Re: following error

["Darrell" <dgehlsen-at-earthlink.net>]

Set the axis 2 parameters the same as you have in axis 0 & 1 until you have
something connected. Then after you have Z connected, play with the settings.
Darrell

http://www.machinemaster.com


----- Original Message -----
From: "Ed Okerson" <eokerson-at-fw.telenic.net>
To: "Multiple recipients of list" <emc-at-nist.gov>
Sent: Tuesday, November 13, 2001 10:33 AM
Subject: Re: following error


>
> 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
> >
>
>