Hitachi J300U Series User manual

INSTRUCTION MANUAL
HITACHI INVERTER
Hitachi, Ltd.
Tokyo Japan
NB506XC
After reading this manual, keep it at hand for future reference.
J300 U : USA version
Three phase input 200/400V class
J300 SERIES

- i -
SAFETY
For the Best Results with J300 Series inverter, read this manual and all of the warning sign attached to
the inverter carefully before installing and operating it, and follow the instructions exactly. Keep this
manual handy for your quick reference.
Definitions and Symbols
A safety instruction (message) is given with a hazard alert symbol and a signal word;
WARNING or CAUTION. Each signal word has the following meaning throughout this manual.
This symbol means hazardous high voltage. It used to call your attention to
items or operations that could be dangerous to your and other persons operat-
ing this equipment.
Read these message and follow these instructions carefully.
This is the “Safety Alert Symbol.” This symbol is used to call your attention
to items or operations that could be dangerous to your or other persons operat-
ing this equipment. Read these messages and follow these instructions
carefully.
WARNING WARNING
Indicates a potentially hazardous situation which, if not avoided, can result in
serious injury or death.
CAUTION CAUTION
Indicates a potentially hazardous situation which, if not avoided, can result in
minor to moderate injury, or serious damage of product.
The matters described under CAUTION may, if not avoided, lead to
serious results depending on the situation. Important matters are described in
CAUTION (as well as WARNING), so be sure to observe them.
NOTE NOTE: Notes indicate an area or subject of special merit, emphasizing either
the product’s capabilities or common errors in operation or maintenance.
HAZARDOUS HIGH VOLTAGE
Motor control equipment and electronic controllers are connected to hazardous line voltages. When
servicing drives and electronic controllers, there might be exposed components with cases or protrusions
at or above line potential. Extreme care should be taken to protect against shock.
Stand on an insulating pad and make it a habit to use only one hand when checking components. Always
work with another person in case an emergency occurs. Disconnect power before checking controllers
or performing maintenance. Be sure equipment is properly grounded. Wear safety glasses whenever
working on an electronic controllers or rotating electrical equipment.

- ii -
WARNING: This equipment should be installed, adjusted and serviced by qualified electrical
maintenance personal familiar with the construction and operation of the equipment
and the hazards involved. Failure to observe this precaution could result in bodily injury.
WARNING : The user is responsible for ensuring that all driven machinery, drive train
mechanismnotsuppliedbyHitachi,Ltd.,andprocesslinematerialarecapableofsafeoperation
at an applied frequency of 150% of the maximum selected frequency range to the AC motor.
Failure to do so can result in destruction of equipment and injury to personnel should a single
point failure occur.
WARNING : For protection, install a leak breaker type with a high frequency circuit capable
of large currents to avoid an unnecessary operation. The ground fault protection circuit is not
designed to protect personal injury.
WARNING : HAZARD OF ELECTRICAL SHOCK. DISCONNECT INCOMING
POWER BEFORE WORKING ON THIS CONTROL.
AVERTISSEMENT : RISQUE DE CHOC ELECTRIQUE COUPER L'ALIMENTATION
AVANT LE DEPANNAGE DE CETTE COMMANDE.
WARNING : SEPARATE MOTOR OVERCURRENT, OVERLOAD AND OVER-
HEATING PROTECTION IS REQUIRED TO BE PROVIDED IN ACCORDANCE
WITH THE SAFETY CODES REQUIRED BY JURISDICTIONAL AUTHORITIES.
AVERTISSEMENT : LE MOTEUR DOIT ETRE MUNI D'UNE PROTECTION
DISTINCTE CONTRE LES SURINTENSITES, LA SURCHARGE ET LA
SURCHAUFFE,CONFORMEMENT AU CODE CANADIEN DE L'ELECTRICITE<
PREMIERE PARTIE.
CAUTION: These instructions should be read and clearly understood before working on J300
series equipment.
CAUTION: Proper grounds, disconnecting devices and other safety devices and their location
are the responsibility of the user and are not provided by Hitachi, Ltd.
CAUTION: Be sure to connect a motor thermal switch or overload device to the J300 series
controller to assure that the inverter will shut down in the event of an overload or an overheated
motor.
CAUTION: DANGEROUS VOLTAGE EXISTS UNTIL CHARGE LIGHT IS OFF.
ATTENTION: PRESENCE DE TENSIONS DANGEREUSES TANT QUE LE VOYANT
N'EST PAS ETEINT.
CAUTION: Rotating shafts and above ground electrical potentials can be hazardous. There-
fore,itisstronglyrecommendedthatallelectricalworkconformtotheNationalElectricalCodes
and local regulations. Installation, alignment and maintenance should be performed only by
qualified personnel. Factory recommended test procedures, included in the instruction manual,
should be followed. Always disconnect electrical power before working on the unit.
PRECAUTIONS

