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Woodward 9902-343
Product Name: 505 Series Turbine Control System Calibration and Interface Module
Product Introduction: The 9902-343 is a system calibration and signal conditioning module within Woodward’s 505 series turbine control system, serving power management, actuator calibration, three-phase CT/PT signal interfacing, and closed-loop signal testing within the control cabinet. It is an important component of a complete turbine digital control system.
Detailed content
Technical Specifications:
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Series: 505/505E Digital Turbine Control System
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Function type: Power supply / actuator calibration / signal conditioning / closed-loop testing
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Compatible controllers: 505, 505E, 5009FT, etc.
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Input signals: Three-phase CT/PT signals, speed signals, actuator feedback signals
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Output signals: Calibrated control commands, actuator drive signals
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Operating temperature: –20 to +60 °C (subject to companion controller)
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Mounting: DIN rail or panel mounting within control cabinet
Functional Features: Performs controller power self-check and actuator dead-band compensation; supports three-phase CT/PT interfacing and signal conditioning; provides closed-loop signal test interface; compatible with redundant platforms such as MicroNet and 5009FT; supports online system maintenance and module hot-swap (in TMR configuration).
Application Scenarios: System calibration and debugging for steam turbine control cabinets; signal conditioning for gas turbine control systems; parameter tuning for complex control algorithms in multi-valve steam turbines; turbine control system upgrade projects.
Structural Characteristics: Printed circuit board module installed within control cabinet; shares chassis backplane bus with 505 series controllers; standardized wiring terminals for easy field replacement.
Working Principle: Receives raw signals from sensors and transmitters (speed, pressure, temperature, power, etc.), processes them through internal signal conditioning, filtering, and calibration, and transmits them to the main controller for computation.
Installation Requirements:
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Install in designated slot position within standard Woodward control cabinet
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Execute wiring strictly per terminal labels and wiring diagrams
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Disconnect all power supplies before installation
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Perform system-level calibration with 505View software
Usage Precautions:
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Calibration must be performed by personnel trained by Woodward
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Disconnect high voltage before calibrating electrical sections
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Retain original factory calibration records for traceability
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Re-execute calibration procedure after module replacement
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Prohibit hot-swapping of PCBs
