Woodward 9907-1183 505E Human-Machine Interface

Description

The Woodward 9907-1183 is a human-machine interface designed for monitoring and governing steam turbine systems, including industrial-sized standard steam turbines, utility turbogenerators, and turboexpander models. Configurable as a standalone unit or integrated into a plant's distributed control system (DCS), the unit employs a 32-bit microcontroller to execute precise turbine management. Its internal PID structure enables active control of turbine speed, load, inlet pressure, exhaust header pressure, and extraction/admission header pressure. Interfacing with a 4–20 mA transducer alongside ratio/limiter functions, the device regulates extraction and admission processes while enforcing established operating parameters.

Features

• Password protected program
• Zero speed detection
• Watertight and dust-tight NEMA 4X protective casing support
• PID structure for monitoring speed, load, and header pressures
• Ratio and limiter functionality for 4–20 mA transducer management

Applications

• Industrial-sized standard steam turbines
• Utility turbogenerators
• Turboexpander models
• Steam turbine extraction and admission control

Technical Specifications

Installation Guidelines

• Install the optional NEMA 4X protective casing when deploying the unit in harsh outdoor conditions to prevent moisture and dust ingress.
• Ensure the direct input power supply strictly complies with the 18 to 32 Vdc operating voltage rating.
• Provide adequate clearance around the enclosure to maintain ambient operating air temperatures within -25 to +65 degC.
• Route signal lines from 4–20 mA transducers away from high-voltage lines to minimize electromagnetic interference.