Woodward 9907‑1105 723 Digital Turbine Speed‑Load Controller

Product Description

9907‑1105 is a microprocessor‑based digital control board from Woodward's 723 series. It is designed for steam turbines, gas turbines and hydro turbines,

executing closed‑loop speed regulation, load control, extraction / admission steam‑flow control and sequence logic. It supports multiple PID control loops, configurable I/O and

communication interfaces, and provides stable actuator drive output. Widely applied in thermal‑power plants, cogeneration facilities, sugar‑mill turbine drives and industrial

turbine‑generator sets.

Technical SpecificationsFull Model: 9907‑1105 Brand: Woodward, Origin: United‑States Product Series: 723 digital control series Operating Power Supply: 24 VDC / 120‑240 VAC (configurable) Speed Input: Dual magnetic pickup (MPU) inputs, 50‑10000 Hz Control Loops: Speed, load, extraction, admission, temperature PID loops Analogue Input: Multiple 4‑20mA / 0‑10V configurable channels Analogue Output: Multiple 4‑20mA / 0‑10V actuator drive outputs Digital I/O: Configurable discrete inputs and relay outputs Communication Interface: RS232, RS485, Modbus‑RTU protocol Installation Type: Rack‑mount / panel‑mount module Operating‑Temperature: ‑20℃ ~ +65℃ Storage‑Temperature: ‑40℃ ~ +85℃ Ambient Humidity: 5%–95% non‑condensing Built‑in Protection: over‑voltage, under‑voltage, over‑temperature and fault self‑diagnosis Certifications: CE, UL, marine‑grade certification, industrial EMC certification

Key FeaturesMulti‑loop PID control supports simultaneous speed, load and extraction‑steam regulation Dual redundant speed inputs enhance reliability for critical turbine applications Flexible configurable I/O adapts to various turbine sizes and control schemes Complete built‑in self‑diagnosis and real‑time fault‑alarm function Modbus‑RTU serial communication enables remote monitoring and parameter adjustment Rugged metal housing resists vibration and electromagnetic interference in power‑plant environments Firmware stored in flash memory supports on‑site software upgrade Compact modular structure for convenient cabinet installation and maintenance