Steve Blackmore wrote: >Is EMC aware of pulley ranges for spindle speeds? > > Somewhat.
>For example, my lathe has three ranges, > >Pulley 1 gives me 0-750 >Pulley 2 0 - 1500 >Pulley 3 0 - 3000 > >How would this affect spindle speed control? If I command S1000 in >pulley 2 my VFD expects 6.6 volts, but only 3.3V in pulley 3 range. > > I wrote a simplistic 2-gear component, called gearchange.comp. Its purpose is to do exactly what you're looking for - scale and clip the spindle speed output based on which gear is chosen. I believe it's used in the Tormach PCNC-1100 sample config. There is a PyVCP button which selects the acrive range. It could easily be extended for a 3-range gearchanger. I believe Stuart has also written a 4 or 5 gear change component, but I think his is more specifically suited for his machine (a powered gear changer with various sensors) - Steve ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
