IS200WETBH1BAA
IS200WETBH1BAA
IS200WETBH1BAA

GE IS200WETBH1BAA | Mark VI Series RST Analog I/O Board for Gas Turbine Control

  • Brand: GE (General Electric)
  • Model: IS200WETBH1BAA (Variant of Mark VI Series)
  • Product Type: RST Analog Input/Output (I/O) Board
  • Series: Mark VI (Gas/Steam Turbine Control Systems)
  • Core Function: Serves as a critical analog signal processing interface in GE Mark VI turbine control systems, enabling precise scaling, conditioning, and transmission of analog signals (e.g., LVDT, thermocouple, 4–20 mA) between field devices (e.g., sensors, actuators) and the turbine control unit. Designed for high-reliability industrial environments.
  • Key Specs:
    • Bus Compatibility: Proprietary Mark VI bus (compatible with Mark VI Series controllers)
    • Form Factor: 6U Eurocard (160 mm × 233 mm)
    • Input Signal Types: LVDT (Linear Variable Differential Transformer), thermocouple, 4–20 mA, ±10 V DC
    • Output Signal Types: 4–20 mA, ±10 V DC, relay driver
    • Isolation: Galvanic isolation (optocouplers, 1500 V AC channel-to-channel)
    • Operating Temperature: 0°C to +55°C (industrial-grade)
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Part number: IS200WETBH1BAA
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Description

IS200WETBH1BAA: Product Overview​
The GE IS200WETBH1BAA​ is an RST (Regulator, Sensor, Transducer) analog I/O board designed specifically for GE Mark VI gas and steam turbine control systems, a legacy platform renowned for its reliability in industrial power generation. As part of the Mark VI ecosystem, it acts as a “signal conditioner” for analog inputs from field devices (e.g., turbine blade position sensors, fuel flow meters) and analog outputs to actuators (e.g., servo valves, pumps). Its primary role is to ensure accurate signal transmission between the field and the turbine control unit, which is critical for maintaining turbine stability and efficiency.
Role in Automation Systems:
Positioned as a “field signal interface” in Mark VI architectures, the IS200WETBH1BAA performs two key functions:
  1. Signal Conditioning: Receives raw analog signals from field devices (e.g., a thermocouple measuring turbine exhaust temperature) and scales/conditions them into a format suitable for the turbine control unit (e.g., converting millivolt signals to 4–20 mA current loops).
  2. Signal Transmission: Sends conditioned analog signals to the turbine control unit for processing (e.g., adjusting fuel flow based on temperature readings) and receives control signals from the controller to drive actuators (e.g., opening a valve to increase coolant flow).
Core Functionality:
  • Mark VI Bus Compatibility: Conforms to proprietary Mark VI bus standards, ensuring seamless integration with existing Mark VI components (e.g., STCA, TCQC boards) without major system upgrades.
  • Flexible Signal Handling: Supports multiple analog signal types (LVDT, thermocouple, 4–20 mA, ±10 V DC) through configurable input channels, making it adaptable to diverse field devices.
  • Galvanic Isolation: Uses optocouplers to isolate field devices from the controller, protecting sensitive electronics from voltage spikes and electromagnetic interference (EMI) in harsh industrial environments.
  • High Precision: Provides accurate signal scaling (e.g., 12-bit resolution for analog inputs) to ensure reliable data for turbine control algorithms.
Platform Benefits (Mark VI Series):
The IS200WETBH1BAA inherits the Mark VI platform’s strengths, including:
  • Reliability: The Mark VI system is the industry standard for gas turbine control, with a proven track record of 24/7 operation in power plants worldwide.
  • Legacy Compatibility: The board is designed to work with existing Mark VI components (e.g., contactors, I/O modules), reducing the cost of system upgrades.
  • Scalability: Supports expansion with additional I/O modules to accommodate growing system demands (e.g., adding more sensors to a turbine control system).

    IS200WETBH1BAA

    IS200WETBH1BAA

Technical Specifications​
  • Model Number: IS200WETBH1BAA (Variant of Mark VI Series)
  • Manufacturer: GE (General Electric)
  • Product Type: RST Analog I/O Board
  • Series: Mark VI (Gas/Steam Turbine Control)
  • Form Factor: 6U Eurocard (160 mm × 233 mm)
  • Bus Standard: Proprietary Mark VI bus (compatible with Mark VI Series controllers)
  • Input Channels: Configurable (e.g., 8 analog inputs, 4–20 mA or ±10 V DC)
  • Output Channels: Configurable (e.g., 4 analog outputs, 4–20 mA or ±10 V DC)
  • Isolation: Galvanic isolation (optocouplers, 1500 V AC channel-to-channel)
  • Resolution: 12-bit (analog input), 10-bit (analog output)
  • Accuracy: ±0.1% (full-scale, analog input), ±0.2% (full-scale, analog output)
  • Operating Temperature: 0°C to +55°C (32°F to 131°F)
  • Storage Temperature: -40°C to +85°C (-40°F to 185°F)
  • Humidity: 5–95% non-condensing
  • Weight: 0.2 kg (0.44 lbs)
  • Certifications: CE, UL (inferred from GE industrial product standards)
Core Features & Customer Value​
1. Reliable Signal Conditioning:
The IS200WETBH1BAA’s ability to scale and condition analog signals ensures that the turbine control unit receives accurate data from field devices. For example, in a power plant, the board can precisely measure turbine exhaust temperature (via a thermocouple) and convert it to a 4–20 mA signal for the controller, which adjusts fuel flow to maintain optimal efficiency.
2. Flexible Configuration:
Configurable input/output channels allow engineers to customize the board’s functionality for different field devices, reducing the need for additional signal conditioning hardware. This flexibility saves time and money during installation.
3. Rugged Industrial Design:
The board’s operating temperature range (0°C to +55°C) and compact form factor make it suitable for harsh industrial environments. Its DIN rail mounting option simplifies installation in crowded control cabinets.
4. Easy Integration:
Mark VI bus compatibility ensures seamless integration with existing Mark VI systems, minimizing downtime and effort during upgrades. This is invaluable for facilities with legacy Mark VI installations, allowing them to enhance system capabilities without replacing entire architectures.

IS200WETBH1BAA

IS200WETBH1BAA

Typical Applications​
The GE IS200WETBH1BAA​ is widely used in industrial automation systems for:
  1. Power Generation:
    • Conditions analog signals from gas/steam turbines (e.g., blade position, fuel flow, temperature) for real-time control, ensuring stable power output.
  2. Manufacturing:
    • Used in assembly lines to process analog signals from sensors (e.g., pressure, flow) and control actuators (e.g., valves, motors).
  3. Petrochemical Industry:
    • Controls analog signals from refinery equipment (e.g., distillation columns, pumps), ensuring safe and efficient operation in hazardous environments.

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