On Sat, Aug 1, 2020 at 11:40 AM Matthew Herd <herd.m...@gmail.com> wrote:
> Thanks Gene, I hope you’re well also. I disconnected that grounding wire, > no difference observed in the ppmc.0.encoder.03.index behavior. The noise > seems the same both when spindle is running and stopped, with a tendency > strongly toward "true" than "false." Pulses seem to be both long and > short, but I’d guess they’re about 80-90% true. Not at all what I’d > expect, even with noise. > Should be easy to see now where the problem is. Disconnect the encoder cable and look at the actual wire with a real 'scope, not a software hal scope. Is the signal a clean quadrature when the spindle turns or noisy? If the signal is clean you know the problem is the interface card or a connector and if noisy the encoder itself is the problem Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
