robert melville wrote: > I have just started to use EMC2 with a homemade > tabletop mill and like it a lot. However, here > is some behavior I have seen in another controller which I > find very convenient.Is there some way to get EMC2 to do > this also? > > Suppose I am running my XY-table in the positive > X direction and I hit the X axis limit switch. I would like EMC2 > to remember that I hit the limit while slewing positive in X and > *only* disable further travel in the positive X direction. Movement/jogging > in negative X would be allowed so that I could jog the > table off of the limit. > > Am I missing something here?
Internally, EMC's motion controller has separate inputs for + and - limit switches. If the + limit input is activated, EMC won't permit further motion in the + direction, and the same for the - input. If you have separate + and - limit switches, wired through separate physical input pins and to the motion controller's inputs, then EMC will do what you want. If you are running both inputs in through the same parport (or other I/O device) pin, then you have to connect both of the motion controller's inputs to the same pin, and both will be activated when you are on either limit. In that case, you need to click on the "override limits" button on the GUI. Regards, John Kasunich ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensign option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
