Glenn I have a second encoder mounted to the x axis. I am going to write a component that will zero the two encoders once it is homed and then I will compare the two to see what is happening.
On 2013/05/05 04:19 AM, Glenn Edwards wrote: > I had somewhat the same problem with a closed-loop stepper motor system, > but it was not LCNC. I used a programmable digital counter to count > up-and-down pulses coming from the controller and from the encoders. Turns > out the controller was issuing extra pulses, but again the controller was > not LCNC (they will remain unnamed). Before the counter, I had arguments > with the controller engineers who kept pointing at 'lost' steps as the > problem, i.e. accusing the motor as not up to the task. The counter > was irrefutable and the controller engineers solved the problem within > day. A programmable counter is not expensive and easy to use and might > see things Halscope cannot. FYI. > > > On Sat, May 4, 2013 at 4:18 PM, Gregg Eshelman <[email protected]> wrote: > >> --- On Sat, 5/4/13, Marius Liebenberg <[email protected]> wrote: >> >>> From: Marius Liebenberg <[email protected]> >>> I run 2.5.2 on that machine. As I mentioned before, I did >>> change the >>> motor/encoder but the problem stays. I thought it might be a >>> damaged >>> encode because it only effects the feedback in one >>> direction. >>> Is halscope the only way to see what the cause could be? It >>> might be >>> difficult to see because the error is +/- 1% of the total >>> travel and in one direction only. >> What about the wire connection at the controller? Could even be something >> as mundane as a bad solder joint on the connector or terminal block. >> >> >> ------------------------------------------------------------------------------ >> 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 >> >> > -- 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): 130505-0, 2013/05/05 Tested on: 2013/05/05 11:40:17 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
