9907-827

Overview

Woodward 9907-827 is a digital governor from the 505 series, designed for steam turbine control in single-valve, single-extraction applications. It offers precise speed and load regulation with integrated communication and configuration options.

Electrical and Communication

• Power supply: 24 V DC nominal (operating range: 18–32 V DC)

• Communication ports: RS-232 and RS-485

• Protocol support: Modbus RTU

Control Capabilities

• Control type: Digital governor for steam turbines

• Supported functions: Speed control, load sharing, extraction pressure regulation

• User interface: Graphical LCD touchscreen

• I/O configuration:

  • Analog inputs: ±10 V, ±5 V, 4–20 mA

  • Analog outputs: 4–20 mA configurable

  • Discrete I/O: Configurable dry contacts

Environmental Ratings

• Operating temperature: –25 °C to +70 °C

• Humidity tolerance: 5% to 95% RH, non-condensing

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