GE DS200UCPBG7A UC2000,Controller Card, Obsolete

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Based on my expertise in industrial automation, here is a detailed and high-quality description of the GE DS200UCPBG7A board, including its context as an “obsolete” part.

1. Enhanced SEO Titles

1. GE DS200UCPBG7A: Obsolete UC2000 Controller Card for Mark V Systems.
2. GE DS200UCPBG7A: The Central Processor Board for GE Turbine Control.
3. DS200UCPBG7A GE Board: High-Performance CPU for Mark V PLCs.
4. GE Mark V DS200UCPBG7A: The Brain of the UC2000 Unit.
5. DS200UCPBG7A: Critical Processor for Turbine Control Systems.

2. Brief Product Description

The GE DS200UCPBG7A is a specialized UC2000 Controller Card, also known as a Central Processing Unit (CPU) daughterboard, designed for use within the GE Speedtronic Mark V turbine control systems. As a core component, its primary function is to execute the complex control algorithms, manage the I/O, and ensure the real-time, high-speed operation of the turbine. This board is the computational heart of the UC2000 unit, providing the logic for everything from startup sequences to normal running parameters and emergency shutdowns. While it is now considered “obsolete” by the manufacturer, it remains a critical component in thousands of operational turbines worldwide.

• Part Type: Controller Card / Processor Board (CPU)
• Primary Function: To serve as the central processing unit, executing control logic and managing I/O.
• Compatibility: GE Speedtronic Mark V series turbine control systems.
• Application: Gas, steam, and wind turbine control, power generation.

3. Detailed Product Description

In the world of industrial control, the processor is everything. It’s the “brain” that receives data from the “senses” (I/O cards) and sends commands to the “muscles” (actuators and relays). The GE DS200UCPBG7A is precisely this brain for the GE Mark V system’s UC2000 unit. From my experience, this board’s function is fundamental to the system’s operational integrity, especially given its role within a Triple Modular Redundant (TMR) architecture. In such a system, three of these boards (in the R, S, and T cores) work in parallel, constantly voting on the correct action to take, a design that makes the Mark V one of the most reliable control systems ever built for power generation.

A Closer Look at the DS200UCPBG7A

The DS200UCPBG7A is a processor card that plugs into a motherboard-like card, such as the DS200UCIBGxA or DS200UCIAGxA. It is a single-board computer, often built around a powerful microprocessor (for its time, such as a 486DX4-100) that is capable of handling the high-speed and complex calculations required for turbine control. Its functions include:

• Executing Control Algorithms: The board runs the turbine’s core control logic, which determines everything from fuel flow to speed control and load management.
• Data Processing: It takes raw data from various I/O cards, such as analog and digital inputs, and processes it in real time.
• Communication Management: It manages communications with other components in the system, including other Mark V cores and the Human-Machine Interface (HMI).
• Fault Detection and Voting: In a TMR system, the UCPB boards are constantly comparing their results. If one board’s results differ from the other two, the faulty board is “voted out,” and a fault is logged, without interrupting the operation of the turbine.

The “G7A” revision on the part number indicates a later model with potential design changes, component updates, or bug fixes compared to earlier G5A or G1A versions. While the core function remains the same, the specific revision is crucial for ensuring proper compatibility and functionality within a given control system.

Key Features and Benefits

• Core of the Control System: The UCPB is the central processing unit, making it the most critical component for executing the turbine’s control logic.
• High-Speed Real-Time Control: The board’s processor is designed for real-time applications, ensuring that control actions are executed with minimal latency, which is essential for turbine stability and safety.
• Triple Modular Redundancy (TMR) Support: This board is fundamental to the Mark V’s TMR architecture, providing unparalleled reliability and fault tolerance.
• Robust Industrial Design: Like all components of the Mark V system, the DS200UCPBG7A is built to withstand harsh industrial environments, with a robust design and protective coating that ensures long-term, reliable performance.
• Onboard Diagnostics: The board includes diagnostic LEDs and test points that provide quick visual feedback on its operational status, simplifying troubleshooting for maintenance personnel.

Technical Specifications

Note on “Obsolete” Status

The designation “Obsolete” means that the manufacturer, GE, has discontinued production of this specific part. It does not mean the part is no longer functional or useful. For owners of GE Mark V systems, this means that sourcing a replacement may require looking to third-party suppliers who specialize in new, reconditioned, or repaired legacy industrial parts. The long-term reliability and robustness of these boards mean that many of them continue to function flawlessly years after they have been “obsoleted.”