[PSUBS-MAILIST] Alan's new motors

Alan James via Personal_Submersibles personal_submersibles at psubs.org
Mon Aug 15 05:46:44 EDT 2016


Hi Hank,thanks for the enquiry. Yes have finally got my lathe up & goingafter 2 months. The thruster motors are running a bit rough on both myKelly sensored controllers & my sensorless controllers. Althoughthey are reaching the correct rpm for the volts applied.There is very little out there in the way of brushless, sensored orunsensored DC motor controllers, that will run up to 40 amps & 48Vwith reverse. (& not cost the earth). I am coming to terms with the factthat I may have to make my own controller. Have just bought a frequencygenerator & oscilloscope to help with the process & to try & find whythe motors are running rough on the Kelly controller.I am appreciating the fact that I'm learning a bit more, but not happywith the lack of progress.Cheers Alan


      From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
 To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
 Sent: Monday, August 15, 2016 10:43 AM
 Subject: [PSUBS-MAILIST] Alan's new motors
   
Alan,How are your motors progressing?  You get your lathe working?Hank
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