UO-EM-ERC Position Switch Module



U-ONE Generation I – position switch module

System solution U-ONE

  • Monitor position ranges / electronic position switch
  • Relay contacts / switching outputs: 6 programmable, 1 diagnostics
  • Switching capacity up to 250 V AC/DC and 0.5 A
  • Preset input to automatically adjust at reference position

Electronic position switches

U-ONE Generation I – position switch module

The electronic position switch with six programmable switching outputs (each with one on and one off switching points) are available with numerous functions. The number of bits for multiturn operations, singleturn or multiturn ranges as well as the switching range inputs with invert option are programmable. They determine hysteresis values, counting direction and the unit, identification, last change and conversion factor.

Technical Data


Supply voltage 12-30 VDC
Signal outputs/Interfaces
  • 6 programmable position switches (changeover contact 250 V / 0.5 A AC/DC)
  • Status output: 1 potential-free relay output (NC contact 250 V / 0.5 A AC/DC)
  • Preset: 1 optorelay (preset input 12…30 V / 5 mA DC and handshake output (40 V / 0.1 A DC)
  • Programmable functions via decoder module UO-EM-D2 (ERCPro – software): Operating range inputs with inversion option, hysteresis value, count direction, unit, identification, last alteration (automatic input), conversion factor.
  • LED indicator: Power / Status / Relay status
Electrical connection
  • Screw terminals to connect switches
  • Series connectors to preceding and following modules (internal bus connection)
Dimensions 99.5 x 45 x 114.5 mm (modular electronics housing for DIN rail)
Device temperature range -25 °C to +70 °C
Degree of protection IP20 (switchboard installation)
Device options Combines with other modules belonging to the U-ONE System
Mechanical options
Special features and certificates UL/CSA



UOM 4L / UOM 41L (de/en)


Simplifying Cranes (de/en)


UO EM ERC (en)
Operating and assembly instructions


UOM 4L / UOM 41L basic unit + module (de/en)

Software i


UL / CSA (de/en)