Quote:
Originally Posted by CNettles11
I was assuming that they would be applying a constant voltage to the motor to keep it at a constant position for a while. You know what assuming does,  From what I've been told, the brake function of a motor controller shorts out the leads of the motor to take advantage of the motor's magnetism in order to hold the motor's position. |
A motor thats moving generates a current. In brake mode(you are correct) the controller shorts the leads of the motor, allowing the current generated by the motor to flow backwards back into that motor ... driving it the opposite direction and slowing the motor.
A motor thats not turning generates no current, and thus cannot stop (or hold in place) the motor.