On Fri, 9 Aug 2019 at 06:30, nkp216 . <[email protected]> wrote: > Question on servo tuning. > there is such an opinion: > > "I don't think deadband is useful > in velocity mode. You will always get dithering between adjacent > counts - deadband just makes it dither across a bigger discontinuity."
It isn't clear to me if we are talking about a velocity PID (velocity command out, velocity feedback in) or a position/velocity PID (velocity command out, position feedback in) I can see the statement quoted being true in the first case. It might well be true in the second case too. That's a post from a long time ago, but the fundamentals of PID have not changed much. -- 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
