RE: [CAD_CAM_EDM_DRO] Re: wiring geckos to stepper motors - common wires to where?

What is the make and model number of these motors?
Maybe someone on-list has the needed info.

Also, have you taken a multi-meter and actually tested the wiring to see
what wire goes where?
Use the low-ohms scale so you can tell what wire is what on a tapped
winding...

Dave

> -----Original Message-----
> From: notoneleft [mailto:CNCWoodworker@...]
> Sent: Saturday, January 07, 2006 9:40 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Re: wiring geckos to stepper
> motors - common wires to where?
>
>
> No, unipolar is not series. Unipolar uses 6 wires. You have to wire
> them either bipolar parallel, or bipolar series. You need to find a
> diagram for those motors. Wire them wrong, and you'll kill the geckos.
>
> Gerry
>
>
> >
> > 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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http://groups.yahoo.com/group/jobshophomeshop I consider this to 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........
bill
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