My home and limit switches are separate. The limits (at both ends of all axes) are wires in series and drive the hardware interlock. One axis fault = they ALL stop. The home is its own switch and not super close to the limit sw.
Did it fault while homing or in normal operation? On Thu, May 9, 2013 at 7:04 PM, Norton Allen <al...@huarp.harvard.edu>wrote: > On 5/9/2013 6:31 PM, Stephen Dubovsky wrote: > > Depends on the machine. The factory limits on my supermax signal the > > controller AND also opens a contactor for the drives. You can override > the > > input to the control (now EMC) all you like but it still doesn't bring > the > > drives back up. You have to mechanically move off the limits (luckily > they > > left little knobs for that.) I thought about changing the factory wiring > > to allow the EMC override to work but I'll never be ~3000mi away... > > > > So, so you know if its a software only limit or does it affect other > > hardware interlocks too? > > I'm pretty sure they are software only--else how would the 'home' > function work? There is only a single limit input with the in and out > limits apparently wired in series. The home position is configured to be > some small distance from the in limit (but apparently not far enough!) > > > I was able to get the overrides to function on > > another machine so I think they work (that was 2.4.x). You could always > go > > into you hal and comment out the limit sw input (or negate it.) > > Ah! That is definitely worth a try. > > > > ------------------------------------------------------------------------------ > Learn Graph Databases - Download FREE O'Reilly Book > "Graph Databases" is the definitive new guide to graph databases and > their applications. This 200-page book is written by three acclaimed > leaders in the field. The early access version is available now. > Download your free book today! http://p.sf.net/sfu/neotech_d2d_may > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. This 200-page book is written by three acclaimed leaders in the field. The early access version is available now. Download your free book today! http://p.sf.net/sfu/neotech_d2d_may _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
