Issues with the encoder, most likely electrical interference or a grounding problem. Are the encoder cables shielded, the motor power cables shielded, are they ran seperately?
----- Original Message ----- Hi All, I have a problem on a machine that is confusing me (not to difficult to do these days). It is a servo system using mesa 5i23 and 7i33 cards. I have calibrated the x axis and during testing I find that the x axis will go from the home position (using G0 x6000) to the correct distance. Then when I say (G0 x0) it will go to x-70. It has a linear overshoot across the range but just in one direction. Now from that same position if I go (G0 x6000) it will travel exactly 6000mm. So it would seem that the calibration figures are correct. I did the PID tuning and it is pretty close to perfect. Any suggestions where to look? -- Regards / Groete Marius D. Liebenberg MasterCut cc Cel: +27 82 698 3251 Tel: +27 12 743 6064 Fax: +27 86 551 8029 Skype: marius_d.liebenberg Skype Me^(TM)! <skype:marius_d.liebenberg?call> Get Skype <http://www.skype.com/go/download> and call me for free. --- avast! Antivirus: Outbound message clean. Virus Database (VPS): 130503-1, 2013/05/03 Tested on: 2013/05/04 09:08:41 AM avast! - copyright (c) 1988-2013 AVAST Software. http://www.avast.com ------------------------------------------------------------------------------ Get 100% visibility into Java/.NET code with AppDynamics Lite It's a free troubleshooting tool designed for production Get down to code-level detail for bottlenecks, with <2% overhead. Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap2 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users -- ======================================== Todd Zuercher mailto:[email protected] ======================================== ------------------------------------------------------------------------------ Get 100% visibility into Java/.NET code with AppDynamics Lite It's a free troubleshooting tool designed for production Get down to code-level detail for bottlenecks, with <2% overhead. Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap2 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
