Star Micronics MP111MP-24G-A - Manual (Page 25)

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3.11 Timing Signal Detector Specifications
The timing signal detector is composed of a detection slit mounted on the motor shaft, a photo interruptor,
and waveform shaping circuit.
Timing signal 1 is generated 18 pulses and timing signal 2 is generated 1 pulse every time the motor rotates
by 1 turn.
PS Photo interruptor
ON1004R
(MATSUSHITA)
TR1 2SC1740
R1 4.7 k
Ω
R2 56 k
Ω
R3 150
Ω
C1 2200 PF
Fig. 3-19 Circuit of timing signal 1 (example)
PS Photo interruptor
ON1004R
(MATSUSHITA)
TR1 2SC1740
R1 4.7 k
Ω
R2 56 k
Ω
R3 150
Ω
C1 2200 PF
Fig. 3-20 Circuit of timing signal 2 (example)