GE DS200UCIAG2A UC2000 Motherboard Assembly

الوصف

The GE DS200UCIAG2A UC2000 Motherboard Assembly is a crucial component of General Electric’s Mark V Speedtronic Turbine Control System. It functions as the foundational board for one of the control system’s processor cores, providing the structural and electrical interface for the main control and communication daughterboards.

The “A” revision in the part number (DS200UCIAG2A) indicates a minor functional or component revision of the original DS200UCIAG2 board.

🏗️ Core Function and Role in the Control System

The DS200UCIAG2A board is often referred to as the UCIA (Unit Controller Interface A) and is typically located within the R Core (Control Engine Core) of the Mark V panel, where the primary protection, monitoring, and control logic is executed.

1. Host for Critical Boards

The main purpose of the motherboard is to host and interconnect the following key daughterboards, forming the UC2000 Assembly:

• UCPB (UC2000 Processor Board): This board contains the main CPU that runs the turbine’s control sequence software and executes the core control algorithms.
• PANA (ARCNET No-LAN Driver Board): This board handles the ARCNET peer-to-peer communication between the redundant control cores (the T, R, and S cores) in the Mark V system.
• μGENI (Micro Genius I/O): Connectors are available to attach Genius I/O boards, which manage communications with field input/output (I/O) devices and sensors.

2. Onboard Signal Processing

The DS200UCIAG2A board includes an onboard microprocessor (often a 196 processor) that handles a specific data translation task:

• It receives serial pressure transducer signals from the TCSA (Fuel Skid Interface Board).
• It translates this raw data into a format that the main UCPB processor can understand and use for control purposes.

3. Features and Diagnostics

• Connectors: It is populated with connectors to supply power and exchange data between the mounted daughterboards.
• Diagnostic LEDs: The board features a block of 10 LEDs that flash to provide visual status checks. A sequential flash indicates normal health and processing, while a specific pattern indicates a diagnostic error code.
• Jumpers: Includes jumpers (e.g., JP1) typically used for configuration or manufacturing tests.

🔍 Part Number Breakdown

The General Electric part number DS200UCIAG2A provides specific details about the board: