Re: (ET) motor on E12S...

["RJ Kanary" <rjkanary nauticom net>]

      The field current requirements for the motors in question is for all
intents and purposes identical. In all the twenty some years that I have
operated either the late model  I-5 , or the earlier model eight speed 
E-20,
I have yet to encounter a situation where field voltage was lost.
     Since I do not have any information on the solid state controller you
are planning on utilizing, I can't offer an opinion on whether or not it
offers armature overcurrent protection.
     I do feel that the chances of a loss of field incident are slight. Few
people ask their tractors to do what I ask of mine. If anyone should have a
meltdown, it should be me.
   If your tractor uses field switching for reversing, instead of armature
reversing, I would recommend changing it over. It's not that bad of a job,
especially if you have the Manual, and an organ donor tractor.

----- Original Message ----- 
From: "Dave & Debbie Barden" <daveb seanet com>
To: <rjkanary nauticom net>; <ssawtelle fcc net>;
<elec-trak cosmos phy tufts edu>
Sent: Tuesday, February 10, 2004 10:18 AM
Subject: Re: (ET) motor on E12S...


> not being too electronically literate I need some help getting from A to
C, A
> being my motor has a shunt which supplies the field.  To get to C I have
to be
> sure that the sep-X controller will work with that kind of field.  One of
> Richardson's emails talked about their needing to modify the controller 
> to
work
> with small current of the E15's field windings 3 amps instead of 30 I
think he
> said.  Judging from the small wires going to the field of the E12S motor
and
> the fact that it uses a shunt I would guess that the current would be
pretty
> low as well???  And if steve is correct that the E12S uses an E15 like
motor it
> should work.  What I am really worried about is what will happen if my
field
> loses current (blown fuse or fried relay) will the armature still be
getting
> current from the controller???
>
> thanks,
> dave
>
>
> >     The only wound field traction motor that does not possess the extra
> > winding is the one used in the E-12 CA through HA models . This 
> > category
> > includes the E-12 M.
> >
> >        Note that in the Homeowner's Service Manual, the E-12 S  
> > armature
> > terminals are identified as A1 and S2, indicating the presence of a
'shunt'
> > winding.
> >
> > ----- Original Message ----- 
> > From: "steves" <ssawtelle fcc net>
> > To: <elec-trak cosmos phy tufts edu>
> > Sent: Tuesday, February 10, 2004 5:07 PM
> > Subject: Re: (ET) motor on E12S...
> >
> >
> > > As I understand it - The E12S is basically an E12 with an E15 motor.
The
> > > wiring is different than an E12.  I would think, based on this, it
would
> > > work.  Someone correct if I'm wrong...
> > >
> > > - SteveS
> > >
> > > ----- Original Message ----- 
> > > From: "Dave & Debbie Barden" <daveb seanet com>
> > > To: <plitch attglobal net>; <thumphrey mynra com>; <>
> > > Sent: Tuesday, February 10, 2004 8:38 AM
> > > Subject: (ET) motor on E12S...
> > >
> > >
> > > > I would really like to get the new Alltrax controller for my E12S.
But
> > > the
> > > > discussions on this list have all centered around the E15 and E20.
My
> > > ultimte
> > > > question is will the alltrax work with the E12S  motor?  Also what
does
> > > the S
> > > > in E12S signify?  I thought I read that the E12S is a "compound"
motor
> > > > aka "shunt motor" right/wrong???
> > > >
> > > > Bottom line, will the sep-X controller work on an E12S?   
> > > > thoughts??
> > > >
> > > > thanks,
> > > > dave
> > > >
> > > >
> > > > _______________________________________________
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> > > > Elec-trak cosmos phy tufts edu
> > > > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
> > > >
> > > >
> > >
> > >
> > >
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> > > Elec-trak cosmos phy tufts edu
> > > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
> > >
> >
> >
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