Stuart Stevenson wrote: > > The scales are SONY scales with an MD10A interpolator on them. The > interpolator gives a max resolution of .5 UM. .5 micrometers is > 0.00002 inch. I don't know what the interpolator is configured for. It > can be configured for .5, 1, 2, 2.5, 4, 5, 10 UM. > > OK, then, that solves THAT problem. At .5 um you get 50800 counts/inch, which should be good enough for nice smooth movement. > > I have DAC output from the ppmc boards to the A/B ac servo amps. I > don't have motion yet. I am a lot closer. We will try to determine why > the amps don't output later today. Unless the ballscrews have a lot of slop, you should be able to make it run just on the linear scale. Maybe much over 2 thousandths of an inch would get to a lot of rattling or excessive use of deadband. I assume these amps have tach feedback?
Jon ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
