|
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 |
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|
Measuring standard Grating period Coefficient of expansion |
Steel drum 20 µm αtherm ≈ 10.4 · 10–6 K–1 |
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|
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 |
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|
Drum inside diameter* |
40 mm |
70 mm |
80 mm |
120 mm/ |
150 mm/ |
180 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) |
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|
Protection EN 60 529 |
Complete encoder in mounted condition: IP00 |
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|
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 |
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