RE: [CAD_CAM_EDM_DRO] Re: Series/ Parrellel

It's my understanding that 4-phases just means that there are 4 separate
windings in the motor.

A) If you connect them in 2 series pairs, you get, in effect, a 2-phase,
center-tapped motor.

B) If you connect them in 2 parallel pairs, you also get a 2-phase
motor.

C) You can also run them as 2-phase motors using only 2 of the windings.
The unused leads should, in any case, be insulated.


I'm using some 8-wire motors on my mill, wired up per C) above. I drive
them with Gecko 201's.


Andy Wander
Verrex Corporation

-----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 1:18 PM
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


[Non-text portions of this message have been removed]



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