On Sun, 23 Feb 2014, Sven Wesley wrote: > Date: Sun, 23 Feb 2014 17:03:11 +0100 > From: Sven Wesley <svenne.d...@gmail.com> > Reply-To: "Enhanced Machine Controller (EMC)" > <emc-users@lists.sourceforge.net> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Subject: Re: [Emc-users] Preferred sensors for Mesa cards, NPN or PNP? > > 2014-02-22 15:52 GMT+01:00 Peter C. Wallace <p...@mesanet.com>: >> >> >> for sinking inputs (like 7I70,7I76,7i77,7I84 field inputs) The best is NC >> PNP >> type. These will fail open (= limit) with short to ground or open wire >> faults >> >> Peter Wallace >> Mesa Electronics >> > > Dammit, I've already ordered NPN NC, should have checked the spec PDF... > Ah well, I'll order a another set then...
You can use NPN Proximity switches with the 7I77 but it requires external pullup resistors (say 2K 1W) > > /Sven > ------------------------------------------------------------------------------ > Managing the Performance of Cloud-Based Applications > Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. > Read the Whitepaper. > http://pubads.g.doubleclick.net/gampad/clk?id=121054471&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121054471&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
