2012/1/27 Peter C. Wallace <p...@mesanet.com>: > On Fri, 27 Jan 2012, Viesturs L?cis wrote: > >> Date: Fri, 27 Jan 2012 21:49:18 +0200 >> From: "[UTF-8] Viesturs L?cis" <viesturs.la...@gmail.com> >> Reply-To: "Enhanced Machine Controller (EMC)" >> <emc-users@lists.sourceforge.net> >> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> >> Subject: Re: [Emc-users] Servo tuning - wtf? >> >> Hello again! >> >> I tried searching my mailbox with more than 2 years of this mailing >> list in it for some "servo tuning for noobs" (actual keywords used >> were "servo tuning"), but found only 1 viable thread, which contained >> this link; >> http://www.newport.com/servicesupport/Tutorials/default.aspx?id=152 >> >> My problem is: >> I can tune servo motor to move smoothly up to ~3600 mm/min, which is >> ~1500 RPM for motor. >> In higher speeds at one moment motor stalls and oscillates. >> Where can I read, how to proceed to reach higher velocities? >> I have been playing with P and D parameters, but do not see any improvement. >> >> Viesturs > > > Whats is your servo thread period, and how many poles does the motor have? >
Servo period is default 1ms. Motors have 4 poles, motors have 2048 CPR (8192 PPR) encoders. Viesturs ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