- iii -
NOTE : POLLUTION DEGREE 2
The inverter must be used in environment of the degree 2.
Typical constructions that reduce the possibility of conductive pollution are;
1) The use of an un-ventilated enclosure
2) The use of a filtered ventilated enclosure when the ventilation is fan forced that is,
ventilation is accomplished by one or more blowers within the enclosure that provide a
positive intake and exhaust.
NOTE : ENCLOSURE SIZE FOR 75 kW TO 110 kW
The inverter, 75kW to 110kW must be installed into an enclosure with dimmensions no
less than 183cm (72 in) by 183cm (72 in) by 60cm (24 in).
NOTE : SET OF MOTOR CAPACITY AND POLES (A1, A2)
When data does not match a capacity of connected motor , it may cause unstaible motor
operation. Set proper motor capacity (kW) and motor poles even under V/F control mode.
NOTE : ENCLOSURE SIZE FOR 132 kW AND BIGGER
The inverters, 132kW and bigger, are complied as recognizedcomponents.
Therse devices are intended for use in an overall ecclosure with an internal ambient of
40 degree C for variable torque rating or 50 degree C for constant torque rating maximum.
End product temperature testing should be conducted to verify sufficient forced air ventilation
is provided to maintain this ambient in room ambient of 10-40 degree C.
Based upon component level testing , end product temperature testing may be conducted at
any convenient room ambient in the rangeof 20-40 dwgree C, unless the room ambient in the
intended application exceeds 40degree C, in which case testing should be conducted at the
elevated ambient.
Enclosure internal ambient temperature should be measured above the drive on to the upper
left or right side. Temperature measurments on the drive itself should not be necessary.

- iv -
Revision History Table
No. Revision Contents The Date Operation
of Issue Manual No.
1 Page iii : Pollution degree Aug. 1997 NB506XA
Page 2-1 : Description of inverter model
Page4-2 : Change of note
Page 5-8, 5-9 : Addition of 750 to 1100H
Page 5-10 : Terminal description
Page 11-1,11-2,11-3 : addition of 750 to 1100H
2 Page iii : Enclosure size Feb. 1998 NB506XB
Page 4-1 : Enclosure size, page 7-5; note 3,
Page 7-11: F8 boost value in VP1 to 3
Page 7-15: A0 note for boost value
Page 12-13: additio of note 1
Page A25-A31: addition of line for set value
Page A-33: deletion of A-93 on clause
3 Page iii: note for 132 kW to 220 kW is added Feb. 1999 NB506XC
Page 2-1: added 132 to 220kW
Page 4-1; note for 132 kW to 220 kW is added
page 4-2: note,note1 corrected 110kW->260kW
page 5-8: added 1320 to 2200H in table
Page 5-10: terminal layout corrected
Page7-5: corrected monitor d3 39 to 99
Page7-18: A10, addition of 1320 to 2200H
Page 11-1,2,3: added 1320 to 2200H

