9/13/2012 6:48 AM | |
Posts: 8 Rating: (0) |
Dear all, I'm trying to repair a 55KW MM440 (6SE6440-2UD35-5FA1) with 1 blown up IGBT, P/N: BSM300GB120DLC_E3256, plus error code F0001. Attached is the pictures of damages. I repalce the damaged IGBT with BSM300GB120DLC and checked the other 2 IGBTs, they are okay. The Motor is okay too. I repaired all damages on the board and powered up the inverter. Error code F0001 disappeared but as soon as I wanted to start the motor, the IGBT which was gone before (Connected to X100), exploded again. I noted that there is an IC, P/N: A1458, in IGBT's control circuit which sounds like Op-Amp to me. Can this IC cause such problem? I would like to appreciate your kind help will Best Regards Fariborz AttachmentDamages&Repairs.pdf (269 Downloads) |
10/30/2012 9:12 AM | |
Posts: 3 Rating: (0) |
The firing circuit was defective or some other IGBT was damaged. A1458 is not an analog IC
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9/4/2014 4:50 PM | |
Joined: 9/3/2014 Last visit: 3/13/2019 Posts: 4767 Rating: (123) |
New question published by AutoGen_446199is split to a separate thread with the subject MM440 75kW IGBT Problem. Best Regards Min_Moderator |