John Thornton wrote: > RPC only running AB=245 BC=253 AC=253 > With the BP 308 (Simodrive 611) powered up AB=245 BC=245 AC=245 > With the Samson 7.5hp manual lathe spindle at 660 RPM AB=244 BC=232 > Adding the 308's spindle at 1000 RPM AB=244 BC=234 AC=229 > Ramping up to 3000 RPM on the 308's spindle AB=244 BC=234 AC=227 > > So it appears I need to do a bit more tuning with the caps as the load > is dragging down the voltage on the generated leg. Interestingly with > the Samson running the BP 308 would start from 0 to a higher RPM than > with it off even though the voltage had been pulled down by the Samson's > spindle. > Yup, you need a setting that gives the best balance over a RANGE of loads, from no-load to worst-case. Adding the Samson lathe is essentially adding another large idler motor, and may improve the balance under the worst-case load.
If you can get the generated leg to sag less under this load without surging too high at no-load, you may solve the problem. 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
