Thread: 12V Voltage on Robot Frame (Perhaps because of a BaneBot)
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Unread 22-02-2014, 17:57
Dan252 Dan252 is offline
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Re: 12V Voltage on Robot Frame (Perhaps because of a BaneBot)
Quote:
Originally Posted by artdutra04 View Post
Removing the breakers probably won't work in this situation. The breakers are single-pole on (AFAIK) the high side of the circuit. Since they are reading a delta 12v between battery positive terminal and frame, it means the robot chassis is shorted to battery negative terminal somewhere. If a RS775 is case shorted, removing the breaker won't show the problem.

I would check first to make sure cRIO is isolated, then check to make sure the camera is isolated, then physically disconnect both wires leading to every RS775 (one at a time) from the M+/M- side of the speed controller, then check any custom sensors (such as Sharp IR sensors), as these in that order are the most likely causes of grounded frames.
What can be insulated in the camera? It's case is made of plastic, or you ment it's LEDs?

Anyway, our cRio is insulated and I'll have to wait until the competition day to check how is it without the motors connected.

Thanks
-Dan