On Sat, Mar 20, 2010 at 03:57:02PM -0500, Jon Elson wrote: > If you look further, I think you will find there is NO tachometer in the > machine. The Fanuc controls synthesize this from the encoder signals.
The mesa hostmot2 driver has a good encoder velocity output that considers the time stamp of the last encoder event to give smoother output than d(counts)/dt. I'd just send that to a dac and see if it's good enough to keep the amp happy. If it is, you have a pretty cheap solution (just the cost of another 7i33). If that didn't just work, I'd quickly give up and fit real tachometers like some others have suggested, because I bet in the long run that is the best configuration. Chris ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
