Re: following error

["Ed Okerson" <eokerson-at-fw.telenic.net>]

You are correct, I changed the INPUT_SCALE values to make my X and Y axis
move 1 inch when commanded.  But isn't axis 2 the Z axis?  That is the way
it is labeled in the GUI.  I have not made any changes to the Z axis scales
as I don't actually have that part of the machine built yet!  I was simply
trying to get the X-Y part moving before I continued any further.

Ed Okerson

----- Original Message -----
From: "John Sheahan" <jrsheahan-at-optushome.com.au>
To: "Multiple recipients of list" <emc-at-nist.gov>
Sent: Tuesday, November 13, 2001 2:12 AM
Subject: Re: following error


>
> Ed
> it means the internal PID-like algorithm EMC uses
> has accumulated an error bigger than the error limit.
>
> You have probably (rightfully) changed the scale values to
> match your hardware,
> the gain and error terms will need tweaking
> to reflect that.
>
> There's a page in the handbook regarding freqmod tuning, that
> may give you some hints here.
>
> regards, john
>
>
> On Mon, Nov 12, 2001 at 08:17:53PM -0500, Ed Okerson wrote:
> >
> > Well, I got EMC to control the steppers. :)  When running the
> CDS.ngc that
> > comes with it, all seems fine for a while.  It runs down the first
> side of
> > the circle and comes across the bottom, then pulls the tool up and
> pops up
> > an error box that says "Axis 2 following error".  What the heck
> doesthat
> > mean?  I have no encoders hooked up to anything, and am running
> > steppermod.o.  Any suggestions?
> >
> > Ed Okerson
>