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OK, I got one 1000amp controller assembled with a precharge resistor and relay onboard. So far I tested that the pwm signal makes it to the output of the hcpl-4506 optocoupler... PHEW! That means basically everything works like it should. Next I'll calibrate the voltage monitoring. The initial testing phase just about gives me a heart attack. I have no plan B. hahaha.
I also heard the precharge relay click closed. After "x" seconds, the main contactor closes, and then opens the precharge relay. No more emails about "what is with this precharge resistor?"! I'll just say, it's not important. It's allllll been taken care of. hahaha.
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