Re: wiring Gecko drivers

Robert, I am thinking I will have to upgrade to 210s why did you
use those instead of the 201s?

I understand the phase a and b are for one winding and the c and d
for the other winding. Be careful because it is easy to wire them
incorrectly and burn out the Gecko drive. We need to stay in touch
so we can help each other. Once I figure out how to make it work on
mine I will be glad to tell you what I did.

keith clark
clarkfamily5@...

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Robert Williams"
<rob.will@v...> wrote:

> I too have Sigma motors on BP series 1 cnc. My Gecko' are 210's. My
> knowledge is much less than Kieth Clark's.
>
> Connections are labled...
> phase A, phase B
> phase C, phase D
>
> PLEASE tell me how I can identify the phase/wires or which wires

not to use.

>
> Robert
>
> ----- Original Message -----
> From: "theokspindoctor" <mail@t...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Monday, August 16, 2004 8:05 PM
> Subject: [CAD_CAM_EDM_DRO] wiring Gecko drivers
>
>
> >
> > I am confused about how the motors should be wired. I have Sigma
> > motors on the Bridgeport with 4 internal windings. I am only

wiring

> > to 2 of the 4 leaving the 2 not connected.
> >
> > First question is whether it matters which 2 I choose to wire to

the

> > 201 Gecko drive. Should they be 2 across from each other or

next to

> > each other.
> >
> > Second question is since there are 4 terminals on the Gecko

drive to

> > connect to the motors the first two, labelled 3 and 4 recieve

wires

> > from one winding and the other two labelled 5 and 5 receive wires
> > form the other winding. Is that correct? To change direction

just

> > switch wires between 3 and 4 with just changes the polarity on

one

> > of the internal coils. Correct?
> >
> > The way the motors are wired now, as done by my hired installer,

the

> > motor windings selected are across from each other, but terminal

3

> > and 4 are connected to different windings instead of the same.
> > Seems to be wrong to me. The z axis motor is easy to turn when

the

> > power is off suggesting it is wired correctly but it turns

backwards.

> >
> > I can get all axes to move but only up to 20 inches per minute,
> > anything greater causes the motors to stall...
> >
> > Unfortunately Mariss is on vacation...
> >
> > thanks
> >
> > Keith Clark
> > clarkfamily5@c...
> >