A strong duo

Products29. October 2020 by Tobias Prem - Reading Time 3 min.

Our REX portfolio offers a solution for nearly every DC 24 V application. The system consists of different supply and power distribution modules, the REX12 one- and two-channel electronic circuit protectors up to 10 A, which can be mounted side by side modularly and the newly developed electronic circuit protector REX22.

The perfect combination in the REX portfolio: REX22 and CPC12

These additional types are available in fixed and adjustable current ratings up to 20 A. The system is completed with a variety of ControlPlex® communication interfaces.

In mechanical engineering, primary pulsed switch mode power supplies and the corresponding DC 24 V-load circuits are mainly protected by electronic fuses today. Thus, reliable operation, simple trouble-shooting and a maximum of machine and system availability are paramount.

In mechanical engineering, primary pulsed switch mode power supplies and the corresponding DC 24 V-load circuits are mainly protected by electronic fuses today. Thus, reliable operation, simple trouble-shooting and a maximum of machine and system availability are paramount.

REX22 protects all DC 24 V load circuits selectively and restricts the current output linearly during switching on or before tripping. In case of a short circuit, the restriction leads to a current limitation of a defined value within a set time period. The device, also called »I²t-Limiter«, effectively protects switch mode power supplies with low power reserve. To switch on powerful load circuits without any effort, the limited current is made available for a longer time period. The electronic trip curve, comparable to a C- or D-characteristic curve, therefore, offers an additional solution for protecting drive engineering, control technology for frequency converters, multiphase motors and also sensitive relay contacts in the »SAFETY« area. For further load types the REX12 with its B- or C-characteristic curve is the perfect protection solution.

The REX-system is completed by a variety of communication interfaces. The EM12D ControlPlex® supply modules for IO link and modbus RTU allow an extremely fast connection and data exchange to the control unit. The CPC12 ControlPlex® Controller provides the connection to the PROFINET and EtherCAT fieldbuses. The bus controllers also have a webserver. Therefore, the data exchange and the parameterisation are possible at the fieldbus level, IP address or JSON format. Further solutions for Ethernet/IP and modbus-TCP and OPC-UA are already in development. The CPC12 ControlPlex® Controller allows a quick overview of the total system and transfers a lot of diagnostic information to the superordinate control unit. The total system allows complete transparency of the DC 24 V power supply – providing the required information to maintain machine and system uptime – Predictive Maintenance and Conditional Monitoring at its best.

YOUR BENEFITS

[Translate to Englisch:]

REX22

  • Transparency and flexibility through adjustable current ratings via slide
  • Increase uptime through calculatable limited max. current
  • Increase availability - also load circuits with higher power demand can be protected, without unwanted tripping

CPC12

  • YOUR BENEFITS

     

    REX22

    •        Transparency and flexibility through adjustable current ratings via slide

    •        Increase uptime through calculatable limited max. current

    •        Increase availability - also load circuits with higher power demand can be protected, without unwanted tripping

     

    CPC12:

    • Increase of the machine and system uptime through clear trouble-shooting
    • High transparency and remote diagnostics via PROFINET, EtherCAT, Ethernet/IP and modbus-TCP
    • Saves time and costs through easy SPS-integration - from the electrical design to the first operation
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