Working principle and wiring of encoder with switch2021

Encoders with switches have more switching functions than ordinary rotary encoders. It is a cost-effective encoder. Many designers will use it flexibly. Today, I will introduce the working principle of encoders with switches and the wiring method of encoders with switches. .

Encoder|Transmitter|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

Working principle of encoder with switch

When the encoder shaft with switch (incremental) rotates, there will be a corresponding pulse signal output. The direction of rotation of the encoder can be judged with the increase or decrease of the number of pulses, and the direction of the rear circuit and Counter to achieve. The counting starting point of the encoder can be set arbitrarily, and at the same time, unlimited accumulation and measurement of multiple turns can be realized. Every time a pulse of Z signal is forwarded, a pulse signal will be output as the reference mechanical zero position. Therefore, when the pulse signal is fixed, if you want to improve the accuracy of the encoder's resolution, the operation method can use the two signals of A and B with a phase difference of 90 degrees to operate, which is to double the frequency of the original pulse number.

Wiring method of encoder with switch

Generally, encoders with switches have five pin terminals. Generally, the first three pin terminals are A, B, Z three-phase pulse output lines, and the other two are COM terminal lines and power lines. The wiring method of the encoder is that the first thing that needs to be operated is to connect the power terminal (negative) to the COM terminal of the encoder, and then the + terminal of the power supply (positive) to the power terminal of the encoder. Then connect the COM terminal of the encoder to the PLC input COM terminal, and finally connect the A, B, Z three-phase pulse output lines of the first three pin terminals to the PLC input terminal.