F0237 fault in WEG CFW500 Drive indicates a DeviceNet Connection Timeout. This means the DeviceNet network polling stopped unexpectedly, causing the drive to trip on communication loss.
Cause:
- Problem with the network master status.
- Issues in the network installation, broken cable, or poor contact on the network connections/grounding.
Remedy:
Verify the DeviceNet master status. Check general cable routing, connection shield lines, and grounding terminals.
