GE DS200DDTBG1A – LCI Auxiliary I/O Terminal Board (DDTB)

Technical Specifications

• Manufacturer: General Electric (GE)
• Model: DS200DDTBG1A
• Series: LS2100 Series, Mark V Control System
• Board Type: LCI Auxiliary I/O Terminal Board
• Power Supply: +5 VDC, 6 A (from ADMA board); 18–32 VDC (28 VDC nominal) external power
• Analog Outputs: 4 buffered analog voltage outputs
• Relay Channels: 12 relay output channels
• LED Indicators: 17 LEDs (DS1–DS17) for power, communication, and fault status
• Configuration Jumpers: 12 × 3-pin row jumpers for customizable I/O settings
• Input Types: High-voltage AC, high-current, low-current, 4–20 mA current loop, undedicated voltage inputs
• Dimensions (H×W×D): 159 mm × 170 mm × 25 mm
• Weight: 0.15 kg (net weight)
• Operating Temperature: -30°C to +65°C (-22°F to 149°F)
• Storage Temperature: -40°C to +70°C (-40°F to 158°F)
• Relative Humidity: 5%–95% (non-condensing)
• Protection Rating: IP20 (industrial enclosure protection)

Key Features

1. High-Voltage Signal Conditioning & Isolation
   • Accepts diverse industrial signals including high-voltage AC, high-current CT inputs, low-level Hall-effect device signals, and 4–20 mA loops.
   • Provides electrical isolation, scaling, and buffering to protect the DSP board from harsh, noisy field signals.
2. Versatile I/O & Relay Control
   • Offers 4 buffered analog outputs for precision control of analog devices (e.g., valves, meters).
   • Integrates 12 relay channels for high-current switching of external loads (motors, pumps, contactors).
3. Real-Time Diagnostics & Configuration
   • 17 on-board LEDs deliver immediate visual feedback on power, I/O status, and fault conditions for fast troubleshooting.
   • 12 configurable jumpers enable flexible customization of input/output ranges and modes to match application requirements.
4. Seamless System Integration
   • Connects via high-density connectors and ribbon cable to the DS200ADMA daughterboard, which mounts on the DS200DSPC DSP board.
   • Fully compatible with GE LS2100 static starter and Mark V turbine control systems for plug-and-play deployment.
5. Rugged Industrial Reliability
   • Designed for continuous operation in extreme temperatures and high electrical noise environments.
   • Compact, durable PCB construction with conformal coating for resistance to dust, moisture, and vibration.

Application Scenarios

• Power Generation (Core Application)
  • Gas/Steam Turbine Control: Interfaces field sensors (pressure, temperature, vibration) and actuators in GE Mark V turbine control systems.
  • Static Starter Systems: Supports LS2100 static starter control for gas turbine startup, managing auxiliary I/O and power switching.
  • Power Plant Auxiliaries: Controls motors, valves, and contactors for plant balance-of-plant systems.
• Oil & Gas Industry
  • Compressor & Pump Stations: Manages I/O for turbine-driven compressors and pumps in refineries, pipelines, and LNG facilities.
  • Offshore Platforms: Provides reliable signal conditioning for critical process and safety systems in harsh marine environments.
• Industrial Automation & Process Control
  • Heavy Machinery Control: Interfaces sensors and relays for large-scale industrial equipment (steel mills, paper mills).
  • Distributed Control Systems (DCS): Acts as an auxiliary I/O hub for GE Mark V DCS, integrating field devices with control processors.
• Renewable Energy
  • Hydroelectric Power Plants: Controls turbine governors, flow sensors, and generator auxiliaries in hydro control systems.