Just a thought:
Since the index pulse is only one PPR, does it keep working and is it readable right up to 10k rpm? If so, you could first read the index pulse; if speed> threshold, multiply index by encoder ppr and connect that to encoder in; if speed < threshold (-hysteresis?), connect main pulse to encoder input. I’m writing this having no idea what kind of hardware you have or if it’s even possible. > On Jun 19, 2020, at 10:43 PM, Jon Elson <el...@pico-systems.com> wrote: > > On 06/19/2020 10:30 PM, andy pugh wrote: >>> On Sat, 20 Jun 2020 at 04:05, Ken Strauss <ken.stra...@gmail.com> wrote: >>> >>> Obviously I'm not contemplating threading at 10K RPM! However, I'd like to >>> leave the encoder installed at all times which is why I'm concerning about >>> it surviving at high RPM. >> My guess would be that it won't explode, it will just stop counting. >> And that probably isn't actually a problem. >> >> Qou only really care about accurate counting at low speeds. >> > Well, I have a spindle RPM display on a PyVCP on my mill, it is nice to check > that I'm getting the right speed. > > Jon > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
