Description
The GE IS200DSPXH1DBC, commonly recognized by its functional acronym DSPX, is a highly advanced Digital Signal Processor control board engineered for General Electric’s Speedtronic Mark VI turbine control and EX2100 excitation control systems. Operating alongside an ACLA controller, this 3U-high, single-slot printed circuit board provides critical inner-loop regulation, bridge firing circuit control, and real-time I/O processing functions to safeguard heavy industrial turbine assets.
- Manufacturer: GE Industrial Systems / General Electric
- Product Line: Speedtronic Mark VI, EX2100 Excitation
- Model Number: GE IS200DSPXH1DBC
- Functional Acronym: DSPX (Digital Signal Processor Control Board)
- Processor Frequency: 60 MHz high-speed circuit chip
- Memory Capacity: 248 kB static high-speed RAM and 512 kB flash memory BIOS
- Coating Style: Conformal coating for industrial moisture and dust protection
- Integrated Interfaces: Backplane connector (P1), vertical pin connector (P7), engineering monitor port (P6), and DSP emulator port (P5)
- Status Indicators: 1 Red (Fault) and 1 Green (Status) faceplate embedded LEDs
- Board Form Factor: 3U Single-Slot rack configuration
- Dimensions: 8.5 x 5.0 x 1.0 inches (with faceplate width expanding clearance up to 7.0 inches)
- Weight: 0.44 lbs (0.20 kg)
- Country of Origin: United States (USA)
GE IS200DSPXH1DBC
Target Applications
This digital signal processing controller is predominantly placed in high-availability power generation and propulsion architectures. Major application fields include:
- Gas and steam turbine speed regulation and governor lines
- Heavy generator excitation control and field flashing systems
- Silicon Controlled Rectifier (SCR) bridge gating and protection loops
- Industrial field voltage and field current regulation (FVR/FCR)
- Large-scale utility power plants and alternative wind energy hardware control
Operating Instructions and Safety Guidelines
- Treat this processor card as an extremely static-sensitive component; store exclusively in anti-static conductive bags and utilize ESD-grounding wrist straps during all handling routines.
- Avoid direct hands-on contact with the traces or conductive points of the printed circuit board, grasping the module only by its plastic edges or outer metal faceplate.
- Fully de-energize the Mark VI or EX2100 control rack before sliding the 3U module into its slot to avoid transient voltage damage to the 60 MHz chip or backplane pins.
- Ensure the faceplate mounting screws are securely fastened to achieve solid chassis grounding and to optimize heat dissipation pathways across the rack assembly.
Frequently Asked Questions
- Q: What primary control loops are executed directly by the internal DSPX processor?
A: The board performs critical real-time inner-loop functions, including Field Voltage Regulation (FVR), Field Current Regulator (FCR) tracking, and SCR gating signals sent directly to the accompanying ESEL board.
- Q: What is the purpose of the on-board application-specific integrated circuit (ASIC)?
A: The custom ASIC manages localized logic functions and coordinates communication between the high-speed processor chip and the diagnostic LEDs mounted on the front faceplate.
- Q: Can the IS200DSPXH1DBC run independently within the excitation rack?
A: No, this DSPX board operates as a dependent control unit that shares processing responsibility and must be paired alongside a master GE ACLA controller board.
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