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The GE IS200DSPXH2BEB Digital Signal Processor Control Board (DSPX) is a key Printed Circuit Board (PCB) within GE’s industrial control platforms.1 It is primarily associated with the GE Speedtronic Mark VI Turbine Control System and is also used in other high-performance control applications.2
It functions as the primary real-time controller for complex, high-speed regulation tasks in industrial environments.3
🧠 Core Functions and Applications
The DSPX board is the computational heart of the system, utilizing a powerful Digital Signal Processor (DSP) to execute control algorithms:4
- Industrial Drives Control: It is the primary controller for the bridge, motor regulator, and gating functions within GE’s Innovation Series Drives.5 This involves accurately timing and controlling the power semiconductor switches (IGBTs) for precise motor speed, torque, and position regulation.
- Generator Field Control: The board manages the generator field control applications when integrated into the GE EX2100 Excitation Control Series.6 This function is critical for regulating the output voltage and reactive power of synchronous generators.
- Logic and Processing: The board provides all essential logic, processing, and interface functions, utilizing a high-performance 60 MHz DSP for rapid computation and response.7
⚙️ Key Technical Features
The IS200DSPXH2BEB is a specific revision (indicated by the H2BEB suffix) of the DSPX series:
| Feature | Details |
| Compatible Systems | GE Speedtronic Mark VI Turbine Control, EX2100 Excitation Control, Innovation Series Drives |
| Processor | High-performance Digital Signal Processor (DSP) operating at 60 MHz. |
| Memory | Includes FLASH (for boot code and history), RAM (for execution), and NVRAM (nonvolatile storage). |
| Custom Logic | Integrates an Application-Specific Integrated Circuit (ASIC) to perform custom logic and support functions. |
| I/O Inputs | Features five differential HIFI (High-Frequency Input) pairs for high-speed signals like tachometer or encoder feedback. |
| Interfaces | Includes two high-speed ISBus interfaces (5 Mb/s) for proprietary serial communication with other control boards. |
| Diagnostics | Two front-panel LED indicators (Status and Fault) for quick visual health checks. |
The board’s robust design, often featuring a conformal coating, allows it to withstand harsh industrial environments, ensuring reliable performance in demanding control applications.8
