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Re: "Backdriving" Motors -- Safe for Victors?
Both the scenarios you describe should be fine based on our experience. Don't be suprised as you push the robot around that the control board lights up... however the Victors don't seem to have any problem handling this little bit of current.
I do suggest that you try moving the victor jumper from coast to brake, at least on the drive motors... not for any electrical reason, but simply if you are running an open-loop (no encoder speed feedback to the RC) control system that having that active braking seems to make driving the bot easier.
I would also check to ensure that the CIM involved in lifting the ramp will not backfeed on its own once the match ends and power is lost.
Good luck on keeping the smoke inside the Victors this year... we hooked one up backwards our first year and have been extremely cautious since... I still keep the burned out shell of it on my desk as a reminder to everyone.
Jason
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