Product Analysis: Heidenhain 310573-03 (ERN 480)
The Heidenhain 310573-03 is a robust incremental rotary encoder from the ERN 400 series. Specifically an ERN 480 model, it is designed for heavy-duty industrial applications where HTL (Push-Pull) signal levels are required. This encoder is commonly used in general automation, material handling, and large motor drives where long cable lengths and high voltage signals are necessary to maintain communication integrity.
Robust Design and Signal Strength
The HTL (High-Transistor Logic) output of the 310573-03 operates at a voltage range of 10V to 30V DC, providing a high signal-to-noise ratio. This is particularly advantageous in environments with significant electrical noise or where the encoder is located far from the control cabinet. The ERN 480 features an integrated stator coupling and a hollow shaft design, which simplifies mounting and reduces the overall footprint of the sensor assembly.
Technical Characteristics
- Part Number: 310573-03.
- Model: ERN 480.
- Output Signal: HTL (Push-Pull).
- Line Count: 5000 (Standard for this variant).
- Shaft Type: Hollow shaft (12mm diameter).
- Power Supply: 10V to 30V DC.
- Protection Class: IP64.
- Connection: M23 or cable assembly (Ref. specific connector).
Mechanical Performance
The ERN 400 series is built for durability. The integrated stator coupling provides high torsional rigidity while allowing for radial and axial misalignments of the motor shaft. This ensures that the 310573-03 can handle mechanical shocks and vibrations without losing pulse accuracy. Its IP64 rating ensures protection against dust and water splashes, making it suitable for both indoor and outdoor industrial environments.
| Category | Specification |
| Max Mechanical Speed | 6,000 rpm |
| Shock Resistance | 2000 m/s² (6 ms) |
| Operating Temperature | -40°C to +100°C |
Application Focus
The 310573-03 is the ideal solution for machine tool auxiliary axes, woodworking machinery, and heavy-duty electric motors. Its 5000-line resolution provides sufficient granularity for precise speed regulation and position monitoring in most industrial processes that do not require sinusoidal feedback.
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