WOODWARD 9907-164
Product Name
WOODWARD 9907-164 Digital Microprocessor-Based Governor Control Module(Positioning: A core control unit in Woodward’s 505/505E governor series, specifically engineered for precise operation of steam turbines, turbogenerators, and turboexpanders. Core function: Managing turbine steam admission/extraction via split-stage actuators, executing auto-start sequences, and ensuring operational safety through critical speed avoidance and shutdown fault indication.)
2. Product Description
2.1 Core Positioning and Technical Advantages
As a key component of Woodward’s 505/505E governor ecosystem, the 9907-164 integrates specialized turbine control logic, field-configurable interfaces, and industrial-grade environmental resilience to address three core challenges in turbine operation:
- Inability of generic controllers to handle turbine-specific control requirements (e.g., critical speed avoidance, split-stage actuator coordination), leading to unstable speed regulation and equipment wear;
- Lack of on-site configurability, requiring complex programming for process adjustments (e.g., load changes, start-up parameters);
- Vulnerability to harsh industrial conditions (moisture, temperature fluctuations) and poor fault visibility, increasing unplanned downtime and safety risks.
2.2 Key Functions and Features
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Specialized Turbine Control Capabilities: Tailored for steam turbine operation, including control of single extraction/admission and split-stage actuators to regulate steam inlet valves. Standard features include critical speed avoidance (prevents turbine damage from resonant frequencies), valve limiters (protects mechanical components), auto-start sequences (streamlines start-up procedures), and first-out shutdown indicators (pinpoints fault causes for quick resolution) . It ensures precise speed and load regulation for turbogenerators and turboexpanders in power, oil & gas, and industrial processes.
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Field-Configurable Interface & User-Friendly Operation: Equipped with a front-panel integrated control panel featuring a 2-line × 24-character display and 30 multi-function keypad. Menu-driven software (compatible with 505 View or OP View™) allows on-site operators to configure parameters without specialized tools. Overspeed test buttons are included for convenient safety testing .
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Versatile Input/Output & Communication: Supports diverse signal integration with 16 contact inputs (4 dedicated, 12 programmable) and 6 programmable 4–20mA current inputs. Communication is enabled via RS-232/RS-422 ports with Modbus protocol, facilitating data exchange with upper-level monitoring systems . Optional I/O expansion supports integration with auxiliary sensors and actuators.
