ERM 2000

    Specifications

    Scanning head

    Grating period 200 µm

    Grating period 400 µm

    Grating period 1000 µm

    AK ERM 2280

    AK ERM 2480

    AK ERM 2420

    AK ERM 2410

    AK ERM 2980

    Interface

      1 VPP

      1 VPP

    TTL x 1, TTL x 2

    EnDat 2.22)

      1 VPP

    Cutoff frequency (–3dB)

    Scanning frequency

    ≥ 300 kHz

    ≥ 350 kHz

    ≥ 300 kHz

    Integrated interpolation

    16 384 (14 bits)

    Clock frequency

    8 MHz

    Calculation time tcal

    5 µs

    Electrical connection

    Cable, 1 m, with or without
    12-pin M23 coupling

    Cable, 1 m, with
    8-pin M12 coupling

    Cable, 1 m,
    with or without
    12-pin M23 coupling

    Cable outlet

    Tangentially to the left or right

    Tangentially to the left or right, axially

    Tangentially to the right

    Tangentially to the left or right, axially

    Power supply

    DC 5 V ±0.5 V

    DC 3.6 V to 14 V

    DC 5 V ±0.5 V

    Current consumption
    (typical)

    ≤ 150 mA (without load)

    At 5 V: ≤ 90 mA (without load)

    ≤ 150 mA (without load)

    Power consumption (max.)

    At 3.6 V: 1080 mW;
    at 14 V: 1300 mW

    Cable length1)

    ≤ 150 m

    ≤ 100 m

    ≤ 150 m

    Vibration 55 Hz to 2000 Hz

    Shock 6 ms

    Shock 6 ms, with fault exclusion for loosening of the mechanical connection

    ≤ 400 m/s² (EN 60068-2-6)

    ≤ 1000 m/s² (EN 60068-2-27)

    ≤ 400 m/s² (EN 60068-2-27)

    ≤ 300 m/s²
    (EN 60068-2-6)
    ≤ 1000 m/s²
    (EN 60068-2-27)

    ≤ 400 m/s²
    (EN 60068-2-27)

    ≤ 400 m/s²
    (EN 60068-2-6)
    ≤ 1000 m/s²
    (EN 60068-2-27)

    ≤ 400 m/s²
    (EN 60068-2-27)

    Operating temperature

    –10 °C to 60 °C

    –10 °C to 100 °C

    Protection EN 60529

    IP67

    Mass Scanning head

    Connecting cable

    M23 coupling

    30 g (without connecting cable)

    37 g/m

    50 g

    1) With HEIDENHAIN cable

    2) Absolute position value after traverse of two reference marks

    Scale drum

    TTR ERM 2200

    Grating period 200 µm

    Measuring standard

    Coefficient of expansion

    Steel drum

    αtherm 10 · 10–6 K–1

    Signal periods

    1024

    1200

    1440

    1800

    2048

    2400

    2800

    3392

    4096

    5200

    7200

    Drum inside diameter*

    40 mm

    40 mm/55 mm

    55 mm

    70 mm

    80 mm/95 mm

    105 mm/120 mm

    130 mm/140 mm

    160 mm

    180 mm/220 mm

    260 mm/295 mm

    380 mm/410 mm

    Drum outside diameter*

    64.37 mm

    75.44 mm

    90.53 mm

    113.16 mm

    128.75 mm

    150.88 mm

    176.03 mm

    213.24 mm

    257.50 mm

    326.90 mm

    452.64 mm

    Accuracy of graduation

    ±12”

    ±10

    ±8.5

    ±7

    ±6

    ±5.5/7

    ±5/6

    ±4

    ±3.5/4.5

    ±3/4

    ±2.5/3.5

    Interpolation error per signal period

    ±9”

