Hi I did check wiring. It was same as when machine work last time 8 month ago. I did remove all 3 motor drive from inside aluminum box and mount them on outside wall of same aluminum . Result. All axis working good. No uncontrollable motion of axis.
Maybe problem is that drive generate magnetic field that like induction create current on metallic box? I am using linze motor drive. I have them from 2004. Besides that they do not like to be inside metal box no problem for 14 years. I will make box from plywood . And see result. On Mar 25, 2018 5:29 PM, "Gene Heskett" <[email protected]> wrote: On Sunday 25 March 2018 15:02:45 John Kasunich wrote: > On Sat, Mar 24, 2018, at 5:54 PM, a k wrote: > > I use small tester. Which does not tell us a thing about what it can measure, please relate the make and model as some of us might recognize it. > > I measure supply 120 v ac. Thats another problem, the std line voltage has been 127 volts for several decades. I would at least compare what this one reads against a known good meter, because either your building wiring is wonkie, or that meter belongs in the trashbin, thats about a 5% error. > > Meter works. I won't give it credit for being accurate. > > Axis was moving by them self. > > THIS: > > Touch box with real ground and breaker turn off. > > Means you have something screwed up. > > STOP and figure out what it is before you kill yourself or someone > else. I'll second this. You have a serious, potentially lethal problem. Please get someone in there who can find and fix it. We aren't interested in reading about you in the obit columns of the local papers. > > Between box and real ground tester read 30 v ac > > Maybe that means your wiring error is on the secondary side of your > power supply transformer. -- 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) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------ ------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
