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HEIDENHAIN ERA 8480 Modular Angle Encoder Wtih Optimal Scanning

BRAND : HEIDENHAIN

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Scanning head

AK ERA 8480

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

Scanning head

AK ERA 8480

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

? 200 m/s2 (EN 60 068-2-6)

? 1000 m/s2 (EN 60 068-2-27)

Operating temperature

–10 °C to 80 °C

Mass

? 20 g (without cable)

Scale Tape

MSB ERA 8400 C full circle version

MSB ERA 8401 C segment version with tensioning elements

MSB ERA 8402 C segment version without tensioning elements

Measuring standard

Grating period

Coefficient of expansion

Steel scale-tape with METALLUR graduation

40 µm

?therm ? 10.5 · 10–6 K–1

Signal periods1)

36 000

45 000

90 000

Accuracy of graduation2)

±4.7”

±3.9”

±1.9”

Interpolation error per signal period2)

±0.4”

±0.3”

±0.1”

Accuracy of the scale tape

±3 µm/m of tape length

Reference marks

Distance-coded

Scale-slot diameter*

Full circle

458.11 mm

572.72 mm

1145.73 mm

Segment

? 400 mm

Mech. permissible speed

? 50 rpm

? 50 rpm

? 45 rpm

Permissible axial movement

? 0.5 mm (scale tape relative to scanning head)

Permissible expansion coefficient of shaft

?therm?9 · 10–6 K–1 to 12 · 10–6 K–1

Protection EN 60 529

Complete encoder in mounted condition: IP00

Mass

? 30 g/m

* Please select when ordering, additional diameters up to max. 3 m upon request

1) Validity for full circle version; for segment versions depending on the mating diameter and the tape length

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


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