Thanks. I didn't think it was worded very well. Hopefully it makes enough sense to be usefull.
Use the motors rated voltage. No need for higher voltages as there's no load on the motor and it not rotating. It's only moving one position in half step mode to determine the "firing order".
If you use a higher than rated voltage and it's not current limited, the motor will make smoke, especially if it's not in continious rotation.
If ratings for the motor are unknown. Start with a low voltage, only hold the wires on for the minimum time it takes to see if there is a CW/CCW move. (test more than one wire in case you picked #2 & #4 on the first go, as you'll see no movement) . If you still see no movement, move to a higher voltage, or the motor is a dud.
I don't know how much overvoltage you could apply to a stationary stepper before it smokes. Not too much I expect, that's why they have ratings. |