- v -
TABLE OF CONTENTS
Page
1. SAFETY PRECAUTIONS .......................................................................................... 1-1
2. INSPECTION UPON UNPACKING ........................................................................ 2-1
3. APPEARANCE AND NAMES OF PARTS............................................................. 3-1
4. INSTALLATION.......................................................................................................... 4-1
5. WIRING ......................................................................................................................... 5-1
6. OPERATION................................................................................................................. 6-1
7. OPERATION OF THE DIGITAL OPERATOR...................................................... 7-1
8. PROTECTION FUNCTIONS ..................................................................................... 8-1
9. TROUBLESHOOTING ............................................................................................... 9-1
10. MAINTENANCE AND INSPECTION..................................................................... 10-1
11. STANDARD SPECIFICATIONS .............................................................................. 11-1
12. FUNCTIONS WHEN USING THE OPTIONAL REMOTE OPERATOR.......... 12-1
13. SERVICE ....................................................................................................................... 13-1
APPENDIX 1 ....................................................................................................................... A-1
APPENDIX 2 ....................................................................................................................... A-15
APPENDIX 3 ....................................................................................................................... A-19
APPENDIX 4 ....................................................................................................................... A-20
APPENDIX 5 ....................................................................................................................... A-21
APPENDIX 6 ....................................................................................................................... A-24
APPENDIX 7 ....................................................................................................................... A-25
APPENDIX 8 ....................................................................................................................... A-32

1-1
1. SAFETY PRECAUTIONS
1. Installation
CAUTION
*Be sure to install the unit on flame resistant material such as metal.
Otherwise, there is a danger of fire.
*Be sure not to place anything inflammable in the vicinity.
Otherwise, there is a danger of fire.
*Be sure not to let the foreign matter enter such as cut wire refuse, spatter
from welding, iron refuse, wire, dust, etc.
Otherwise, there is a danger of fire.
*Be sure to install it in a place which can bear the weight according to
the specifications in the text (4. Installation).
Otherwise, it may fall and there is a danger of injury.
*Be sure to install the unit on a perpendicular wall which is not subject
tovibration.
Otherwise, it may fall and there is a danger of injury.
*Be sure not to install and operate an inverter which is damaged or parts
of which are missing.
Otherwise, there is a danger of injury.
*Be sure to install it in a room which is not exposed to direct sunlight
and is well ventilated. Avoid environments which tend to be high in
temperature, high in humidity or to have dew condensation, as well as
places with dust, corrosive gas, explosive gas, inflammable gas,
grinding-fluid mist, salt damage, etc.
Otherwise, there is a danger of fire.
*Be sure that the wall surface is a nonflammable material, such as steel
plate.
2. Wiring
WARNING
*Be sure to ground the unit.
Otherwise, there is a danger of electric shock and/or fire.
*Wiring work shall be carried out by electrical experts.
Otherwise, there is a danger of electric shock and/or fire.
*Implement wiring after checking that the power supply is off.
It might incur electric shock and/or fire.
*After installing the main body, carry out wiring.
Otherwise, there is a danger of electric shock and/or injury.
*Wait until DC bus voltage is discharged after power supply is turned
off.
Otherwise, there is a danger of electric shock.
............ p. 4-1
........... p. 4-1
........... p. 4-1
........... p. 4-1
........... p. 4-1
........... p. 4-1
........... p. 4-1
........... p. 4-2
............ p. 5-1
............ p. 5-1
............ p. 5-1
............ p. 5-1
............ p. 5-10

1-2
CAUTION
*Make sure that the input voltage is:
Three phase 200 to 220 V/50 Hz, 200 to 230 V/60 Hz
Three phase 380 to 415 V/50 Hz, 400 to 460 V/60 Hz
*Be sure not to input a single phase to a 3 phase type.
Otherwise, there is a danger of fire.
*Be sure not to connect AC power supply to the output terminals
[U (T1), V (T2), W (T3)].
Otherwise, there is a danger of injury and/or fire.
INPUT OUTPUT
Power supply
R S
(L1) UVWT (L2)
Note)
(L3) (T1) (T2) (T3)
*Fasten the screws with the specified fastening torque. Check so that
there is no loosening of screws.
Otherwise, there is a danger of fire.
*Be sure to install an earth leakage breaker.
The ground fault protection is designed to detect current flowing to the
ground upon power on. This function is to protect the inverter, not
people. Install the earth leakage breaker to protect against the ground
fault on wires between the inverter and the motor. (Use a breaker that is
very sensitive to high frequency current so as not to cause malfunction.)
*Be sure to set the fuse(s) (the same phase as the main power supply)
in the operation circuit.
Otherwise, there is a danger of fire.
*As for motor leads, earth leakage breakers and electromagnetic
contactors, be sure to use the equivalent ones with the specified
capacity(rated).
Otherwise, there is a danger of fire.
*Connection to wiring terminal must be reliabily fixed with two means
of support.
............ p. 5-2
............ p. 5-2
............ p. 5-2
............ p. 5-2
............ p. 5-2
............ p. 5-2
............ p. 5-2
............ p. 5-2

