Woodward 9907-147 from SAUL ELECTRIC | In Stock
1.9907-147 Product Overview

The Woodward 9907-147 belongs to the 505/505E series digital turbine controllers. It is a microprocessor-based control module designed for single-valve steam turbines, including single extraction/admission systems or split-range actuator configurations.
The controller features a front panel Operator Control Panel (OCP) with a two-line, 24-character display and multi-function keypad, allowing easy on-site configuration and monitoring.
2. 9907-147 Technical Specifications and Parameters
| Parameter | Details |
|---|---|
| Power Supply | +24 VDC, approx. 1 A |
| I/O Outputs | Discrete Outputs: 8 Analog Outputs: 6 Actuator Outputs: 2 |
| Display / HMI | Two-line, 24-character LCD, with multi-function keypad |
| Dimensions | Approx. 14 × 11 × 4 in (35.6 × 27.9 × 10.2 cm) |
| Weight | Approx. 9.11 lbs (4.13 kg) |
| Operating Temperature | –4 to +140 °F (–20 to +60 °C) |
| Storage Temperature | –40 to +185 °F (–40 to +85 °C) |
| Humidity Standard | 95% RH at 20-55 °C for 48 hours without damage |
| Protection Class | Typically meets industrial dust and water protection standards |
| Communication Protocol | Supports Modbus, RS-232 / RS-422 serial interfaces |

3. Brand History
Woodward, Inc., founded in 1870 and headquartered in Fort Collins, Colorado, USA, is a global leader in energy control systems. The company has a long history of innovation in turbine control, engine management, and power generation systems. Woodward products are widely recognized for their reliability and precision in demanding industrial and power generation applications.
4. