Do you have filters just prior to the input power on the AB Servo drives? I've also had problems with Teco servo drives backfeeding noise into the AC line and messing with Mesa boards. An input filter from AD fixed that problem as well.
Dave On 1/10/2016 6:44 AM, John Thornton wrote: > Well none of the suggestions about star grounding did any good. In fact > they made the problem worse than before, so bad I could not even get 2.6 > to run. Off this list I was sent the AB servo best wiring practices pdf > which explained how to reduce noise in a servo drive enclosure. I > followed the advise as much as possible and after removing all my ground > wire antennas I was back running with an occasional sserial error. The > short explanation is to terminate the shields to a ground plane as close > as possible to the point where you take the shield/drain wire from the > cable. I still have a cable bundle running to my switch box that is > parallel wires and I might replace that with some twisted pairs. Photos > at 11. > > JT > > ------------------------------------------------------------------------------ > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
