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GE DS200TCEAG1B

  • Product Name: GE DS200TCEAG1B Mark V Emergency Overspeed and Flame Detection Processor Board (TCEA)
  • Product Introduction: The DS200TCEAG1B is a P1 Protective Core board for the GE Speedtronic Mark V system. It is an independent safety processor executing overspeed trip and flame-loss trip logic outside the main control loop and IONET network.
  • Technical Specifications:
    • Series: Mark V / Speedtronic / DS200
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Detailed content

    • Hardware Group: G1; Revision: B (enhanced)
    • Processor: Intel 80196 16-bit microprocessor (runs independently of the main controller)
    • Memory: Multiple PROM/EEPROM sockets for protection firmware and trip thresholds
    • Signal Inputs: 4 speed pulse inputs (HP/LP shafts), 2 flame detection pulse inputs
    • Trip outputs: 4 independent hardwired trip outputs (24 VDC / dry contact)
    • Communication: IONET (2 Mbps on Rev B), 2 bayonet connectors
    • Configuration: ~30 jumpers (J1–J30) for IONET address, trip frequency, pulse selection, shaft config
    • Protection: 3 on-board fuses, surge suppression, overvoltage/overcurrent protection, EMI/RFI filtering
    • Isolation: ≥ 2,500 V AC (field-side vs. protective core-side)
    • PCB: Industrial-grade conformal coating
    • Dimensions: ~168 mm × 150 mm × 55 mm
    • Weight: ~0.91 kg
    • Operating temperature: –40 °C to +85 °C
    • Humidity: 5 %–95 % RH (non-condensing)
    • Reference manual: GEH-6153
  • Functional Features (Rev B enhancements): Trip drive current increased by 50%; enhanced channel-level fault diagnostics; IONET speed raised from 1 Mbps to 2 Mbps; reinforced EMI/RFI filtering.
  • Working Principle: The board receives raw sine-wave inputs from magnetic pickup units (MPUs) for shaft speed and pulse signals from UV/IR flame detectors. All safety logic runs locally on the 80196 processor; when speed exceeds the calibrated threshold or flame is lost, the board drives fail-safe hardwired relay outputs to initiate an emergency turbine trip — completely independent of the main controller.
  • Application Scenarios: P1 protective core of Mark V systems for gas turbines and steam turbines; independent emergency overspeed and flame-out protection.
  • Installation Requirements: Install in the dedicated slot of the Mark V control cabinet P1 protective core section; configure the ~30 jumpers per GEH-6153 before power-up.
  • Usage Notes: Because this is a safety-critical protective board, do not substitute revision levels arbitrarily — the B revision has different drive current and IONET speed than A; verify firmware PROM matches the plant’s protection settings.

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