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CONTROL CIRCUIT WIRING
Below is a basic example of the control circuit for the Hitachi WJ with the DH firmware and may differ from the actual configuration
please reference the provided electrical drawing. Please consult Detroit Hoist if you plan to make changes to the control circuit for
specific functions to ensure compatibility with the DH firmware. Please note that not all functions provided by standard Hitachi
manual are compatible with the DH firmware and the use of them may cause the VFD to become unusable or unsafe.
Internal 24V power supply.
1 - 7
24v digital inputs for command functions. 5.6mA
Terminal 4, 6, 7 can be configured for allowed functions.
COM for 24v digital outputs 11 & 12
24v digital outputs. 60mA max
AL0 (COM), AL1 (N.O), AL2 (N.C)
( not configurable )
Brake release relay SPDT | 250vac 5A(resistive) \ 250vac 1A(inductive)
0v / ground reference for all analog I/O’s
SN, SP
RS485 / Ezcom communication terminals. Used for Modbus or Ezcom
communication. Shielded twisted wire required and grounding of shield.
L / PLC 0V reference for internal 24V power supply and ground reference for I/O return.
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