Electric scooter motor reversible?
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From: TTman on 11 Jun 2010 04:40 "John Doe" <jdoe(a)usenetlove.invalid> wrote in message news:4c11f540$0$16139$c3e8da3(a)news.astraweb.com... > "TTman" <someone.pc ntlworld.com> wrote: > >> "John Doe" <jdoe usenetlove.invalid> wrote > >>> "Controller, 24v30a BG 5pin, TO/Charge Cut, (08A version)" >>> Basically the same as this 500 W motor. >>> http://www.curriestore.com/481-ezip-motor.html > >> They are BLDC motors and controllers- 3 phase, essentially. >> Swapping any 2 of the 3 wires will reverse the motor. > > Only two wires go to the motor. > >> You'd never get the wattage from that size stepper... I'd >> suggest that particular motor is internally geared.... > > The motor is the 750 W version of this 500 W motor. > http://www.alibaba.com/product-gs/258896362/DC_Brush_Motor_XYD_6B.html > > Will it run as efficiently in reverse, by simply switching the > wires? Someone else is suggesting that the brushes might be > aligned better for forward motion. I need to do some metal work > that depends on whether the motor can run in reverse exactly the > same as forward. > > Thanks. > There are no brushes LOL... BLDC = B rush L ess DC motor. They run in either direction with no reduction in power.
From: PeterD on 11 Jun 2010 08:21 On 11 Jun 2010 08:35:12 GMT, John Doe <jdoe(a)usenetlove.invalid> wrote: >"TTman" <someone.pc ntlworld.com> wrote: > >> "John Doe" <jdoe usenetlove.invalid> wrote > >>> "Controller, 24v30a BG 5pin, TO/Charge Cut, (08A version)" >>> Basically the same as this 500 W motor. >>> http://www.curriestore.com/481-ezip-motor.html > >> They are BLDC motors and controllers- 3 phase, essentially. >> Swapping any 2 of the 3 wires will reverse the motor. > >Only two wires go to the motor. > >> You'd never get the wattage from that size stepper... I'd >> suggest that particular motor is internally geared.... > >The motor is the 750 W version of this 500 W motor. >http://www.alibaba.com/product-gs/258896362/DC_Brush_Motor_XYD_6B.html > That is a chinese POS motor that is *rated* at 336 watts max. It is chinese, and therefor you must derate it by a factor of about 75%. If you are using a chinese motor, no one here can tell you what will happen if you reverse the voltage to it. >Will it run as efficiently in reverse, by simply switching the >wires? Someone else is suggesting that the brushes might be >aligned better for forward motion. It is unlikely that that motor has any optimization... >I need to do some metal work >that depends on whether the motor can run in reverse exactly the >same as forward. > >Thanks.
From: John Doe on 11 Jun 2010 13:34 PeterD <peter2 hipson.net> wrote: > John Doe <jdoe usenetlove.invalid> wrote: >>"TTman" <someone.pc ntlworld.com> wrote: >>> "John Doe" <jdoe usenetlove.invalid> wrote >> >>>> "Controller, 24v30a BG 5pin, TO/Charge Cut, (08A version)" >>>> Basically the same as this 500 W motor. >>>> http://www.curriestore.com/481-ezip-motor.html >> >>> They are BLDC motors and controllers- 3 phase, essentially. >>> Swapping any 2 of the 3 wires will reverse the motor. >> >>Only two wires go to the motor. >> >>> You'd never get the wattage from that size stepper... I'd >>> suggest that particular motor is internally geared.... >> >>The motor is the 750 W version of this 500 W motor. >>http://www.alibaba.com/product-gs/258896362/DC_Brush_Motor_XYD_6B.html >> > > That is a chinese POS motor Yes I know, but that is not the subject. If you have a better motor (same size and mounting) that will live up to your standards, please feel free to send it to me. > that is *rated* at 336 watts max. It is chinese, and therefor > you must derate it by a factor of about 75%. If you are using a > chinese motor, no one here can tell you what will happen if you > reverse the voltage to it. Why is that? -- >>Will it run as efficiently in reverse, by simply switching the >>wires? Someone else is suggesting that the brushes might be >>aligned better for forward motion. > > It is unlikely that that motor has any optimization... > >>I need to do some metal work >>that depends on whether