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GE DS200DMCBG1A

Product Name: GE Mark V Speedtronic DOS/DUP Processor Board (DSP Control Board)
Product Introduction: The DS200DMCBG1A is a high-performance DSP-based processor board in GE’s Mark V Speedtronic DS200 series, designed for gas and steam turbine control. It executes real-time control algorithms and interfaces directly with local I/O subsystems, reducing VME backplane load.
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Detailed content

Technical Specifications:
  • Manufacturer: General Electric
  • Series: Mark V / Speedtronic DS200
  • Type: DOS/DUP Processor Board (DSP Control Board)
  • Processor: PowerPC, ≥400 MHz
  • Memory: 128 MB SDRAM + 256 MB Flash (10-year data retention)
  • Control Cycle: ≤1 ms (turbine speed/power closed loop)
  • Redundancy: TMR (Triple Modular Redundant), 2/3 voting, 0-second switchover
  • Local I/O: 3 × 26-pin connectors + 1 × 40-pin connector
  • Hardware Configuration: 19 function jumpers (address, interrupt, redundancy mode)
  • Indicators: 2 × LED (CR1/CR12) red fault indicators
  • Reset: Front-panel reset button (3-second long press clears all signals and reboots)
  • Fuses: 2 × fast-blow fuses (field replaceable)
  • Operating Temperature: -40 °C to +70 °C
  • Dimensions: approx. 100 × 150 × 150 mm (W×H×D)
  • Weight: approx. 0.8 kg
  • Certifications: CE, UL, SIL 2 compliant
  • MTBF: >250,000 hours
    Functional Characteristics:
  • Single-cycle multiply-accumulate, completes sampling, computation, output, and diagnostics within 1 ms
  • TMR 2/3 voting: any single DSP board fault results in 0-second system switchover
  • 19 jumpers for hardware configuration without software programming
  • VME 64-bit bus, master/slave modes
  • Conformal coating and 5g anti-vibration design
    Working Principle: Three processor boards run synchronously and perform 2/3 voting. The board samples turbine speed, power, and excitation signals via local connectors, executes closed-loop control algorithms, and communicates with the VME backplane.
    Application Scenarios:
  • GE Speedtronic Mark V gas turbine control systems
  • Steam turbine control systems
  • Turbine control cabinets in harsh industrial environments
    Installation & Replacement Notes:
  • Power must be completely cut off and backplane supply confirmed at zero before inserting/removing the processor board
  • Replace fuses only with identical specifications
  • Press and hold reset button for 3 seconds to clear all signals and restart the board in case of intermittent anomalies

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