On Fri, 9 Jul 2021 at 01:20, John Dammeyer <[email protected]> wrote:
> If I set it to 0.05 then the spindle does stop but now the PID isn't very > responsive. I have to add large amounts of P and I to get it to stabilize > quickly and at 100RPM it then surges I would expect a spindle PID to mainly rely on FF0 and I. (Set the FF0 to give the right speed at a mid-range point without any P, I or D) You could _try_ running the PID output through a limit block, so that a negative value can't get through, but the PID will still output a negative value, and might get "confused" if that has no effect. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
