Rotary encoders

Rotary encoders are required wherever physical quantities such as rotational speed, angle of rotation, velocity or acceleration are to be monitored. In combination with cable pulls, they can also measure linear movements and lengths.
Rotary encoders from Pepperl+Fuchs are used in a wide variety of industries—from mechanical and plant engineering to material handling and the renewable energy sector. Whether heavy-duty, offshore or hazardous areas: Pepperl+Fuchs offers the right incremental or absolute rotary encoder for all application requirements. The portfolio is built on several established basic technologies:

Optical vs. Magnetic Scanning

High resolutions can be easily achieved with Pepperl+Fuchs optical rotary encoders. A code disk with radial slits is used for this purpose. An LED sends light through the radial slits to a receiver located on the other side of the code disc. The rotation of the disk modulates the light, and the receiver converts it into an electrical signal.
The magnetic rotary encoders from Pepperl+Fuchs are particularly robust and therefore ideally suited for use in harsh environments. Due to energy harvesting, the magnetic absolute rotary encoders do not require an external power supply to save their current position. As a result, they perform reliably even in the event of power failures.

Rotary Encoders with Bearing vs. Bearing-Free Rotary Encoders

In addition to rotary encoders with integral bearing, Pepperl+Fuchs also offers a selection of bearing-free rotary encoders. These sensors enable particularly space-saving installation due to their low mounting depth. Thanks to noncontact and wear-free scanning, they also ensure reliable operation even in harsh environmental conditions.

The Portfolio

Absolute Rotary Encoders

Absolute rotary encoders are used wherever precise control of motion sequences is required. Pepperl+Fuchs offers a comprehensive portfolio of absolute rotary encoders that provide information for complex control tasks.

Incremental Rotary Encoders

Incremental rotary encoders from Pepperl+Fuchs have a very high resolution of up to 50,000 pulses per revolution. By detecting rotation angles and speeds, they enable precise control of rotary movements.

Cable Pulls

Cable-pull rotary encoders are used for linear position measurement. The modular portfolio from Pepperl+Fuchs offers a wide range of variants—for reliable processes in almost any application.

Rotary Encoder Accessories

Only perfectly matched connection and mounting technology ensures optimal integration of rotary encoders. Pepperl+Fuchs offers the right accessories for every installation environment.