Jeremy; On 2013-02-28, at 10:33 PM, jeremy youngs wrote:
> i did mean to say will do step gen without the daughter card :) > I really dont want to put a lot in this first gen control as i really... My story. Pre-coffee, so hope it makes sense. I had some conceptual difficulties with the 5i25, going from software stepper (driving a Gecko G540) to this drop in replacement. The main issues I had was in thinking about "input output pins". Basically, I loaded the "g540x2" image at startup. I had to stop thinking about pins at the DB25 connector, and concentrate on the functions - the output of the functions themselves actually drove the DB25 pins. The 5i25 can drive a G540 stepper controller, or it can drive one of the stepper/servo boards. (or, probably other things). The 5i25 does not need to be re-programmed to change what it is connected to, it is configured on startup with a "do this" parameter. Once I figured it out it makes sense, and I'm really happy with my configuration now. I purchased 2 5i25s, and one 7i76 (the stepper daughter card). One 5i25 is in place as a replacement for a dumb parallel port card. The other 5i25 and 7i76 is for a CNC lathe I'm putting together - I wanted spindle rotation reading for threading, and I believe that this combo will work well. Software stepper is a great way of getting a machine up and running, so no issues there. Adding the 5i25 allowed me to increase speeds while not getting "following errors" or RTAI errors, which did show up once in a while before. Hope this helps - down to get coffee. John A. Stewart. ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
