Position Encoders for Servo Drives - DR. JOHANNES HEIDENHAIN GmbH - #51

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51 Absolute ECI 1118 Incremental signals None Absolute position values EnDat 2.2 Ordering designation EnDat 22 Position values per rev 262 144 (18 bits) Revolutions – Elec. permissible speed/ deviations1) 15 000 min–1 for continuous position value Calculation time tcal † 6 ěs System accuracy ± 120" Power supply DC 3.6 to 14 V Power consumption (maximum) 3.6 V: † 520 mW 14 V: † 600 mW Current consumption (typical) 5 V: 80 mA (without load) Electrical connection Via PCB connector, 15-pin Shaft Blind hollow shaft ¬ 6 mm, axial clamping Mech. permissible speed n †15 000 min–1 Moment of inertia of rotor 0.14 · 10–6 kgm2 Permissible axial motion of measured shaft ± 0.3 mm Vibration 55 to 2 000 Hz Shock 6 ms † 300 m/s2 (EN 60 068-2-6) † 1 000 m/s2 (EN 60 068-2-27) Max. operating temp. 115 °C Min. operating temp. –20 °C Protection EN 60 529 IP 002) Weight Approx. 0.05 kg 1) Velocity-dependent deviation between the absolute and incremental signals 2) CE compliance of the complete system must be ensured by taking the correct measures during installation.

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