1-3
CAUTION
Input phase failure protection
(1) J300-U version inverter are provided with the phase failure protection on the power
supply.
(2) When a buzzer, lamp, noise filter or transformer is connected between the input power
terminals (L1, L2, L3) and input power fuses, input phase failure cannot be protected.
Power supply
R S
(L1) (L2) T (L3)
Fuse
(Bad example)
(Good example)
L
L
Noise filter
CAUTION
External or remote over load protection required, if multiple motors to
be connected.
For models J300-450LFU and -550LFU only , connect to branch
circuit protected at maximum 300% of output current rating.
Suitable for use on a circuit capable of delivering not more than 10,000
rmssymmetrical amperes,*** voltsmaximum,
(where *** = input voltage)
Alarm connection may contain harzordous live voltage even when
inverter is disconnected. In case of removing front cover for
maintenance or inspection, confirm that incoming power for alarm
connection is surely disconnected.
............ p. 5-4
............ p. 5-11

1-4
3. Control and operation
WARNING
*Be sure to turn on the input power supply after mounting the surface
cover. While being energized, be sure not to remove the cover.
Otherwise, there is a danger of electric shock.
*Be sure not to operate the switches with wet hands.
Otherwise, there is a danger of electric shock.
*While the inverter is energized, be sure not to touch the inverter
terminals even during stoppage.
Otherwise, there is a danger of electric shock.
*If the re-try mode is selected, it may suddenly restart during the trip
stop. Be sure not to approach the machine. (Be sure to design the
machine so that personnel safety will be secured even if it restarts.)
Otherwise, there is a danger of injury.
*Even if the power supply is cut for a short period of time, it may restart
operation after the power supply is recovered if the operation command
is given. If it may incur danger to personnel, be sure to make a circuit
so that it will not restart after power recovery.
Otherwise, there is a danger of injury.
*The Stop Key is effective only when the function is set. Be sure to
prepare the Key separately from the emergency stop.
Otherwise, there is a danger of injury.
*After the operation command is given, if the alarm reset is conducted, it
will restart suddenly. Be sure to set the alarm reset after checking the
operation command is off.
Otherwise, there is a danger of injury.
*Be sure not to touch the inside of the energized inverter or to put a bar
into it.
Otherwise, there is a danger of electric shock and/or fire.
*The STOP/RESET key works only when a function is set. Prepare an
emergency switch separately. The use of the STOP/RESET key as an
emergency switch may cause an injury.
............ p. 6-1
............ p. 6-1
............ p. 6-1
............ p. 6-1
............ p. 6-1
............ p. 6-1
............ p. 6-1
............ p. 6-1
............ p. 7-1

1-5
CAUTION
*Radiating fin and discharging resistor will have high temperature.
Be sure not to touch them.
Otherwise, there is a danger of getting burned.
*Low to high speed operation of the inverter can be easily set. Be sure
to operate it after checking the tolerance of the motor and machine.
Otherwise, there is a danger of injury.
*If a motor is operated at a frequency higher than 60Hz, be sure to check
the speeds of the motor and the machine with each manufacturer, and
after getting their consent, operate them.
Otherwise, there is a danger of machine breakage.
*Check the following before and during the test run.
Otherwise, there is a danger of machine breakage.
• Was the short-cut bar between +1 and + connected?
• Was the direction of the motor correct?
• Was the inverter tripped during acceleration or deceleration?
• Were the rpm and frequency meter correct?
• Were there any abnormal motor vibrations or noise?
• When overcurrent tripping or overvoltage tripping occurs during the
test run, increase the acceleration time or deceleration time.
4. Maintenance, inspection and part replacement
WARNING
*Be sure to turn off the power supply during maintenance and
inspection.
*After the power supply has been turned off, you must always wait 10
minutes so that DC bus capacitors can discharge then start maintenance
and inspection after the CHARGE lamp on the printed-circuit board has
gone out. (Immediately after the lamp has gone out, there will be a
residual voltage of about 50 V DC in the DC bus intermediate circuit.)
Perform the work after the CHARGE lamp has stopped flickering.
*Make sure that only qualified persons will perform maintenance,
inspection and part replacement. (Before starting the work, remove
metallic objects from your person (wristwatch, bracelet, etc.)
(Be sure to use tools protected with insulation.)
Otherwise, there is a danger of electric shock and/or injury.
............ p. 6-2
............ p. 6-2
............ p. 6-2
............ p. 6-3
........... p. 10-1
........... p. 10-1
........... p. 10-1

