Maybe we need some more information. What kind of drives and motors are you using? What kind of control inputs are the drives using (analog, digital, velocity, torque, position)?
----- Original Message ----- From: Viesturs Lācis <[email protected]> To: Enhanced Machine Controller (EMC) <[email protected]> Sent: Thu, 20 Dec 2012 08:17:49 -0500 (EST) Subject: Re: [Emc-users] Servo error 2012/12/20 Claude Froidevaux <[email protected]>: > Are you sure the encoder work (you can read position change ?, and not > only +- 1 incr.) See my first message for this sentence: "LinuxCNC receives encoder signal and reports the actual position of the motor - it stops the run, when ferror is exceeded." BTW in meantime I started to torture another joint - I am now jogging it back and forth and trying to work out pid parameters and one strange thing is that sometimes in direction to negative end of joint (and I have observed that only in this direction) joint continues to travel at previous speed after the button is released and then in a second or two it would suddenly stop the motion and start to respond to any new jog commands. I do not receive any warning messages about realtime issues. All the time encoder tracks the position correctly - if I bring it back to 0, it is actually in the same spot (plus minus half a milimeter, I cannot measure more precisely) on the machine. -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users -- ======================================== Todd Zuercher mailto:[email protected] ======================================== ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
