DFS21A-KCADN000500

DFS21A-KCADN000500

Incremental encoders
DFS2x

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SKU: DFS21A-KCADN000500 Danh mục: Thẻ: ,



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  • Performance
    Pulses per revolution 500
    Measuring step ± 90°, electric/pulses per revolution
    Measuring step deviation ± 0.008° pulses 100 … 10,000
    Error limits ± 0.03°
  • Interfaces
    Communication interface Incremental
    Communication Interface detail TTL / RS-422
    Number of signal channels 6-channel
    0-set function via hardware pin ✔
    0-SET function H-active, L = 0 – 3 V, H = 4,0 – Us V
    Initialization time 40 ms 1)
    Output frequency 820 kHz
    Load current 30 mA
    Operating current 50 mA (without load)
    • 1) Valid positional data can be read once this time has elapsed.
  • Electrical data
    Connection type Cable, 9-wire, radial, 5 m
    Supply voltage 4.5 … 5.5 V
    Reference signal, number 1
    Reference signal, position 90°, electric, logically gated with A and B
    Reverse polarity protection ✔
    Short-circuit protection of the outputs ✔ 1)
    MTTFd: mean time to dangerous failure 330 years (EN ISO 13849-1) 2)
    • 1) Short-circuit opposite to another channel or GND permissable for maximum 30 s.
    • 2) This product is a standard product and does not constitute a safety component as defined in the Machinery Directive. Calculation based on nominal load of components, average ambient temperature 40°C, frequency of use 8760 h/a. All electronic failures are considered hazardous. For more information, see document no. 8015532.
  • Mechanical data
    Mechanical design Through hollow shaft
    Shaft diameter 3/8″
    Flange type / stator coupling 2-point stator coupling
    Weight + 0.3 kg 1)
    Shaft material Stainless steel 1,4305
    Flange material Aluminum
    Housing material Aluminum
    Start up torque 0.8 Ncm (+20 °C)
    Operating torque 0.6 Ncm (+20 °C)
    Permissible movement static

    ± 0.3 mm (radial)

    ± 0.5 mm (axial)
    Permissible movement dynamic

    ± 0.05 mm (radial)

    ± 0.1 mm (axial)
    Operating speed ≤ 6,000 min⁻¹
    Moment of inertia of the rotor 40 gcm²
    Bearing lifetime 3.6 x 109 revolutions
    Angular acceleration ≤ 500,000 rad/s²
    • 1) Relates to encoders with male connector M12.
  • Ambient data
    EMC According to EN 61000-6-2 and EN 61000-6-3
    Enclosure rating

    IP65, shaft side (IEC 60529)

    IP67, housing side (IEC 60529)
    Permissible relative humidity 90 % (Condensation not permitted)
    Operating temperature range –30 °C … +85 °C
    Storage temperature range –40 °C … +100 °C, without package
    Resistance to shocks 100 g, 11 ms (EN 60068-2-27)
    Resistance to vibration 30 g, 10 Hz … 2,000 Hz (EN 60068-2-6)
  • Classifications
    eCl@ss 5.0 27270501
    eCl@ss 5.1.4 27270501
    eCl@ss 6.0 27270590
    eCl@ss 6.2 27270590
    eCl@ss 7.0 27270501
    eCl@ss 8.0 27270501
    eCl@ss 8.1 27270501
    eCl@ss 9.0 27270501
    eCl@ss 10.0 27270501
    eCl@ss 11.0 27270501
    eCl@ss 12.0 27270501
    ETIM 5.0 EC001486
    ETIM 6.0 EC001486
    ETIM 7.0 EC001486
    ETIM 8.0 EC001486
    UNSPSC 16.0901 41112113


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Technical drawings


DFS21A-KCADN000500

Dimensional drawing DFS21 through hollow shaft


DFS21A-KCADN000500

PIN assignment


DFS21A-KCADN000500

maximum revolution range


DFS21A-KCADN000500

Diagrams Signal Outputs with Counter Clock-wise Counting Direction Option Selected (B leads A for clock-wise rotation). Complement signals AN, BN and ZN are not shown.


DFS21A-KCADN000500

Diagrams Signal Outputs with Clock-wise Counting Direction Option Selected (A leads B for clock-wise rotation). Complement signals AN, BN and ZN are not shown.

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