I don't understand the advantage of having the limit switch in the e-stop chain.
Why not just use the "normal" limit switch route through the control? Linuxcnc didables the drive by removing the drive enable signal when a limit switch is tripped. ----- Original Message ----- On Tue, Feb 12, 2013 at 02:34:20PM -0500, Pete Matos wrote: > John, > That is about the clearest most logical response I could have asked > for. Quite honestly I am unsure if my machine has three switches per axis > as you described. I will have to check. It is definitely a PRO CLASS > commercial machine as you say but I am unaware of the actual limit design > of the original control. Lets assume for a minute tho that it does not > have a third switch for homing here. How would you say would be the best > limit setup in that case? Put the limit switches in the estop chain, and make yourself some reference marks and use index-only homing if you don't have home switches. Or, just add home switches. My real machine has a "limit override" momentary recessed button that routes the estop chain around the limit switches. If it's sitting on a limit you can hold it in, and come out of estop and jog carefully off the switch with the wheel. I feel pretty good about the setup, and it's mostly pre-retrofit wiring - that was the original control's scheme. ------------------------------------------------------------------------------ Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users -- ======================================== Todd Zuercher mailto:[email protected] ======================================== ------------------------------------------------------------------------------ Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