1-6
CAUTION
*When removing connectors, never pull the wires. (Wires for cooling
fan and thermal relay)
Otherwise, there is a danger of fire due to wire breakage and/or injury.
5. Appendix
WARNING
*When the inverter stops due to a trip with retry mode selected, the
motor restarts suddenly. Stand clear of the machine. Otherwise, you
may be injured. (Design the machine in such a way that persons are
protected against a restart of the machine.)
*If the retry mode is selected, do not approach the inverter unnecessarily.
It will be restarted suddenly after it trips/stops. (Design the inverter so
that the safety can be assured even in such a restart.) Otherwise, bodily
injury will result.
........... p. 10-1
........... p. A-15
........... p. A-16

1-7
6. Others
WARNING
*Never modify the unit.
Otherwise, there is a danger of electric shock and/or injury.
CAUTION
*Withstand voltage tests and insulation resistance tests (megger tests) are executed
before the units are shipped, so that there is no need to conduct these tests before
operation.
When conducting megger tests as a part of daily inspection, be sure that these tests are
only executed between the main circuit and the ground. Do not execute megger tests
on the control circuit.
Megohm-meter Megohm-meter
RSTRBPNUV FW •••PLCP24FM
(L1) (L2) (L3) (RB) (+) (–) (T1) (T2) W
(T3)
*Do not attach or remove wiring or connectors (including Digital operator and
Remote operator) when power is applied. Also, do not check signals during
operation. Otherwise, a trip may occur or a failure may be caused. To stop the
operation, be sure to use an operation instruction (FW,REV.) Do not turn
power off within three minutes after it is turned on, or vice versa.
*Do not stop operation by switching off the electromagnetic(Mgo) contactors on
the primary or secondary sides of the inverter.To stop the operation, be sure to
use an operation instruction (FW,REV.) Do not turn power off within three
minutes after it is turned on, or vice versa. (Bad example)
➤
➤
➤
➤
➤
Earth
leakage
breaker
Power
supply Motor
Turn ON and OFF
(Good example)
Mgo R, S, T
INV
U, V, W
FW
PV24
(L1) (L2)
ON,OFF
ON,OFF
(L3) (T1) (T2) (T3)
When there has been an instantaneous power failure, and if an operation instruction
has been given, then the unit may restart operation after the power failure has ended. If
there is a possibility that such an occurrence may harm humans, then install an
electromagnetic contactor (Mgo) on the power supply side, so that the circuit does not
allow automatic restarting after the power supply recovers. If the optional remote
operator is used and the retry function has been selected, this will also cause automatic
restarting when an operation instruction has been input, so please be careful.

1-8
CAUTION
*Do not insert leading power factor capacitors or surge absorbers between the
output terminals of the inverter and the motor.
Earth
leakage
breaker
Power
supply
Surge absorber
Motor
Leading power factor capacitor
INV
(L1)
R, (L2) S, (L3) T, (T1) U, (T2) V, (T3) W,
*Be sure to ground the grounding terminal, .
*When inspecting the unit, after turning the power supply off be sure to wait unitl
the CHARGE lamp beside the control terminal is off before opening the cover.
(If the lamp is lit or still flickering, then the internal capacitor’s residual voltage is still
dangerous.)
*MOTOR TERMINAL SURGE VOLTAGE SUPPRESSION FILTER
(FOR THE 400 V CLASS)
In a system using an inverter of the voltage control PWM system, a surge voltage
caused by the cable constants such as the cable length (especially when the distance
between the motor and inverter is 10 m or more) and cabling method may occur at the
motorterminal.
A dedicated filter of the 400 V class for suppressing this surge voltage is available,
Please order one.
*PROTECTION AGAINST NOISE INTERFERENCE FROM INVERTER
The inverter uses many semiconductor switching elements such as transistors and
IGBTs. Thus, a radio set or measuring instrument located near the inverter is
susceptibletonoiseinterference.
To protect the instruments from erroneous operation due to noise interference, they
should be installed well apart from the inverter. It is also effective to shield the whole
inverterstructure.
Addition of an EMI filter on the input side of the inverter also reduces the effect of
noise from commercial power line on external devices.
Note that external dispersion of noise from the power line can be minimized by
connecting an EMI filter on the primary side of inverter.

