[arber333]

ARGH! 3x IGBTs are busted. One battery connector was reversed and i didnt figured until a little smoke came from main board.
Smoke originated from gate resistor on low transistor no 3. Main board reported undervoltage error.
When i connected main board again no errors were reported and precharge and main conatctor were latched normaly. Of course i didnt connect main voltage this time.
When i took it apart i found totaly shorted IGBTs. All three. They were test pieces but still i feel bad. I dont know about drivers yet.

Paul can you tell me the procedure that can show me if drivers work ok?
Could i just connect main PCB and run some routine that would give 50% duty on all gates so i can measure with scope?

I do have spare IGBTs, but i want to know if everything else is ok first.

EDIT: I powered up main PCB again and measured all contacts. What i found:
IGBT no 1 = -6V
IGBT no 2 = -2.3V !!! Huh?
IGBT no 3 = -6V
IGBT no 4 = -6V
IGBT no 5 = -6V
IGBT no 6 = -1.2V !!!! huh?

I also measured at zener voltage splitter and i get 11.75V between D54 and D55 and 10.2V between D50 and D51. Other voltages are 7.2V
Still need a way to check drivers?

EDIT2: DOH! I see why values are strange... i had my lab PSU set to 12V when i debugged PCB. It was late and i was not in a great mood....
Today i will put propper 24V on it and run "debug 1" command.

tnx