F0771 fault in WEG CFW500 Drive indicates Filter Maintenance is needed. This means the running hours of the system have exceeded the programmed threshold, forcing a shutdown until the filter is replaced.
Cause:
Parameter P1050 is programmed for 2, and the total motor operation time shown in P1052 is above the value programmed in P1051.
Remedy:
Perform scheduled maintenance to replace the system filter. Reset the elapsed timer if required.
