HEIDENHAIN ROTARY ENCODERS

HEIDENHAIN ROTARY ENCODERS ECN 1123 & EQN 1135

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ECN 1100 and EQN 1100 series- Absolute rotary encoders with integral bearings.

  • Stator coupling for a surface in a plane.
  • Up to 0.5 mm of axial tolerance.
  • hollow blind shaft.
  • Positioning accuracy of down to ± 60”.
  • Capability for up to 4096 revolutions in a turn.
  • 115 °C is the maximum operational temperature.
  • Interfaces: EnDat and DRIVE-CLiQ.
  • Housing diameter ≈ 35 mm.
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Description

HEIDENHAIN ROTARY ENCODERS ECN 1123 & EQN 1135

HEIDENHAIN ROTARY ENCODERS

ECN 1100 and EQN 1100 series- Absolute rotary encoders with integral bearing.

Specifications ECN 1123 single turn EQN 1135 multiturn
Functional safety

for applications with up to

 As a single-encoder system for monitoring functions

• SIL 1, as per EN 61508 (further basis for testing: IEC 61800-5-3)

• Category 2, PL c as per EN ISO 13849-1:2015

As a single-encoder system for closed-loop functions

• SIL 2, as per EN 61508 (further basis for testing: IEC 61800-5-3)

• Category 3, PL d, in accordance with EN ISO 13849-1:2015

Safe in single-turn operation
PFH † 15 · 10–9 (probability of dangerous failure per hour)
Safe position1) Encoder: ±1.76° (safety-related measuring step: SM = 0.7°)

Mechanical coupling: ±2° (exclusion for loosening of shaft and stator coupling; designed for accelerations of † 300 m/s2)
interface/ordering designation EnDat 2.2/EnDat22
Position values per revolution 8388608 (23 bits)
Revolutions – 4096 (12 bits
Calculation time tcal/clock frequency ≤ 7 μs/≤ 8 MHz tcal/clock frequency ≤ 7 μs/≤ 8 MHz
System accuracy at 20 °C ±60”
Supply voltage DC 3.6 V to 14 V
Power consumption2) (maximum) At 3.6 V: ≤ 600 mW; at 14 V: ≤ 700 mW At 3.6 V: ≤ 700 mW; at 14 V: ≤ 800 mW
Current consumption (typical) At 5 V: 85 mA (without load) At 5 V: 105 mA (without load)
Electrical connection 15-pin PCB connector (with connection for external temperature sensor3))
Cable length ≤ 100 m (see EnDat description in the Interfaces of HEIDENHAIN Encoders brochure)
Shaft 1KA blind hollow shaft (¬ 6 mm) with positive-locking element
Shaft speed ≤ 12000 rpm
Starting torque (typical ≤ 0.001 Nm (at 20 °C) ≤ 0.002 Nm (at 20 °C)
Moment of inertia of rotor 0.4 · 10–6 kgm
Angular acceleration of rotor ≤ 0.8 · 105 rad/s2
Natural frequency fN (typical) ≥ 1000 Hz
Axial motion of measured shaft ≤ ±0.5 mm
Vibration 55 Hz to 2000 Hz

Shock 6 ms

 ≤ 200 m/s2 (EN 60068-2-6); 10 Hz to 55 Hz constant over 3.2 mm peak to peak

≤ 2000 m/s2 (EN 60068-2-27)
Operating temperature –40 °C to 110 °C
Trigger threshold for temperature exceedance4) 125 °C (measuring accuracy of the internal temperature sensor: ±5 K)
Relative humidity ≤ 93% (40 °C/21 d as per EN 60068-2-78); without condensation
Protection EN 60529 IP40 (read about insulation under Electrical safety in the Interfaces of HEIDENHAIN Encoders brochure; contamination from the ingress of fluids must be avoided)
Mass ˜0.1 kg