Wiring up an AC Motor?

Asked by ryanfaerman (109

) November 24th, 2008

I’ve come across a light-duty AC motor that I want to use in a garage door opener. Problem is, this is an old motor that doesn’t seem to have any wiring diagram.

Does anyone in the collective know how I would wire it up?

This is what the labels on the motor say:
The number on it is 5KCP29MG and 4047CT
115V 4.2A 1050 RPM CW/CCW 1/3HP 60Hz

There arejust four wires coming from it two yellows a black and a red. Armature is strictly non energized. It’s from/for an industrial garage door opener.

Here is a picture: http://greenservr.com/files/motorWindings.jpg

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5 Answers

black should be your ground
Red will come from your live power
Yellows to the opener button

skabeep (927

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These wires go directly to coils inside the motor not to any other electronics.

From what I have been able to find, this seems to be a split-capacitor motor, so one pair of those wires goes to a capacitor and acts as the starting winding, and the other pair is for the normal windings.

ryanfaerman (109

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