Hitachi WJ200 Series Instruction Manual page 218

Wj200 series single-phase input 200v class three-phase input 200v class three-phase input 400v class

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The power to the inverter control part can be supplied externally as shown below.

Except driving motor, it is possible read and write the parameters by keypad and via

communication even the drive itself is not powered.

By having ability inverter doesn't block the current flowing into itself when it is not

powered. This may cause the closed circuit when two or more inverters are connected to

common I/O wiring as shown below to result in unexpected turning the on the input. To

avoid this closed circuit, please put the diode (rated:50V/0.1A) in the path as described

Troubleshooting