A0750 alarm in WEG CFW701 Drive indicates an unprogrammed Analog Input for the Main PID. This means the PID controller is active, but no analog input has been assigned to read the process feedback variable.
Cause:
- Parameter P0231 or P0236 or P0241 is not programmed in 5, 6 or 7.
Remedy:
Program the appropriate analog input parameter to option 5, 6, or 7.