A0138 fault in WEG CFW500 Drive

A0138 alarm in WEG CFW500 Drive indicates the Profibus DP Interface is in Clear Mode. This means the Profibus master has instructed all slaves to drop to a safe or cleared state. 

Cause:

• The network master status is not in run mode.

Remedy:

Verify the network master status, making sure it is in execution mode (Run).