Electric Motor Problems

[E. Wiley]

Hi,

I recently purchased a DuraTrax IntelliSpeed ESC (8T Racing) and a
Trinity Speed Gem 11 Turn, Double-wind motor. The batteries I am using
are Team Orion Super Duty 3000s. When I hooked it all up and
attempted to run it, the wires connecting the battery to the speed
control and motor to the speed control became very hot within about 5
seconds. The motor did not spin either, but made a high pitched
buzzing/rattling sound. Within the 5 seconds it was connected, the
plastic that covered the leads connecting the speed control and motor
had begun to melt. To try and pinpoint the problem, I then hooked up
the motor to a power supply directly and heard sparks coming from
inside it instantly.

I am very new to electric cars; this is my first. I would appreciate
anyone's thoughts on what the possible problem could be. Is there any
problem with the configuration I have here? Could there be a short in
the motor somehow?

Thanks in advance,
Emerson

[J.P. Momma]

LOL... short in the motor. Did you solder any caps or diodes on? Using
stock "bullet" style connectors or did you solder your own? Make sure
your solder joints aren't shorting across the motor, and of course
check that they are correct polarity. Did you or anybody else
disassemble the motor before using it? Take the motor apart and check
for foreign objects and correct assembly. Those big can magnets
attract all manner of metal stuff. Good luck with the speedo, its
almost certainly fried.

Peace!

J.P. Momma

On 22 May 2003 20:44:31 -0700, ewiley@ccs.neu.edu (E. Wiley) wrote:

>Hi,
>
>I recently purchased a DuraTrax IntelliSpeed ESC (8T Racing) and a
>Trinity Speed Gem 11 Turn, Double-wind motor. The batteries I am using
>are Team Orion Super Duty 3000s. When I hooked it all up and
>attempted to run it, the wires connecting the battery to the speed
>control and motor to the speed control became very hot within about 5
>seconds. The motor did not spin either, but made a high pitched
>buzzing/rattling sound. Within the 5 seconds it was connected, the
>plastic that covered the leads connecting the speed control and motor
>had begun to melt. To try and pinpoint the problem, I then hooked up
>the motor to a power supply directly and heard sparks coming from
>inside it instantly.
>
>I am very new to electric cars; this is my first. I would appreciate
>anyone's thoughts on what the possible problem could be. Is there any
>problem with the configuration I have here? Could there be a short in
>the motor somehow?
>
>Thanks in advance,
> Emerson

[E. Wiley]

I have not yet soldered anything onto the motor. I was just testing
everything when I tried to run it before. I am using bullet style
connectors.

I disassembled the motor before running it to lubricate the bearings,
and did not see anything strange in it. Since it seems like an
unlikely problem that something would have shorted out in the motor
(at least I hope it's unlikely, anyway) I am concered that I am doing
something wrong somehow. I am sure that I have everything connected
correctly, but could it possibly be an incompatibility between what I
am using? I have an Airtronics MX-3 Radio System, DuraTrax
IntelliSpeed 8T ESC, Trinity Speed Gem 11T Double-Wind motor, Team
Orion 3000mAh batteries, and a DuraTrax Piranha Digital Charger.

Thanks again for your response.

Emerson

J.P. Momma <hiorder@hotmail.com> wrote in message news:<f27rcv8asve15d2g3j1krg1r5o16vpdega@4ax.com>...
> LOL... short in the motor. Did you solder any caps or diodes on? Using
> stock "bullet" style connectors or did you solder your own? Make sure
> your solder joints aren't shorting across the motor, and of course
> check that they are correct polarity. Did you or anybody else
> disassemble the motor before using it? Take the motor apart and check
> for foreign objects and correct assembly. Those big can magnets
> attract all manner of metal stuff. Good luck with the speedo, its
> almost certainly fried.
>
> Peace!
>
> J.P. Momma
>
> On 22 May 2003 20:44:31 -0700, ewiley@ccs.neu.edu (E. Wiley) wrote:
>
> >Hi,
> >
> >I recently purchased a DuraTrax IntelliSpeed ESC (8T Racing) and a
> >Trinity Speed Gem 11 Turn, Double-wind motor. The batteries I am using
> >are Team Orion Super Duty 3000s. When I hooked it all up and
> >attempted to run it, the wires connecting the battery to the speed
> >control and motor to the speed control became very hot within about 5
> >seconds. The motor did not spin either, but made a high pitched
> >buzzing/rattling sound. Within the 5 seconds it was connected, the
> >plastic that covered the leads connecting the speed control and motor
> >had begun to melt. To try and pinpoint the problem, I then hooked up
> >the motor to a power supply directly and heard sparks coming from
> >inside it instantly.
> >
> >I am very new to electric cars; this is my first. I would appreciate
> >anyone's thoughts on what the possible problem could be. Is there any
> >problem with the configuration I have here? Could there be a short in
> >the motor somehow?
> >
> >Thanks in advance,
> > Emerson

[Jonny Hodgson]

J.P. Momma wrote:
> LOL... short in the motor. Did you solder any caps or diodes on? Using
> stock "bullet" style connectors or did you solder your own? Make sure
> your solder joints aren't shorting across the motor, and of course
> check that they are correct polarity. Did you or anybody else
> disassemble the motor before using it? Take the motor apart and check
> for foreign objects and correct assembly. Those big can magnets
> attract all manner of metal stuff. Good luck with the speedo, its
> almost certainly fried.

