> Frank Tkalcevic wrote: > >> How do you generate your step pulses? When I was tunning, I would keep the >> machine on and do an MDI move. This doesn't work too well when the tuning >> is so bad it faults when you enable the machine. >> >> Hmm, looks like I missed part of your question. If it is faulting immediately, there may be a reversal of the motor wires, or some other reason the servo diverges, when it is supposed to converge. I show that sort of response in one of the pictures on my tutorial. If you turn the gain down, then you may be able to keep it from going wild immediately. I have software-controlled following error in EMC, not in the drive, so I can set it quite wide when starting out.
Jon ------------------------------------------------------------------------------ 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
