John Thornton wrote: > It's hard to say but I "think" the 15hp motor worked the best. I've been > running and trying different things for a 1 1/2 years so my memory is a > bit clouded on exactly how it worked or didn't work. I do know at one > time my workaround was to ramp up the spindle from 2k to 6k and it ran > like that and that was on one of the 10hp motors. > > OK, I do remember your workaround. What you might try is running the 15 Hp and 10 Hp idler motor together and see if that fixes the problem. if so, it is clear you need a bigger idler motor. I have doubts a bigger line reactor would help, but it might. it depends completely on what exactly is causing the trip. Possibly adding both a line reactor and a capacitor back after the reactor would help stabilize the voltages and remove spikes that may be causing the trip.
But, you are running a machine that is awfully large for a rotary phase converter. Works fine if the converter only runs motors, but when it runs servo drives and spindle drives, it can be a problem, depending on how tightly the maker set the fault limits. Jon ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
