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Triconex 3503EN High-Reliability Digital Input Module
Triconex 3503EN High-Reliability Digital Input Module
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Triconex 3511 High-Precision Triple Redundant Pulse Input Module
Triconex 3511 High-Precision Triple Redundant Pulse Input Module

Triconex 3504E High-Density Triple Modular Redundancy Digital Input Module

  • Technical Specifications
    • Input and Signal Parameters
      • It is configured with 64 commoned, DC-coupled input channels. It offers software-selectable voltage options of 24 VDC or 48 VDC, adapting to different industrial field requirements.
      • The voltage range for 24 VDC is 15 – 30 VDC with a maximum voltage of 36 VDC; for 48 VDC, the range is 20 – 72 VDC. The turn-on voltage threshold exceeds 15 VDC for 24 VDC and 32 VDC for 48 VDC, while the turn-off threshold is below 6 VDC for 24 VDC and 11 VDC for 48 VDC.
      • The nominal turn-on current is 2 – 3 mA. The input delay is less than 2 ms for 24 VDC and less than 10 ms for 48 VDC, and the minimum point isolation voltage reaches 1500 VDC.
    • Physical and Weight Parameters
      • There are conflicting data on its physical dimensions from different sources, but it is designed for integration into standard Triconex system racks. One source lists its weight as 5000 grams, while another cites approximately 0.5 kilograms, and these discrepancies may stem from differences in whether accessories are included in the weighing.
    • Environmental Parameters
      • It maintains stable operation within an operating temperature range of -40°C to 70°C, which allows it to adapt to extreme temperature conditions in various industrial sites.
      • It has a protection level of IP65, enabling it to resist the impact of dust and water in harsh industrial environments and ensuring long-term reliable operation.
Category:
Description
  • Functional Features
    • Triple Modular Redundancy and Hot-Spare Support
      • Its triple modular redundancy architecture ensures the module keeps running even when a single fault occurs. The triplicated critical signal paths verify each other’s data, guaranteeing the accuracy and reliability of input signals in safety-critical systems.
      • It supports hot-spare functionality. When a module malfunctions, the system can seamlessly switch to the spare module without shutting down the entire system, thus maintaining continuous operation of the industrial process.
    • Comprehensive Diagnostics and Clear Status Indication
      • It performs continuous self-tests, capable of detecting stuck-on and stuck-off conditions of input signals. Once a fault is identified, it promptly sends out fault alerts to avoid safety risks caused by incorrect signal transmission.
      • It is equipped with per-point status indicators that display pass, fault, and active states respectively. This allows maintenance personnel to quickly identify the operating status of each channel and locate fault points efficiently.
    • Mechanical Keying and Versatile Compatibility
      • The mechanical keying design prevents incorrect installation in the chassis, avoiding system malfunctions or module damage due to misinstallation.
      • It is compatible with multiple input types such as normally open, normally closed, and passive contacts, and can interface smoothly with a wide range of field devices, enhancing its applicability in different industrial scenarios.
  • Application Scenarios
    • Oil and Gas Industry
      • In offshore drilling platforms and onshore refineries, it integrates into emergency shutdown systems and fire and gas detection systems. It collects signals from gas sensors, emergency stop buttons, and valve position switches, and transmits signals to trigger rapid emergency shutdowns when oil and gas leaks or fires are detected.
      • In oil and gas transmission pipeline systems, it monitors signals from pressure switches and leakage detectors. It cooperates with the controller to adjust pipeline valves in a timely manner when abnormal pressure or leakage occurs, preventing pipeline bursts and large-scale leaks.
    • Chemical and Power Industry
      • In chemical plants processing flammable and explosive materials, it is used in reactor safety interlock systems and burner management systems. It collects temperature and pressure switch signals from reactors and burners, and cuts off the feeding system immediately when parameters exceed safe limits to avoid dangerous reactions.
      • In thermal power and nuclear power plants, it is applied to turbine control systems and boiler safety protection systems. It captures status signals from safety valves, pressure relief devices, and turbine operation sensors, ensuring the controller can shut down equipment in time to prevent major accidents when abnormalities arise.
    • Manufacturing and Transportation Industry
      • In automotive manufacturing lines, it integrates into production line safety control systems. It collects signals from safety door switches and photoelectric sensors on the assembly line, and stops the operation of relevant equipment immediately when operators enter dangerous areas, protecting personnel safety.
      • In rail transit systems, it is used in train operation safety monitoring systems. It collects signals from track position switches and emergency brake buttons, helping to monitor train operation status and trigger emergency measures when faults occur to ensure driving safety.
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