Hitachi WJ200 Series Instruction Manual page 12
Wj200 series single-phase input 200v class three-phase input 200v class three-phase input 400v class
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Also See for WJ200 Series:
- Quick reference manual (131 pages) ,
- Instruction manual (30 pages) ,
- Installation manual (20 pages)
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CAUTION: Do not stop operation by switching OFF electromagnetic contactors on the primary
or secondary side of the inverter.
Ground fault
interrupter
Power
Input
When there has been a sudden power failure while an operation instruction is active, then the
unit may restart operation automatically 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 a Run command is active. So, please be
careful.
CAUTION: Do not insert leading power factor capacitors or surge absorbers between the output
terminals of the inverter and motor.
Ground fault
interrupter
Power
Input
When there has been a sudden power failure while an operation instruction is active, then the
unit may restart operation automatically 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 a Run command is active. So, please be
careful.
CAUTION: MOTOR TERMINAL SURGE VOLTAGE SUPPRESSION FILTER
(For the 400V CLASS)
In a system using an inverter with the voltage control PWM system, a voltage surge caused by
the cable constants such as the cable length (especially when the distance between the motor
and the inverter is 10m or more) and cabling method may occur at the motor terminals. A
dedicated filter of the 400V class for suppressing this voltage surge is available. Be sure to
install a filter in this situation.
L1, L2, L3
Inverter
L1, L2, L3
U, V, W
GND lug
Inverter
U, V, W
PCS
FW
Surge absorber
xi
Motor
Motor
Leading power
factor capacitor
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Troubleshooting
