Quote Originally Posted by Karl_T View Post
, the servo starts turning even though its not commanded to (0 volts on MOCMD pin) so Galil KOs AMPEN when the servo is out of position?

If this is true, how do I stop motor rotation when servo is first powerred?

Karl
I must have cross posted.
If the motor turns when the input is zero, it means the balance pot is mis-adjusted, it should allow adjustment to zero rpm (null).
If you want to stop rotation on power up before anything is initialized, you can issue a MO or SP0 for initial commands.
If it runs away with a MO there is something else amiss, such as wiring problem.
Al.