Delta OVN fault code meaning
Delta / OVN
Series: AFE3000
DC overvoltage during operation
active front end
Meaning: Overvoltage detected on the internal high-voltage DC side during operation.
Possible causes
- Supply voltage too high
Source: AFE3000 Series User Manual (DELTA_IA-PQ_AFE3000_UM_TC_20260330) P112