Quote:
Originally Posted by Ether
FWIW, inside the motor controller (unlike a servo) there is no connection to the PWM power pin.
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In addition, the PWM ground and signal inputs are connected to an opto-isolator. This is at least how it is implemented on the Jaguar for sure, I have seen evidence on the Talon that this is also true, and I would expect the same for the Victor. This means that ground on the PWM cable isn't the same ground as the speed controller ground. Which is a good thing, since it breaks what would otherwise be a nasty ground loop.