"andy pugh" <[email protected]> wrote in message news:can1+yzup6r0z-xnth1regfjh0sqdceg8mcsg-hym171i90i...@mail.gmail.com... > On 2 April 2013 09:19, propcoder > <[email protected]> wrote: >
> It is possible to control a 3-phase inverter bridge directly from a > Mesa card, the three-phase PWM generator and the HAL bldc component do > all that is required. Ok, then where to search for suitable motors, encoders? As I can see - I could use 7i39 alone, just need to figure out how to cope with encoder signals. Knowing that I don't need high encoder resolution, I can put low resolution encoder or use higher res and: a. make quadrature counter with latch and serial shift out or b. quad-in, count and divide and quad-out card or...? Or this is not good and I only can use higher-res encoders and mesa 7i43 and 7i39? > However, I doubt it makes sense to install home-brew drives in an > industrial setting, especially if the plan is to install, get paid, > and walk away. The company works on small batch orders. It owns quite big and growing number of machines and uses them on-demand (when there is such an order). They have to adapt and setup production quickly and prefer not to spend high sums of money. This means that a lot of machines will not work very hard and probably will stand much of their time not-working. ------------------------------------------------------------------------------ Own the Future-Intel(R) Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://altfarm.mediaplex.com/ad/ck/12124-176961-30367-2 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
