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EMB Motor   Message List  
Reply | Forward Message #780 of 841 |
Re: EMB Motor

Hi Harry -- The controller was custom built for us with custom software by
Semifusion Corp. (Watsonville, CA - contact Mr Bill Lee). As far as I know
there is no "easy way" to get it to run without specific VR 2-phase control
software.

I can't remember how the rotor looked, but I think each par of stator poles set
up a field and this field "rotates". The rotor was about 2 inches diameter and
made of laminated steel (no coils).

Scott Cronk
Founder EMB
--- In lectra@yahoogroups.com, "giantsaholic" <harry_wornick@...> wrote:
>
> Hi all. I work as an intern in a silicon valley startup and I've come across
an old EMB motor in my work. The only identification it has on it besides the
EMB logo is "PP1-09" on the gearbox. I would think it is the VR24 motor
described on the website but it looks sort of different than the mechanical
schematic. It has a small hp HEDS-5640 encoder on the gear box side and 8 poles
on the motor side. Does each of these poles correspond to one tooth in the
stator? Or perhaps each pair of poles corresponds to a stator tooth? I'm just
trying to figure out how this motor is 2-phase. Furthermore, I'm trying to rig
up the motor to run on a dynamometer but I can't seem to get the shaft to rotate
at all. Anyone know where I can find an easily integrated controller/inverter? I
would appreciate any ideas or knowledge about this motor that is not already on
electricmotorbike.org
>
> Thanks!
>
> Harry Wornick
>





Tue Jun 23, 2009 11:21 pm

lectrascott
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Message #780 of 841 |
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Hi all. I work as an intern in a silicon valley startup and I've come across an old EMB motor in my work. The only identification it has on it besides the EMB...
giantsaholic
Offline Send Email
Jun 23, 2009
9:36 pm

Hi Harry -- The controller was custom built for us with custom software by Semifusion Corp. (Watsonville, CA - contact Mr Bill Lee). As far as I know there is...
lectrascott
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Jun 23, 2009
11:22 pm

Thanks Scott. Do you know what voltage/amperage the motor runs on?...
giantsaholic
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Jun 29, 2009
8:39 pm

24 VDC, nominal -- I think the operable range was 18-30 volts. Peak power is 8hp, 3HP continuous....
lectrascott
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Jun 29, 2009
8:57 pm
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