Motion feedback encoders support up to 5,000 counts per revolution

June 16, 2015 // By Julien Happich
Avago Technologies' AEDT-981x motion feedback encoders are designed to enable robust, high precision motion control applications including DC servo motors, linear and rotary actuators, factory automation equipment, 3D printers, robotics and drones.

The module series features a built-in interpolator supporting a wide range of encoding resolution from 1,000 to 5,000 counts per revolution (CPR) using a code-wheel of 11mm optical radius. The devices are industrial grade with operating temperature from -40 to +115 °C.

Compared to competitive solutions on the market, the AEDT-981x is claimed to operate with a 70% lower supply current minimizing encoder power consumption (20mA typical ICC). It has a wide spatial play tolerance of 0.4mm and code-wheel gap tuning range of +/-0.15 mm, providing ease of motor shaft alignment and enhancing photo detector signal integrity.

The 26.67x20.8x10.16mm encoder is available in a standalone module unit like the AEDT-981x or in three pre-assembled housed module kits. The AEDM-5xxx is a kit with patented snap on cover, the AEDC-5xxx is a kit with connector latch, and the AEDL-5xxx is a kit with integrated differential line driver IC supporting RS-422 outputs.

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