Frank, I have a little thing called a battery-box, that I build years ago (exept it has not got a battery, it just hooks in the +-15V of the drive). In any case its sole purpose is to generate a square wave with a sufficiently slow period that the table moves while I can observe the result on an oscilloscope. When I do not have that box with me I try to observe the steps of the A/D converter, but only on a well proportioned system do I manage to do the tuning properly. When the ration of the motor inertia and the reflected load inertia is way out, I do not manage at all.
The only thing I missed in the write-up was how to dimention the frequency compensation in current converter part of the drive, but thats normally not adjustable in any case. You just choose a drive that is designed to work with motors of a similar armature inductance. In any case on the EMC side I am not knowledgable enough to answer your question. I have just releated my experience. I do suggest you try out the simulation program, just to get a feel for the issue at hand. j. On Tue, Oct 11, 2011 at 8:15 AM, Frank Tkalcevic < [email protected]> wrote: > I opened the first pdf and it has an article on pid tuning. It suggests > applying a square wave command and tuning from that. How hard is it to > generate a square wave in emc? Will this require hal trickery or can it be > done with GCode? > > > > -----Original Message----- > > From: Jan de Kruyf [mailto:[email protected]] > > Sent: Tuesday, 11 October 2011 4:02 AM > > To: Enhanced Machine Controller (EMC) > > Subject: [Emc-users] all those who thirst knowledge. > > > > http://irtfweb.ifa.hawaii.edu/~tcs3/tcs3/0405_Servo_review/onaka_docs/ > > > > http://www.qxdesign.com/DownloadArea.htm > > > > enjoy > > > > j. > > > > ---------------------------------------------------------------------------- > -- > > All the data continuously generated in your IT infrastructure contains a > > definitive record of customers, application performance, security > threats, > > fraudulent activity and more. Splunk takes this data and makes sense of > it. > > Business sense. IT sense. Common sense. > > http://p.sf.net/sfu/splunk-d2dcopy1 > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > ------------------------------------------------------------------------------ > All the data continuously generated in your IT infrastructure contains a > definitive record of customers, application performance, security > threats, fraudulent activity and more. Splunk takes this data and makes > sense of it. Business sense. IT sense. Common sense. > http://p.sf.net/sfu/splunk-d2d-oct > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
