Hello

I was wondering if anyone had any experience with the above mentioned stepper drivers. I was able to obtain 2 of them to use for my extruders using typical nema 17 motors. The motors work as I had them working with pololu a4988 drivers. I installed the DM422C drivers
and cannot get the steppers to turn. The steppers enable but will not rotate. Once enabled, the steppers make a high pitched noise. From experience, I thought that usually means that the coils are mismatched. However, I verified the groupings and they are wired correctly. I put the a4988 drivers back in to make sure and I confirm that I have them wired properly. I do not know what else to try and so will take any suggestion available.

Space.....