UO-EPN / UO-SPN (communication module)

Universal encoder systems

System solution U-ONE(-SAFETY)-LWL
  • UO-SPN-1: Communicates safe position and speed to a safety controller via PROFIsafe protocol
  • UO-EPN-2: Communicates position and speed to a standard controller via PROFINET IO
  • Resolution 13 bit singleturn / 15 bit multiturn
  • Options: Without SIL/PL certification (UO-EPN-2); it is possible to combine 2 bus modules within a system
Absolute encoders
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The new position signalers with PROFINET

The communication modules of the U-ONE(-SAFETY) second generation transmit the position, speed and status data of the shafts that need to be monitored to a higher-level controller. They feature a PROFINET IO interface. In the UO-SPN safety design (certified up to SIL 2 / PL 2), the programmable parameters reference the counting direction, the idleness tolerance, the preset value, the integration time and the size of the monitoring window. In the UP-EPN standard design, only the counting direction can be parameterized.

Technical Data

AttributeValue
Supply voltage

Power supplied via controller module

Signal outputs/Interfaces
  • PROFINET IO |  UO-EPN
  • PROFIsafe via PROFINET IO |  UO-SPN
  • Resolution 13 bit singleturn / 15 bit multiturn
  • Bus addressing with rotary coding switch
  • Configurable functions:
    • UO-EPN: Counting direction
    • UO-SPN: Counting direction, standstill tolerance, preset, integration time safe/unsafe, size of monitoring window
  • LED indicators: Operating conditions/warning
Electrical connection

UO-EPN: RJ45 connector (2x)
UO-SPN: M12 connector (2x) 
Internal bus connection to preceding and following modules

Dimensions
  • UO-EPN: 100 x 25 x 110 mm (modular electronics housing for DIN rail bus connector)
  • UO-SPN: 100 x 60 x 110 mm (modular electronics housing for DIN rail bus connector)
Device temperature range

-25 °C to +60 °C

Degree of protection

IP20 (switchboard installation)

Device options
  • Combines with other modules belonging to the U-ONE(-SAFETY)-LWL-System
  • Combine of 2 bus modules possible within one system (UO-EPN/SPN/EPB/SPB)
Mechanical options

-

Special features and certificates

USL(H) 42 and associated modules UO-S…: SIL 2 (DIN EN 61508); PL d (DIN EN ISO 13849)

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