openinverter forum

I accidently reversed my HV polarity going to my contactors during my last bench test using only 36v. The precharge relay and ignition contactor activated, but It almost immediately blew a high current fuse. After discovering my stupid mistake, the system will no longer startup and activate the precharge relay and ignition contactor. All the low-voltage wiring seems fine as that is run of a separate 12v. Any insight on what is wrong? Did I fry the capacitors?

No damage done. After calming down I double checked everything and found a loose low voltage ground to the LDU control.