On 6 April 2016 at 09:53, Marshland Engineering <marshl...@marshland.co.nz> wrote:
> The only way I can get any control over the travel is setting P = 0.5 which of > course makes the position accuracy poor. I am not sure that that necessarily follows. The P term is correct when it is correct, there isn't a target value. You should be able to correct steady-state errors by adding I. You may be able to damp the oscillations with a little bit of D (expect D to be a tiny fraction of P) -- 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, 1916 ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users