--- On Tue, 4/30/13, John Kasunich <jmkasun...@fastmail.fm> wrote: > From: John Kasunich <jmkasun...@fastmail.fm> > Subject: Re: [Emc-users] converting Monarch 10EE > To: emc-users@lists.sourceforge.net > Date: Tuesday, April 30, 2013, 12:56 PM > > > On Tue, Apr 30, 2013, at 02:14 PM, Stephen Dubovsky wrote: > > SCR dc drives? Is this the 70's? > > > > LOL. Im kidding. But only partially:) > > > > SMD > > For anything more than a few HP, SCRs still rule the DC > drive world. > > I guess the toy stuff, under 1HP, is all PWM based these > days. > Small but not toys, say 1 to 5 HP, is probably a mix. > But I bet there aren't many PWM DC drives above 5HP.
kbelectronics.net has PWM for just about anything you want to spin with DC On the lower end... The KBWT-26 list price is $168.00 (1HP) The KBWT-210 list price is $228.00 (2HP) Those are bare units, no enclosure, no fancy display. Setup for an on/off and a speed rheostat. They have a safety system so the speed has to be turned to zero before they'll power up. They have ones capable of plenty higher outputs, as well as ones with fancy enclosures, displays, buttons etc. ------------------------------------------------------------------------------ Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with <2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
