Question for motor experts

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Joined: Thursday, August 21, 2008 - 18:53
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Question for motor experts

I'm looking for info on how a shunt field type motor works and some advice
If you know of any URLs about shunt field type motors, please post them.
I have a shunt type motor, the shunt is 40 ohms.
I have a series type motor controller (Alltrax NPX4834).
I know your supposed to use a different controller for shunt
type motors, but I have what I have.

I have three thoughts about how to connect it.

Just connect the shunt to the battery voltage and leave it.

Connect the shunt to the battery voltage with a reostat
so the current can be adjusted. (Where to have the current
at what time would be the question)

Connect the shunt to the motor plus and let the controller
PWM the parallel shunt/armature connection.

This is on a gokart and I'm using the contoller at about 1/3
of max current.

Can you help?
Thanks, Qmavam
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