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The GE IS200DSPXH1ACA Digital Signal Processor Control Board (DSPX) is a critical component used in GE’s high-performance industrial control systems, primarily within the Speedtronic Mark VI Turbine Control System and EX2100 Excitation Control Series.1
It functions as the primary controller for various real-time, high-speed control loops in these industrial applications.2
🧠 Key Functions & Application
The DSPX board is essentially the “brain” for precise regulation and control in power generation and industrial drives:3
- Generator Field Control (EX2100): It manages the generator field control functions for the GE EX2100 Excitation Control system, which regulates the output voltage and reactive power of large synchronous generators.4
- Drives Control (Innovation Series): It serves as the primary controller for the bridge, motor regulator, and gating functions for GE’s Innovation Series Drives.5 This involves performing the complex, fast calculations needed for Pulse Width Modulation (PWM) and regulating motor speed, torque, and position.
- Logic and Processing: The board provides the logic, processing, and interface functions for the system, utilizing a high-performance Digital Signal Processor (DSP) to execute complex control algorithms in real-time.6
⚙️ Technical Features
The IS200DSPX series boards are designed for reliability and high-speed industrial use:7
| Feature | Description |
| Processor Speed | Typically operates at 60 MHz for rapid processing and response. |
| Components | Includes the main DSP, standard memory components (FLASH, RAM, NVRAM), and an Application-Specific Integrated Circuit (ASIC) for custom logic functions. |
| Memory | Uses FLASH for storing the boot images and code, RAM for program execution, and NVRAM for nonvolatile data storage (e.g., system history). |
| I/O Interfaces | Features various I/O connections, including differential High-Frequency Inputs (HIFI) for interfaces like tachometers and serial interfaces (ISBus). |
| Diagnostics | Includes features like a watchdog timer and stack overflow detection to ensure system integrity and generate a hard reset if a critical fault occurs. |
The last three characters of the part number, H1ACA, indicate the specific hardware revision and/or firmware version of the board, which may denote minor changes in I/O configuration, memory size, or specific feature sets compared to other revisions like AAA or BBD.
