I worked on this quite a while ago (before emc2) and using step & direction converted to pwm along with a Mausch/Kulaga DRO card for encoder input. It worked then, and probabley is even better and easier now. I don't know if that dro card schematic is still available. Unfortunately my machine building project is on hold for now, but thats OK things have changed quite a lot. Today I'd just buy a Mesa card and use whatever motor drive/s that are available. It's nice to know that I can build them if I need to. Input/output conversion is rather easy so when I can get back to building my bigger machine I'm sure EMC can get'er done. My small machine still uses EMC 2.18 with steppers.
Yes, I'm still here Dale Larry Kopas wrote: > hello > > I am trying to build a h-bridge pwm driver for brush dc motor at 10 amp, > 80vdc. the mesa card provide a pwm output and direction output. do > I need a torque/current loop on my board using opamps, or just switching > motor voltage via h-bridge pwm is enough for emc servo loop. I have a > 500 count encoder on the rotor shaft. > > TIA > Larry > > > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys-and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > > > ------------------------------------------------------------------------ > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
