UOL(H) 40 / USL(H) 42 SIL 2 (basic unit)

Universal encoder systems

System solution U-ONE(-SAFETY)-LWL
  • High accuracy thanks to direct gearless mounting to the application shaft plus high resolution (13 bit singleturn / 15 bit multiturn)
  • Interference-free signal transmission to the function modules in the switchboard via just one fiber optic cable (up to 1000 m)
  • High reliability even when exposed to extreme operating conditions
  • Options: Without SIL/PL certification (UOL(H) 40); through hollow shaft, solid shaft for flange or foot mounting
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The new universal basic units

The basic units of the new second-generation universal encoder systems determine and monitor speed and position. They measure the speed and angular position of the application shaft, convert electrical signals into optical signals and transmit them to the (safety) control unit with no interference via fiber optic cable. The compact basic units with an integrated LWL (FOC) transmitter are ideal for mounting onto the shaft because the electronic function modules are stored separately in the switchboard. The units are suitable for use both in new plants and as a modernization solution. Direct mounting requires no additional mechanical components such as distribution gears, distribution couplings or speed increasing gears. The systems are optionally available as certified up to SIL 2 / PL d.

Technical Data

AttributeValue
Supply voltage

15-27 VDC

Resolution
  • Singleturn13 bit (8192 steps per rotation)
  • Multiturn 15 bit (32768 rotations)
Switching outputs

Via input/output modules in the switchboard

Signal outputs/Interfaces

Via controller and communication modules in the switchboard

Maximum rotation

2800 rpm

Electrical connection

Terminal box:

  • 1 x ST connectors FOC (50/125 µm or 62.5/125 µm)
  • 2 Screw terminals (supply voltage)
Construction type / Ø shafts
  • Solid shaft (B5, B35) / Ø 11 mm, Ø 14 mm with feather key
  • Hollow shaft / Ø 20 mm with keyway
Device temperature range

-25 °C to +67 °C

Degree of protection

IP66

Weight

Approx. 3.6 kg

Device options

Via electronic function modules in the switchboard 

Mechanical options
  • Solid shaft devices: Additional foot (Bauform B35)
  • Hollow shaft devices: Through adapter shaft (for add-on units), torque brackets (on request)
  • Cable protection systems (for UOL 40)
  • Safety-integrated solid shaft mounting / hollow shaft mounting with suitably designed safety components incl. Declaration of Conformity
Special features and certificates

USL(H) 42: SIL 2 (DIN EN 61508); PL d (DIN EN ISO 13849)

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