Hello, I am using an arduino to control a brushed 20V universal motor via PWM. Based on a position sensor the motor will turn either CW or CCW until the desired position is reached via PID control. The direction and the PWM work well except when a 0 PWM is being called. The brushed motor will slowly turn when the PWM is zero. I do not hear any high frequency noise coming from the motor so it is most likely a DC bias or some sort of voltage leak through. I measured the voltage at the motor terminal and it was 0.4 to 0.6 V. Did i configure my MD30C incorrectly or did i end up with a defective board?
Thanks,
Jason