Woodward 9907-1183 Digital Governor

Microcontroller: Equipped with a 32-bit microcontroller, featuring powerful computing capabilities to rapidly process various control commands and data. It can control multiple types of turbines, such as industrial-scale standard steam turbines, utility turbogenerators, and turbine expanders.

Storage and Communication: Although the built-in storage capacity is not explicitly mentioned, it typically includes a certain amount of non-volatile memory to store configuration information and operation data. It has 2 Modbus (ASCII or RTU) communication ports, facilitating data interaction with other devices such as upper computers, PLCs, or distributed control systems (DCS), enabling remote monitoring, parameter adjustment, and system integration.

Power Supply and Protection: The input power is 18 - 32V DC, showing good adaptability to working power supplies. Its human-machine interface can be equipped with a NEMA 4X-class protective housing, which is waterproof, dustproof, suitable for harsh outdoor conditions, and effectively protects internal electromechanical components.

Control Function: Based on the PID structure, it precisely controls the steam extraction/admission of the steam turbine through 4 - 20mA sensors, PID, and ratio/limiter functions, while protecting the steam turbine from operating beyond its parameter range. It can monitor and control parameters such as turbine speed, load, inlet pressure, exhaust header pressure, or steam extraction/admission header pressure.

Configurability: It can be field-configured, customized according to different application requirements, and can operate as an independent device or collaborate with the distributed control system of industrial plants.

Other Features: It has a password protection function to prevent unauthorized personnel from modifying the program. It also supports multiple languages, facilitating users in different regions worldwide. In addition, the system has a dual redundancy function, improving system availability and safety, and providing backup backup guarantee in case of failures.

Power Generation Field: Used for the control of utility turbogenerators, ensuring the stable operation of generators under different load conditions and the stability and reliability of power output.

Industrial Drive Field: Can control industrial-scale standard steam turbines, providing power for equipment such as compressors, pumps, and industrial fans in industrial production, and meeting the needs of different industrial processes through precise control of the steam turbine operation.

Other Fields: Also applicable to other fields requiring precise control of steam turbines, such as petrochemical, metallurgy, and other industries, to achieve process optimization and efficient equipment operation.