I can borrow one.. How do your use them? On Fri, Aug 30, 2019, 12:31 AM Gene Heskett <ghesk...@shentel.net> wrote:
> On Thursday 29 August 2019 05:41:14 andrew beck wrote: > > > Hi guys > > > > I am having trouble with my step and direction pulses running my servo > > drives on my cnc mill. > > > > I did have them all working on the bench 2 weeks ago, but now I must > > have changed something when I installed the electrical panel on the > > machine and I am thinking that I may have gotten a bit stuck and have > > the wires wrong. I checked the pinouts at both ends and it looks good > > but I think it must be something simple that I have missed.. > > Do you have an oscilloscope? Troubleshooting such as this is much easier > with a nice faster than the eye display. > > > I can't even get a simple stepper motor going so the problem is not > > with the servo drives. The mesa board used to work and I haven't > > shocked it since and both leds look ok.. The board is not isolated at > > the moment and is connected with metal stand offs I didn't have any > > plastic handy. Not sure if that could cause issues.. > > It could, you may want to see if some fiber or plastic washers can be > found. The metal standoffs aren't generally a problem, but too large a > washer can short passing traces so they shouldn't be metallic. Put one > on each side of the board. > > > > Anyway any ideas let me know please. Hopefully it just needs a good > > nights sleep and I will find something in the morning. > > > > Ps one thing I would love to hear about is some good timing values for > > servo drives running step and direction. I would love to get from > > anyone who has some good values to use. > > I won't say because whats good for me might be bogus for yours of a > different make and revision, and those have 10/1 variations, depending > on who made the driver and how fast the opto-isolators used are. Asking > the driver maker is the best advice. Or see if your drivers are listed > in the wiki at wiki-linuxcnc.org. > > > > > > Regards > > > > Andrew > > > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_ > >campaign=sig-email&utm_content=webmail> Virus-free. > > www.avast.com > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_ > >campaign=sig-email&utm_content=webmail> > > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > Cheers, Gene Heskett > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