Another possibility is that you've rebuilt the motor with the timing out
by 90 degrees - that would stop it turning, and look pretty much like a
short.

Usually <grabs a motor to check> the endbell fixing screws go
approximately in the gap between the magnets, so the brushes are near
the centres of the magnets. If you build a motor 180 degrees out it'll
run backwards (badly, if you had any timing on it ;-) but at 90 degrees
it won't know which way to go!

HTH,
Jonny

> On 22 May 2003 20:44:31 -0700, ewiley@ccs.neu.edu (E. Wiley) wrote:
>
>> Hi,
>>
>> I recently purchased a DuraTrax IntelliSpeed ESC (8T Racing) and a
>> Trinity Speed Gem 11 Turn, Double-wind motor. The batteries I am
>> using are Team Orion Super Duty 3000s. When I hooked it all up and
>> attempted to run it, the wires connecting the battery to the speed
>> control and motor to the speed control became very hot within about 5
>> seconds. The motor did not spin either, but made a high pitched
>> buzzing/rattling sound. Within the 5 seconds it was connected, the
>> plastic that covered the leads connecting the speed control and motor
>> had begun to melt. To try and pinpoint the problem, I then hooked up
>> the motor to a power supply directly and heard sparks coming from
>> inside it instantly.
>>
>> I am very new to electric cars; this is my first. I would appreciate
>> anyone's thoughts on what the possible problem could be. Is there any
>> problem with the configuration I have here? Could there be a short in
>> the motor somehow?
>>
>> Thanks in advance,
>> Emerson

[Corwin]

You did make sure that nothing was binding the motor too, right? Like if you
try and turn it with your hands does it spin freely? It sounds like you
might have gotten something stuck inside the motor.

neL

> I have not yet soldered anything onto the motor. I was just testing
> everything when I tried to run it before. I am using bullet style
> connectors.
>
> I disassembled the motor before running it to lubricate the bearings,
> and did not see anything strange in it. Since it seems like an
> unlikely problem that something would have shorted out in the motor
> (at least I hope it's unlikely, anyway) I am concered that I am doing
> something wrong somehow. I am sure that I have everything connected
> correctly, but could it possibly be an incompatibility between what I
> am using? I have an Airtronics MX-3 Radio System, DuraTrax
> IntelliSpeed 8T ESC, Trinity Speed Gem 11T Double-Wind motor, Team
> Orion 3000mAh batteries, and a DuraTrax Piranha Digital Charger.
>
> Thanks again for your response.
>
> Emerson
>
> J.P. Momma <hiorder@hotmail.com> wrote in message
news:<f27rcv8asve15d2g3j1krg1r5o16vpdega@4ax.com>...
> > LOL... short in the motor. Did you solder any caps or diodes on? Using
> > stock "bullet" style connectors or did you solder your own? Make sure
> > your solder joints aren't shorting across the motor, and of course
> > check that they are correct polarity. Did you or anybody else
> > disassemble the motor before using it? Take the motor apart and check
> > for foreign objects and correct assembly. Those big can magnets
> > attract all manner of metal stuff. Good luck with the speedo, its
> > almost certainly fried.
> >
> > Peace!
> >
> > J.P. Momma
> >
> > On 22 May 2003 20:44:31 -0700, ewiley@ccs.neu.edu (E. Wiley) wrote:
> >
> > >Hi,
> > >
> > >I recently purchased a DuraTrax IntelliSpeed ESC (8T Racing) and a
> > >Trinity Speed Gem 11 Turn, Double-wind motor. The batteries I am using
> > >are Team Orion Super Duty 3000s. When I hooked it all up and
> > >attempted to run it, the wires connecting the battery to the speed
> > >control and motor to the speed control became very hot within about 5
> > >seconds. The motor did not spin either, but made a high pitched
> > >buzzing/rattling sound. Within the 5 seconds it was connected, the
> > >plastic that covered the leads connecting the speed control and motor
> > >had begun to melt. To try and pinpoint the problem, I then hooked up
> > >the motor to a power supply directly and heard sparks coming from
> > >inside it instantly.
> > >
> > >I am very new to electric cars; this is my first. I would appreciate
> > >anyone's thoughts on what the possible problem could be. Is there any
> > >problem with the configuration I have here? Could there be a short in
> > >the motor somehow?
> > >
> > >Thanks in advance,
> > > Emerson