise, this filter function has no effect.
Take measures against noise outside the terminal. For details, refer to the description of E27.

Output resolution

The AO output is the result of D/A conversion of a 12-bit digital
output. Because 11 bits (2047) on a single side are issued to the
half scale (+12V), the output resolution is 5.86 mV. Accordingl

y

the binary number for 10 V becomes 1705 (2047 x 10/12).

Voltage output

+12 V

1 bit

5.86 mV (12 V/2047)

+2047 (11 bits)

-12V

4095 (12 bits)

Internal data

0

Output cycle

Signals are output in sampling cycle of approximately 500

P

s.

M

P(+)

N(-)

U

W

V

P(+)

N(-)

L1/R

L3/T

L2/S

Lr

52

Lf

Cf

Rf

E(G)E(G)

F

R0

73

0: Input power PWR
2: Input voltage (rms) V-AC
4: Source frequency FREQ

1: Input current (rms) I-AC

3: DC link bus voltage V-DC

Converter Inverter

Motor

To control
terminal

To control
terminal

Filter

5: +10V output test P10

6: -10V output test N10

+10V and -10V fixed values are output for adjustment of analog output.

6-10

E21 to E23 AO gain setting

E21 to E23 specify the gain for analog outputs AO1,
AO4 and AO5, respectively.

Setting range: -100.00 to 100. 00 (times)

Note: [AO4] and [AO5] are available only when the
OPC-VG7-AIO option is mounted.

+10V

2.50

1.00

0.50

+10V

-1.00

-10V

-10V

0

Output voltage

Control internal data

-2.50

E24 to E26 AO bias setting

E24 to E26 specify the bias for analog outputs AO1,
AO4 and AO5, respectively.

Setting range: -100.0 to 100.0 (%)

Note: [AO4] and [AO5] are available only when the
OPC-VG7-AIO option is mounted.

+10V

100.0%

0.0%

-40.0%

+10V

-100.0%

-10V

-10V 0

Output voltage

Control internal data

E27 AO1-AO5 filter setting

E27 specifies the output filter time constant for all
analog outputs AO1, AO4 and AO5.

Setting range: 0.000 to 0.500 (s)

Note: [AO4] and [AO5] are available only when the
OPC-VG7-AIO option is mounted.

H codes (High performance functions)

H01 Station address (RS-485)

H01 specifies the station address for the RS-485
communications link.

Setting range: 0 to 255

H02 Error processing

H02 specifies the error processing to be performed if a
communications error occurs in RS-485, T-Link, SX
bus or CC-Link.

Setting data Function

0 Forcibly stop (

GT

)

1 Run for the period specified by H03 and

then trip.

2

Trip if a communications error persists
exceeding the period specified by H03.

3 Continue to run.

H03 Timer

H03 specifies an error processing timer for RS-485,
T-Link, SX bus or CC-Link.

The timer is available when H02 = 1 or 2.

Setting range: 0.01 to 20.00 (s)

6-11

H04 Baud rate (RS-485)

H04 specifies the transmission speed for RS-485
communication.

Setting data Transmission speed

0 38400 bps
1 19200 bps
2 9600 bps
3 4800 bps
4 2400 bps

H05 Data length (RS-485)

H05 specifies the character length for RS-485
communication.

For the SX protocol or Modbus RTU protocol, the data
length is fixed at 8 bits irrespective of the H05 setting.

Setting data Data length

0 8 bits
1 7 bits

H06 Parity check (RS-485)

H06 specifies the property of the parity bit for RS-485
communication.

For the SX protocol, the setting is fixed at even parity
irrespective of the H06 setting.

Setting data Parity

0None
1 Even parity
2 Odd parity

H07 Stop bits (RS-485)

H07 specifies the number of stop bits for RS-485
communication.

For the SX protocol, the setting is fixed at 1 bit.

Setting data Stop bits

0 2 bits
11 bit

H08 Communications link break time (Timeout)

(RS-485)

H08 specifies the time interval from when the converter
detects no access due to a wire break until it outputs a
trip signal. This applies to a system that always
accesses its station within a predetermined interval
during communication using the RS-485
communications link.

Setting range: 0.1 to 60.0 (s)
(When H08 = 0: No detection)

H09 Response interval (RS-485)

H09 specifies the latency time after receipt of a query
sent from the host equipment until sending of the

response via the RS-485 communications link.

