Delta Woc fault code meaning
Delta / Woc
Series: MH300
Short circuit in phase W detected before operation
AC motor drive
Meaning: A short circuit in phase W was detected during the output wiring check before AC motor drive operation.
Possible causes
- Motor wiring error
- Check whether faulty insulation in the motor wiring causes the output
- Short circuit
- Malfunction due to interference
- The motor cable wiring length is long.
- Increase the capacity of the AC motor drive.
- U / V / W Install a AC reactor on the output side.
- Hardware fault
- coc is caused by a short circuit or ground fault on the output side of the AC motor drive.
- B1 corresponds to U, V, and W; DC- corresponds to U, V, and W
- Corresponds to U, V, and W
Source: MH300 Series User Manual (DELTA_IA-MDS_MH300_UM_TC_20260505) P293