2009/10/7 Kirk Wallace <kwall...@wallacecompany.com> > On Wed, 2009-10-07 at 09:43 +0200, Sven Wesley wrote: > > 2009/10/7 Kirk Wallace <kwall...@wallacecompany.com> > > > If you ever find an odd function in EMC2, you can be sure Kirk uses it. > :) > > Kirk, what are the optointerrupters for? > > > > --S > > If you mean here: > > http://www.wallacecompany.com/machine_shop/Shizuoka/Shizuoka_Step_Drv-1a.png > (Short URL) http://preview.alturl.com/fmdb > > these are on the original stepper drivers. On the PC side, I have a > 74ls244: > http://focus.ti.com/lit/ds/symlink/sn74ls241.pdf > > that provides enough power to drive the LED in the opto-interrupter > (/coupler). > > It's an odd combination of this image: http://www.wallacecompany.com/machine_shop/Shizuoka/mpg_proto-1a.jpg <http://www.wallacecompany.com/machine_shop/Shizuoka/mpg_proto-1a.jpg>and the text "The PDF for the opto-interupters is here (H22L)<http://www.fairchildsemi.com/ds/H2/H22LOB.pdf>.", and I didn't really understand the combination. But opto couplers are nice, absolutely. If I understood your setup, You only have the EMC2 output signal, opto couplers, amplifiers and then the motors? Sounds like a really clean setup to me. How fast can you go?
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