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Unread 08-02-2017, 20:08
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GeeTwo GeeTwo is offline
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AKA: Gus Michel II
FRC #3946 (Tiger Robotics)
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Re: Motor Speed offset

Quote:
Originally Posted by Garrin View Post
Thanks for your guys replies. We took apart the gearboxes and found no problems in there. We also rewired the entire robot with new wires to make sure no issues were found there. When running the robot afterwards, we still have the same stopping problem on one side. We noticed a clicking sound, upon further investigation we found one of our Talon SR motor controllers status light while running was orange. And would then completely click off. After we stopped, the status light would click back on in time.

Any ideas what to try next?
OK, there's definitely something fishy on that Talon or something feeding it.

Try swapping the PWM cables between that Talon and the Talon which controls the other motor on the same gearbox. If the problem moves, it's your PWM cable, RIO, or software (in decreasing likelihood). If cable or software, the fix is easy and not too expensive, and hopefully obvious. If the RIO, your best bet for now is to move the control to another DIO port, both in software and hardware.

If the problem stays with the same Talon, try swapping it to another PDP port, and (separately) to another breaker.

Edit: Try swapping the motors on the same gearbox between the talons to make sure you don't have a motor overloading the breaker.

If none of these fix the issue, sounds like a bad Talon. Fixing that is probably beyond online advice. Replace it; if it's new, try to get the replacement from the vendor.
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