Re: wiring geckos to stepper motors - common wires to where?

Dave,

Thanks for the link. It looks like I have an 8 wire motor wired in
Series. My motor use the term Unipolar. I guess Unipolar=Series
and Bipolar=Parallel??

Thanks,
Keith Clark


--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Dave Halliday" <dh@s...>
wrote:

>
> Try this:
>
> http://www.geckodrives.com/photos/Step_motor_basics.pdf
>
> You want pages 7,8 & 9 although the rest is a very good (and

necessary)

> read...
>
> Dave
>
> > -----Original Message-----
> > From: Keith Clark [mailto:mail@t...]
> > Sent: Saturday, January 07, 2006 8:00 PM
> > To: CAD_CAM_EDM_DRO@yahoogroups.com
> > Subject: [CAD_CAM_EDM_DRO] Re: wiring geckos to stepper
> > motors - common wires to where?
> >
> >
> > Alan,
> >
> > Thanks for the suggestion, but I tried to get to the white

papers

> > but the link on the www.geckodrives.com website is not active.
> >
> > I realize how the com is connected to the Campbell board from

the

> > geckos. There is a step, dir and com between the Gecko and the
> > Campbell.
> >
> > The question I have is about the 8 wires from the motor. 1 wire

is

> > for A phase, 1 for A' abd the next 2 are to be connected

together

> > and are called common. Then the next 1 is for B phase and the

next

> > B'. Then the next 2 are again connected together and labelled
> > common. That accounts for all 8 wires. I am assuming that the

wires

> > connected together are just to be left connected to themselves.
> > Only the other 4 wires for the 4 phases will connect to the

Gecko at

> > A,A',B, and B'. Does that sound correct?
> >
> >
> > Thanks,
> > Keith Clark
> >
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, Alan Marconett

<KM6VV@a...>

> > wrote:
> > >
> > > Hi Keith,
> > >
> > > DON'T connect the common wires together! Check out the "white
> > papers"
> > > on the Gecko website.
> > >
> > > Alan KM6VV
> > >
> > > Keith Clark wrote:
> > > > I am wiring the gecko drives with stepper motors with 8

wires.

> > The
> > > > unipolar wiring requires connecting 2 wires together and

these

> > are
> > > > labelled common. There is on pair for each phase. Where do

the

> > > > common wires from the motor go? I have a common from the

Gecko

> > drives
> > > > for each motor that goes to the Campbell board but I don't
> > believe
> > > > that is where the wire from the motor goes. Perhaps these

wires

> > > > labelled common just connect together at the motor and do

not go

> > > > anywhere else?
> > > >
> > > > Thanks,
> > > >
> > > > Keith Clark
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
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be a

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

there,

> for OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING

THEM.

> DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
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