GE DS200DENQF
Product Overview
The GE DS200DENQF is a dedicated DI/DO (Digital Input/Output) module for GE’s Mark VIe gas turbine control system, and an integral component of the EX2100e excitation control platform. This module provides high-density digital signal processing capabilities, primarily used for critical functions such as protection control, condition monitoring, and logic interlocking in gas turbines, steam turbines, and generator sets.
The DS200DENQF features an industrial-grade design, supporting high-speed signal acquisition and output, making it suitable for harsh power environments (e.g., power plants, offshore platforms). Its dual redundant communication interfaces and high isolation voltage ensure stable operation even in environments with severe EMI (Electromagnetic Interference). The module communicates with the main controller via the Mark VIe system backplane, enabling seamless integration into GE’s Speedtronic™ control architecture.
Product Specifications
- Product Model: DS200DENQF
- Manufacturer: GE Energy (Mark VIe series)
- Product Type: Digital Input/Output Module
- Input Channels: 16 channels (24V DC wet/dry contacts)
- Output Channels: 16 channels (relay or solid-state output, optional)
- Input Voltage Range: 15-30V DC
- Output Load Capacity: 2A @ 30V DC (relay type)
- Response Time: ≤5ms (input), ≤10ms (output)
- Isolation Voltage: 1500V AC (between channels/channel to ground)
- Communication Interface: Dual redundant VME bus (via Mark VIe backplane)
- Operating Temperature: -40°C ~ +70°C
- Protection Rating: IP52 (front panel)
- Compatible Systems: GE Mark VIe / EX2100e
- MTBF: 300,000 hours (IEC 61709)
Structure and Composition
The DS200DENQF adopts a modular metal housing, with its internal structure comprising the following core components:
Signal Input Layer
- 16 digital inputs, utilizing opto-isolation + Schmitt trigger circuits, supporting 10kHz high-speed signal acquisition.
- Grouped into 2 sets of 8 channels each, with independent isolated power supplies for each set to prevent ground loop interference.
Signal Output Layer
- 16 digital outputs, available with mechanical relays (2A @ 30V DC) or MOSFET solid-state outputs (0.5A @ 120V AC).
- Built-in arc suppression circuits (for relay types) and overcurrent protection (for solid-state types).
Communication and Power Layer
- Communicates with the main controller (e.g., IS200ERMG) via the Mark VIe backplane bus, supporting dual redundant data exchange.
- Uses 24V DC dual power input, with hot-swap switching support.
Key Features and Advantages
High-reliability design: Complies with IEEE C37.90 surge immunity standards, suitable for harsh power plant environments.
High-speed response: Input response ≤5ms, output ≤10ms, meeting the rapid protection interlocking requirements of gas turbines.
Dual redundant communication: Achieves data synchronization via the Mark VIe backplane, preventing system shutdown due to single-point failures.
Flexible configuration: Supports dry/wet contact inputs and relay/solid-state outputs, adapting to different application scenarios.
Intelligent diagnostics: Built-in channel status monitoring, with real-time fault information accessible via ToolboxST software.
High-speed response: Input response ≤5ms, output ≤10ms, meeting the rapid protection interlocking requirements of gas turbines.
Dual redundant communication: Achieves data synchronization via the Mark VIe backplane, preventing system shutdown due to single-point failures.
Flexible configuration: Supports dry/wet contact inputs and relay/solid-state outputs, adapting to different application scenarios.
Intelligent diagnostics: Built-in channel status monitoring, with real-time fault information accessible via ToolboxST software.
Application Fields
- Gas turbine control: Used in ESD (Emergency Shutdown System), combustion monitoring, and IGV (Inlet Guide Vane) control.
- Steam turbine protection: Drives OPC (Over-speed Protection) solenoid valves and monitors vibration/displacement sensor signals.
- Power system automation: Circuit breaker condition monitoring, generator excitation control (in conjunction with EX2100e).
- Offshore platforms: Suitable for critical equipment interlocking in high-salt-fog, high-humidity environments.
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