Functions √ This incremental optical rotary encoder can be used to measure the rotational speed, angle and acceleration of the object and the length measurement. √ This shaft encoder is suitable for a variety of intelligent control displacement measurement, automatic fixed- length automatic guillotine paper machine, steel cut length control, civilian measured height human scale, students racing robots. Specification -Encoder size: 38 x 35.5mm/1.49" x 1.39" -Shaft: 6 x 13mm/0.23" x 0.51" -Axis stopper platform: High 5mm, 20mm -Power source: DC 5-24V -Maximum mechanical speed: 5000 R / min -Response frequency: 0-20KHz -Fixed empty as: three 3mm screw holes distribution of 120 degrees / or six 3mm screw holes into 60 degree distribution, to the center distance of 14mm. -Wires length: 150cm Wiring Output: A phase, B phase, Vcc positive supply, V0, the shield wire. Connection: Green = A phase, white = B phase, red = power +, black = V0 Note: AB two -phase outputs must not be connected directly to VCC, otherwise, they will burn the output transistor. Output AB two -phase quadrature output rectangular pulse, the circuit output is NPN open collector output type ,the output of this type can and with additonal added pull-up resistor(not included) is directly connected MCU or PLC, such as 51 single or Mitsubishi PLC (PLC input mode should be connected to 0V switch function ). Note: If the encoder is not connected to the device can not be directly connected to oscilloscope ( open collector output without pull-up resistor when there is no voltage output) If you want the oscilloscope in AB two-phase output, work with two pull-up resistors(not included). Package content 1 x 600P/R Incremental Rotary Encoder