I have a candcnc MP3000 system that I had running perfectly. My drives are
applied motion's 3540M's which have opto isolation on the inputs. I had to do some rework to my table requiring removing the electronics. When I got around to reconnecting everything back, I mistakenly connected the drive interface card (MTA 150) backwards
the input and output were crossed. The steppers of course wouldn't move.
Rechecking I discovered my mistake and corrected it. Now the Z-axis only travels in one direction no matter which direction you jog. That ruined my whole day! X&Y axes work normally.


Thanks,