High pitched whining noise, no stepper movement January 28, 2018 06:28PM |
Registered: 6 years ago Posts: 2 |
Re: High pitched whining noise, no stepper movement February 04, 2018 12:53AM |
Registered: 8 years ago Posts: 195 |
Re: High pitched whining noise, no stepper movement February 18, 2018 01:54PM |
Registered: 7 years ago Posts: 3 |
^this ^Quote
Roger123D
The best way to adjust stepper current is with multimeter set on dc volts the negative probe connect to ground and the positive clipped to a small jeweller type screwdriver that when touched to adjustment pot gives a reading of 0.7 volts. Initially done without stepper then done with stepper then done while stepper is moving. This voltage may vary slightly if you are too high or too low you will have noise and no movement you need happy middle. You actually measure while turning. Note if current is too high too long an internal driver shutoff will occur get back to 0.7 let it cool down keep trying