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Woodward 9905-463 Digital Speed Control Module

Woodward 9905-463 Digital Speed Control Module

Product Description

The 9905-463 is a digital turbine governor from Woodward Inc.’s 505 series. It is designed for steam turbine speed control, admission control, and protection functions in industrial power generation systems.

Using advanced PID control...

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Availability: Low stock: 99 left

SKU: 9905-463
Vendor: Woodward
Category: Digital Speed Control Module
Related Series:

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Product Description

The 9905-463 is a digital turbine governor from Woodward Inc.’s 505 series. It is designed for steam turbine speed control, admission control, and protection functions in industrial power generation systems.

Using advanced PID control algorithms, the module maintains stable turbine operation under varying load conditions, helping reduce mechanical stress and improve steam efficiency. The controller supports both standalone speed control and load-sharing operation for multi-generator power systems.

Technical Specifications

Item Specification
Model 9905-463
Primary Function Steam turbine digital speed governor
Supply Voltage 18 – 32 VDC (24 VDC nominal)
Control Output 0–10 VDC or 4–20 mA configurable
Output Drive Capability 0–200 mA
Processor 32-bit high-speed digital controller
Communication Modbus RS-485
Protection Logic Overspeed, underspeed, and trip protection
Operating Temperature Industrial grade
Weight 1 kg

Protection & Control Features

  • Independent overspeed shutdown protection

  • Load sharing via droop or isochronous control modes

  • Supports grid-parallel turbine operation

  • Real-time safety monitoring independent of main control loop

FAQ

Can it be used for gas engines?
Yes, but only in compatible high-inertia engine systems requiring 0–200 mA actuator signals and proper firmware configuration.

How is programming performed?
The front-panel display and keypad allow on-site configuration of PID parameters, setpoints, and alarm limits without external programming tools for basic setup.