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Tripping circuit breakers

There are circuit breakers in:
  • The cortex - 
  • The power expander - 
  • In the motors - The motors are equipped with overload protection. This is in the form of a PTC device, which limits motor current based on time-current-temperature constraints.  The reset time is dependant on many different factors, but the main factor is motor temperature. If you place a cold motor in a stall condition, it will almost immediately pop the limiter. It will also almost immediately come back to life, once the load is removed. If you do this same thing with a "hot" motor, the reset time will be greatly increased.
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