Re: G320 Position Error Fault

Hi all,
I'am using 400 line count encoder lowering might help.
But Dan lowering acceleration rate won't help when sudden stop from
full speed.

Shadi

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Dan Mauch" <dmauch@...> wrote:
>
> One other thing you might try is to lower the acceleration rate.
> Dan Mauch
> economical 3D scanner software and kits
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> www.camtronics-cnc.com
> www.seanet.com/~dmauch
> ----- Original Message -----
> From: caudlet
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Sent: Wednesday, July 04, 2007 12:48 PM
> Subject: [CAD_CAM_EDM_DRO] Re: G320 Position Error Fault
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "shadi_salhab_78" <salhab@>
> wrote:
> >
> > Hi all,
> > I have been tunning my G320 servo drive for a big Fanuc motor every
> > thing went perfect , I can jog smoothly accelerating and
decelerating
> > to full speed with out any Position Error Fault LED lights .
> > The Problem arise when sudden stop happen ( when stopping a G00
> > command by pressing ESC on the keyboard ) the Fault LED lights
> >
> > The 128-+ counts are too little to stop a big Inertia motor !
> >
> > The Damping Trimpot is at full scale , Gain and limit Trimpots
3/4 of
> > full .
> > I reduced the full speed (from Mach3)it helped solving the
problem but
> > not a very practical solution !
> > What should I do ? Is there any way to increase the 128-+ counts
> > error or eliminate it ?
> >
> > Thanks,
> > Shadi Salhab
> >
> What line count encoder are you using? By dropping to a lower line
> count you will fault at a greater following error. It will cost you
> resolution but with gearing and leadscrews the steps per are probably
> small increments anyway. There is no way to adjust the 128 count
> number in the existing 320/340
>
>
>
>
>
> [Non-text portions of this message have been removed]
>