IncrementalERN 1120ERN 1180ERN 1185
1) Incremental signals TTL V
PP2) V
PP2) Line count * / System accuracy1024/± 64"2048/± 32" 4096/± 18"512/± 60"2048/± 40"Reference markOneScanning frequencyEdge separation 512 lines: 100 kHz 2048 lines: 350 kHz 300 kHz –– 180 kHz Absolute position values a – 0.39 µs V Cutoff frequency –3 dB
PP2) Position values per rev–Z1 track
3) Power supply 5 V ± 10 % Current consumption 120 mA without load Electrical connection Via 15-pin PCB connector14-pin Shaft Blind hollow shaft 6 mm Mech. permissible speed n 12 000 min
–1 Starting torque 0.001 Nm (at 20 °C) Moment of inertia of rotorApprox. 0.3 · 10
–6 kgm
2 Permissible axial motion of measured shaft ± 0.5 mm Vibration 55 to 2 000 Hz 100 m/s
2 2 (EN 60 068-2-6) Shock 6 ms 1000 m/s (EN 60 068-2-27) Max. operating temp. 100 °C115 °C Min. operating temp. –30 °C Protection EN 60 529IP 40 when mounted Weight (approx.) 0.1 kg
1) * Please indicate when ordering Availability planned for end of 2008. See the September 2005 edition of the
2) Encoders for Servo drives brochure for the previous version. Limited tolerances Signal amplitude: 0.80 to 1.2 V
PP Asymmetry: 0.05Signal ratio: 0.9 to 1.1 Phase angle: 90° ± 5° elec. Signal-to-noise ratio E, F: 100 mV
3) For sine commutation: one sine and one cosine signal per revolution

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