2009/6/13 Lawrence Glaister <ve...@shaw.ca> > Hi Sven, > The 3 sensors are used to give A,B and index pulses. This form of > encoder yields full direction and speed information from the 2 > quadrature channels as well as a once per rev reference pulse. > For threading, you really only need the A channel and the index pulse, > but for rigid tapping, you also need the direction information provided > by the second quadrature channel. > The index pulse is used as the reference so that the multiple threading > passes all start in the proper position on the work. > > cheers >
Ah, I see. But shouldn't it be enough with two? One of A or B could be index as well, or am I swimming deep here? --S ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing 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
