View Single Post
  #5   Report Post  
Posted to comp.robotics.misc,sci.electronics.repair
Daniel Rudy Daniel Rudy is offline
external usenet poster
 
Posts: 10
Default Help identifying motor leads.

At about the time of 10/16/2008 4:04 PM, Dave Plowman (News) stated the
following:
In article ,
Daniel Rudy wrote:
Two of the wires for the armature, two for the field.


A DC motor that has a field winding? I need to find a way inside these
motors...


Older car starter motors had field windings - called series wound. Maximum
torque at stall. Will also run on AC.



Interesting.

I have some additional information. The black and white wires are
connected to brushes. The DC resistance between the two is about 2.7
ohms. The red and yellow wires have a DC resistance of 7.3 ohms. So I
guess they can be wires either series or parallel. What I don't
understand is if the red and yellow wires are for the field, then why
bring them out? Why not just connect them internally?

--
Daniel Rudy

Email address has been base64 encoded to reduce spam
Decode email address using b64decode or uudecode -m