RE: [CAD_CAM_EDM_DRO] Re: Series/ Parrellel

Hi Jarrett,

Unipolar wound steppers are often called 4-phase. Bi-polar wound steppers
are called 2-phase.

Series/parallel only applies to bi-polar, you have no choice in uni-polar.

4 wire units are always bi-polar. 5 wire units are always uni-polar
(because the ct's of the coils are connected together). 6 and 8 wire
steppers can be connected either way.

Don't worry about the dielectric! You can wire your 8's either way!

Alan KM6VV

> -----Original Message-----
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Jarrett & Heidi
> Johnson
> Sent: Wednesday, November 30, 2005 10:18 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Re: Series/ Parrellel
>
> Can someone confirm for me that series or parrellel connections of
> steppers is in fact the same thing as two or four phase? I came across
> some steppers that are claimed to be 4 phase, however I've been told that
> you can also set them up as 2 phase? They are 8 wire unit's in a Nema 34
> frame. The documentation also claims a Dielectric strength of 500Vdc,
> whats that??
>
> Thanks
> Jarrett Johnson
>