ERA 4282 C

    Specifications

    Scanning head

    AK ERA 4280

    Interface

      1 VPP

    Cutoff frequency –3 dB

    350 kHz

    Electrical connection

    Cable 1 m with M23 coupling (12-pin)

    Cable length

    150 m (with HEIDENHAIN cable)

    Voltage supply

    DC 5 V ±0.5 V

    Current consumption

    < 100 mA (without load)

    Vibration 55 to 2000 Hz

    Shock 6 ms

    100 m/s2 (EN 60 068-2-6)

    500 m/s2 (EN 60 068-2-27)

    Operating temperature

    –10 °C to 80 °C

    Mass

    ≈ 20 g (without cable)

    Scale drum

    TTR ERA 4202 C

    Measuring standard

    Grating period

    Coefficient of expansion

    Steel drum

    20 µm

    αtherm 10.4 · 10–6 K–1

    Signal periods

    12 000

    16 384

    20 000

    28 000

    32 768

    40 000

    52 000

    Accuracy of graduation

    ±4”

    ±3”

    ±2.5”

    ±2”

    ±1.9”

    ±1.8”

    ±1.7”

    Interpolation error per signal period1)

    ±1.1”

    ±0.8”

    ±0.7”

    ±0.5”

    ±0.4”

    ±0.4”

    ±0.3”

    Reference marks

    Distance-coded

    Drum inside diameter*

    40 mm

    70 mm

    80 mm

    120 mm/
    150 mm

    150 mm/
    185 mm

    180 mm/
    210 mm

    270 mm

    Drum outside diameter*

    76.75 mm

    104.63 mm

    127.64 mm

    178.55 mm

    208.89 mm

    254.93 mm

    331.31 mm

    Mech. permissible speed

    10 000 rpm

    8500 rpm

    6250 rpm

    4500 rpm

    4250 rpm

    3250 rpm

    2500 rpm

    Moment of inertia

    0.28 · 10-3 kgm2

    0.83 · 10-3 kgm2

    2.0 · 10-3 kgm2

    7.1/4.5 · 10–3 kgm2

    12/6.5 · 10–3 kgm2

    28/20 · 10–3 kgm2

    59 · 10-3 kgm2

    Permissible axial movement

    ±0.5 mm (scale drum relative to the scanning head)

    Protection EN 60 529

    Complete encoder in mounted condition: IP00

    Mass

    ≈ 0.30 kg

    ≈ 0.42 kg

    ≈ 0.69 kg

    ≈ 1.2 kg/ 0.66 kg

    ≈ 1.5 kg/ 0.66 kg

    ≈ 2.3 kg/ 1.5 kg

    ≈ 2.6 kg

    * Please select when ordering

    1) Interpolation error within one signal period and the accuracy of the graduation together result in the encoder-specific error; for additional error from mounting and bearing of the measured shaft, see Measuring accuracy