On 09/17/2013 09:40 PM, andy pugh wrote: > On 17 September 2013 19:48, Thomas Kaiser <c...@kaiser-linux.li> wrote: > >> I have to implement spindle speed control and tool changer for a lathe. >> I will do this in classic ladder. Should I put everything in one program >> or should I split it in two independent classic ladder instances, e.g. >> spindle.clp and toolchanger.clp. > > I don't think that spindle speed control is complicated enough to > require a ladder. > It basically comes down to linking motion.spindle-speed-out to a > pwmgen or DAC, optionally via a PID component if closed-loop control > is needed.
It is an old Schaublin lathe. No pwmgen, DAC or PID! It has a 3 phase motor which can be run in low or high speed and change direction. A "variator" which can adjust speed in a defined range and a gear for low or high speed. It is not very complicated, but I think no HAL component exists for this setup. Does one exist ? I have to turn on the spindle an adjust the "variator motor" to the right speed. And so on with the low/high speed of the motor and the gear for low/high speed. For me, classic ladder is the way to go. Thomas ------------------------------------------------------------------------------ LIMITED TIME SALE - Full Year of Microsoft Training For Just $49.99! 1,500+ hours of tutorials including VisualStudio 2012, Windows 8, SharePoint 2013, SQL 2012, MVC 4, more. BEST VALUE: New Multi-Library Power Pack includes Mobile, Cloud, Java, and UX Design. Lowest price ever! Ends 9/20/13. http://pubads.g.doubleclick.net/gampad/clk?id=58041151&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
