Position Encoders for Servo Drives - DR. JOHANNES HEIDENHAIN GmbH - #39

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39 Absolute ECN 1113 ECN 1123 EQN 1125 EQN 1135 Incremental signals » 1 VPP 1) – » 1 VPP 1) – Line count 512 – 512 – Cutoff frequency –3 dB ‡ 190 kHz – ‡ 190 kHz – Absolute position values EnDat 2.2 Ordering designation EnDat 01 EnDat 22 EnDat 01 EnDat 22 Position values per rev 8 192 (13 bits) 8 388 608 (23 bits) 8 192 (13 bits) 8 388 608 (23 bits) Revolutions – 4 096 (12 bits) Elec. permissible speed/ Deviation2) 4 000 min–1/± 1 LSB 12 000 min–1/± 16 LSB 12 000 min–1 (for continuous position value) 4 000 min–1/± 1 LSB 12 000 min–1/± 16 LSB 12 000 min–1 (for continuous position value) Calculation time tcal † 9 ìs † 7 ìs † 9 ìs † 7 ìs System accuracy ± 60“ Power supply DC 3.6 V to 14 V Power consumption (maximum) 3.6 V: † 600 mW 14 V: † 700 mW 3.6 V: † 700 mW 14 V: † 800 mW Current consumption (typical) 5 V: 85 mA (without load) 5 V: 105 mA (without load) Electrical connection Via PCB connector 15-pin 15-pin3) 15-pin 15-pin3) Shaft Blind hollow shaft ¬ 6 mm Mech. permiss. speed n 12 000 min–1 Starting torque † 0.001 Nm (at 20 °C) † 0.002 Nm (at 20 °C) Moment of inertia of rotor Approx. 0.4 · 10–6 kgm2 Permissible axial motion of measured shaft ± 0.5 mm Vibration 55 to 2 000 Hz Shock 6 ms † 200 m/s2 (EN 60 068-2-6) † 1 000 m/s2 (EN 60 068-2-27) Max. operating temp. 115 °C Min. operating temp. –40 °C Protection EN 60 529 IP 40 when mounted Weight Approx. 0.1 kg 1) Restricted tolerances Signal amplitude: 0.80 to 1.2 VPP Asymmetry: 0.05 Amplitude ratio: 0.9 to 1.1 Phase angle: 90° ± 5° elec. 2) Velocity-dependent deviations between the absolute and incremental signals 3) With connection for temperature sensor, evaluation optimized for KTY 84-130 Functional Safety for ECN 1123 and EQN 1135 upon request Specifi cations