hey guys just have a question about the carousel component I have a 80 tool carousel on my mazak horizontal 5axis
and i need to control it. i know the carousel component can be used with a stepper motor and it just needs one home switch and then calculates step and direction signals for any movement from there I have a couple of options here to make this work i could pull the current motor out which is a yaskawa inverter rated motor with a 5v differential encoder on the end(ready to plug into a mesa card). And then just replace it with a servo motor and use step and direction to control it and away we go. the downside of this is there is a spline on the original motor i don't really want to have to touch.. and the cost of a servo and driver approx 350usd the 2nd option is a expensive vfd that has 0 +-10v i am hoping that i can control that as a servo and the carousel component tells it what to rotate to for each tool. cost 300usd the 3rd option and the one i am hoping i can use is i buy a cheap vfd that has a encoder card for closed loop control (approx80usd) and just plug it into motor and wire encoder in to vfd and then back to mesa card. the problem is the cheap vfds only have 0-10v not +-10v so i would have to have a direction pin plus 0-10v. Andy would that be able to work ok? it means that i can't run a PID in linuxcnc on it i think. but it might work ok still. I know that i can get full servo-like control down to about 10rpm still and it works great. i use them on my other cnc mills for the spindle and they are great and provide pretty good spindle orientation definitely good enough to do toolchanges with no issue in about 10000 toolchanges so far. anyway let me know what you guys think just looking at options currently though want to chose some sort of option in the next week as we need this cnc mill going. i have jobs for it to do soon:) _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
