That's the job of the infeed module to take the 3 phase 380vac and create 600vdc. Are you saying ditch all that and roll my own DC power supply and connect it to the DC buss for the drives? I'd like to know the details for that for sure...
The Simodrive 611 is a modular rack thing with copper buss bars from the infeed module across the front and all the rest of the modules connect to that. John On 5/9/2012 10:41 AM, Kirk Wallace wrote: > On Wed, 2012-05-09 at 09:55 -0500, John Thornton wrote: >> Ok, what I had been running was 4x60uf caps between 1 and 3 and 1x60uf >> cap between 2 and 3 (generated leg on 3 then) and that seemed to work >> the best. >> >> at the phase converter >> to ground 1 = 120v, 2 = 120v, 3 = 226v >> phase to phase 1 + 2 = 244v, 2 + 3 = 248v, 1 + 3 = 262v >> >> at the 380v taps on the transformer >> to ground 1 = 205v, 2 = 205v, 3 = 324v >> phase to phase 1 + 2 = 388v, 2 + 3 = 394v, 1 + 3 = 416v >> >> John >> >> On 5/9/2012 7:59 AM, andy pugh wrote: >>> On 9 May 2012 13:51, John Thornton<bjt...@gmail.com> wrote: >>>> I don't understand what you mean by "weak" leg? >>> You said you had it "wildly out of balance" ? >>> > I'm not familiar with Simodrives, but my guess is that all of the > components on the power input are there to eventually create a stable DC > bus voltage. I would tend to think about how to get from the power you > have available to create the DC your bus needs and feed that into the DC > tap. This could eliminate the need for the three-phase converter and > other fluff, but the Devil is in the details. > ------------------------------------------------------------------------------ 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
