Jon, siggen is very nifty. Thanks. I spent some time adjusting Z parameters yesterday. A change of P from 300 to 550 has made the servo motor a lot stiffer, and now the best I can do by hand, is move the Z axis by about 0.0003" or so. I can live with it.
So, what would you say, does velocity mode provide in extra benefits? Precise speed control at low speed? i On Thu, Sep 16, 2010 at 12:03 AM, Jon Elson <[email protected]> wrote: > Igor Chudov wrote: >> Jon, thanks. First things first I will try to improve the Z axis >> response while staying within the torque mode, just so that I do not >> switch back and forth too much. I will try to increase P and will >> report what happens. >> >> As for velocity mode, I will proceed carefully with this. Thanks for >> mentioning putting square waves as the input to the amp. The AMC >> manual talks about the same thing. I have a wavetek square wave >> generator and could use it. But that would probably come later. >> > No, it is much easier to use the HAL component "siggen" and connect it > to the > PPMC DAC output with a simple hal command. Then, no wiring changes are > needed. >> I am saving all posts about velocity loop tuning for later. I believe >> that this is very useful stuff to learn. >> > Yes, if you are going to do servo CNC retrofits, it is important. > > Jon > > ------------------------------------------------------------------------------ > Start uncovering the many advantages of virtual appliances > and start using them to simplify application deployment and > accelerate your shift to cloud computing. > http://p.sf.net/sfu/novell-sfdev2dev > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
