A0764 fault in WEG CFW500 Drive

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A0764 alarm in WEG CFW500 Drive indicates the Frequency Inverter is in Sleep Mode. This means the PID controller has put the drive into a standby state because the process demand dropped below the configured sleep threshold. 

Cause:

  • The main PID controller is active in automatic mode, and the motor speed remained below the speed programmed in P1036 for the duration set in P1037.


Remedy:

Informational alarm status indicating sleep mode has engaged. To adjust this behavior, modify parameters P1036 (sleep speed) or P1037 (sleep delay time).

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