Hitachi wj200 series Quick Reference Manual page 4

2. Wiring
- Be sure to ground the inverter. Otherwise, you run the risk of electric shock or fire.
- Commit wiring work to a qualified electrician. Otherwise, you run the risk of electric shock or fire.
- Before wiring, make sure that the power supply is off. Otherwise, you run the risk of electric shock or
fire.
- Perform wiring only after installing the inverter. Otherwise, you run the risk of electric shock or injury.
- The inverter must be powered OFF before you change any of the slide switch settings. Otherwise,
you run the risk of electric shock or injury.
Make sure that the voltage of AC power supply matches the rated voltage of your inverter.
Otherwise, you run the risk of injury or fire.
- Do not input single-phase power into the 3-phase inverter. Otherwise, you run the risk of fire.
- Do not connect AC power supply to any of the output terminals (U, V, and W). Otherwise, you run
the risk of injury or fire.
- Connect an earth-leakage breaker to the power input circuit. Otherwise, you run the risk of fire.
- Use only the power cables, earth-leakage breaker, and magnetic contactors that have the specified
capacity (ratings). Otherwise, you run the risk of fire.
- Do not use the magnetic contactor installed on the primary and secondary sides of the inverter to
stop its operation.
- Tighten each screw to the specified torque. No screws must be left loose. Otherwise, you run the
risk of fire
- Before operating slide switch in the inverter, be sure to turn off the power supply. Otherwise, you run
the risk of electric shock and injury.
- Please make sure that earth or ground screw is tightened properly and completely.
- First, check the screws of output terminal (U, V and W) are properly tightened, and then tighten the
screws of input terminal (R,S and T)
3. Operation
- While power is supplied to the inverter, even if the inverter has stopped, do not touch any terminal or
internal part of the inverter, insert a bar in it, check signals, or connect or disconnect any wire or
connector. Otherwise, you run the risk of electric shock, injury or fire.
- Be sure to close the terminal block cover before turning on the inverter power. Do not open the
terminal block cover while power is being supplied to the inverter or voltage remains inside.
Otherwise, you run the risk of electric shock.
- Do not operate switches with wet hands. Otherwise, you run the risk of electric shock.
- If the retry mode has been selected, the inverter will restart suddenly after a break in the tripping
status. Stay away from the machine controlled by the inverter when the inverter is under such
circumstances. (Design the machine so that human safety can be ensured, even when the inverter
restarts suddenly.) Otherwise, you run the risk of injury.
- Do not select the retry mode for controlling an elevating or traveling device because output
free-running status occurs in retry mode. Otherwise, you run the risk of injury or damage to the
machine controlled by the inverter.
- If an operation command has been input to the inverter before a short-term power failure, the
inverter may restart operation after the power recovery. If such a restart may put persons in danger,
design a control circuit that disables the inverter from restarting after power recovery. Otherwise,
you run the risk of injury.
- Prepare the additional emergency stop switch in addition to the stop key of the integrated operator
and/or the optional operator. Otherwise, there is a danger of injury.
- If an operation command has been input to the inverter before the inverter enters alarm status, the
inverter will restart suddenly when the alarm status is reset. Before resetting the alarm status, make
sure that no operation command has been input.
WARNING
CAUTION
WARNING
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