HEIDENHAIN ERA 4880 Modular Angle Encoder With Optical Scanning
Product Code:ERA 4880
Description
Scanning head
AK ERA 4280 graduation period 20 µm
AK ERA 4480 graduation period 40 µm
AK ERA 4880 graduation period 80 µm
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 Scanning head
? 20 g; scanning head for protective cover: ? 35 g (each without cable)
Scale drum
TTR ERA 4200 C graduation period 20 µm
TTR ERA 4400 C graduation period 40 µm
TTR ERA 4800 C graduation period 80 µm
Measuring standard
Coefficient of expansion
Steel drum
?therm ? 10.4 · 10–6 K–1
Signal periods/Interpolation error per signal period1)
ERA 4200
12 000/±1.1”
16 384/±0.8”
20 000/±0.7”
28 000/±0.5”
32 768/±0.4”
40 000/±0.4”
52 000/±0.3”
–
–
ERA 4400
6000/±2.2”
8192/±1.6”
10 000/±1.3”
14 000/±1.0”
16 384/±0.8”
20 000/±0.7”
26 000/±0.5”
38 000/±0.4”
44 000/±0.3”
ERA 4800
3000/±4.4”
4096/±3.2”
5000/±2.6”
7000/±1.9”
8192/±1.6”
10 000/±1.3”
13 000/±1.0”
–
–
Accuracy of graduation
±5”
±3.7”
±3”
±2.5”
±2”
Reference marks
Distance-coded or one
Drum inside diameter*
40 mm
70 mm
80 mm
120 mm
150 mm
180 mm
270 mm
425 mm
512 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
484.07 mm
560.46 mm
Mech. permissible speed
10 000 rpm
8500 rpm
6250 rpm
4500 rpm
4250 rpm
3250 rpm
2500 rpm
1800 rpm
1500 rpm
Moment of inertia
0.27 · 10-3 kgm2
0.81 · 10-3 kgm2
1.9 · 10-3 kgm2
7.1 · 10-3 kgm2
12 · 10-3 kgm2
28 · 10-3 kgm2
59 · 10-3 kgm2
195 · 10-3 kgm2
258 · 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:
Without protective cover
IP00
With protective cover2) and compressed air
IP40
IP40
IP40
IP40
IP40
IP40
IP40
–
Mass
Scale drum
? 0.28 kg
? 0.41 kg
? 0.68 kg
? 1.2 kg
? 1.5 kg
? 2.3 kg
? 2.6 kg
? 3.8 kg
? 3.6 kg
Protective cover
? 0.07 kg
? 0.1 kg
? 0.12 kg
? 0.17 kg
? 0.22 kg
? 0.26 kg
? 0.35 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
2) Possible only with ERA 4480; please order protective cover separately
Technical Specifications
Scanning head | AK ERA 4280 graduation period 20 µm AK ERA 4480 graduation period 40 µm AK ERA 4880 graduation period 80 µm |
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 Scanning head | ? 20 g; scanning head for protective cover: ? 35 g (each without cable) |
Scale drum | TTR ERA 4200 C graduation period 20 µm TTR ERA 4400 C graduation period 40 µm TTR ERA 4800 C graduation period 80 µm | |||||||||
Measuring standard Coefficient of expansion | Steel drum ?therm ? 10.4 · 10–6 K–1 | |||||||||
Signal periods/Interpolation error per signal period1) | ERA 4200 | 12 000/±1.1” | 16 384/±0.8” | 20 000/±0.7” | 28 000/±0.5” | 32 768/±0.4” | 40 000/±0.4” | 52 000/±0.3” | – | – |
ERA 4400 | 6000/±2.2” | 8192/±1.6” | 10 000/±1.3” | 14 000/±1.0” | 16 384/±0.8” | 20 000/±0.7” | 26 000/±0.5” | 38 000/±0.4” | 44 000/±0.3” | |
ERA 4800 | 3000/±4.4” | 4096/±3.2” | 5000/±2.6” | 7000/±1.9” | 8192/±1.6” | 10 000/±1.3” | 13 000/±1.0” | – | – | |
Accuracy of graduation | ±5” | ±3.7” | ±3” | ±2.5” | ±2” | |||||
Reference marks | Distance-coded or one | |||||||||
Drum inside diameter* | 40 mm | 70 mm | 80 mm | 120 mm | 150 mm | 180 mm | 270 mm | 425 mm | 512 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 | 484.07 mm | 560.46 mm | |
Mech. permissible speed | 10 000 rpm | 8500 rpm | 6250 rpm | 4500 rpm | 4250 rpm | 3250 rpm | 2500 rpm | 1800 rpm | 1500 rpm | |
Moment of inertia | 0.27 · 10-3 kgm2 | 0.81 · 10-3 kgm2 | 1.9 · 10-3 kgm2 | 7.1 · 10-3 kgm2 | 12 · 10-3 kgm2 | 28 · 10-3 kgm2 | 59 · 10-3 kgm2 | 195 · 10-3 kgm2 | 258 · 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: | |||||||||
Without protective cover | IP00 | |||||||||
With protective cover2) and compressed air | IP40 | IP40 | IP40 | IP40 | IP40 | IP40 | IP40 | – | ||
Mass | Scale drum | ? 0.28 kg | ? 0.41 kg | ? 0.68 kg | ? 1.2 kg | ? 1.5 kg | ? 2.3 kg | ? 2.6 kg | ? 3.8 kg | ? 3.6 kg |
Protective cover | ? 0.07 kg | ? 0.1 kg | ? 0.12 kg | ? 0.17 kg | ? 0.22 kg | ? 0.26 kg | ? 0.35 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 2) Possible only with ERA 4480; please order protective cover separately | ||||||||||