Multiturn motor feedback systems by Sick

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Sick has developed the SES/SEM70 motor feedback systems family, setting a new standard in the field of direct drives. The company has created a multiturn variant with a mechanical gear mechanism that eliminates the need for additional components such as external buffer batteries.

The mechanical multiturn can capture up to 4,096 revolutions. The motor feedback system features a hollow shaft diameter of 25 mm and is installed directly on the motor shaft, so there is no need for any strap connections or mechanical couplings. After installation, it is also possible to read out the position of the rotor using the PGT11-S programming device, providing a reliable way of identifying installation errors. The small design saves space and weight, and is rugged, wear-free, and reliable thanks to the bearing-free technology.

Sick is also working on another size of the system featuring a hollow shaft diameter of 50 mm, plus a safety variant (SIL2-certified). The SES/SEM70 motor feedback systems are ideal for use in torque motors and rotary tables, as well as in the diverse area of direct drives within robot applications, injection molding machines, woodworking centers, semiconductor technology, and handling systems.

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