TRICONEX 4119A

Description

Product Description

The TRICONEX 4119A is a critical power supply module designed for the Triconex Tricon and Trident safety instrumented system (SIS) platforms. This module, an enhanced version identified by the “A” suffix, serves as a TMR (Triple Modular Redundant) Power Supply. Its primary function is to provide conditioned, isolated, and highly reliable DC power to the main processor chassis and its I/O modules, forming the foundational power infrastructure for the safety controller. The Triconex 4119A is engineered with fault-tolerant principles and advanced diagnostics to ensure the highest level of availability for safety-critical control functions. Implementing a redundant pair of the 4119A Power Supply modules is a mandatory step in building a robust and certified Safety Instrumented System (SIS).

Product Parameters and Specifications

• Product Type: TMR Power Supply Module for Tricon/Trident Systems (Enhanced Version).
• Compatible Systems: Triconex Tricon v9, v10, v11, and Trident Safety Systems.
• Input Voltage: Typically accepts a wide-range AC input (e.g., 85-264 VAC, 47-63 Hz) and often a DC input range (e.g., 88-150 VDC) to accommodate diverse global power standards.
• Output Voltages: Provides the specific, isolated DC voltages required by the Tricon chassis backplane and its TMR processor modules (e.g., +5V, +/-12V).
• Redundancy: Designed for N+1 (1oo2) redundant configuration. Multiple 4119A modules share the load in a single chassis; if one fails, the others seamlessly take over without interruption.
• Hot Swappable: Can be inserted or removed from a powered and operating chassis without causing a system shutdown, a critical feature for online maintenance and high availability.
• Diagnostics and Alarming: Features comprehensive status LEDs (Power, Fault) and communicates detailed health and fault information to the main processors for system-wide annunciation and diagnostics.
• Safety Certification: An integral component of a TMR system certified for use in Safety Instrumented Systems (SIS) meeting IEC 61508 and other functional safety standards (e.g., TÜV).

Advantages and Features

1. Fault-Tolerant TMR Architecture: The TRICONEX 4119A is designed as a core component of a Triple Modular Redundant system. Its ability to operate in a redundant configuration ensures continuous, clean power even in the event of an internal module failure, eliminating the power supply as a single point of failure.
2. Maximum System Availability and Online Maintenance: The hot-swappable design and N+1 redundancy allow for the replacement of a faulty power module without taking the safety system offline. This is paramount for processes that cannot tolerate an SIS shutdown, maximizing plant uptime.
3. Advanced Integrated Diagnostics: The module does more than supply power; it actively monitors its own health parameters (temperature, output voltage, current) and reports any anomalies to the Tricon controller. This enables predictive maintenance and immediate system alerts.
4. Robust Design for Harsh Environments: Built to withstand the electrical noise, vibration, and temperature fluctuations found in demanding industrial environments like offshore platforms and chemical plants.
5. Guaranteed System Compatibility and Certification: As a genuine Triconex component with the 4119A revision, it ensures perfect electrical and mechanical compatibility with the Tricon chassis, preserving the overall safety certification of the installed system. The “A” suffix may indicate improved specifications or a manufacturing revision over the base 4119 model.

Application Cases in Various Fields

• Offshore Oil & Gas Platforms (ESD/F&G): Provides ultra-reliable power to the Tricon system serving as the Emergency Shutdown (ESD) and Fire & Gas (F&G) system, where any power interruption could have catastrophic safety and environmental consequences.
• Chemical and Petrochemical Plants: Supplies power to the safety controller managing critical interlocks and shutdown sequences for high-pressure reactors, furnaces, and distillation columns.
• Power Generation (Turbine Overspeed Protection): Ensures reliable power to the Tricon-based Turbine Control System (TCS) or safety system protecting large gas or steam turbines.
• Pharmaceuticals: Powers the SIS guarding critical batch processes involving exothermic reactions or hazardous materials.

Comparison with Competing Products

• vs. Standard Industrial Power Supplies: Generic power supplies are single points of failure, lack TMR architecture, are not hot-swappable, and provide no diagnostic communication to the safety controller. They are unsuitable for a certified SIS.
• vs. Redundant Power Supplies in High-Availability PLCs: While some PLCs offer redundant power, the Triconex 4119A is part of a fully TMR safety system. Its design, validation, and diagnostics are to a much higher safety integrity level (SIL 2/3) and are formally certified for safety applications.
• vs. Other Safety System Power Supplies (e.g., HIMA): Competing safety system vendors have equivalent proprietary modules. The 4119A is distinguished by its deep integration within the widely deployed and proven Tricon TMR architecture, known for its high fault tolerance.

Selection Suggestions and Precautions

1. Exact Chassis Compatibility: The 4119A module must match the specific Tricon or Trident chassis model (e.g., for a Tricon v10 system). Using an incompatible module can cause damage or system failure.
2. Mandatory Redundant Configuration: For any safety application, power supplies must be installed in a redundant (N+1) pair as per Triconex guidelines. Never operate a live safety system with only one power module if redundancy is specified.
3. Quality of Input Power Source: While robust, the module should be fed from a clean and highly reliable source. Using an Uninterruptible Power Supply (UPS) for the AC input is a critical best practice for critical SIS applications.
4. Handle with ESD Precautions: Always handle the module using proper electrostatic discharge (ESD) precautions. Ensure the chassis is properly grounded before installation.
5. Monitor System Diagnostic Alarms: Integrate the power supply status and alarms (available through the Tricon controller) into the plant’s operator HMI or alarm management system. Do not ignore local fault LEDs on the module itself.

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