Re: ACS Microstepper Drives

[goetze@aps.anl.gov (Kurt A. Goetze)]

Guy Jennings said:
> 
> Just ran into a potential gotcha with the ACS SPD-3M Microstepper motor
> drive module.   It is NOT a drop-in replacement for the SPD-6U
> drive!!!   The SPD-3M is a bipolar drive and needs different connections
> 
> when used with a 6-wire motor.
> 
> Users beware!!!
> 

I guess I would like to know more about how your motor is wired up.  My
experience is that the SPD3M worked well as a drop-in replacement for the
unipolar StepPak drive (using a 6 or 8 lead motor).

Kurt Goetze
APS/XFD/Beamline Controls