EtherCAT Absolute Encoders
New EPC Model A58HE and Model A58SE are EtherCAT-ready, multi-turn absolute encoders designed for harsh factory and plant environments. They are particularly suited to applications where network connectivity is required, and the encoder has to retain absolute position information after power-off events. The Model A58HE is a 58 mm encoder in a hollow bore construction, and the Model A58SE is a 58 mm shaft encoder available with either a clamping flange or synchro flange. Learn More

Energy Harvesting Kit Encoders with Absolute Position Feedback
POSITAL's multiturn kit encoders offer a unique combination of accuracy, reliability and cost efficiency. Absolute measurement versions provide 17 bit electrical resolution and multiturn position measurements with a range of more than one million revolutions. They are available with open source electrical interfaces like BiSS-C or BiSS Line (RS485). Kit encoder components include an electronics package mounted on a compact 35 mm diameter PCB and a small permanent magnet, designed to be mounted on the end of the motor’s shaft. The electronics package includes four Hall effect sensors, a powerful 32-bit microprocessor and a rotation counter powered by POSITAL’s Wiegand energy harvesting system. The energy harvesting system is based on the Wiegand effect and eliminates the need for backup batteries or complex gear systems. At any rotational speed, even the slowest, the Wiegand system generates short, powerful voltage pulses with each complete revolution. These pulses supply enough power to activate the rotation counter and related electronics so that the encoder will keep count of complete rotations at all times, even if these occur when the external power supply is unavailable. This principle, which has proven itself since 2005, ensures reliable, maintenance-free multiturn absolute position measurements.
POSITAL also provides a full line of versions for feedback for servo and stepper motors with new models that utilize the same mounting form factor as incremental kit encoders from US Digital, Broadcom and other manufacturers. These drop-in replacements makes the transition from incremental to absolute position sensing simple. This kit encoder provides absolute position feedback so that the control system always has complete information on the physical position of the mechanical components that it is directing.
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