A0163 fault in WEG CFW500 Drive

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A0163 alarm in WEG CFW500 Drive indicates a Signal Fault on AIx. This means the 4-20mA signal on the analog input has dropped below 2mA, indicating a broken wire or lost sensor connection. 

Cause:

  • Current signal on the analogue input AIx is interrupted or null.
  • Parameterization error on analogue input AIx.


Remedy:

Check current loop wiring on analogue input AIx for breaks or open circuits. Verify terminal screw contacts and parameter configuration settings for AIx.

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