For PCW. I have 100's of 1N914's. And I'm going use some 12 volt coil 4pdt relays in din rail sockets, that when on will draw around 180 ma from a 12 volt supply. Thats well within the on ratings of a 7i76 output. Are the 1N914's enough to protect the 7i76 from the off edge back emf, or do I need to src some heavier current ratings than the 200 mills they are rated at? I'm bearing in mind the speed of these 1N914's compared to the many times slower common 1N4000 power diodes. Speed is likely the important item, but whats Peter got to say?
I am also thinking of using one of those same relays to start and stop the spindle coolant pump by driving it with spinena, since the pump is heating the water 20F or more if left on overnight. Anybody see anything wrong with that? Thanks a bunch. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emcemail@example.com https://lists.sourceforge.net/lists/listinfo/emc-users