WOODWARD 9907-1183

WOODWARD 9907-1183

1. Product NameWOODWARD 9907 – 1183 505E Series Turbine Digital Governor Control Module
2. Product DescriptionThe WOODWARD 9907 – 1183 is a core component belonging to the 505E turbine control series. Equipped with a 32 – bit microcontroller, it is specially designed to control various turbines, including industrial – scale standard steam turbines, utility turbogenerators and turboexpanders. It can be flexibly configured as a standalone device or work in coordination with the distributed control system (DCS) of industrial plants.
   This module has a PID structure, which is very suitable for monitoring and controlling key parameters of turbines, such as speed, load, inlet pressure, exhaust header pressure, and extraction/admission header pressure. By means of 4 – 20 mA transducers as well as PID and ratio/limiter functions, it can accurately control the extraction and admission of steam turbines and prevent the turbines from operating beyond the safe parameter range.
   It can be equipped with an optional NEMA 4X grade protective casing, which is waterproof and dust – proof, effectively protecting the internal electromechanical components from permanent damage and enabling the module to operate stably in harsh outdoor and industrial environments. In addition, it is featured with password protection and zero – speed detection functions, and supports seamless integration with industrial control systems, which simplifies the upgrading and maintenance process of the whole control system. It is widely used in power generation, petrochemical, marine and metallurgical fields.
3. Product Parameters

   Parameter	Details
   Manufacturer	WOODWARD
   Core Processor	32 – bit microcontroller
   Input Power Rating	18 – 32 VDC
   Communication Protocol	Modbus (ASCII or RTU)
   Communication Ports	2 Modbus communication ports; RS232, RS485
   Recommended Ambient Air Temperature	-25°C to +65°C
   Extreme Operating Temperature Range	-40°C to 85°C
   Control Signal Input	4 – 20 mA transducer signal
   Response Accuracy	±0.5% full scale
   Response Time	<1 ms

4. Specifications

   Specification Item	Details
   Product Series	505E Turbine Control Series
   Functional Specifications	Supports steam turbine extraction and admission control; has comprehensive safety protection functions against overspeed, underspeed and bearing failures; equipped with password protection and zero – speed detection
   Dimensions	14L×11H×4D inches (356×279×102 mm)
   Protective Performance	Optional NEMA 4X protective casing; IP 67 protection rating
   Key Features	Adopts advanced control algorithms; supports offline training and pre – testing via internal turbine simulator; has high – speed data logging function
   Compatibility	Compatible with Woodward VariStroke actuators and DSLC – II power management networks; supports CANOpen actuator connection
   Application Scope	Controls steam turbines driving generators, compressors, pumps and industrial fans; applicable to power generation, petrochemical, marine and metallurgical industrial scenarios