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SF-S55N
3) Reference wall motor (M6) control
The reference wall motor is a 4-phase stepping motor.
The sorter controller PWB sends the referemce wall
motor ON signal (GWMON) and control signals
(GWMA, GWMB) to the bin unit control PWB. The
motor driver (Q304) changes the rotation direction of
reference wall motor (M6) by controlling the output
timing of pulse signals (A, A*, B, B*) according to the
control signals (GWMA, GWMB).
Sorter controller
PWB
Bin unit control PWB
Motor
driver
9−27
While the reference wall motor ON signal (GWMON)
is not generated (while the motor is at reset), voltage
+5V is applied to each phase of reference wall motor
to fix rotation of reference wall motor.
Reference wall home
position sensor
Reference wall
motor
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