Hello- I'm having some difficulty tuning my P, I, and D variables. I've used PID before in school, and understand how they are calculated, but I wanted to ask about the three terms I don't really understand...
I found in the wiki these explanations: *FF1 = 2.000 a velocity feedforward, helps reduce following error proportional to velocity * * FF2 = 0.25 an acceleration feedforward, helps reduce foll. error when accelerating* However I dont quite understand them- would someone be willing to maybe define the math behind these concepts? and also- is deadband the window over and under 0 volts that yields no movement? does this mean that you can kill steady-state oscillations by increasing deadband? Thanks again!!! -pat ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
