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 |
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| ON1004R |
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| (MATSUSHITA) |
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|
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TR1 | 2SC1740 |
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|
|
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R1 | 4.7 kΩ |
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|
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R2 | 56 kΩ |
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R3 | 150 Ω |
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C1 | 2200 PF |
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| Fig. | |
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| |
PS | Photo interruptor |
|
| ON1004R |
|
| (MATSUSHITA) |
|
|
|
|
TR1 | 2SC1740 |
|
|
|
|
R1 | 4.7 kΩ |
|
|
|
|
R2 | 56 kΩ |
|
|
|
|
R3 | 150 Ω |
|
|
|
|
C1 | 2200 PF |
|
|
|
|
Fig. 3-20 Circuit of timing signal 2 (example)
– 22 –