This function allows the converter to send a response
timely to a PC whose response is slow.

Setting range: 0.00 to 1.00 (s)

H10 Protocol selection (RS-485)

H10 specifies the communications protocol for RS-485
communication.

Setting data Protocol

0 Fuji's general-purpose inverter protocol
1 SX protocol (Loader protocol)
2 Modbus RTU protocol
3 Trace protocol

For details, refer to Chapter 9 "Using Standard RS-485
Interface."

H11 TL transmission format

H11 specifies the transmission format to be used in
transmission via the T-Link with the OPC-VG7-TL
option.

Setting data TL transmission format

04W+4W
18W+8W

For details, refer to Chapter 10 "Control Options."

H12 Parallel system

H12 specifies whether to enable the parallel system
functions using the OPC-VG7-SI (SIR) option.

Setting data Parallel system

0 Disable
1Enable

For details of this function, contact your Fuji Electric
representative.

H13 Number of slave stations in parallel system

H13 specifies the number of slave stations (excluding
master) available in the parallel system using the
OPC-VG7-SI (SIR) option.

Setting range: 1 to 5

For details of this function, contact your Fuji Electric
representative.

6-12

H14 Alarm data deletion

Setting H14 to "1" deletes all the alarm history and
alarm information held in the converter.

After that, the H14 data automatically reverts to "0."

Setting range: 0 or 1

H15 to H18 Current limiter values

(Drive 1 or 2, Brake 1 or 2)

The current limiter values can be specified in two
ways--one using H15 to H18 and the other via the
communications link.

To select those values, use the digital input signals
LMT-CCL (Cancel current limiters) and I-LIM (Switch
current limiter values). For details, refer to the
description of E01 (Terminal [X1] function).

Setting range: (Driving) 0 to 150%

(Braking) -150 to 0%

H19, H20 Current limiter early warning

(Level, Timer)

If the current command value exceeds the current
limiter early warning level specified by H19 and it is
kept for the timer period specified by H20, then the
converter issues the current limiter early warning
(CUR).

For details, refer to the description of the Y terminals
functions (E02 to E13).

Setting range: (Level) -150 to 150%

(Timer) 0 to 60 (s)

U codes (User application functions)

U01 (Reserved)

Function code reserved for particular manufacturers. Do
not change the setting from the factory default.

Changing the setting from the factory default could
influence converter running.

Accidents or injury may result.

U02 SX bus station number monitor

This function code applies only when the SX bus option
card (OPC-VG7-SX) is used.

U02 reads out the SX bus station number allocated to
the converter itself by the MICREX-SX, depending
upon the system configuration. (Read-only function)

Note: The U02 data is displayed in decimal. When
setting the station number with the rotary switches,
however, use the hexadecimal value.

U03 (Reserved)

Function code reserved for particular manufacturers. Do
not change the setting from the factory default.

Changing the setting from the factory default could
influence converter running.

Accidents or injury may result.

6-13

U04 AVR control response

U04 adjusts the control response of the automatic
voltage regulator (AVR).

If the output DC voltage or the input current is not
stabilized when the converter is running due to the
applied system, then use this function code for
adjustment.

Setting data AVR operation mode

0

Standard high-response mode
(In combination with the same capacity
inverter)

1

Control mode 1
(Applying to a generator power supply or
for two or more converters combined)

2

Control mode 2
(Others)

U04 = 0 (Standard high-response mode):
Select this setting when the converter is used in
combination with an inverter of the same capacity and it
is connected with the commercial power supply.

U04 = 1 (Control mode 1):
Select this setting when

- the converter applies to a battery or generator power
supply,

- the converter is used in combination with an inverter
of the different capacity or in combination with two or
more inverters in DC common connection, or

- two or more converters are connected with the same
power supply so that the input current is not
stabilized.

U04 = 2 (Control mode 2):
This setting suppresses the control response. Select this
setting when the DC voltage or input current is not
stabilized even when U04 = 1.

U05 DC voltage command mode

When the converter runs, the output DC voltage is
boosted from the rectified voltage of the source voltage
to a constant value.

The factory default is a variable mode based on the
source voltage (U05 = 0). Using U05 enables a fixed
mode in which the output DC voltage is constant
irrespective of the source voltage, just as the previous
models.

