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    Incremental Rotary Encoder, Shaft, 2500 ppr

    Cheap incremental optical encoder adopts stainless steel shaft, high reliability, high resolution, high quality, several output modes to choose, manufacturer direct sale.
    SKU: ATO-S-IRE2500PS
    Free shipping
    Delivery date: 6-12 days

    Incremental optical rotary encoders with 2500 ppr can be used for robots, workbenches, injection molding machines, electronic equipment, printing and packaging machinery, non-standard equipment and CNC machine, a variety of office automation systems, industrial automation control and measurement fields.


    • Incremental rotary encoder internal adopts ASIC devices
    • High reliability, long life
    • Anti-jamming performance
    • Small size, light weight, compact structure
    • Easy installation


    Basics Model ATO-IRE2500PS
    Weight 100 g
    Wiring Color White Black Red Green Yellow Brown Gray Orange Shielded wire
    Signal Vcc 0V A B Z A- B- Z- GND
    Mechanical properties Maximum speed per minute (r/min) 5000
    Starting torque 1.5*10-3Nm (25℃)
    Maximum load Radial load: 20N, axial load: 10N
    Shock resistance 980m/s2
    Anti-vibration 50m/s2 (10~200Hz)
    Rotational inertia 4X10-8kgm2
    Operating temperature -30~85℃
    Storage temperature -35~95℃
    Protection Level IP54
    Electrical characteristics Output circuit Open-collector output Voltage output Push-pull output Line driver output
    Supply voltage Vcc DC 5V±0.2 DC 5~24V DC 5V±0.2 DC 5~24V DC 5V±0.2 DC 5~24V DC5V±0.2 DC 5~24V
    Current consumption ≤60mA ≤60mA ≤60mA ≤100mA
    Output high level ≥3.5V ≥Vcc-2.5V - - ≥2.5V ≥Vcc-2.5V
    Output low level ≤0.5V ≤0.5V - - ≤0.5V ≤1.0V
    Rise time Tr ≤500ns ≤1500ns - - ≤200ns ≤500ns
    Fall time Tf ≤100ns ≤300ns - - ≤200ns ≤200ns
    Maximum frequency response 0~100kHz 0~100kHz 0~100kHz 0~100kHz 0~100kHz 0~100kHz

    Selection table:

    ATO-IRE2500P S/H/B 06/08/10 30/38/40/44/
    D/G/H/E/ AB/ABZ T/C/K/P/L 5/524
    Pulse per revolution Shaft mode Shaft diameter Shell size Connection mode Output phase Output mode Working voltage
    2500 ppr S: Solid shaft
    H: Hollow shaft
    B: Blind shaft
    06: Ф6mm
    08: Ф8mm
    10: Ф10mm
    30: Ф30mm
    38: Ф38mm
    40: Ф40mm
    44: Ф44mm
    46: Ф46mm
    52: Ф52mm
    58: Ф58mm
    60: Ф60mm
    70: Ф70mm
    80: Ф80mm
    90: Ф90mm
    100: Ф100mm
    D: Socket at the side
    G: Cable at the side
    H: Socket at the back
    E: Cable at the back
    AB: 2 phase A, B
    ABZ: 3 phase A, B, Z
    T: Voltage output
    C: NPN open collector
    K: PNP open collector
    P: Push-pull output PNP+NPN
    L: Line driver
    5: +5V
    524: +5~24V

    Tips: Attentions for installing rotary encoder

    1. Installation: Don't exert direct impacts on the shaft during installation. Flexible connector shall be used when connecting the encoder shaft and the machine. Do not press hard into the shaft when mounting the connector.
      Do not disassemble the rotary encoder, doing so will impair oil and drip resistance. Anti-drip encoder should not be immersed in water and oil. If the surface has water and oil, it should be wiped clean.
    2. Vibration: Vibration added to the rotary encoder often causes erroneous pulses. Therefore, attention shall be paid to the installation place.
    3. Wiring and connection:
      a. The wiring should be performed with the power turned off. When the power is turned on, the output circuit may be damaged if the output line touches the power supply.
      b. If wiring with the high-voltage lines and power lines, it may sometimes be damaged by the malfunction caused by induction, so separate the separate wiring.
      c. The wires can be extended shorter than 10m. And due to the distribution of wire capacity, the time for the waveform to rise and fall will be longer; In case of a problem, the waveform shall be shaped using Schmitt circuit.
      d. In order to avoid induction noise, etc., try to use the shortest distance wiring. Special attention is required when inputting to integrated circuits.
      e. When the wire is extended, the rise and fall time of the waveform increases due to the influence of the conductor resistance and the capacitance between the wires, so that interference (signal crosstalk) between the signals is easily generated. Therefore, using a wire with small resistance and low interline capacitance (twisted pair, shielded line).
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