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Unread 12-02-2005, 10:25
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Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
FRC #0111 (WildStang)
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Re: breaker tripping on robot startup

Quote:
Originally Posted by Bleric
Alright, I'm just a programming monkey, so my knowledge about wiring is a little... sketchy, to say the least.

The thing is, every time we power up our robot, it trips the breaker panel. We can push the reset button, and everything works normally. Also, when we unplug every one of our motors, this does not happen - the panel is not tripped. (We only have our four CIMs for the drive train hooked up at the moment.) If we plug in any one of our CIMs, the breaker trips when we turn on the robot. (and works normally when we reset the breaker.) It's almost like the motors are drawing a huge amount of current right when we first power up.

Anyone know what might be causing this?
I think you are really meaning that the trip light on the breaker panel shows a tripped breaker when you first turn on. This may be a normal condition just hit the reset and practice. See what happens. This could be happening if you are starting up enabled and ready to go. The power on condition occurs when all the motors including a pump, are turned on at the same time. If you don't trip other times don't worry about it.
If it continues, suspect a short or defective breaker and fix the problem. IFI is always open for questions.
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Al
WB9UVJ
www.wildstang.org
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Storming the Tower since 1996.