الوصف
The GE DS200UDSAG1AAA is a Display/Keyboard Interface Board (often classified as an Excitation Board) used in the General Electric Speedtronic Mark V Turbine Control System.1
The part number $\text{DS200UDSAG1AAA}$ indicates a specific revision of the board within the $\text{DS200}$ series. The core function of this board is to manage the Human-Machine Interface (HMI) for a control module, providing operators with local control, monitoring, and diagnostics, particularly related to the generator’s excitation control process.2
🛠️ Key Function and Specifications
| Feature | Description |
| Control System | GE Speedtronic Mark V Turbine Control System. |
| Primary Function | Display/Keyboard Interface Board (UDSA stands for Universal Display Station Assembly). |
| System Application | Provides the operator interface for a control module, often associated with the $\text{EX2000}$ or $\text{EX2100}$ excitation system, which controls the generator’s field current and voltage. |
| Processor | Features an onboard 80196 microprocessor for signal processing and control logic execution. |
| Displays | Typically includes multiple 4-character displays (e.g., 21 displays in some revisions) and various character displays (e.g., 2 rows of 40 characters) for real-time data and status presentation. |
| Diagnostic Indicators | Incorporates 32 LEDs for quick visual status and fault recognition. |
| User Input | Equipped with keypads (e.g., a total of 48 keys in some revisions), including configurable keys with status LEDs, for local operation and diagnostics. |
| Connectivity | Uses connectors, such as a 40-pin connector, to transmit and receive signals to/from other circuit boards and components in the control system. |
🔍 Understanding the Part Number
The $\text{DS200UDSAG1AAA}$ part number can be broken down to identify its characteristics within the GE product line:
- DS200: Indicates the product family, which is part of the Mark V turbine control system.3
- UDSA: The functional product abbreviation, standing for Universal Display Station Assembly (or Display/Keyboard Interface Board).4
- G1A: Identifies the hardware version or configuration.
- AAA: The subsequent letters indicate the firmware/software revision level of the board. The triple ‘A’ shows it’s a specific, generally later, revision of the $\text{DS200UDSAG1A}$ hardware.



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