On Monday 04 May 2015 22:30:44 jim wrote: > Just a suggestion ,you might try running lcnc but power down your > drives. I had similar problem ,it turned out to be rfi coming in on > the limit switch wires.
Difficult to do as the drive power, and the breakout board power is all on the same power switch, and in one box. But I have a scope laying there handy so I'll certainly take a look at the limit wiring with it tomorrow. IIRC the grounding is to the star ground in the box. However, it is not shielded cable, but that crappy miniature zip cord the shack sells for small speaker runs. 22 or 24 gauge. Using a C1G breakout board, which has leds on everything, I'd think the home switch led would flicker if the noise was that bad. I haven't really stood and stared at it though. The switches are configured N.O. so the circuit is pulled high. A small capacitor to gobble up some of the noise might be in order. But I'll look at the noise. Another item. These drivers current reduce to about half when just sitting there. And its as likely to lockup then as when its actually running a program & the driver is up to full current. Thanks Jim, I'll report what I find tomorrow. [...] 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> ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