    ±8

    ±6.5

    ±5.5

    ±4.5

    ±4

    ±4

    ±3

    ±2.5

    ±2

    ±1.5

    Reference mark

    One or distance-coded

    Mechanically
    permissible speed

    ≤ 22 000 rpm

    ≤ 19 000/
    18
    000 rpm

    ≤ 18 500 rpm

    ≤ 14 500 rpm

    ≤ 13 000/
    12
    500 rpm

    ≤ 10 500 rpm

    ≤ 9000/8500 rpm

    ≤ 7000 rpm

    ≤ 6000 rpm

    ≤ 4500 rpm

    ≤ 3000 rpm

    Maximum

    angular acceleration

    50 000 rad/s2

    27 000 rad/s2/

    48 000 rad/s2

    20 000 rad/s2

    9000 rad/s2

    6000 rad/s2/

    9000 rad/s2

    4900 rad/s2/

    7000 rad/s2

    3300 rad/s2/

    4400 rad/s2

    1900 rad/s2

    820 rad/s2/

    1800 rad/s2

    560 rad/s2/

    1300 rad/s2

    570 rad/s2/

    960 rad/s2

    Moment of inertia

    0.15 · 10–3 kgm2

    0.32/0.24 · 10–3 kgm2

    0.63 · 10–3 kgm2

    1.5 · 10–3 kgm2

    2.6/2.1 · 10–3 kgm2

    4.4/3.4 · 10–3 kgm2

    7.4/6.3 · 10–3 kgm2

    16 · 10–3 kgm2

    37/23 · 10–3 kgm2

    76/42 · 10–3 kgm2

    240/150 · 10–3 kgm2

    Permissible axial movement

    ±1.25 mm

    Mass

     0.21 kg

     0.35/0.22 kg

     0.44 kg

     0.69 kg

     0.89/0.65 kg

     1.0/0.72 kg

     1.2/0.99 kg

     1.8 kg

     3.0/1.6 kg

     3.5/1.7 kg

     5.4/3.2 kg

    Scale drum

    TTR ERM 2400

    Grating period 400 µm

    Measuring standard

    Coefficient of expansion

    Scale drum

    αtherm 10 · 10–6 K–1

    Signal periods

    512

    600

    720

    900

    1024

    1200

    1400

    1696

    2048

    2600

    3600

    3850

    4800

    Drum inside diameter*

    40 mm

    40 mm/55 mm

    55 mm

    70 mm

    80 mm/95 mm

    105 mm/120 mm

    130 mm/140 mm

    160 mm

    180 mm/220 mm

    260 mm/295 mm

    380 mm/410 mm

    450 mm

    512 mm

    Drum outside diameter*

    64.37 mm

    75.44 mm

    90.53 mm

    113.16 mm

    128.75 mm

    150.88 mm

    176.03 mm

    213.24 mm

    257.50 mm

    326.90 mm

    452.64 mm

    484.07 mm

    603.52 mm

    Accuracy of graduation

    ±13”

    ±11

    ±10

    ±8

    ±7

    ±6/8

    ±5.5/7

    ±4.5

    ±4/5

    ±3.5/4

    ±3/3.5

    ±3.5

    ±3

    Interpolation error per signal period

    ±18”

    ±15.5

    ±13

    ±10.5

    ±9

    ±8

    ±6.5

    ±5.5

    ±4.5

    ±3.5

    ±3

    ±2.5

    ±2

    Reference mark

    One or distance-coded

    Mechanically
    permissible speed

    ≤ 22 000 rpm

    ≤ 19 000/
    18
    000 rpm

    ≤ 18 500 rpm

    ≤ 14 500 rpm

    ≤ 13 000/
    12
    500 rpm

    ≤ 10 500 rpm

    ≤ 9000/8500 rpm

    ≤ 7000 rpm

    ≤ 6000 rpm

    ≤ 4500 rpm

    ≤ 3000 rpm

    ≤ 3000 rpm

    ≤ 1600 rpm

    Maximum

    angular acceleration

    50 000 rad/s2

    27 000 rad/s2/

    48 000 rad/s2

    20 000 rad/s2

    9000 rad/s2

    6000 rad/s2/

    9000 rad/s2

    4900 rad/s2/

    7000 rad/s2

    3300 rad/s2/

    4400 rad/s2

    1900 rad/s2

    820 rad/s2/

    1800 rad/s2

    560 rad/s2/

    1300 rad/s2

    570 rad/s2/

    960 rad/s2

    470 rad/s2

    230 rad/s2

    Moment of inertia

    0.15 · 10–3 kgm2

    0.32/0.24 · 10–3 kgm2

    0.63 · 10–3 kgm2

    1.5 · 10–3 kgm2

    2.6/2.1 · 10–3
    kgm2

    4.4/3.4 · 10–3
    kgm2

    7.4/6.3 · 10–3 kgm2

    16 · 10–3 kgm2

    37/23 · 10–3 kgm2

    76/42 · 10–3 kgm2

    235/151 · 10–3 kgm2

    153 · 10–3 kgm2

    713 · 10–3 kgm2

    Permissible axial movement

    ±1.25 mm

    Mass

     0.21 kg

     0.35/0.22 kg

     0.44 kg

     0.69 kg

     0.89/0.65 kg

     1.0/0.72 kg

     1.2/0.99 kg

     1.8 kg

     3.0/1.6 kg

     3.5/1.7 kg

     5.4/3.2 kg

     2.8 kg

     9.1 kg

    * Please select when ordering