Quote:
Originally Posted by MPaulHolmes
Wait on applying battery voltage. Make sure we are on the same page for contactor control.
First, it goes like this:
+12v ---------------------- contactor in (on board)
contactor out(on board) -------------- contactor coil PLUS
contactor coil ground ------------- +12v battery ground.
You will also need to run the angle offset test, and stuff like that.
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Well... i have it like this now:
+12V-->EV200 coil+ --> EV200- -->small relay contacts-->GND
while i command small relay trough PCB relay ===> relay PCB+ --> relay PCB- -->GND
==> is actually single wire from inverter, i am low on wires
so i connected gnd to inverter alu box.
The same for precharge relay. I measured continuity on all contacts and it checks out. It works. I had to add intermediate relay since EV200 needs a clear GND to latch. I guess economiser makes trouble. I saw the same problems with Johannes inverter. There i use one NPN transistor to open collector trigger small relay which in turn latches EV200. DOH!
Since there is another relay in the wiring i can use it as a safety and wire EMG button to remove GND from relay so EV200 goes out.