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U-ONE® system: Incremental encoder module

The universal encoder system U-ONE from Johannes Huebner Giessen offers ten function modules in a single unit. The incremental encoder module UO-EM-FG 4 for position detection is available with three different options: shifted 90 degrees to the basic pulse phase, mechanically fixed reference pulse and inverted signals.

Other function modules belonging to the U-ONE system offer the following functions: Speed detection, electronic overspeed switch including programmable switching speeds from 0.63 rpm, various bus interfaces, diverse Ethernet connections, electronic cam controller, synchronization module and graphic display of sequential processes.


Supply voltage

12 - 30 VDC

Connection technology

Internal bus connection


COMBICON terminal block

Pulse rates


Signal amplitude

HTL (12 - 30 V or 5 V to RS 422)

Maximum frequency

100 kHz

Device temperature range

-25 °C to +70 °C

Option 90

Second pulse channel as basic channel, however, electrically phase shifted by 90°

Option N

Mechanically fixed reference pulse (N); one square-wave pulse per revolution, with inverted signal

Option G

Additional inverted output signals for basic channel, 90° channel, reference pulse including LED check

Operating and Assembly Instructions (PDF, 724 KB) Download
Catalog - U-ONE (PDF, 2.99 MB) Download
Case Study - Side guides/screw downs, rolling mill (PDF, 218 KB) Download
Case Study - RTG hoist, cranes (PDF, 1.19 MB) Download


Standard dimension drawings and connection diagrams are provided in the Operating and Installation Instructions. We would be pleased to send you individual variations as well as DXF/STEP files on request.