Gregg Eshelman wrote: > --- On Tue, 4/30/13, John Kasunich <[email protected]> wrote: > > >> From: John Kasunich <[email protected]> >> Subject: Re: [Emc-users] converting Monarch 10EE >> To: [email protected] >> 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) > And, I THINK they are SCR. I have a KBMG-212D here, and the motor buzzes like a buzzer when it starts.
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