Scanning head

AK ERM 2980

Incremental signals

1 VPP

Cutoff frequency –3 dB

≥ 300 kHz

Signal period

Approx. 1 000 µm

Line count

See “Scale drum”

Power supply

5 V DC ± 10 %

Current consumption

≤ 150 mA (without load)

Electrical connection

Cable 1 m, with or without coupling; cable outlet axial or radial

Cable length

≤ 150 m (with HEIDENHAIN cable)

Vibration 55 to 2000 Hz

Shock 6 ms

≤ 400 m/s² (EN 60 068-2-6)

≤ 1000 m/s² (EN 60 068-2-27)

Operating temperature

^-10 °C to 100 °C

Protection EN 60 529

IP 67

Weight

Approx. 0.15 kg (with cable)

Scale drum

ERM 2904

Measuring standard

MAGNADUR graduation; signal period of approx. 1000 µm

Inside diameter

40 mm

55 mm

60 mm

100 mm

Outside diameter

58.06 mm

77.41 mm

90.72 mm

120.96 mm

Line count

192

256

300

400

Position error per signal period 1)

± 68“

± 51“

± 44“

± 33“

Accuracy of graduation

± 68“

± 51“

± 44“

± 33“

Reference mark

One

Mech. permissible speed

≤ 47 000 min^-1

≤ 35 000 min^-1

≤ 29 000 min^-1

≤ 16 000 min^-1

Moment of inertia of the rotor

0.07 · 10–3 kgm2

0.22 · 10–3 kgm2

0.45 · 10–3 kgm2

0.92 · 10–3 kgm2

Permissible axial motion

± 0.5 mm

Weight approx.

0.11 kg

0.19 kg

0,30 kg

0,30 kg

Please select or indicate when ordering

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

Other line counts/dimensions upon request