CAD CAM EDM DRO - Yahoo Group Archive

Re: new stepper motors wiring mess...

Posted by Keith Clark
on 2004-08-28 13:12:42 UTC
No, the resistors are not connected to the motor wirings but are
placed as instructed on the two current limiting terminals on the
Gecko drives specifically dedicated to setting the current to be
drawn by the motors. At least I know they are in the correct place -
one of the few things I am totally sure of.

Keith

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Andy Wander <awander@v...>
wrote:
> Keith:
>
> You are wiring the "current limiting" resistors to the terminals
on the
> Gecko, and not in series with the motor wiring, right? I think
that is what
> erie was referring to. The resistors should NOT be in series with
the motor
> leads.
>
> Andy Wander
> Verrex Corporation
>
>
> -----Original Message-----
> From: Keith Clark [mailto:mail@t...]
> Sent: Saturday, August 28, 2004 2:33 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring
mess...
>
> Erie, I have read the paper and discussed in detail the wiring,
> jumpers, capacitor, resistor size, Nema 42 jumper, multiplexer
> settings, standby, frequency compensation, slow speed pot
> adjustment - etc with Mariss at Gecko and still not working. I
have
> motors rated when wired "Series Bipolar" of 4.9 amps. Using the
> calculation in the Gecko manual requiring 110 kOhm current
limiting
> resistors. With the original Bridgeport motors I had been using
> 340KOhm resistors as set by Mariss and he finally said the motors
> were bad. Now about $2000 later and I am in the same boat. Any
> ideas would be appreciated as I am a sponge at this point.
>
> Keith Clark
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, erie <erie@s...> wrote:
> > ok, start from the beginning, are you saying you have resistors
in
> > series with the motors??
> >
> >
> > If so, Geckos are "Chopper" type drives, they limit current and
> any
> > additional resistance
> > will give you exactly the symptoms you describe. Download the
> white
> > paper from the
> > gecko site, print it out and READ IT!!!! Use the appropriate
> current
> > setting resistors on the drive and
> > then let us know how you make out.
> > erie
> >

Discussion Thread

Keith Clark 2004-08-27 23:42:20 UTC new stepper motors wiring mess... Keith Clark 2004-08-28 06:57:52 UTC Re: new stepper motors wiring mess ?fixed! james_cullins@s... 2004-08-28 07:27:19 UTC Re: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess ?fixed! Harvey White 2004-08-28 07:39:20 UTC Re: [CAD_CAM_EDM_DRO] new stepper motors wiring mess... Keith Clark 2004-08-28 07:40:16 UTC Re: new stepper motors wiring mess ?fixed! Harvey White 2004-08-28 07:40:47 UTC Re: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess ?fixed! R Rogers 2004-08-28 07:53:49 UTC Re: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess ?fixed! R Rogers 2004-08-28 07:54:27 UTC Re: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess ?fixed! Keith Clark 2004-08-28 11:09:53 UTC Re: new stepper motors wiring mess ?fixed! Keith Clark 2004-08-28 11:14:42 UTC Re: new stepper motors wiring mess... erie 2004-08-28 11:23:45 UTC Re: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess... Jon Elson 2004-08-28 11:26:17 UTC Re: [CAD_CAM_EDM_DRO] new stepper motors wiring mess... erie 2004-08-28 11:26:50 UTC Re: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess... Keith Clark 2004-08-28 11:32:49 UTC Re: new stepper motors wiring mess... Andy Wander 2004-08-28 11:47:45 UTC RE: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess ?fixed! Stephen Wille Padnos 2004-08-28 11:54:30 UTC Re: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess ?fixed! Andy Wander 2004-08-28 11:55:02 UTC RE: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess... Stephen Wille Padnos 2004-08-28 12:02:30 UTC Re: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess... erie 2004-08-28 12:22:49 UTC Re: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess ?fixed! Harvey White 2004-08-28 13:00:02 UTC Re: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess... Keith Clark 2004-08-28 13:08:08 UTC Re: new stepper motors wiring mess ?fixed! Keith Clark 2004-08-28 13:10:10 UTC Re: new stepper motors wiring mess ?fixed! Keith Clark 2004-08-28 13:12:42 UTC Re: new stepper motors wiring mess... Andy Wander 2004-08-28 13:14:32 UTC RE: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess ?fixed! Andy Wander 2004-08-28 13:15:41 UTC RE: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess... Keith Clark 2004-08-28 13:27:48 UTC Re: new stepper motors wiring mess ?fixed! erie 2004-08-28 13:31:07 UTC Re: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess ?fixed! Stephen Wille Padnos 2004-08-28 13:46:21 UTC Re: [CAD_CAM_EDM_DRO] Re: new stepper motors wiring mess ?fixed! metlmunchr 2004-08-29 10:05:10 UTC Re: new stepper motors wiring mess ?fixed! Keith Clark 2004-08-29 10:21:40 UTC Re: new stepper motors wiring mess ?fixed!