Electric scooter motor reversible?

[John Doe]

I have not found it on the web, but the part number is
XYDJ09072117
It uses this controller.
http://www.curriestore.com/731-ezip-controller.html
"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

Does just reversing the polarity of the wires going to the motor
cause it to run backwards but perfectly otherwise?

Thanks.

 

[Tim Wescott]

On 06/10/2010 05:24 PM, John Doe wrote:

I have not found it on the web, but the part number is
XYDJ09072117
It uses this controller.
http://www.curriestore.com/731-ezip-controller.html
"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

Does just reversing the polarity of the wires going to the motor
cause it to run backwards but perfectly otherwise?

That's hard to say. If it's a brushed DC motor, then yes. If it's a
brushless DC motor then it's got electronics inside, and probably no.

If there's really only two pins on that connector, and that's really the
only connector, then my money is on a brushed DC motor. If you can see
a circuit board inside then a brushless motor becomes much more likely.
If you can see brushes inside then -- well, what do you think?

If you hook it up backward and it spits and pops and a bunch of smoke
pours out, then it _was_ a brushless motor, and it's _now_ a paperweight.

--
Tim Wescott
Control system and signal processing consulting
www.wescottdesign.com

 

[John Doe]

Tim Wescott <tim@seemywebsite.now> wrote:

That's hard to say. If it's a brushed DC motor, then yes. If
it's a brushless DC motor then it's got electronics inside, and
probably no.

If there's really only two pins on that connector, and that's
really the only connector, then my money is on a brushed DC
motor. If you can see a circuit board inside then a brushless
motor becomes much more likely.
If you can see brushes inside then -- well, what do you think?

It has four screws, but apparently it is glued shut.

If you hook it up backward and it spits and pops and a bunch of
smoke pours out, then it _was_ a brushless motor, and it's _now_
a paperweight.

http://www.alibaba.com/product-gs/258896362/DC_Brush_Motor_XYD_6B.html

That is the same as my 750 W version.

It is a brush motor. I will hook it up backwards and see if it
turns.

What is the chance that the brushes are configured so that it runs
better in the forward direction than in reverse? Experimentation
can prove that I guess, as long as there is no risk of burning up
the motor during a careful test. I will use the stock fuse.

Thanks.

 

[John Doe]

I took the opportunity to chat with whoever it is on their
website, and they said it is reversible. Well, being able to
reverse the motor is going to significantly help my project.
Thanks.

 

[default]

On 11 Jun 2010 03:04:52 GMT, John Doe <jdoe@usenetlove.invalid> wrote:

I took the opportunity to chat with whoever it is on their
website, and they said it is reversible. Well, being able to
reverse the motor is going to significantly help my project.
Thanks.

Some of the electric motors sold for bike conversions have
over-running clutches. While the motor is reversible the clutch may
not be. The clutch is desirable for bicycle applications since it
allows you to coast without the motor turning and adding drag. Geared
down motors are often combined with clutches, since the drag is
appreciable.
--