Setting data Control mode DC voltage command value

0 Variable mode

320 to 355 V (200 V)
640 to 710 V (400 V)

1

Fixed mode
(Equivalent to
previous
models)

340 V (200 V)
680 V (400 V)

U06 to U10 (Reserved)

Function codes reserved for particular manufacturers.
Do not change these settings from the factory defaults.

Changing the setting from the factory default could
influence converter running.

Accidents or injury may result.

7-1

7 Troubleshooting

7.1 List of Protective Functions

When resetting the alarm stop state, be sure to check that a run signal is OFF beforehand. Resetting it with the
RUN and CM being short-circuited may cause a sudden restart.

Accidents may result.

If an alarm occurs in the converter, the converter activates the protective function to immediately stop (trip) itself
and displays an alarm code on the LED monitor. Remove the cause that has activated the protective function or
replace faulty parts, and then enter a reset command to cancel the protective function and restart converter operation.
Even if a reset command is entered without removal of the alarm cause, the protective function cannot be canceled.
For the description of alarms, refer to Table 7.1-1.

Table 7.1-1 Alarm Indication and List of Protective Functions

Name of alarm Indication Description

AC fuse blown ACF

The AC fuse outside the converter is blown out due to a short or broken internal
circuit.

AC overcurrent AOC

The momentary AC current has exceeded the overcurrent detection level due to
a short circuit or grounding fault in the power supply circuit.

AC undervoltage ALV

The source AC voltage has dropped below the undervoltage detection level
during converter operation.

Note that no alarm is issued when F02 (Restart Mode After Momentary Power
Failure) = 1.

AC undervoltage detection level (400 V system: 176 Vrms)

AC input current error ACE

The difference between the current reference value of the converter and the
detected input AC power value has exceeded the input current error detection
level.

Note that no alarm is issued when F02 (Restart Mode After Momentary Power
Failure) = 1.

AC overvoltage AOV

The source AC voltage has exceeded the AC overvoltage detection level.

AC overvoltage detection level (400 V system: 552 Vrms)

DC overvoltage dOV

The regenerative current of the inverter has increased (until the regenerative
energy has exceeded the braking capacity) so that the DC link bus voltage has
exceeded the DC overvoltage detection level.

DC overvoltage detection level (400 V system: 800 Vdc)

DC undervoltage dLV

The DC link bus voltage has dropped below the undervoltage detection level
due to a voltage drop of the power supply during converter operation.

Note that no alarm is issued when F02 (Restart Mode After Momentary Power
Failure) = 1.

DC undervoltage detection level (400 V system: 371 Vdc)

Input phase loss LPV

This function works immediately after the power is turned ON.

The converter has stopped due to a phase loss in the three-phase power supply
connected to main power inputs L1/R, L2/S and L3/T or an interphase voltage
unbalance in the three-phase source voltage.

To reset the alarm state, restart the converter.

7-2

Name of alarm Indication Description

Power line frequency
synchronization error

FrE

The detected source frequency has gone out of the range from 46 to 54 Hz or 56
to 64 Hz (immediately after power-on only) or it has exceeded the "basic
frequency (50/60 Hz) ±15%," or the standard deviation of the source frequency
multiplied by three (3V) has exceeded 5 Hz (at the time of a run command
input).

Note that no alarm is issued when F02 (Restart Mode After Momentary Power
Failure) = 1.

Charging circuit error PbF

This function is enabled only when 73ANS (73 answerback) is selected using
the X1 function.

There has been no X1 input (that is, the output signals of charging circuit has
not output or the magnetic contactor for bypassing the charging circuit has not
closed) within 0.5 sec after the charging circuit control output 73A signal was
issued. To reset the alarm stop state, change the X1 function selection or restart
the converter.

Heat sink overheat OH1

Due to a stop of the cooling fan(s), etc., the temperature around the heat sink
that cools down semiconductor elements of the main circuit has risen.

External alarm OH2 The converter has stopped due to the entry of the external signal THR.

Overheat inside
converter

OH3

The temperature around the control printed circuit board has risen due to poor
ventilation inside the converter.

Converter overload OLU

The AC source current has exceeded the inverse-time characteristic overload
level of the converter shown in Figure 7.1-1.

For MD (CT) mode: 150% / 60 s
For LD (VT) mode: 110% / 60 s

Memory error Er1 A data writing error or other errors in the memory have occurred.

Keypad
communications error

Er2 A keypad transmission error has occurred.

CPU error Er3 A CPU error has occurred.

