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How to recognize wires of DC motor ?

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small_chip

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I've got a Hitachi DC servo motor which has 5 wires (besides 2 other wires in order to supply power for motor): red,green, white,yellow and black.
I guess: red wire = power & green wire = GND for encoder, white wire = A phase encoder, yellow = B phase encoder and black wire = index signal in order to determine completion of a revolution! is this right ? :)
 

small_chip

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HAIDE

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The VCC and GND is easily known, using oscilloscope you can fin out EnA, EnB which have 90 degrees difference. let me know if you have a problem.
 

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