Manufacturing AUTOMATION

Pepperl+Fuchs announces ENA58IL, ENA36IL rotary encoders

December 5, 2014
By Alyssa Dalton

Dec. 5, 2014 – Pepperl+Fuchs describes its ENA58IL and ENA36IL magnetic absolute rotary encoders as next-generation encoders that combine precision and high-speed resolution in a compact design.

Promising to maximize process reliability, efficiency and service life, the models are based on a magnetic detection principle and use a two-axis Hall sensor. This measures changes in the magnetic field allowing the angular measurement to be generated by the encoder electronics. Meanwhile, a Wiegand sensor turns these single-turn absolute rotary encoders into multiturn absolute rotary encoders. When a permanent magnetic field near the Wiegand sensor is rotated, it generates a change in the direction of the magnetic field in the core of the Wiegand sensor, and in turn, creates an induction voltage in the coil around the sensor which eliminates the need for an internal battery. The units boast accuracies of 1 to 0.1 degree.

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