Re: wire in parallel or series

Erie,

There really is no reason to do that. The performance "hit" on half-
winding vs. parallel is less than 2%. This is a near meaningless
difference because it will be washed out or buried by other effects
such as line voltage fluctuation.

The nice thing about 6-wire motors is their no-brainer connection to
a drive. Only one wire per phase as opposed to 2 for parallel and all
it takes is an ohmmeter to tell half-winding apart from full winding
when you have to puzzle-out a mystery motor. Witness the problems
trying to do that with a mystery 8-wire motor.

Mariss


--- In CAD_CAM_EDM_DRO@y..., "Shelbyville Design & Signworks"
<signworks@m...> wrote:

> jon,
> is it enough of a difference for an enterprising person to bring

out the

> additional
> 2 wires on my 6 wire NEMA 34 triple stack motors?
>
> Erie Patsellis
> Shelbyville Design & Signworks
> 1309 W. S. 7th Street
> Shelbyville, IL 62565
> (217)774-4444
> visit our website at www.shelbyvilledesign.com
> ----- Original Message -----
> From: "Jon Elson" <elson@p...>
> To: <CAD_CAM_EDM_DRO@y...>
> Sent: Thursday, September 05, 2002 12:16 PM
> Subject: Re: [CAD_CAM_EDM_DRO] wire in parallel or series
>
>
> > mszollar wrote:
> >
> > > I can wire my motors (8 wire) in series or in parallel. The only
> > > difference I can see is that parallel is 2x the current of

series.

> > > The specs look like the torque is the same.
> > >
> > > Any benefits of 1 wwiring scheme over the other?
> >
> > HOLDING torque will be approximately the same. BUT, the running

torque

> > at significant speed will be much higher, as the inductance will

be lower.

> > This allows the same power supply voltage to charge the windings

up to

> > rated current much quicker. hence, you get full torque up to a

much

> higher
> > speed, roughly about two times.
> >
> > Jon
> >
> >
> > Addresses:
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> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> >
> > OFF Topic POSTS: General Machining
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reach it if

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> > http://www.metalworking.com/news_servers.html
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> > http://groups.yahoo.com/group/jobshophomeshop I consider this

as a

> sister site to the CCED group, as many of the same members are

there, for OT

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