WOODWARD 9907-164

1. Product NameWoodward 9907 – 164 505 Series Digital Microprocessor Turbine Governor Module
2. Product DescriptionThe Woodward 9907 – 164 is a high-performance digital microprocessor-based governor module belonging to the Woodward 505/505E series. It is specifically designed for the precise control and monitoring of industrial turbines, such as steam turbines, gas turbines, turbo-generators, and turboexpanders.
   This module achieves accurate regulation of turbine speed and load by driving steam inlet valves through split-range actuators. It integrates advanced PID control algorithms and multiple protection mechanisms, including critical speed avoidance, valve limiting, and emergency shutdown functions, which can effectively prevent equipment damage caused by overspeed, overload, and other abnormal conditions. Equipped with a 30-key multi-function keypad and a two-line 24-character display, it supports menu-driven on-site programming and parameter configuration, enabling users to easily monitor operational status and perform debugging without additional programming tools.
3. With excellent communication capabilities, it can seamlessly connect with DCS/PLC systems and SCADA monitoring platforms via communication interfaces like RS – 232/RS – 422, supporting Modbus protocols for remote monitoring and data collection. Its IP56 protection rating allows it to operate stably in harsh industrial environments such as power plants, petrochemical factories, and offshore platforms, and it plays a crucial role in scenarios such as power generation, oilfield driving equipment control, and waste heat recovery systems.
4. Product Parameters

   Parameter Category	Specific Content
   Power Supply Parameters	Input voltage: +24V DC, 1A; compatible with industrial-grade power supply standards
   Input and Output Parameters	16 contact inputs (4 dedicated, 12 programmable); 6 programmable current inputs (4 – 20mA); Analog output signal: 0 – 10V DC
   Communication Parameters	Communication interfaces: RS – 232/RS – 422; Supported protocols: Modbus; features dual independent Modbus communication links for system integration
   Environmental Adaptation Parameters	Operating temperature range: -20°C to +60°C; Storage temperature range: -40°C to +85°C; Can operate at 95% relative humidity (20 – 55°C) for 48 consecutive hours

5. Product Specifications

   Specification Category	Specific Content
   Structural Specifications	Dimensions: 14 inches wide, 11 inches high, 4 inches deep; Weight: 4.45kg; Enclosure protection rating: IEC 60529, IP56
   Operation Interface Specifications	Equipped with a 30-key multi-function keypad; Display: two-line 24-character display for showing operating parameters and fault information
   Functional Specifications	Control modes include speed control, load control, and synchronous control (isochronous mode); Supports automatic start sequences for both hot and cold starts, and has first-out indication function for shutdown fault diagnosis
   Certification Specifications	Complies with CE and UL certifications; Conforms to Class 1, Division 2 standards, and can be used in explosive environments with optional enclosures