The Heidenhain 557649-09, from the LC 483 series, is a compact absolute sealed linear encoder featuring a small cross-section profile for direct installation on linear guides in CNC machine tools, measuring machines, and industrial automation systems. With a 470mm measuring length (total length ML+138mm), it provides absolute position feedback without homing, using a 20µm grating period and advanced optical scanning for ±5µm accuracy class and 10nm (0.00001mm) measuring step, enabling sub-micron precision in dynamic applications up to 3m/s velocity.
It employs EnDat 2.2 synchronous serial interface with incremental 1 Vpp signals for high-speed data transmission and diagnostics, powered by low-voltage 3.6-5.25V DC. Secure mounting via end blocks and mounting spar ensures stability under acceleration up to 500 m/s², with IP64 protection against coolant, dust, and vibration. The flange socket (14-pin male) facilitates easy connection, and its lightweight design (0.72kg, 66x8x10cm) minimizes machine inertia, supporting 24/7 operation with MTBF >50,000 hours and natural aging compensation for long-term reliability in harsh manufacturing environments.
