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4.4.8. Main Motor Drive Circuit
The main motor ( 2-phase stepping motor ) is driven by IC14 ( bipolar constant current driver ). The SMOA, SMONA, SMOB and
SMONB signals shown below are used to control motor direction. when the signals are output as shown below, the main motor
rotates.
Full Speed Mode ( 2 phase excitation ):
Half speed Mode ( 1-2 phase ( half step ) excitation ):
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KX-P7100