Couldnt agree more with Ben Potter comment about inverting stepgen signals . I pull my hair out trying to debug this, hundreds of test later i came to the same conclusion. The problem was on one axis only in mine too.. regards rick
2014-08-10 18:51 GMT-03:00 Ben Potter <[email protected]>: > Very late to this discussion. I had this problem about a month back, with an > incredible amount of frustration. > > In the end I found that on my G540 I had to invert the stepgen output. When > inverted, no problems, when noninverted - one axis only would slowly slip > regardless of step timings. > > I'm stuffed if I know _why_ inverting the step output would affect the > drives behaviour to this degree - but if all else fails... > > > -----Original Message----- > From: John Alexander Stewart [mailto:[email protected]] > Sent: 10 August 2014 22:21 > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] G540, 5i25, missing steps, once again. > > Yes! Success! > > setp hm2_5i25.0.stepgen.00.position-scale [AXIS_0]SCALE setp > hm2_5i25.0.stepgen.00.steplen 2500 setp hm2_5i25.0.stepgen.00.stepspace 2500 > setp hm2_5i25.0.stepgen.00.dirhold 2500 setp hm2_5i25.0.stepgen.00.dirsetup > 2500 > > worked, no axis slip over a 4 hour test. > > I think I'll set everything up with even more time, and call it a day (or, > 4 weekend days, to tell you how long I've been looking at this) > > Thanks all! > ---------------------------------------------------------------------------- > -- > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > > > ------------------------------------------------------------------------------ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
