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 <g_ala...@yahoo.com> wrote: > --- On Sat, 5/4/13, Marius Liebenberg <mar...@mastercut.co.za> wrote: > > > From: Marius Liebenberg <mar...@mastercut.co.za> > > > 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 > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > -- Best regards, -- -- Glenn Rapid Converting LLC gl...@rapidconverting.com www.rapidgasket.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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
