On 06/27/2015 01:44 PM, Jon Elson wrote: > I'm running a pretty stock 2.5.4 version of LinuxCNC on my > Bridgeport. The only thing I have changed is to add the > camera tab to Axis with camview. The motion system is my > PPMC analog velocity board set. I have lately started > getting following errors during slow motion. I at first > suspected a chip in the ballscrew, but then it started > happening on different axes. I lately have left Halscope > running, hoping to trap what is going on. Well, I finally > got it, and it is really strange! > > See http://pico-systems.com/images/false_error.png for the > Halscope trace. > > The selected trace is in white, the X axis following error > (pid.0.error). Trace 4 (purple) is amp-enable, and triggers > the capture on the falling edge. You can see the X > following error is quite small, and actually decreasing. It > is well below the following error threshold in the ini > file. I did get the "following error on axis 0" message on > the Axis screen. This can happen several times during a > machining session, seemingly at random.
What are your [AXIS_*]FERROR and MIN_FERROR values? Was the machine slowing down when the X axis f-errored, or was it moving at a constant slow speed? -- Sebastian Kuzminsky ------------------------------------------------------------------------------ Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical & virtual servers, alerts via email & sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
