Reply by bigblockyeti

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Posted on Motor wiring help

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6841 posts in 2642 days

#1 posted 04-09-2014 04:22 AM

I’ve played around with these a little, I suspect the black, blue and red are your different speeds, or more accurately different torques. Much like a ceiling fan motor or an air handler blower motor, they can spin at full speed with no load, the speed is reduced only when the load is applied. To check which speed (or torque) each of the wires represents, you could try all of them, the one that accelerates the rotor the slowest would be your slow speed and so on and so forth.

-- "Lack of effort will result in failure with amazing predictability" - Me

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