Hitachi Sj7002 Owners Manual

SJ7002Series Inverter 
Instruction Manual
• Three-phase Input 200V Class
 Three-phase Input 400V Class
After reading this manual,
keep it handy for future reference.
Hitachi Industrial Equipment Systems Co., Ltd.
Manual Number: NB206XA October 2009
U.S. Version Models European Version Models
Cover

Phone: 800.894.0412   

SJ7002 Inverteri
Safety Messages
For the best results with the SJ7002 Series inverter, carefully read this manual and all of the 
warning labels attached to the inverter before  installing and operating it, and follow the instruc-
tions exactly. Keep this manu al handy for quick reference.
Definitions and 
SymbolsA safety instruction (message) includes a hazard alert symbol and a signal word, WARNING or 
CAUTION. Each signal word has the following meaning:
This symbol indicates HIGH VOLTAGE. It calls...

ii
General Precautions - Read These First!
WARNING: This equipment should be installed, adjusted, and serviced by qualified electrical 
maintenance personnel 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 mecha-
nism not supplied by Hita chi Industrial Equipment Systems Co.,  Ltd., and process line material 
are...

SJ7002 Inverteriii
CAUTION: 
a) Motor must be connected to protective ground via low resistive path (< 0.1Ω)
b) Any motor used must be of a suitable rating.
c) Motors may have hazardous moving parts. In this event suitable prot ection must be provided.
CAUTION: Alarm connection may contai n hazardous live voltage even when inverter is 
disconnected. When removing the front cover fo r maintenance or inspection, confirm that 
incoming power for alarm connecti on is completely disconnected.
CAUTION:...

iv
Index to Warnings and Cautions in This Manual
Installation—Cautions for Mounting Procedures
CAUTION: Be sure to install the unit on flame-resistant material such as a 
steel plate. Otherwise, there is the danger of fire................ 2–6
CAUTION: Be sure not to
 place any flammable mate rials near the inverter. 
Otherwise, there is the danger of fire. ............... 2–6
CAUTION: Be sure not to let the forei
gn matter enter vent openings in the 
inverter housing, such as wire clippings, spatter fro...

SJ7002 Inverterv
 
HIGH VOLTAGE: Be sure to ground the 
unit. Otherwise, there is a danger 
of electric shock and/or fire. .............  2–17
HIGH VOLTAGE: Wiring work shall be
 carried out only by qualified 
personnel. Otherwise, there is a da nger of electric shock and/or fire. .............  2–17
HIGH VOLTAGE: Implement 
wiring after checking that the power supply 
is OFF. Otherwise, you may incur electric shock and/or fire. .............  2–17
HIGH VOLTAGE: Do not connect wiring to an inverter or...

vi
CAUTION: Fasten the screws with the specified fastening torque in the 
table below. Check for any loosening  of screws. Otherwise, there is the 
danger of fire. .............  
2–20
CAUTION: Remarks for using ground faul t interrupter breakers in the main 
power supply: Adjustable frequency in verters with CE-filters (RFI-filter) 
and shielded (screened) motor cables  have a higher leakage current toward 
Earth GND. Especially at  the moment of switching ON this can cause an 
inadvertent trip of...

SJ7002 Invertervii
 
Warnings for Operations and Monitoring
WARNING: Be sure to turn ON the input power supply only after closing 
the front case. While the inverter is ener gized, be sure not to open the front 
case. Otherwise, there is the danger of electric shock. ...............  4–3
WARNING: Be sure not to operate el
ectrical equipment with wet hands. 
Otherwise, there is the danger of electric shock. ...............  4–3
WARNING: While the inverter is energized, be sure not to touch the 
inverter...

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Cautions for Operations and Monitoring
CAUTION: The heat sink fins will have a high temperature. Be careful not 
to touch them. Otherwise, there is  the danger of getting burned. ...............  4–2
CAUTION: The operation of the invert
er can be easily changed from low 
speed to high speed. Be sure check  the capability and limitations of the 
motor and machine before operating th e inverter. Otherwise, it may cause 
injury to personnel. ...............  4–2
CAUTION: If you operate a motor at a...

SJ7002 Inverterix
General Warnings and Cautions
WARNING: Never modify the unit. Otherwise, there is a danger of electric shock and/or 
injury.
CAUTION: Withstand voltage tests a nd insulation resistance te sts (HIPOT) are executed 
before the units are shipped, so there is no ne ed to conduct these tests before operation.
CAUTION: Do not attach or remove wiring or connec tors when power is applied. Also, do not 
check signals during operation.
CAUTION: Do not stop operation by switching O FF...