A345 / F346 / A348 / F349 / A351 / F352 IGBT P.U/P.V/P.W B1 High Load & Overload fault in WEG CFW900 Drive.
These codes indicate a High Load or Overload on Book 1 IGBTs. This means the Book 1 inverter section is delivering too much current, signaling a mechanical overload.
Cause:
Alarm / Fault of overload on IGBT 1 of phase U, V, or W.
- High current at the inverter output.
Remedy:
Reduce motor load or adjust acceleration parameters to lower active output current levels. Check drive sizing if current remains continuously high.
