basic principle of encoder

Description

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1. There is a 90° phase difference between A and B phases ±1/8T1

2. The zero signal has high and low level selection.

3.UVW signal

It is used to characterize the relationship of 3 signals (electrical angle) with a phase difference of 120°, which is generally used in servo motors.

4. Voltage output

The emitter of the NPN transistor is grounded, and the collector is a circuit with load resistance output.

5. Open collector output

NPN type is a circuit that outputs directly from the collector of a transistor.

6. Long-line driver output

Integrated circuit for long-distance output, the signal is output in positive and negative directions, fast speed, strong anti-interference ability, and it can also detect cable disconnection.

7. Complementary output

The emitter of the NPN type and PNP type pair of tubes is connected to the output circuit. This circuit has a fast response speed and can also be transmitted over long distances.

8. Incremental

A method of outputting pulse trains or periodic trains of sine waves. The position is obtained based on accumulation.

9. Absolute

The method of outputting mechanical displacement using binary code or gray code as absolute position.

10. Positive logic

The symbol "1" is the output logic corresponding to the output voltage "H".

11. Negative logic

The symbol "1" is the output logic corresponding to the output voltage "L".