I also agree about this.
Nicklas Karlsson On Wed, 18 Mar 2015 12:43:16 -0500 "Steve Stallings" <steve...@newsguy.com> wrote: > If one is trying to minimize radiated interference from > a signal source, then grounding the shield at the source > end makes sense. > > My suggestion of grounding the shield at the consumer > of the signals was based on reducing the likelihood of > a hostile external noise source confusing the consumer. > > Steve Stallings > > > -----Original Message----- > > From: Przemek Klosowski [mailto:przemek.klosow...@gmail.com] > > Sent: Wednesday, March 18, 2015 11:12 AM > > To: Enhanced Machine Controller (EMC) > > Subject: Re: [Emc-users] VFD causing limits to trip. Huh? > > > > On Mon, Mar 16, 2015 at 11:34 AM, Peter Blodow > > <p.blo...@dreki.de> wrote: > > > Steve, > > > this is a good description of noise reduction by shielding. > > To make it > > > more exact, the shield should be grounded at the end where the lower > > > impedance is, mostly the signal source. > > > > This is opposite to what Steve said, which was to ground near the > > signals are consumed, which makes more sense to me because shield > > potentials, if any, have smaller chance of leaking through to the > > signal wires. > > >From the impedance point of view, I would also worry more about > > interference near high-impedance nodes rather than low-impedance > > nodes, just because smal currents result in larger voltages there. > > > > Can you summarize the rationale for your recommendation in the > > language of electromagnetics? > > > > -------------------------------------------------------------- > > ---------------- > > Dive into the World of Parallel Programming The Go Parallel > > Website, sponsored > > by Intel and developed in partnership with Slashdot Media, is > > your hub for all > > things parallel software development, from weekly thought > > leadership blogs to > > news, videos, case studies, tutorials and more. Take a look > > and join the > > conversation now. http://goparallel.sourceforge.net/ > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > ------------------------------------------------------------------------------ > Dive into the World of Parallel Programming The Go Parallel Website, sponsored > by Intel and developed in partnership with Slashdot Media, is your hub for all > things parallel software development, from weekly thought leadership blogs to > news, videos, case studies, tutorials and more. Take a look and join the > conversation now. http://goparallel.sourceforge.net/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
