Our website uses functional cookies. When remaining on this site, you are explicitly agreeing to the use of those cookies.

UOM 4L basic unit

U-ONE® system: Basic unit

The universal encoder system U-ONE from Johannes Huebner Giessen combines speed, position and overspeed detection in a single unit. The system includes a universal basic unit that is connected to the electronic function modules on the switchboard via EMC proof fiber optic cable. Encased in a rugged aluminium casing the basic unit UOM 4L-1212 is designed for maximum speeds up to 3000 rpm. The device is available as construction types B5 with flange and B35 with flange and foot. To facilitate flexible configuration of the U-ONE system it is possible to arrange the ten function modules that also belong to the system side-by-side in any order.


Diameter solid shaft

11 mm or 14 mm

Supply voltage

12 - 30 VDC

Pulse rates


Resolution singleturn

12 bit (4096 pulses per revolution)

Resolution multiturn

12 bit (4096 revolutions)

Signal transmission

optical via FOC

Device temperature range

-25 °C to +85 °C

Degree of protection

IP65 / IP66


approx. 2.5 kg

Special features

Diameter hollow shaft 20 mm available

Operating and Assembly Instructions (PDF, 3.36 MB) Download
Catalog - U-ONE (PDF, 2.99 MB) Download
Case Study - Side guides/screw downs, rolling mill (PDF, 218 KB) Download
Case Study - Blast furnace skip hoist, rolling mill (PDF, 1.21 MB) Download
Case Study - Hoist/drum, rolling mill (PDF, 163 KB) Download
Case Study - RTG hoist, cranes (PDF, 1.19 MB) Download
Software U-ONE basic unit (ZIP, 10.09 MB) Download

Version: 2.0 Rev 5

Microsoft Windows® XP, Vista, 7, 8, 8.1, 10

Software CanOpen (ZIP, 2 KB) Download
Software PROFIBUS driver (ZIP, 9 KB) 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.