Re: [CAD_CAM_EDM_DRO] Servo only moving one way

Robin if you have just a common volt ohm meter like a Radio Shack you can
test it.
Just read the voltage on the screw terminal for the Y axis Dir . It should
change form a 0 to 5v when you jog it.
If it doesn't and the LED is changing the 74hct541 is probably bad.
Let us know and we will make it right for you.
Jim

----- Original Message -----
From: "INDECO" <indeco@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, March 11, 2004 11:55 AM
Subject: Re: [CAD_CAM_EDM_DRO] Servo only moving one way


> Yes I am using Gecko drives with Bob Campbells Breakout board and Mach
2
> software.
> I have niether a logic probe or a oscilloscope to check it.
> However the direction light on the board is not lit up as the Y axis is,
> however the light on the Y only lights when I jog to the left then goes
out
> when I jog right. Is this right?
> The drivers do not fault, it just will not jog both ways in the X
> axis...both key strokes go same way.
> The Y axis seems to be ok. I have checked and double check the wires and
> they are correct.
> Could it be in Mach2 that I'm doing something wrong?
>
>
> Thanks, Robin
>
>
>
>
>
>
>
> ----- Original Message -----
> From: "Jon Elson" <elson@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Thursday, March 11, 2004 12:24 PM
> Subject: Re: [CAD_CAM_EDM_DRO] Servo only moving one way
>
>
> >
> >
> > INDECO wrote:
> >
> > >Hello all,
> > >
> > > I am having a little trouble figuring this one out...my X axis will
> only move one way.
> > >When I jog the X axis both key strokes move it the same way.
> > >Help if you can.
> > >
> > >
> > What type of drive are you using? I have to assume a Gecko 320/340,
since
> > you don't say. What software are you using? Does the Y axis work
right?
> >
> > The Gecko has a direction signal which determines which way it is to
move.
> > It sounds like the step pulse is getting through fine, but the direction
> > is not.
> >
> > Check your wiring, use a DVM, logic probe or oscilloscope to check the
> > direction
> > signal to see if it is changing. Geckos need a fair bit of opto current
> > to operate,
> > somewhere in the 10 - 15 mA range.
> >
> > Jon
> >
> >
> >
> > Addresses:
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> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
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timg@...
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[Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
you have trouble.
> http://www.metalworking.com/news_servers.html
>
> 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
> List Mom
> List Owner
>
>
> Yahoo! Groups Links
>
>
>
>
>