A0770 alarm in WEG CFW701 Drive indicates Filter Maintenance is needed. This means the running hours of the system have exceeded the programmed threshold for filter replacement.
Cause:
- Parameter P1050 is programmed in 1, and the total motor operation time shown in P1052 is greater than the time programmed in P1051.
Remedy:
Perform preventive system filter replacement. Reset the elapsed timer if required.
