On Sun, 2011-11-06 at 21:28 -0800, Kirk Wallace wrote: ... snip > EMC2's e-stop out signal should be in the > loop as peer, but the loop should be the mechanism that breaks to power > to the dangerous bits. You might also look into a charge pump which can > monitor a PC or software fault. > http://wiki.linuxcnc.org/emcinfo.pl?About_Charge_Pumps > > That's what comes to mind so far.
I read a little more from your website. I see your chicken and egg problem, even with the independent loop I would think the VFD's fault relay would be open until the VFD powers up, but you can't power up until the loop is closed. Obviously, I don't have my VFD's set up for e-stop, but I been meaning to :) -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