1-9
CAUTION
EMI filter Inverter
Power
source
Motor
U
V
W
U
V
W
L1(L1)
L2(L2)
L3(L3)
R1
S1
T1
R2
S2
T2
Terminal
for
grounding
Power
source
EMI
filter
Noise
Inverter
Motor
Noise
Remote operator
Piping
(to be grounded)
or shielded wire
Ground the
frame.
Completely ground the shield made
of metal screen, enclosed panel, etc.
with as short a wire as
p
ossible.
➤
➤
➤
(T1)
(T2)
(T3)
*EFFECTS OF DISTRIBUTOR LINES ON INVERTERS
In the cases below involving a general-purpose inverter, a large peak current flows on
the power supply side, sometimes destroying the converter module. Where such
situations are foreseen, or the paired equipment must be highly reliable, install an AC
reactor between the power supply and the inverter.
(A) The unbalance factor of the power supply is 3% or higher.
(B) The power supply capacity is at least 10 times greater than the inverter capacity
(and the power supply capacity, 500 kVA or more).
(C) Abrupt power supply changes are expected.
Examples:
(1) Several inverters are interconnected with a short bus.
(2) A thyristor converter and an inverter are interconnected with a short bus.
(3) An installed phase advance capacitor opens and closes.
In cases (A), (B) or (C), we recommend installing an AC reactor of 3% (in a voltage
drop at rated current) with respect to the supply voltage on the power supply side.
*When occurring an EEPROM error ( ), be sure to confirm the setting
value again.
*When setting b contact to the reverse command ([REV] terminal), the inverter
state automatically. Do not set to b contact.
GENERAL CAUTION
In all the illustrations in this manual, covers and safety devices are occasionally
removed to describe the details. When the product is operated, make sure that the
covers and safety devices are placed as they were specified originally and operate it
according to the instruction manual.

2. INSPECTION UPON UNPACKING
Before installation and wiring, be sure to check the following:
• Make sure that there was no damage during transportation the unit.
• After unpacking the unit, make sure that the package contains one inverter and one opera-
tionmanual
• Make sure that the product is the one you ordered by checking the specifications label on
the front of the cover.
2-1
If you discover any problems, contact your sales agent immediately.
J300 055 H F U
Series name
Structure type
F: with digital operator
(Semi-closed, open type)
Input voltage
L : Three phase 200V class
H : Three phase 400V class
Applicable motor capacity (4P.kW)
055: 5.5 kW
075: 7.5 kW
110: 11 kW
150: 15 kW
220: 22 kW
300: 30 kW
370: 37 kW
450: 45 kW
Description of Inverter Model
Version number
U : USA version
550: 55 kW
750: 75 kW
900: 90kW
1100: 110 kW
1320: 132 kW
1600: 160kW
2200: 220 kW
Contents of Specifications Label
Hitachi, Ltd. Made in Japan
HITACHI 055HFU
INVERTER
J300
Model abbreviation
(The example is for the J300-055HFE2)
INPUT OUTPUT
380-415V 3 Ph 50 Hz max:380-460V 3 Ph
400-460V 3 Ph 60 Hz Amps (CT) 13 A/(VT) 16 A
(CT) 5.5kW(VT) 7.5kW
DATE
1995 J300U-055H251LMFG. NO. NE15390
Output voltage
Rated output current
Maximum applicable motor (4P kW)
Production number
and factory control symbol
Input power supply,
phase, and frequency
Production year

