Basic Information

• Model: IS200DSPXH1DB (DSPX: Digital Signal Processor eXtended Control Board, basic/early revision of IS200DSPXH1D series)

• Brand & Series: GE Speedtronic Mark VI / Mark VIe Turbine Control System, EX2100 Synchronous Generator Excitation Control System

• Product Type: DSP Digital Signal Processor Core Control Board, High‑Speed Signal Processing Module for Excitation/Turbine Control, ISBus Splitter Communication Switch

• Compatible Systems: GE Mark VI, Mark VIe TMR (Triple Modular Redundant) Control System, EX2100 Excitation System, compatible with VME backplane, ISBus, EPSM power modules, ERIO/ERDD excitation sub‑modules

• Country of Origin: USA

• Function: Performs high‑speed real‑time closed‑loop calculation, signal acquisition & processing, ISBus communication management, data splitting & switching, fault diagnosis and status monitoring; serves as the core signal processing and communication hub for Mark VI/EX2100 systems

Product Overview

Core Functions

1. High‑Speed Real‑Time Signal Processing: Equipped with a 60MHz DSP processor + dedicated ASIC to perform closed‑loop PID calculation, filtering, FFT analysis and fault judgment for excitation/turbine control, with millisecond‑level response to ensure control accuracy and dynamic performance.

2. ISBus Communication Splitting & Switching: Acts as a Splitter Communication Switch to manage ISBus communication, realize data splitting, routing and redundant switching between multiple control nodes, I/O modules and host computers, ensuring stable and reliable system data interaction.

3. Large‑Capacity Data Storage: On‑board SDRAM and Flash memory for storing control programs, configuration parameters, operation data and fault logs, supporting online program upgrade, parameter configuration and historical data review.

4. Multi‑Interface Debugging & Communication: Supports ISBus master/slave mode, provides P1 (VME backplane), P5 (DSP emulation), P6 (engineering monitoring) and P7 (external I/O) interfaces, enabling online debugging, program download, status monitoring and fault diagnosis.

5. Fault Diagnosis & Status Indication: On‑board red/green LEDs (Green = Normal Operation, Red = Fault/Alarm) for real‑time display of power, operation, communication and fault status; built‑in hardware watchdog, overvoltage, overcurrent and over‑temperature protection, with automatic reset, output blocking and alarm reporting on faults.

6. Redundancy Compatibility & Hot‑Swapping: Supports simplex/dual‑redundant configurations with bumpless switching; standard VME slot installation, supports hot‑swapping and online replacement without system interruption.

7. Industrial‑Grade Reliability: Wide temperature range, anti‑vibration, moisture/dust resistant, conformal coating, UL94 V‑0 flame retardant, meeting SIL safety requirements for harsh working conditions with strong EMI and hazardous areas (ATEX).

Technical Specifications

• Core Processor: 60MHz DSP + dedicated ASIC (custom control logic)

• On‑Board Memory: SDRAM (operating memory), Flash (program/parameter/log storage)

• Power Supply: 24VDC (nominal), range 18–32VDC, isolated redundant power supply from EPSM Exciter Power Supply Module

• Power Consumption: Typical 8W, max ≤8.5W

• Communication Interfaces: ISBus (master/slave mode), VME backplane (P1), DSP emulation port (P5), engineering monitoring port (P6), external I/O port (P7)

• Status Indication: 2 LEDs (Green = Normal Operation, Red = Fault/Alarm)

• Protection Functions: Overvoltage, overcurrent, over‑temperature, short‑circuit, watchdog reset, communication fault protection

• Temperature: Operating -40°C to +85°C; Storage -40°C to +85°C

• Relative Humidity: 5%–95% (non‑condensing)

• Form Factor: Standard 6U VME board, fits Mark VI standard cabinet VME slots, hot‑swappable

• Protection Rating: IP20 (cabinet‑mounted), conformal coating, UL94 V‑0 flame retardant, anti‑EMI/anti‑vibration design

• Certifications: IEC 61508 SIL 2, CE, UL 61010‑1, ATEX (hazardous location approved)

• MTBF: >150,000 hours

Typical Applications

• High‑speed DSP control, closed‑loop regulation and signal processing for EX2100 excitation systems in Mark VI gas/steam turbines

• Real‑time acquisition and closed‑loop control of synchronous generator excitation current/voltage, power factor, speed, temperature and other parameters

• ISBus communication splitting, data switching, redundant routing and multi‑node cooperative control for turbine control systems

• Excitation/turbine control for generator sets in combined‑cycle power plants, thermal power plants, petrochemical drive units and offshore platforms

• Upgrades, DSPX module replacement and control performance optimization for legacy Mark VI/EX2000 systems