the motor can run in reverse exactly the >>same as forward. >> >>Thanks. > > > Path: news.astraweb.com!border5.newsrouter.astraweb.com!news.glorb.com!news2.glorb.com!news.glorb.com!news.mv.net!not-for-mail > From: PeterD <peter2 hipson.net> > Newsgroups: sci.electronics.design > Subject: Re: Electric scooter motor reversible? > Date: Fri, 11 Jun 2010 08:21:54 -0400 > Organization: MV Communications, Inc. > Lines: 38 > Message-ID: <cfa4169tvs98sp236gei9jopp4cegivfld 4ax.com> > References: <4c11826d$0$1643$c3e8da3 news.astraweb.com> <sclQn.9563$Cw6.5495 hurricane> <4c11f540$0$16139$c3e8da3 news.astraweb.com> > NNTP-Posting-Host: hipson.net > Mime-Version: 1.0 > Content-Type: text/plain; charset=us-ascii > Content-Transfer-Encoding: 7bit > X-Trace: pyrite.mv.net 1276258914 43676 207.22.18.93 (11 Jun 2010 12:21:54 GMT) > X-Complaints-To: abuse mv.net > NNTP-Posting-Date: Fri, 11 Jun 2010 12:21:54 +0000 (UTC) > X-Newsreader: Forte Agent 3.3/32.846 >
From: John Doe on 11 Jun 2010 13:40 "TTman" <someone.pc ntlworld.com> wrote: > "John Doe" <jdoe usenetlove.invalid> wrote >> "TTman" <someone.pc ntlworld.com> wrote: >>> "John Doe" <jdoe usenetlove.invalid> wrote >>>> "Controller, 24v30a BG 5pin, TO/Charge Cut, (08A version)" >>>> Basically the same as this 500 W motor. >>>> http://www.curriestore.com/481-ezip-motor.html >> >>> They are BLDC motors and controllers- 3 phase, essentially. >>> Swapping any 2 of the 3 wires will reverse the motor. >> >> Only two wires go to the motor. >> >>> You'd never get the wattage from that size stepper... I'd >>> suggest that particular motor is internally geared.... >> >> The motor is the 750 W version of this 500 W motor. >> http://www.alibaba.com/product-gs/258896362/DC_Brush_Motor_XYD_6B.html >> >> Will it run as efficiently in reverse, by simply switching the >> wires? Someone else is suggesting that the brushes might be >> aligned better for forward motion. I need to do some metal work >> that depends on whether the motor can run in reverse exactly the >> same as forward. > There are no brushes LOL... BLDC = B rush L ess DC motor. > They run in either direction with no reduction in power. Are/were you drunk? I gave you a direct link (right there, above this) to a brief description of the product on the distributor's website. It says "brush". Even the link says "DC_Brush_Motor". -- > Path: news.astraweb.com!border2.newsrouter.astraweb.com!nntp.club.cc.cmu.edu!weretis.net!feeder2.news.weretis.net!de-l.enfer-du-nord.net!feeder2.enfer-du-nord.net!newsfeed.eweka.nl!eweka.nl!feeder3.eweka.nl!69.16.177.254.MISMATCH!cyclone01.ams2.highwinds-media.com!news.highwinds-media.com!npeersf02.ams.highwinds-media.com!newsfe17.ams2.POSTED!7564ea0f!not-for-mail > Reply-To: "TTman" <someone.pc ntlworld.com> > From: "TTman" <someone.pc ntlworld.com> > Newsgroups: sci.electronics.design > References: <4c11826d$0$1643$c3e8da3 news.astraweb.com> <sclQn.9563$Cw6.5495 hurricane> <4c11f540$0$16139$c3e8da3 news.astraweb.com> > Subject: Re: Electric scooter motor reversible? > Lines: 35 > X-Priority: 3 > X-MSMail-Priority: Normal > X-Newsreader: Microsoft Outlook Express 6.00.2900.5931 > X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5931 > X-RFC2646: Format=Flowed; Original > Organization: virginmedia.com > Message-ID: <WDmQn.9699$Cw6.3665 hurricane> > NNTP-Posting-Date: Fri, 11 Jun 2010 08:40:22 UTC > Date: Fri, 11 Jun 2010 09:40:14 +0100 > >
From: TTman on 11 Jun 2010 18:22 >>> Will it run as efficiently in reverse, by simply switching the >>> wires? Someone else is suggesting that the brushes might be >>> aligned better for forward motion. I need to do some metal work >>> that depends on whether the motor can run in reverse exactly the >>> same as forward. > >> There are no brushes LOL... BLDC = B rush L ess DC motor. >> They run in either direction with no reduction in power. > > Are/were you drunk? > > I gave you a direct link (right there, above this) to a brief > description of the product on the distributor's website. It says > "brush". Even the link says "DC_Brush_Motor". > -- Looks like it... my bad :(
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