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PM Series Stepping Motor Stepping Motor Profile Product Code Basic Structure Direction of Rotation and Switching Sequence Standard Dimensions Angle of Attachment and Dimensions Front Plate Pull-Out Torque vs Motor Model Size Typical Characteristics DIRECTION OF ROTATION AND SWITCHING SEQUENCE Uni-Polar / Bi-Polar UNI-POLAR DRIVE Drive circuitry and standard lead wire color Motor unit wiring diagram Switching sequence (Using the drive circuit indicated above) Black Brown Orange Yellow Red/Red 1 - - + 2 - - + 3 - - + 4 - - + BI-POLAR DRIVE Drive circuitry and standard lead wire color Motor unit wiring diagram Switching sequence (Using the drive circuit indicated above) Black Brown Orange Yellow 1 - + - + 2 - + + - 3 + - + - 4 + - - +