Re: [CAD_CAM_EDM_DRO] wiring Gecko drivers

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@...>
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@...
>