On Mon, 2011-12-26 at 03:22 +0530, himanshu bhatt wrote: ... snip > My VFDs can take > 0-10v .. i just need to syncronize their speed only. > 5i20 have 96 IOs so it is more than enough for all encoders etc. > is it possible by tweaking in HAL etc??? > if yes where to start? or any better solution?? > > Thanks, > Himanshu
This link may get you started: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Closed_Loop_Spindle_Speed_Control Maybe setup a PID for each VFD then feed the desired speed to each one. Or I believe the encoder component has a velocity output pin that could feed the other PID's. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA ------------------------------------------------------------------------------ Write once. Port to many. Get the SDK and tools to simplify cross-platform app development. Create new or port existing apps to sell to consumers worldwide. Explore the Intel AppUpSM program developer opportunity. appdeveloper.intel.com/join http://p.sf.net/sfu/intel-appdev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
