Kelly Controller wiring pwr/gnd

[mrfechetto]

I realize this is a fairly simple question but the wiring diagram isn't too clear on it and I would rather ask than to mess something up in the controller....

I have the following controller http://www.kellycontroller.com/mot/KellyKDUserManual_old.pdf (72v300a w/regen)

On the front panel there are 7 pins (m-, b+, b-, pwr, rev, tps, gnd). On the back panel there are 9 pins (pwm, rly, led, gnd, an1, an2, sw1, sw2, sw3).

I am using dc/dc converter for my 12v.

My question is: where on the controller do I connect the dc/dc (+) and (-)? I am assuming it is either the front pwr and/or back pwm for the (+) and either the front and/or back gnd for the (-).

I've been doing alot of searching around for user wiring diagrams and its almost as if people don't connect the controller to the 12v power supply or they assume its obvious where to make the connection and don't bother showing it in their diagrams. Either way I haven't seen anything that explicitly says how to wire it.

Thanks in advance,
Tony

 

[mrfechetto]

I've contacted Kelly Controllers on this matter and apparently the pwr on the front panel is a 72v input that should come directly from the batteries and is grounded from B-. The pwr pins on the back are 12v outputs and the ground pins on the front and back are returns from anything that is wired to the controller (throttle, relay, LED, etc).

I also found out that the controller can be used to power the relay coil from battery positive to controller B+. So a 72v to 12v DC-DC converter is not necessary with this controller.