There are a few 5114 drivers up there now. Even if they are cw/ccw pulse driven I think I can just gate the step and direction signals out of emc to arrive at a format the Vexta wants.
However am I correct in assuming that the Vexta drivers are not constant current type drivers? Will I be missing out on some extra torque (as opposed to converting to a common bipolar motor with a modern controller based on the Allegro chip)? On Friday 11 May 2007 1:20 pm, Jon Elson wrote: > John Kasunich wrote: > > Jon Elson wrote: > >>Look on eBay for "super Vexta" drivers. Not all of them can do > >>step/direction, which I think they call "two pulse", vs. what > >>they call "one pulse", which is CW and CCW step lines. > >>Actually, it is pretty easy to convert for this, or maybe EMC > >>can now generate CW/CCW step pulses. > > > > EMC's software step generator "stepgen" can do CW and CCW step > > pulses. That is step type 1, which we call "up/down". (Normal > > step/dir is step type 0.) > > Excellent, I figured it could, but was too lazy to look! > There are a number of smaller, board-style Super Vexta drives > that take up/down only. Somebody was selling these steadily on > eBay last year. ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
