how to check thyristors and igbt of faulty acs vfd any rating
i have acs-880-17a vfd which is faulty and not powreing up iwant to check its thyristors and igbt if they are working or not using multimeter.
please let me know the way how to check these
generally, as with any type of power semiconductor, you must verify that there are no short circuits between the power terminals, and obviously the command ones.
The correct procedure need to assume that you have the correct experience and the correct instrumentation to do it.
Very often it is cheaper to use the ABB service that is equipped, prepared and can provide an adequate warranty on the replaced parts.
Have you tried to contact your local ABB sales network to get in touch with their service? They are very prepared and competent technicians.
Hope this help you