Network device error Er4

When the converter was driven through the communications link such as
RS-485, T-Link, SX bus or CC-Link, a transmission error has occurred due to
noise.

This alarm is caused by a PLC failure, wire break in the communication path, or
failure of options.

Operation procedure
error

Er6 Two or more network option boards (T-Link, SX Bus, or CC-Link) are mounted.

A/D converter error Er8 An error has occurred in the A/D converter circuit.

Optical network error Erb

A transmission error has occurred in the communications link between
converters using high-speed serial cards (SI or SIR option).

7-3

MD (CT) mode LD (VT) mode

80 100 120 140 160 180

0

60

120

180

240

300

360

420

480

䊻 Action time (s)

䊻 Converter input current (%)

(100%: Rated converter input current)

80 100 120 140

0

60

120

180

240

300

360

420

480

䊻 Action time (s)

䊻 Converter input current (%)

(100%: Rated converter input current)

Figure 7.1-1 Overload Trip Time

RHCS/B-4DE 132 160 200 220 280 315 630 710 800

Rated input

current (A)

MD(CT) mode 233 282 353 385 489 550 1099 1239 1396

LD(VT) mode 282 353 385 - 550 619 1239 1396 1746

7.2 Error Reset

To reset a tripped converter, remove the cause and then press the RESET key on the keypad or enter a reset
command RST from the control input terminal.

Before turning the reset signal ON, be sure to turn a run command OFF. Otherwise, the converter restarts running
after reset. It is dangerous.

7-4

7.3 Troubleshooting

When the protective function is activated:

(1) Overcurrent (AOC)

Perform wiring correctly.

Is the phase order of wiring at L1/R, L2/S, L3/T, R1, S1

and T1 correct?

Reduce the load or
select a converter
having a larger capacity.

Connect the converter
to the suitable power
supply.

Is the load too large?

Does the source voltage exceed the specification?

Overcurrent

AOC

Failure of the converter is probable.

Contact FUJI.

NO

NO

NO

NO

YES

YES

Remove the short circuit
or grounding fault.

Is there a short circuit or grounding fault in wiring or
devices in the AC or DC circuit?

YES

YES

(2) AC fuse blown (ACF)

[RHC630B~800B-4D]

AC fuse blown

ACF

The wiring inside the
converter may be short­circuited. Contact FUJI.

Correct the wiring.

Are the phase order in the wiring
to the AC fuse blowout detection
terminals R2 and T2 correct?

NO

NO

Remove devices
not specified in the
basic connection
diagram.

Are devices other than those
specified in the basic connection
diagram connected between the
charging circuit magnetic
contactor and converter?

YES

YES

7-5

(3) Overvoltage (AOV, dOV)

Reduce the source
voltage to within the
upper limit.

Is the source voltage within the specification range?

Is there a power failure during regeneration operation?

Is the regeneration load too large?

Is the function activated at the end of quick acceleration?

Is the function activated when the load is quickly reduced?

Is a generator used for AC power supply?

Set a longer
acceleration time to the
inverter.

Internal converter
adjustment is required.

Overvoltage

AOV,dOV

The braking system must be
examined. Contact FUJI.

Contact FUJI.

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES

YES

NO

Perform wiring correctly.

Is the phase order of wiring at L1/R, L2/S, L3/T, R1, S1

and T1 correct?

NO

· Set a longer deceleration
time to the inverter.

· Examine the regeneration
load.

· Examine the converter
capacity.

7-6

(4) Undervoltage (ALV, dLV)

Examine the power supply
system to satisfy the
specifications.

Undervoltage

ALV,dLV

Is there any defective device or
poor connection in the power
supply circuit?

Reset and restart operation.

Replace defective devices
and correct connection.

The converter may be
broken. Contact FUJI.

A converter control
circuit failure or
malfunction caused by
noise is probable.
Contact FUJI.

Is the DC (P-N) voltage of the main
circuit larger than the detection level
specified in Table 7.1-1?

Is this protective function
activated when the circuit
breaker or magnetic contactor
is turned ON?

Is the power supply
transformer capacity correct?

Is the source voltage within the
specified range?

YES

NO

NO

YES

YES

YES

NO

NO

NO

NO

YES

Examine the power
supply transformer
capacity.

NO

YES

YES

Does the charging circuit magnetic
contactor (73) go active only when
the power is turned on?

