A0766 alarm in WEG CFW701 Drive indicates a Dry Pump Detected. This means the inverter senses high motor speed with unusually low torque, suggesting the pump has lost fluid prime.
Cause:
- Parameter P1042 is programmed in 1, the pump is running faster than the speed programmed in P1043, and the motor torque is remaining below the torque value programmed in P1044 for the time programmed in P1045.
Remedy:
Verify fluid flow to the pump. Verify configurations for parameters P1042, P1043, P1044, and P1045.
