>> Viesturs, >> >> Honestly servo drives are servo drives ...... they are either tuned or not. >> >> What kind of interface do you have, analog, or step and direction? What >> I/O interface cards are you using if any? >> >> Are the drives operating in velocity or torque mode? >> >> Dave >> >> > hello, Dave! > > currently i am not using any I/O cards, i would like to use step/dir > mode, because the plan is to add 3 stepper motors to the system. > > operation mode of servo drives currently is velocity mode (at least i > think so) and it can [and is intended to] be switched to step/dir mode > (i found that in the manual of servo drive). > > do You mean that i have to pay more attention to configuring servo > drives rather than adjusting EMC settings for them? please, can You > explain me the most appropriate way to implement EMC controls - what > are the steps i should take? > > Viesturs > > >
If you are going to use those drives in step and direction mode then they will close servo themselves. But they still need to be tuned properly to function. There should be some tuning instructions and hopefully some software that comes with those drives (or you can get) to tune the drives. Usually you start out with the motor disconnected from anything but secured so it doesn't flop around. Then you run a tuning program and it will cycle the motor back and forth and it will analyze it's own response and set the tuning parameters for you. That is an autotune routine. If you drives are older you may need to adjust the tuning parameters yourself after running a "test move" and watching the response either at the motor shaft or hopefully on a graphical interface provided by the servo motor company via a tuning program. Once you get that done and the drive/motor is working you connect the machine to it and rerun the tuning program to tune the drive with the load attached. Be very careful as you don't want to damage your machine. I'd start with the "Stepconfig" program to setup EMC2. It is a great way to get things up and running pretty quickly. If you type "stepconfig" at a terminal window it should run. Dave ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
