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    Incremental Rotary Encoder, Shaft, 100 ppr

    Cheap optical rotary encoder adopts stainless steel shaft, high resolution, high quality, line interface with waterproof protection, several output modes to choose, manufacturer direct sale. 100 ppr incremental rotary encoder has 38mm shell diameter, 6mm shaft diameter and 1m cable length.
    SKU: ATO-IRE-100PS
    Free Shipping Worldwide
    Delivery date: 6-20 days

    Incremental optical rotary encoders with 100 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-S3806G-100BM-C830
    Weight 100 g
    Wiring Color Red Black Green White Yellow Brown Gray Orange Shielded wire
    Signal Vcc GND A B Z A- B- Z- GND
    Mechanical properties Maximum shaft speed (r/min) 5000
    Starting torque <0.03Nm (25℃)
    Maximum shaft load Radial load: 50N, axial load: 20N
    Shock resistance 50G/11ms
    Anti-vibration 10G (10~2000Hz)
    Rotational inertia 4X10-8kgm2
    Operating temperature -30~+85℃ (-22~+185℉)
    Storage temperature -35~+95℃ (-31~+203℉)
    Protection Level IP51
    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

    Tips: Analysis on rotary encoder's common malfunction

    1. Deformation of the rotation axis
      The common reason for this to happen is that the lock nut for fixing the nut or the locking potentiometer is over-tightened while installing, so it is recommended that the rotation axis shall be about 1 mm above the nut surface after the nut is tightened.
    2. Inflexible rotation
      It is usually caused by dust going into the shaft or lubricant becoming dry, normally put a small amount of gasoline on the shaft and it should be done while rotating the shaft.
    3. Poor connection
      There can be two cases, the first is when the reed has lack of flexibility, and the second is that the connection between the lead pin and the carbon film is poor. Both cases can be repaired. In the first case, we shall press down the contacts and the root of the spring lamination. In the second case, we shall use pliers to clamp the lead pin.
    4. Malfunction with alarms
      It means that the battery needs to be replaced. If the position memory of the reference point is lost, the reference point return operation must be performed.
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