Optical incremental encoders suit industrial motion control

Posted By : Nat Bowers
Optical incremental encoders suit industrial motion control

Expanding on the company’s market-proven HEDS-914x module series, Avago Technologies has announced a series of high resolution 3-channel optical incremental encoder modules. The AEDT-981x has been 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 AEDT-981x module series features a built-in interpolator supporting a wide encoding resolution range from 1,000 to 5,000CPR using a codewheel of 11mm optical radius with a gap range of ±0.15mm. Compared to competitive solutions on the market, the AEDT-981x is 70% lower in supply current minimising encoder power consumption and has a wide spatial play tolerance and codewheel gap, providing ease of motor shaft alignment and enhancing photo detector signal integrity.

Measuring 26.67x20.8x10.16mm, the encoders feature typical current consumption of 20mA, spatial play tolerance of 0.4mm and operating temperature range from -40 to +115°C.

Hassan Hussain, Vice President and General Manager, Motion Control Product Division, Avago, comments: “With recent advances in automation, robotics and control systems, we have witnessed a dramatic increase in the number of new applications that need higher encoding resolution and lower power consumption. Even customers of our legacy HEDS-914x products have demanded a more robust, higher performance motion encoder solution to fulfil their new application requirements. The AEDT-981x is not only an integrated response to the new requirements of our customers, but also this series of encoders has been provisioned to support next-gen high precision motion control applications.”

The 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. Samples and production quantities are available now.

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