Check the sequence circuit of
the charging circuit magnetic
contactor.

NO

YES

Was there a power failure (incl.
momentary one)?

Is there any load requiring a large
starting current in the same power
supply system?

(5) Overheat inside converter (OH3), heat sink overheat (OH1)

Is the cooling airflow path
blocked?

Is the load too large?

Is the ambient temperature
within the specified range?

Is the cooling fan
rotating?

Improve the environment to
keep the ambient
temperature within the
specified range.

Reduce the load.

Converter failure or
malfunction caused by
noise is probable.
Contact FUJI.

Remove obstacles.

Replace the cooling fan.

YES

YES

YES

YES

NO

NO

NO

NO

Overheat inside

converter

OH3

Heat sink overheat

OH1

7-7

(6) Converter overload (OLU)

Converter overload

OLU

Is the load too large
or has it exceeded
the converter
overload capability?

Has acceleration/
deceleration repeated
frequently?

Converter failure is
probable. Contact
FUJI.

Examine the operation
pattern or select a converter
having a larger capacity.

Reduce the load or select a
converter having a larger
capacity.

NO

YES

NO

YES

(7) Memory error (Er1), CPU error (Er3)

Memory error, CPU error

Er1, Er3

Is the error code
removed?

Turn the power OFF temporarily.
After the charge lamp (CHARGE)
goes OFF, turn the power ON again.

The converter is normal.
Continue operation.

Is there any noise
source in the vicinity?

Correct faults.

NO

NO

YES

YES

Converter failure or
malfunction caused by
noise is probable.
Contact FUJI.

7-8

(8) Input phase loss (LPV)

Input phase loss

LPV

Are power supply wires
connected to all of
terminals L1/R, L2/S and
L3/T of the main circuit?.

Connect power supply
wires to all the three
phases.

Are screws on the
terminal block loosened?

Is the interphase voltage
unbalance large in the three­phase source voltage?

Power supply failure.
Examine the power
supply system including
wiring.

Retighten the screws on
the terminal block.

YES

NO

NO

YES

YES

NO

Converter failure or
malfunction caused by
noise is probable.
Contact FUJI.

(9) A/D converter error (Er8)

Converter failure or
malfunction caused by
noise is probable.
Contact FUJI.

A/D converter error

Er8

Is there a short circuit or
dust accumulation on the
printed circuit board?

Correct faults.

YES

NO

7-9

(10) Power line frequency synchronization error (FrE)

Source frequency error

FrE

Is the source within the
range from 46 to 54 Hz or
56 to 64 Hz?

Are wires connected to
the AC power supply
detection terminals R1,
S1 and T1?

Any remarkable
waveform distortion in
the source voltage
waveform?

Chattering in the power
supply contactor when the
power is turned ON?

Is the power supply
transformer capacity
too small?

Examine the power
supply system to
satisfy the
specifications.

Change the sequence
so that inductive loads
are disconnected before
the power is turned
OFF.

Replace the contactor
or add a timer in the
sequence circuit for
prevention of chattering.

Connect the converter
to the power supply
satisfying the specified
capacity requirement.

Correct wiring.

Change to another
power supply system.

Converter failure or
malfunction caused by
noise is probable.
Contact FUJI.

Is this protective function
activated when the power is
turned OFF?

YES

NO

YES

NO

NO

YES

NO

YES

NO

YES

NO

YES

7-10

(11) Keypad communications error (Er2)

Keypad communication error

Er2

Are the keypad
connectors and
sockets inserted
securely?

Correct faults.

Turn the power OFF temporarily.
After the charge lamp goes OFF,
turn the power ON again.

Is correct data displayed on
the keypad?

Converter failure.
Contact FUJI.

The converter is normal.
Continue operation.
However, if this error
occurs frequently,
converter failure is
probable. Contact FUJI.

YES

NO

NO

YES

(12) External alarm (OH2)

External alarm

OH2

Is the alarm signal line of an
external device connected to
the THR-assigned digital input
terminal (X terminal)?

Does the definition of the
alarm signal issued by an
external device match the
definition specified by E14
(Normally open/normally
closed)?

Connect an alarm signal
contact.
If the terminal is left
unconnected, change
the definition of the
digital input (X terminal).

Change the "normally
open/normally closed"
definition.

Converter failure or

malfunction caused by

noise is probable.

Contact FUJI.

YES

NO

YES

NO

Is the alarm function of
the connected external
device activated?

