Description The Woodward 9907-164 is a digital microprocessor controller module used in 505 and 505E governor control systems for steam turbines and turbomachinery. It provides integrated operator interface functionality with configurable control logic for turbine speed, load, and extraction management. Technical Specifications Condition New / Never Used Surplus Brand Woodward Category HMI / MMI / OIT Part Number 9907-164 Subcategory Operator Interface Input Voltage +24 VDC, 1 A Display Type Two-Line Text Display Display Capacity 24 Characters Per Line Keypad 30 Multi-Function Keys Communication Ports RS-232 / RS-422 Protocol Support Modbus Software Compatibility 505View, OpView™ Enclosure Rating IP56 (IEC 60529) Operating Temperature -4 to +140 °F Storage Temperature -40 to +185 °F Humidity Rating 95% RH at 20–55 °C (48 Hours) Dimensions 14 × 11 × 4 in Weight 9.11 lbs Information About 9907-164 The 9907-164 is a Woodward digital microprocessor controller module developed for the 505 and 505E series governor systems, which are widely used in steam turbine, turbogenerator, and turboexpander applications. The controller is designed to manage turbine operation involving single extraction and/or admission by controlling split-stage actuators that drive steam inlet valves. Configuration is performed directly in the field using menu-driven software accessed through the integrated front-panel operator interface, eliminating the need for external programming tools. Key Features: 505 And 505E System Compatibility: Designed specifically for Woodward 505 and 505E microprocessor-based governor controllers. Integrated Operator Interface: Front-mounted control panel with keypad and display enables local configuration and monitoring. Steam Turbine Control Capability: Supports speed, load, and extraction/admission control using split-stage actuators. Menu-Driven Configuration Software: Allows on-site setup using 505View or OpView™ without additional hardware. Industrial Environmental Protection: IP56-rated enclosure ensures reliable operation in harsh turbine environments. Built-In Overspeed Test Controls: Dedicated buttons support critical turbine safety verification procedures. The 9907-164 delivers the reliability and precision required for digital governor control in Woodward 505 and 505E steam turbine systems.
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