Until you home your machine after a power down/up of EMC the controller can't know where everything is until after the homing process. On power up EMC defaults to X0 Y0 Z0 etc at the present positions.
John On 1 May 2008 at 0:08, rtwas wrote: > Hello, > > I guess I'm using the wrong terminology. I'm calling "hard limit" the > table running up against the frame. > > I've also noticed that soft limits (in some cases) don't come into > play. Maybe it only comes into play after the first *home* setting or > after the first program is run. > > Robert W. > > > John Thornton wrote: > > >Even if you fire up the machine at the extreme of travel you still > >home it first which sets the home positions. Then you have no > >problem. > > > >John > > > >On 30 Apr 2008 at 13:49, rtwas wrote: > > > > > > > >>Hello, > >> > >>Stephen Wille Padnos wrote: > >> > >> > >> > >>>I don't think you can disable soft limits, you'd have to make a > >>>config with larger limits than your machine actually has. I > >>>wouldn't recommend that unless you're pretty sure the machine can't > >>>get hurt if an axis slams into a limit at full speed. > >>> > >>> > >>> > >>> > >>I think you might be able to see my quandary though. If you for some > >>reason one kills emc2 at any extreme in travel, the next time it > >>comes up you find you are trapped on one side by a hard limit, and > >>the other by a soft limit. You can't move the table. If it were not > >>for the fact that I had a small negative value beyond home, I'd have > >>not been able to move the table at all without manually moving the > >>lead screw by hand. > >> > >>Robert W. > >> > >> > >>-------------------------------------------------------------------- > >>-- --- This SF.net email is sponsored by the 2008 JavaOne(SM) > >>Conference Don't miss this year's exciting event. There's still time > >>to save $100. Use priority code J8TL2D2. > >>http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.c > >>om /javaone _______________________________________________ > >>Emc-users mailing list [email protected] > >>https://lists.sourceforge.net/lists/listinfo/emc-users > >> > >> > >> > > > > > > > >--------------------------------------------------------------------- > >---- This SF.net email is sponsored by the 2008 JavaOne(SM) > >Conference Don't miss this year's exciting event. There's still time > >to save $100. Use priority code J8TL2D2. > >http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.co > >m/javaone _______________________________________________ Emc-users > >mailing list [email protected] > >https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > > > > ---------------------------------------------------------------------- > --- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference > Don't miss this year's exciting event. There's still time to save > $100. Use priority code J8TL2D2. > http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com > /javaone _______________________________________________ Emc-users > mailing list [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
