Peter, >> Heres what I would check:
Can you get a HALScope plot of the step response? << Yes, but not until Monday when I will be back at the shop. >> Do you have velocity or torque mode amplifiers? (Torque mode amplifiers will typically require a higher sample rate and are tougher to tune) your .6" error even with a P of 20 suggests torque mode to me. << Velocity If it is of any value, although I know they are not directly comparable, the PID values when using the Galil controller were: P: 94.25 I: 0.6 D: 1005.63 >> What number of counts generates a full scale drive (+- 10V) with your current P setting? (Disconnect analog out from amps and measure voltage versus error counts) << Again I can get that for you on Monday. Thanks again, Eric ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