Remove the cause that
activates the alarm
function from the
external device.
(Ex. AC fuse blown )

YES

NO

7-11

(13) Charging circuit error (PbF)

This function is enabled only when 73ANS (73 answerback) is selected using the X1 function.

Charging circuit error

PbF

Is the the output signals of charging
circuit or auxiliary contact of the
magnetic contactor for bypassing
the charging circuit connected to
the 73ANS-assigned digital input (X
terminal)?

Does the auxiliary contact of the
charging circuit magnetic contactor
function within 0.5 sec. after the
charging circuit control output 73A
signal is issued.

*For 280 kW or above capacities:
the auxiliary contact of magnetic
contactor for power supply should
be connected.

Converter failure or
malfunction caused by
noise is probable.
Contact FUJI.

Connect the auxiliary contact to
the digital input. Or if the terminal
is left unconnected, change the
definition of the digital input (X
terminal).

Check the sequence circuit of the
charging circuit magnetic
contactor.

NO

NO

YES

YES

(14) AC input current error (ACE)

AC input current error

ACE

Is there a short circuit or
grounding fault in wiring or
devices in the AC or C
circuit?

Has the load exceeded the
current limit level (H15 to
H18)?

Was there a momentary
power failure?

Correct the short circuit or
grounding fault.

Reset and restart operation.
Or select the "Restart mode
after momentary power
failure" (F02 = 1).

Increase the current limit
level. Or reduce the load or
select a converter having a
larger capacity.

Contact FUJI.

NO

NO

NO

YES

YES

YES

7-12

(15) Other errors

The following alarms are related with options. For details, refer to the description of each option.

Er4: Network device error

This error could occur when the communications option (RS-485, T-Link, SX Bus, or CC-Link) is used.

Erb: Optical network error

This error could occur when the high-speed serial card (OPC-VG7-SI or OPC-VG7-SIR) is used.

Er6: Operation procedure error

This error could occur when option cards are mounted in the wrong way (e.g., mounting options not allowed
for use in combination) or a hardware station number of the high-speed serial card (OPC-VG7-SI, SIR) is
wrongly set.

7-13

7.4 Converter Cannot Get Ready to Run

Upon receipt of a RUN command, the converter outputs the RDY signal ("Converter ready to run") that acts also as
an inverter's run condition.

This section provides the troubleshooting procedure to apply when no RDY signal is issued even after the receipt of a
RUN command.

No output of RDY signal

Is the charge lamp
(CHARGE) lit and does
the keypad display
something?

Is a RUN command
entered?

Are the power supply
circuit breaker and
magnetic contactor turned
ON?

Is the voltage at the
power supply terminals
(L1/R, L2/S and L3/T)
normal?

Is the wiring as specified
in the basic connection
diagram? Is the phase
order correct?

Are synchronous power
supply input terminals
(R1, S1 and T1) wired?

Alarm trip?

Remove the cause of the
alarm, reset the alarm
state, and run the
converter

Perform correct wiring.

Perform correct wiring to
R1, S1 and T1.

Enter a RUN command.

Converter failure is
probable. Contact us.

Converter failure is
probable. Contact FUJI.

Check for voltage drop,

phase loss, poor

connection, poor

continuity and other

faults and take corrective

measure.

Turn the power ON.

YES

NO

YES

YES

YES

YES

YES

NO

NO

NO

NO

NO

NO

Are recommended filter
stack model, reactor
model and cable size
used?

YES

YES

Is the magnetic contactor
for the charging resistor
and the power supply
turned ON with the
charging circuit control
output 73A signal?

Examine the sequence
circuit.

Perform correct wiring
and apply adequate
peripheral devices.

NO

NO

Does "2222" persist on
the LED monitor?

Perform correct wiring to
R1, S1 and T1.

NO

YES

YES

8-1

8 Maintenance and Inspection

Perform daily and periodic inspections to avoid trouble and keep reliable operation of the converter for a long time.
When performing inspections, follow the instructions given in this chapter

• Before proceeding to the maintenance/inspection, turn the power OFF and make sure that the charging lamp
(CHARGE) is turned OFF. Further, make sure that the DC voltage across the terminals P(+) and N(-) and the
terminal voltage of the filtering capacitor have dropped to the safe level (+25 VDC or below).

Otherwise, an electric shock could occur.

