A0138 fault in WEG CFW500 Drive

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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).

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