On our current machine (the gantry plasma machine) we are using 7i42 buffer cards with a 7i43 card and a custom firmware load from Mesa which has 4 step/dir and 4 single ended encoder inputs. We built a small board that converts the differential signals from our encoders to single-ended inside the electronics cabinet.
I also have a small mill on which I used the 7i43 with a 7i47 daughter board. On that one I have three stepper motors (step/dir) and three differential encoder signals wired to it. Tom On Feb 17, 2012, at 7:24 AM, Erik Friesen wrote: > What are they using for breakout boards? I don't see anything from mesa > that really fits. ie encoder inputs and step/dir. > > I see reference in the 7i76 to a switching power supply, is that built onto > the board? I suppose 40v would overload it? > > On Thu, Feb 16, 2012 at 2:04 PM, Peter C. Wallace <p...@mesanet.com> wrote: > >> On Thu, 16 Feb 2012, Erik Friesen wrote: >> >>> Date: Thu, 16 Feb 2012 13:28:59 -0500 >>> From: Erik Friesen <e...@aercon.net> >>> 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] More control board questions >>> >>> How are these customers dealing with a stalled stepper, or is there any >>> limits built in? >> >> When you use encoder feedback, stalled step motor detection is automatic >> (it causes a following error) >> >> >> Peter Wallace >> Mesa Electronics >> >> (\__/) >> (='.'=) This is Bunny. Copy and paste bunny into your >> (")_(") signature to help him gain world domination. >> >> >> >> ------------------------------------------------------------------------------ >> Virtualization & Cloud Management Using Capacity Planning >> Cloud computing makes use of virtualization - but cloud computing >> also focuses on allowing computing to be delivered as a service. >> http://www.accelacomm.com/jaw/sfnl/114/51521223/ >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > ------------------------------------------------------------------------------ > Virtualization & Cloud Management Using Capacity Planning > Cloud computing makes use of virtualization - but cloud computing > also focuses on allowing computing to be delivered as a service. > http://www.accelacomm.com/jaw/sfnl/114/51521223/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users