• Maintenance, inspection, and parts replacement should be made only by qualified persons.

• Take off the watch, rings and other metallic objects before starting work.

• Use insulated tools.

Otherwise, an electric shock or injuries could occur.

• Never attempt to modify the product.

Electric shock or injury could occur.

Reference: Necessary tools

• Phillips screwdrivers Nos. 2 and 3 (for M5 and M6)

• Ratchet wrench and sockets (10, 13, 17, and 19 mm)
and extension bar (150 mm desirable)

• Nippers and small pliers (required for correction of external wiring)

8.1 Daily Inspection

Visually inspect the converter for operation errors from the outside without removing the covers when the converter
is running or the power is ON, as listed below.

• Check that the expected performance (satisfying the standard specifications) is obtained.

• Check that the surrounding environment satisfies the standard requirements.

• Check that the monitors and indicators on the keypad are normal.

• Check for abnormal noise, odor or excessive vibration.

• Check for traces of overheat, discoloration and other defects.

8-2

8.2 Periodic Inspection

Before performing periodic inspection, be sure to stop the operation, shut down the power, and remove the front
cover. According to the items listed in Table 8.2-1, perform periodic inspection including points that cannot be
inspected when the power is ON.

After turning the power OFF, make sure that the charging lamp (CHARGE) is turned OFF and the DC voltage across
the terminals P(+) and N(-)and the filtering capacitor has dropped to the safe level (+25 VDC or below) using a
multimeter or the like. This is because even if the power is shut down, the smoothing capacitors remain charged and
require time to be discharged.

Table 8.2-1 List of Periodic Inspections

Check point Check item How to inspect Evaluation criteria

Environment 1) Check the ambient temperature,

humidity, vibration, and atmosphere
(dust, gas, oil mist, or water drops).

2) Check that tools or other foreign
materials or dangerous objects are not
left around the equipment.

1) Check visually or
measure using apparatus.

2) Visual inspection

1) The standard specifications
must be satisfied.

2) No foreign or dangerous
objects are left.

Voltage Check that the AC and DC circuit

voltages are correct.

Measure the voltages using
a multimeter or the like.

The standard specifications
must be satisfied.

Monitor
displays

1) Check that the display is clear.

2) Check that there is no missing part in
the displayed characters.

1), 2)
Visual inspection

1), 2)
The display can be read
and there is no fault.

Frame, covers
and other
structural parts

Check for:

1) Abnormal noise or excessive vibration

2) Loose bolts (at clamp sections).

3) Deformation and breakage

4) Discoloration caused by overheat

5) Contamination and accumulation of
dust or dirt

1) Visual and auditory
inspection

2) Retighten.

3), 4), 5)
Visual inspection

1), 2), 3), 4), 5)
No abnormalities

Main circuit

Common 1) Check that bolts and screws are tight

and not missing.

2) Check the devices and insulators for
deformation, cracks, breakage and
discoloration caused by overheat or
deterioration.

3) Check for contamination or
accumulation of dust or dirt.

1) Retighten

2), 3)
Visual inspection

1), 2), 3)
No abnormalities

Note: Discoloration of bus
bars, if caused, is regarded as
normal in the characteristics.

Conductors
and wires

1) Check conductors for discoloration
and distortion caused by overheat.

2) Check the sheath of the wires for
cracks and discoloration.

1), 2)
Visual inspection

1), 2)
No abnormalities

Ter min al
blocks

Check that the terminal blocks are not
damaged.

Visual inspection No abnormalities

DC link bus
capacitor
(Smoothing
capacitor)

1) Check for electrolyte leakage,
discoloration, cracks, and swelling of
the casing.

2) Check that the safety valve does not
protrude or extend remarkably.

1), 2)
Visual inspection

1), 2)
No abnormalities

Resistors 1) Check for abnormal odor or cracks in

insulators caused by overheat.

2) Check for wire breakage.

1) Olfactory and visual
inspection

2) Check the wires visually,
or disconnect either wire
and measure the
conductivity with a
multimeter.

1) No abnormalities

2) Within about ±10% of the
indicated resistance

Transformer
and reactor

Check for abnormal roaring noise and
odor.

Auditory, visual, and
olfactory inspection

No abnormalities

Magnetic
contactor
and relay

1) Check for chatters during operation.

2) Check that the contact surface is not
rough.

1) Auditory inspection

2) Visual inspection

1), 2)
No abnormalities