Don Stanley wrote: > > > Also the steps in the sawtooth are one millisecond, the thread rate. > You may not be able to control a 60 Hz machine with a 1 ms sampling rate. That is only 16.7 samples per cycle. > On start up EMC2 is driving the generator to 120 HZ > to > get the target position in sync. > > > But, > if I can't get the over speed under control I may have to abandon this > approach. > That's easy, just put the commanded speed through a limit component, and limit it to something sane like 65 Hz. It will only go a little above the normal speed until it is in sync, then drop back to 60 Hz.
Jon ------------------------------------------------------------------------------ The modern datacenter depends on network connectivity to access resources and provide services. The best practices for maximizing a physical server's connectivity to a physical network are well understood - see how these rules translate into the virtual world? http://p.sf.net/sfu/oracle-sfdevnlfb _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
