[Al Skierkiewicz]

Guys,
There is no 'ground' on the robot. There is only power supply common. The power common is connected at the negative battery input terminal on the PD. This is the same point as the case of the Crio, the negative lead of everything powered by the PD, and the case of previous years cameras. None of these items should be electrically tied to the frame of the robot. That means at minimum the Crio and last year's camera must be insulated from the frame of the robot.