Thread: [FTC]: Caution - Tetrix Motors burn out on Stall
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Unread 10-02-2009, 17:30
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Paul C. Tan., P.Eng.
AKA: Paul Tan
no team (Bolt Action)
Team Role: Mentor
  
Join Date: Dec 2005
Rookie Year: 2000
Location: Toronto
Posts: 61
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[FTC]: Caution - Tetrix Motors burn out on Stall
In case you haven't found out the hard way, stalling a Tetrix motor for even 2 seconds will burn it out.

Be CAREFUL even if you are only running it at 25% power. IF YOU HAVE PID control enabled (RobotC - PID box checked), the PID system will detect a stall and boost the power up to 100%. At which point after 2 seconds, you have a fridge magnet/paper weight instead of a motor.

I ended up making the rule for the team that we will NOT use the built in PID control for the robot. The danger of burning out a motor is just too great. (after burning out two motors, I had no choice)
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Paul C. Tan., P.Eng.
Coach - FTC Team 27 (now retired)
Coach - VRC Team 2027 (now retired)
Past Mentor - FRC Teams 188, 610, 1009, 2634
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