Part Number: ERN 180 2500 35S12-03
Alternate P/N: N/A (Genuine Heidenhain Component, Fully Compatible with Heidenhain Control Systems)
Brand: Heidenhain (Johannes Heidenhain GmbH)
Product Category: Industrial Rotatory Encoder (Incremental Optical Encoder)
Product Series: Heidenhain ERN 180 Series Encoders (Suitable for High-Precision Motion Control Systems)
Core Application: Designed for high-precision position and speed detection in industrial automation, widely used in machine tools, servo systems, robotics, aerospace equipment, textile machinery, and precision machining equipment. It provides accurate rotational position feedback for motion control systems, ensuring high machining precision, stable operation, and reliable speed regulation in harsh industrial environments. Fully compatible with Heidenhain CNC systems and mainstream servo drives.
Core Features: Incremental optical sensing technology with high resolution; 2500 pulses per revolution for precise position detection; rugged metal housing with strong anti-interference performance; integrated bearing design for long service life; standard shaft diameter with flexible mounting options; differential output signal for stable data transmission; compliance with international industrial standards; low power consumption and high operational stability; suitable for high-speed rotation scenarios.
2. Electrical Specifications
Operating Voltage: 5V DC ±5% (4.75V DC ~ 5.25V DC), regulated power supply required
Power Consumption: ≤1.5W (typical), ≤2W (maximum, full load condition)
Output Signal: Differential TTL (RS-422); Channels: A, B, Z (index pulse); Signal Level: High ≥2.0V, Low ≤0.8V
Resolution: 2500 pulses per revolution (ppr); Index Pulse: 1 pulse per revolution, symmetrically positioned
Maximum Rotational Speed: 6000 rpm (continuous operation); 10000 rpm (short-term, 1 minute)
Signal Delay: ≤100ns (typical); Rise/Fall Time: ≤10ns (at 10% ~ 90% signal level)
Protection Functions: ESD Protection: ±8kV (contact discharge), ±15kV (air discharge) per IEC 61000-4-2; Short-Circuit Protection: Output channels protected against short-circuit to ground; Reverse Polarity Protection: Yes (power input)
3. Mechanical Specifications
Shaft Diameter: 12mm (solid shaft); Shaft Material: Stainless Steel (corrosion-resistant)
Housing Dimensions (D×L): 58mm × 35mm (cylindrical metal housing); Mounting Flange: 58mm diameter, with threaded mounting holes
Mounting Type: Flange mounting (face mount); Shaft Load Capacity: Axial ≤5N, Radial ≤8N
Weight: 180g (net weight, without cables and accessories)
Connection Type: 15-pin D-sub connector (female); Cable Option: Detachable cable (custom length available)
Ingress Protection Rating: IP54 (housing), IP40 (shaft end) per IEC 60529
