Thanks Jim, I understand how to set up such a failsafe circuit. But in addition, I want the actual e-stop switch to activate and latch, so that regardless of whether the computer generates a fault condition, or I do it myself, I still have to manually release the switch before resuming operation.
Neil On Mon, Apr 12, 2010 at 10:39 AM, Jim Fleig - CNC Services <j...@cncservices.ws> wrote: > Hi Neil, > > Setup a failsafe circuit with the connection passing through the E-stop > contacts energizing a relay. If anything in the series circuit becomes open > (E-stop button, relay contacts in E-stop circuit, overtravel limit switch > contacts, etc.) the functions dependant upon that circuit being closed stop > functioning. > > Someone may have a schematic example to share. If not, email me and I will > send you an example. > > Have a good day, > > Jim > > > > ----- Original Message ----- > From: "Neil Baylis" <neil.bay...@gmail.com> > To: <emc-users@lists.sourceforge.net> > Sent: Monday, April 12, 2010 1:19 PM > Subject: [Emc-users] Emergency Stop switch > > >> I'm looking to source an e-stop switch. I have some already with the >> big red mushroom button that latches when you press it, and must be >> turned to release. This is good. But what I want is a switch that can >> also be operated by a signal from the computer. So if the computer >> detects an e-stop condition, the mushroom button would pop down, just >> as if I had pressed it by hand. I would drive it from a digital out, >> obviously. >> >> Does such a thing exist, and can anyone point me at a source? >> >> Thanks, >> >> Neil Baylis >> >> ------------------------------------------------------------------------------ >> Download Intel® Parallel Studio Eval >> Try the new software tools for yourself. Speed compiling, find bugs >> proactively, and fine-tune applications for parallel performance. >> See why Intel Parallel Studio got high marks during beta. >> http://p.sf.net/sfu/intel-sw-dev >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users > > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- http://www.pixpopuli.com ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
