How are these customers dealing with a stalled stepper, or is there any limits built in?
I know you should never have a stalled stepper, but you still need to plan for it anyway. On Thu, Feb 16, 2012 at 9:42 AM, Peter C. Wallace <p...@mesanet.com> wrote: > On Thu, 16 Feb 2012, Erik Friesen wrote: > > > Date: Thu, 16 Feb 2012 08:29:52 -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: [Emc-users] More control board questions > > > > How feasible is it to use the mesa 5i25 in a similar way to the universal > > stepper controller? IE.. Use hardware step generation + encoder > feedback? > > Its easy, there are number of our customers doing this with step motors or > step/dir driven servos. You just use a configuration with stepgens and > encoder > counters. Inside HAL the stepgens are set into velocity mode and PID loops > are > setup to so the PID output sets the step rate of the step motors or > step/dir > servos, basically emulating a velocity mode servo system. > > > (encoder_count, commanded_pos) --> PID comp --> stepgen_velocity_command > --> motor drive --> encoder_count > > > > > > Another ignorant question, why is the industry so inclined to isolated > IO? > > vs single board designed systems where everything is layed out properly. > > This just gets me, when trying to make a control system look neat, and > you > > have to use a hodge podge of different breakout boards, drivers, etc, > with > > a resultant rats nest of wires. > > > ------------------------------------------------------------------------------ > > 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 > > > > 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
