
73
Incremental
ERO 1225 ERO 1285
Interface
TTL 1 V
PP
Line count* 1 024 2 048
Accuracy of the graduation
2)
± 6"
Reference mark One
Scanning frequency
Edge separation a
Cutoff frequency –3 dB
i 300 kHz
j 0.39 μs
–
–
–
j Typically 180 kHz
System accuracy
1)
1 024 lines: ± 92“
2 048 lines: ± 73“
1 024 lines: ± 67“
2 048 lines: ± 60“
Electrical connection
Via 12-pin PCB connector
Voltage supply 5 V DC ± 10 %
Current consumption
(without load)
i 150 mA
Shaft*
Hollow through shaft 10 mm or 12 mm
Moment of inertia of rotor Shaft 10 mm: 2.2 · 10
–6
kgm
2
Shaft 12 mm: 2.15 · 10
–6
kgm
2
Mech. permiss. speed n i 25 000 min
–1
Permissible axial motion of
measured shaft
1 024 lines: ± 0.2 mm
2 048 lines: ± 0.05 mm
± 0.03 mm
Vibration 55 to 2 000 Hz
Shock 6 ms
i 100 m/s
2
(EN 60 068-2-6)
i 1 000 m/s
2
(EN 60 068-2-27)
Max. operating temp.
100 °C
Min. operating temp.
–40 °C
Protection EN 60 529 IP 00
3)
Weight
Approx. 0.07 kg
* Please select when ordering
1)
Without installation. Additional error caused by mounting inaccuracy and inaccuracy from the bearing of the measured shaft is not
included.
2)
For other errors, see Measuring accuracy
3)
CE compliance of the complete system must be ensured by taking the correct measures during installation.
Antriebsgeber_en_2013.indd 73 12.11.2013 06:55:58
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