Re: [CAD_CAM_EDM_DRO] Servo only moving one way

Ok , now does the output change form 5v to 0v when you jog back and forth?
If it does then is something after the breakout board. Maybe the opto in the
Gecko is not responding .
If doe not change let me know.
Jim

----- Original Message -----
From: "INDECO" <indeco@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, March 11, 2004 3:24 PM
Subject: Re: [CAD_CAM_EDM_DRO] Servo only moving one way


> Sorry Jim,
> I was reading the wrong line on the meter.
> Your right it doesn't go any higher than 5v.
>
> I have double and triple check the wires...they are correct.
>
> Robin
>
>
>
> ----- Original Message -----
> From: <james_cullins@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Thursday, March 11, 2004 3:48 PM
> Subject: Re: [CAD_CAM_EDM_DRO] Servo only moving one way
>
>
> > Are you looking on the breakout board?
> > Are you grounding to the PCgnd by the parallel port connector?
> > do not connect the PCgnd to anything .
> > You should never read over 5v.
> > I would double check the wiring.
> > Jim
> > ----- Original Message -----
> > From: "INDECO" <indeco@...>
> > To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> > Sent: Thursday, March 11, 2004 2:34 PM
> > Subject: Re: [CAD_CAM_EDM_DRO] Servo only moving one way
> >
> >
> > > Jim,
> > >
> > > It goes from 5v to 30v never reaches 0v always carring at least 5v.
> > > When I jog (in Y axis) right the DIR light comes on and it reads 30v
> then
> > > when I jog left, the light goes out and it reads 5v.
> > > As for the X axis it will only move one way with both key strokes.
> > > What is 74hct541? Is it something I can fix...or will I have to have a
> new
> > > board.
> > >
> > >
> > > Robin
> > >
> > >
> > >
> > > ----- Original Message -----
> > > From: <james_cullins@...>
> > > To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> > > Sent: Thursday, March 11, 2004 2:55 PM
> > > Subject: 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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> > > > http://www.metalworking.com/news_servers.html
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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
> > > > List Mom
> > > > List Owner
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> > > > Yahoo! Groups Links
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> > > Addresses:
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> > >
> > > 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
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> > Addresses:
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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
> >
> >
> >
> >
> >
>
>
>
>
> Addresses:
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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
>
>
>
>