IGBT Over Temperature Problem - CR4 Discussion Thread - GlobalSpec Generally speaking, if your VFD tells you exactly WHICH IGBT is overheating, it is the type that looks at each module individually If that's the case, it could be a defective IGBT, or as mentioned, a defective temperature sensor If the alarm is general and does not distinguish which module, it's more difficult to determine the issue
Failure of IGBT Semikrone Diode in the ABB ACS550 Drive Failure in the Drive is IGBT and Semikrone Diode, When Fault occurs Main MCB 40 Amps On input side trips Please look into the matter to resolve the problem at the earliest Waiting for your favorable Reply