3-1
3. APPEARANCE AND NAMES OF PARTS
3.1 Names of Parts
A set screw
Digital
operator Maincircuit
terminals
Wiring
holes
Cover
Controlcircuit
terminals
Charge lamp
(LED)
Blind cover
Front cover
Case

4-1
4. INSTALLATION
CAUTION
*Be sure to install the unit on flame resistant material such as metal.
Otherwise, there is a danger of fire.
*Be sure not to place anything inflammable in the vicinity.
Otherwise, there is a danger of fire.
*Be sure not to let the foreign matter enter such as cut wire refuse, spatter from welding,
iron refuse, wire, dust, etc.
Otherwise, there is a danger of fire.
*Be sure to install it in a place which can bear the weight according to the specifications
in the text (4. Installation).
Otherwise, it may fall and there is a danger of injury.
*Be sure to install the unit on a perpendicular wall which is not subject to vibration.
Otherwise, it may fall and there is a danger of injury.
*Be sure not to install and operate an inverter which is damaged or parts of which are
missing.
Otherwise, there is a danger of injury.
*Be sure to install it in a room which is not exposed to direct sunlight and is well
ventilated. Avoid environments which tend to be high in temperature, high in
humidity or to have dew condensation, as well as places with dust, corrosive gas,
explosive gas, inflammable gas, grinding-fluid mist, salt damage, etc.
Otherwise, there is a danger of fire.
NOTE : ENCLOSURE SIZE FOR 75 kW to 110kW
The inverters, 75kW to 110kW must be installed into an enclosure with dimmensions no
less than 183cm (72 in) by 183cm (72 in) by 60cm (24 in).
NOTE : ENCLOSURE SIZE FOR 132 kW AND BIGGER
The inverters, 132kW and bigger, are complied as recognizedcomponents.
Therse devices are intended for use in an overall ecclosure with an internal ambient of
40 degree C for variable torque rating or 50 degree C for constant torque rating maximum.
End product temperature testing should be conducted to verify sufficient forced air ventilation
is provided to maintain this ambient in room ambient of 10-40 degree C.
Based upon component level testing , end product temperature testing may be conducted at
any convenient room ambient in the rangeof 20-40 dwgree C, unless the room ambient in the
intended application exceeds 40degree C, in which case testing should be conducted at the
elevated ambient.
Enclosure internal ambient temperature should be measured above the drive on to the upper
left or right side. Temperature measurments on the drive itself should not be necessary.

4-2
For cooling purposes, be sure that the inverter is installed vertically. In addition, be sure that it
is separated from other components and walls. If foreign matter is introduced into the interior
of the inverter, this may cause malfunctions, so make sure that no foreign matter can enter it.
➤
➤
➤
➤
➤
➤
➤
➤ ➤ ➤
5 cm
or
more
5 cm
or
more
10 cm or more
(30cm or more)
10 cm or more
(30cm or more)
Flow of air
Wall
(a) (b)
NOTE:
Be sure that the wall surface is a nonflammable
material, such as steel plate.
Install the inverter vertically.
Do not install it on the floor or horizontally.
( ) is for 75 to 260kW CAUTION
Be sure to check the ambient temperature.
Place of installation Load characteristics Ambient temperature Applicable model
Within the enclosure Constant torque -10 to 50°C All models
(NOTE 1) Variable torque -10 to 40°C (NOTE 2)
NOTE 1: The inverter should be installed in a locked enclosure that meets the requirements in
IP4X.
The higher the ambient temperature inside the inverter, the shorter its life will be. If
a heat generating unit is used near the inverter, try to keep it as far away as possible.
Also, when installing the inverter in a box, be sure to carefully consider ventilation
and the dimensions.
NOTE 2: Each of inverters 22 kW to 260 kW must be installed in a locked enclosure.

4-3
➤
➤
➤
➤
Vent hole Cover (a nonflammable
plate such as an iron plate)
Precaution for installation and wiring
When executing the wiring work or another work, attach a cover on the vent hole (slit) on the top of the
inverter to prevent wire chips, weld spatters, iron scraps, or dust from falling into the inverter.
15 cm or more