GE Electric | DS200FSAAG1ABA | Field Sense Assembly (FSA) module
Product Description:
The GE DS200FSAAG1ABA is a Field Sense Assembly (FSA) module designed for use within GE’s Mark V Speedtronic turbine control system. Its primary function is to serve as an interface between analog field sensors/transmitters (providing signals like voltage, current, RTDs, thermocouples) and the Mark V controller. It conditions, digitizes, and electrically isolates these critical process signals, ensuring reliable and accurate acquisition for monitoring and control logic execution.
Product Data:
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Parameter
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Specification
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Series
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GE Mark V Speedtronic Turbine Control System
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Module Type
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Field Sense Assembly (FSA)
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Typical Input Signals
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±10V DC, ±20mA DC, RTDs (100Ω Pt), Thermocouples (J, K, T, E, etc.) Scanable Contact Inputs (SCIs)
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Input Channels
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Typically 16 configurable analog input channels
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Analog Resolution
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Typically 16-bit ADC
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Accuracy
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High accuracy (specific % depends on signal type & calibration)
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Isolation
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High Voltage Isolation (>1500V) between field inputs & logic side
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Signal Conditioning
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Filtering, amplification, excitation (for RTDs), cold junction compensation (for T/Cs)
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Communication
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VME Bus communication with Mark V controller (VCMI)
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Diagnostics
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On-board diagnostics for channel health, open/short circuits
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Mounting
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Installed in designated slots within the Mark V I/O rack
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Operating Temp
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Typically -30°C to +65°C (-22°F to +149°F)
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Power Supply
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Powered from Mark V I/O rack backplane (+5V, ±15V)
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Hot Swap Capability
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Designed for replacement without shutting down the entire system (requires precautions)
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Key Features
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Signal Conditioning, Isolation, Digitization, Modularity, Diagnostics, Configurability
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Features:
- Signal Conditioning: Amplifies, filters, linearizes, and scales raw field signals.
- Electrical Isolation: Provides critical high-voltage isolation between potentially noisy/hazardous field wiring and sensitive control system logic, protecting both equipment and personnel.
- Digitization: Converts analog input signals (mV, V, mA) to high-resolution digital values for processing by the controller.
- Sensor Support: Handles a wide variety of sensor types (Voltage, Current, RTD, Thermocouple) through configurable channel settings.
- Scanable Contact Inputs (SCI): Can also read digital status inputs.
- Diagnostics: Monitors input channels for opens, shorts, over-range, and under-range conditions, reporting faults to the controller.
- Modular Design: Easily replaceable unit within the Mark V rack.
- Hot Swap Capable: Allows replacement without requiring a full system shutdown (requires proper procedures).
- VME Bus Interface: Communicates digitized data and status directly to the Mark V controller module (VCMI).
- Configuration: Channel types and scaling are configured within the Mark V control software.
Function/Role: The DS200FSAAG1ABA acts as the primary interface and signal conditioner for analog process measurements (temperature, pressure, flow, level, vibration, etc.) and digital status points coming from sensors located on or near the turbine and its auxiliaries.
Purpose: Its purpose is to accurately acquire, condition, isolate, and digitize field instrument signals, making them reliably available to the Mark V controller for critical monitoring, protection, and closed-loop control functions.
Applications & Use Cases:
- Gas Turbine Control Systems: Primary application within GE Mark V installations.
- Steam Turbine Control Systems: Used in Mark V configurations for steam turbines.
- Generator Monitoring: Acquiring generator winding/bearing temperatures, hydrogen purity, etc.
- Auxiliary System Monitoring: Lube oil temperature/pressure, fuel gas pressure/temperature, cooling water temperature, valve position feedback (analog).
- Process Variable Acquisition: Any application requiring reliable, isolated acquisition of standard analog (voltage/current) or temperature (RTD/T/C) signals within a Mark V turbine control system.
Application Fields:
- Power Generation (Gas Turbine, Steam Turbine, Combined Cycle Power Plants)
- Oil & Gas (Pipeline compression, platform power generation)
- Industrial Cogeneration Plants
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