Hitachi WJ200-001S Instruction Manual page 222

Wj200 series single/three-phase inputs 200v/400v class

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The inverter control section can be powered externally with 24 Vdc as shown below.

This will allow you to read and write parameters using the keypad or

via communication (such as Modbus/RTU or with optional fieldBus

communication cards).

NOTE: You CANNOT use the ProDriveNext programming software when powering

the inverter in this way! It will also not be possible to drive a motor.

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