A0786 alarm in WEG CFW701 Drive indicates a Low Level of the External PID 1 Process Variable. This means the external PID feedback sensor reading has dropped below its minimum programmed threshold.
Cause:
- Parameter P1075 is programmed in 1, and the External PID controller 1 feedback value is remaining below the value programmed in P1076 for the time programmed in P1077.
Remedy:
Check the process feedback sensor and loop line. Verify configurations in parameters P1075, P1076, and P1077.
