Description

The FOXBORO H90QHQE013N0 is a highly specialized and critical safety system power supply module designed for the Foxboro Triconex Tricon CX platform, a premier Triple Modular Redundant (TMR) Safety Instrumented System (SIS) and Critical Control System. This module functions as the main system power supply, responsible for converting the plant’s incoming AC mains voltage (typically 120/240VAC) into the precise, regulated, and isolated low-voltage DC power required to operate the Tricon CX controller’s main processor, I/O modules, and communication cards. The core function of the FOXBORO H90QHQE013N0 is to provide a clean, stable, and highly reliable power source, which is the fundamental bedrock for the entire safety system’s operation. Its value is absolute, as any instability or failure in the power supply can compromise the integrity of the safety functions, making this module a cornerstone of system availability and reliability.

Engineered to meet the extreme demands of critical control applications, this power supply is built with robustness and fault tolerance in mind. It is designed to handle fluctuations and transients in the incoming AC power, ensuring that the sensitive electronics of the Tricon CX system are protected from electrical noise and disturbances. The integration of the FOXBORO H90QHQE013N0 into a safety architecture is a critical step in ensuring that the TMR controllers and I/O subsystems receive uninterrupted and conditioned power, enabling them to execute their protective functions with the highest possible integrity. Its design often incorporates features like power factor correction, high efficiency, and comprehensive status monitoring, contributing to lower total cost of ownership and enhanced system diagnostics.

Technical Specifications

Main Features and Advantages

The FOXBORO H90QHQE013N0 is characterized by its exceptional reliability and design features tailored for critical systems. A primary advantage is its robust and redundant design architecture. While a single power supply is highly reliable, the Tricon CX system is designed to accommodate redundant power supplies (N+1 configuration). The FOXBORO H90QHQE013N0 supports hot-swappable replacement, meaning a faulty unit can be removed and a new one inserted without requiring a shutdown of the entire safety controller. This feature is invaluable for maintaining continuous system availability and allows for preventive maintenance without process interruption.

Enhanced Protection and Diagnostics: The power supply incorporates comprehensive protection mechanisms against overvoltage, overcurrent, and overtemperature conditions. These protections safeguard not only the power supply itself but also the expensive Tricon CX controllers and I/O modules downstream from electrical damage. Furthermore, the FOXBORO H90QHQE013N0 provides vital status and diagnostic signals back to the Tricon CX system. It can communicate its health status, including power good signals and failure alarms, which can be integrated into the system’s overall diagnostic and alarm management strategy, allowing for immediate operator awareness of a power issue.

Clean and Stable Power Delivery: The module is engineered to provide extremely stable output voltages with low ripple and noise, which is crucial for the precise operation of the TMR voting logic and analog I/O circuits. The active Power Factor Correction (PFC) minimizes harmonic distortion reflected back onto the AC mains, improving overall power quality and efficiency. Its convection-cooled (fanless) design eliminates a common point of failure—the cooling fan—resulting in higher mean time between failures (MTBF) and silent operation, making the FOXBORO H90QHQE013N0 exceptionally suitable for harsh industrial environments where reliability is paramount.

Application Field

The FOXBORO H90QHQE013N0 is deployed exclusively in applications where the Foxboro Triconex Tricon CX platform is installed as the Safety Instrumented System (SIS) or Critical Control System. This encompasses the most demanding and hazardous process industries globally. In the oil and gas sector, it is found on offshore platforms, in liquefied natural gas (LNG) facilities, and in refineries, providing backbone power for Emergency Shutdown (ESD) systems that protect against catastrophic events. In chemical and petrochemical plants, the FOXBORO H90QHQE013N0 ensures continuous power for systems managing Burner Management (BMS), turbine control, and high-integrity pressure protection systems (HIPPS).

The module is also critical in power generation, particularly for nuclear plant safety systems and turbine trip systems in combined-cycle plants, where unscheduled downtime is extraordinarily costly. Other key applications include pharmaceutical manufacturing, where batch processes must be protected, and pipeline transportation, where emergency shutdown and leak detection systems are vital. In every instance, the FOXBORO H90QHQE013N0 is applied as the foundational power component for a system whose sole purpose is to mitigate risk, protect human life, safeguard the environment, and prevent massive asset damage.

Related Products

Tricon CX Controller: The main TMR safety controller that this power supply module is designed to energize.

H90QHQE013N1: A potential variant or successor model with slightly different specifications.

Tricon Communication Modules: Various communication cards (e.g., for Tricon comm, Ethernet, Modbus) that are powered by this supply.

Tricon CX I/O Modules: The extensive range of analog and digital input/output modules that draw power from this system supply.

Redundant Power Supply Kit: The hardware kit that allows for the installation of a second H90QHQE013N0 for N+1 redundancy.

Foxboro TXP/TMC Systems: The distributed control system (DCS) platform that often integrates with the Tricon CX SIS.