Heidenhain Encoder ERN 138.020-2040 id 385 489-06

Description

Heidenhain Encoder ERN 138.020-2040 id 385 489-06

Electrical Specifications

• Interface / Output Signal: Sinusoidal signals ~ 1 Vpp (±20%)
• Supply Voltage: 5 V DC ±0.25 V
• Signal Type: Incremental (sine/cosine signals)
• Reference Mark: 1 reference pulse per revolution
• Current Consumption: Approx. 130 mA (typical for ERN series)

---

Resolution & Accuracy

• Line Count (Resolution): 2048 lines per revolution
• System Accuracy: ±20 arc seconds
• Interpolation: High-resolution interpolation possible via controller

---

Performance Data

• Max. Output Frequency: Up to 210 kHz
• Max. Speed: Up to 15,000 rpm
• Signal Characteristics:
  • Phase shift: 90° ±5°
  • Amplitude ratio: 0.9–1.1

---

Mechanical Specifications

• Shaft Type: Tapered shaft (~9.25 mm, taper 1:10)
• Moment of Inertia: 2.6 × 10⁻⁶ kg·m²
• Starting Torque: ~0.01 Nm
• Permissible Axial Motion: ±0.5 mm

---

 Environmental Conditions

• Operating Temperature: Up to 100–120°C
• Protection Class: IP40 (mounted condition)
• Shock Resistance: Up to 2000 m/s²
• Vibration Resistance: 55–2000 Hz range

---

Connection Details

• Signal Output: Sine/Cosine (analog incremental)
• Electrical Connection: Typically 12/14-pin connector (model dependent)
• Mounting: Integrated bearing with stator coupling

---

Key Features

• High precision incremental feedback
• Excellent signal quality (low noise)
• Suitable for servo control loops
• Compact design for motor integration
• High-speed capability

---

Typical Applications

• CNC machines
• Servo motors
• Industrial automation systems
• Robotics
• Packaging & printing machines