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