Manufacturing AUTOMATION

ENI58L rotary encoder with BlueBeam from Pepperl+Fuchs reaches high rotation speeds

October 9, 2018
By Manufacturing AUTOMATION

October 9, 2018 – Pepperl+Fuchs has introduced the ENI58IL rotary encoder with BlueBeam technology, which equips industry-standard rotary encoders with the precision required for rotational speeds of up to 12,000 RPM.

This is achieved by implementing a blue emitter LED and the corresponding receiver diodes. When used in conjunction with a powerful sensing chip, a highly efficient use of light is possible.

The blue light has a shorter wavelength with identical splitting width to conventional rotary encoders. The BlueBeam technology reduces the tolerance of the phase position A:B to below 10 per cent. Compared to the values that can be reached with conventional infrared technology, this more than doubles the signal quality.

Because the high-frequency sampling is less prone to interference, BlueBeam also keeps signals stable when exposed to mechanical force like shock and vibration. Another advantage is the improved calibration of the code disk, which goes above and beyond standard manufacturing procedures. During the production of ENI58IL rotary encoders, the precise insertion of the disk is verified on a microscopic level. This step leads to improved absolute accuracy for applications in which even the smallest deviations cause a noticeable loss of performance.


The ENI58IL series has interlocked bearings that withstand high loads and protect the ball bearing. Special EMC circuit protection prevents damage from electromagnetic interference.

Due to one-piece flow production, the ENI58IL incremental rotary encoders can be purchased in quantities as low as one. Various types of shafts (solid shaft, hollow shaft, recessed hollow shaft), flanges, (clamping, servo, square) and connections (axial and radial M23 or M12) are available.

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