Description
The TRICONEX TRICON 3481 is an Analog Output Module designed for use within the Triconex Triconex safety instrumented system (SIS), originally manufactured by Invensys and now part of Schneider Electric’s automation offerings. It plays a vital role in safety-critical applications by providing controlled analog voltage or current signals to external actuators or safety devices based on digital commands from the SIS processor module.
Product Description:
- The TRICONEX TRICON 3481 receives digital control signals from the SIS processor module. These signals represent setpoints or control commands for safety-critical process variables.
- The module utilizes a Digital-to-Analog Converter (DAC) to convert the received digital signals into a proportional analog voltage or current output. The specific output type (voltage or current) and the scaling are configurable based on the connected devices and application requirements. The analog output signal might undergo further conditioning to ensure proper characteristics (e.g., noise filtering) for driving the actuators or safety devices.
Key Functionality:
- Digital Signal Reception: Receives digital control signals from the SIS processor module.
- Digital-to-Analog Conversion (DAC): Converts the digital signals into a proportional analog voltage or current output.
- Output Signal Conditioning (possible): May condition the analog output signal to ensure proper characteristics for the connected devices.
- Analog Output: Provides a controlled analog voltage or current signal to drive actuators or safety devices.
Product Parameters and Specifications (Refer to Schneider Electric website or datasheet for details):
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- Number of Analog Output Channels: The number of independent analog output channels the module provides (often 1, 2, or 4 channels). This depends on the specific revision of the module.
- Output Type: Voltage or current-based analog output signals (exact type depends on revision).
- Output Range: The minimum and maximum voltage or current values the module can generate.
- Resolution: The number of bits used in the DAC to represent the analog output signal digitally (e.g., 12-bit resolution). This determines the precision of the output signal.
- Safety Certifications (if applicable): Certifications by regulatory bodies for use in safety instrumented systems (e.g., IEC 61508).
Finding More Information:3
Due to the potential age of this product and the acquisition of Invensys by Schneider Electric, readily available information on the TRICONEX TRICON 3481 might be limited. Here are some ways to find more details:
- Schneider Electric Website: Search for “TRICONEX TRICON 3481” or “Triconex analog output module” on the Schneider Electric website (https://www.se.com/) for product information, user manuals, and datasheets with detailed specifications.
- Legacy Triconex Resources: Search for older Invensys Triconex user manuals or datasheets online. Automation parts suppliers or industrial automation forums might have archived resources for discontinued products.
- Third-Party Supplier Information: If the 3481 is a compatible module from a third-party supplier, searching for the model number on automation parts supplier websites might reveal information about its functionalities and specifications (e.g., Moore Automation Limited Trident 3481-1 Analog Output TriPak).
Important Considerations:
- Safety-Critical Application: The TRICONEX TRICON 3481 is designed for safety-critical applications within SIS. Its selection, configuration, and maintenance should only be performed by qualified personnel with expertise in functional safety and SIS design. Improper use can lead to safety risks.
- System Integration: The analog output module is a single component within a larger SIS solution. It requires proper integration with the SIS processor module, communication modules, and the connected actuators or control devices to function effectively within the safety control loop.
