WESTINGHOUSE 5X00226G03

Description

Product Description

The WESTINGHOUSE 5X00226G03 is a critical analog input module from the Westinghouse WDPF (Westinghouse Distributed Processing Family) or the later Ovation distributed control system (DCS) platform, renowned for its application in power generation and heavy industrial process control. This module functions as a high-precision interface, converting analog field signals from sensors—such as temperature elements (thermocouples, RTDs), pressure transmitters, or flow meters—into digital values for processing by the DCS controller. Its primary role is to ensure accurate and reliable data acquisition, which forms the basis for regulatory control, advanced process algorithms, and operator decision-making. The robust design of the WESTINGHOUSE 5X00226G03 incorporates filtering, isolation, and linearization to deliver stable performance in electrically noisy plant environments. As a fundamental component within a process control loop, the integrity of the measurement data provided by this module is essential for safe and efficient plant operation. The reliable performance of the WESTINGHOUSE 5X00226G03 is a cornerstone for maintaining precise control in continuous processes.

Product Parameters

• System Family: Westinghouse WDPF or Ovation DCS.
• Module Type: Analog Input Module.
• Input Channels: Typically 8 or 16 channels per module.
• Input Signals: Compatible with various analog signal types, commonly:
  • Thermocouples (Types J, K, T, E, etc.)
  • Resistance Temperature Detectors (RTDs, e.g., Pt100)
  • Millivolt signals (e.g., from strain gauges)
  • Voltage signals (e.g., 1-5V DC, 0-10V DC)
  • Current signals (e.g., 4-20 mA)
• Isolation: Channel-to-channel and/or system-to-field isolation to prevent ground loops and noise interference.
• Resolution: High resolution (typically 12-bit or higher) for accurate measurement.
• Accuracy: High accuracy class suitable for process control requirements.
• Update Rate: Deterministic scan rate synchronized with the controller’s execution cycle.
• Diagnostics: Includes status LEDs for module health and channel activity. Capable of detecting open sensor or out-of-range conditions.
• Communication: Interfaces with the DCS controller via the proprietary Westinghouse network (e.g., Westnet, later Ovation network).
• Mounting: Installs into a dedicated slot within a WDPF or Ovation I/O shelf.

Advantages and Features

• High Accuracy and Stability: Provides precise, linear conversion with low temperature drift, ensuring measurement data remains reliable over time and varying plant conditions.
• Versatile Input Compatibility: The ability to accept a wide range of sensor signals makes the WESTINGHOUSE 5X00226G03 highly flexible, reducing the variety of module types needed in stock.
• Robust Noise Immunity: Built-in isolation and filtering protect the sensitive measurement circuits from electromagnetic interference (EMI) prevalent in industrial settings like switchyards and motor control centers.
• Deterministic Performance: Offers predictable and fast data acquisition, which is critical for closed-loop control stability and timely operator alerts.
• Proven Reliability in Harsh Environments: Engineered for continuous operation in the demanding conditions of power plants, withstanding vibration, temperature extremes, and contaminants.

Application Cases in Application Fields

• Fossil Fuel Power Plant Boiler Control: Measures numerous temperatures (superheater, reheater, furnace), pressures (drum, feedwater), and flow rates critical for combustion optimization and safety.
• Steam Turbine Monitoring: Interfaces with temperature sensors on bearings and casing, as well as pressure transducers in the steam path for performance monitoring and protection.
• Chemical Processing Reactors: Acquires data from RTDs and pressure transmitters for precise batch or continuous reactor control and safety interlock systems.
• Water Treatment Facilities: Monitors pH, conductivity, flow, and tank level signals for process control and chemical dosing.

Comparisons with Competing Products

• Vs. Bailey INFI 90 (ABB) Analog Input Modules: Both are legacy DCS modules for power/process industries. The WESTINGHOUSE 5X00226G03 is specific to the WDPF/Ovation architecture, while Bailey modules use a different physical and network design. They are not interchangeable.
• Vs. Emerson DeltaV CHARM Analog Input Cards: The modern Emerson DeltaV system uses different technology. The WESTINGHOUSE 5X00226G03 represents the earlier generation of high-density, rack-based analog input hardware for its platform.
• Vs. Generic Analog Input Cards: Universal analog input cards lack the deterministic integration, proprietary network communication, and validated performance within the certified WDPF/Ovation control system that the WESTINGHOUSE 5X00226G03 provides.

Selection Suggestions and Precautions

1. Exact Signal Type Verification: Confirm the specific analog input type (e.g., J-type TC, 4-20mA) that the WESTINGHOUSE 5X00226G03 module is configured to handle. Using a thermocouple input for a 4-20mA signal will yield incorrect and potentially dangerous readings.
2. Sensor Wiring and Grounding: Use the correct wire type (e.g., thermocouple extension wire) and follow manufacturer guidelines for shielding and grounding. Improper grounding is a common source of measurement noise.
3. Cold Junction Compensation (for TCs): If used for thermocouples, ensure the module’s cold junction compensation is functioning correctly. The module should be installed away from heat sources that could affect its internal reference temperature.
4. Configuration in Engineering Tools: The module’s channel types, ranges, and engineering units must be correctly configured in the Westinghouse/Ovation engineering software. A configuration mismatch will result in faulty data in the control system.
5. Legacy System Sourcing: As a component for a mature platform, source the WESTINGHOUSE 5X00226G03 from reputable industrial automation surplus specialists who can verify functionality. Ensure compatibility with the specific system generation and firmware.

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