A0137 alarm in WEG CFW500 Drive indicates a DeviceNet Connection Timeout. This means the DeviceNet network stopped polling the inverter before the safety timeout expired.
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.
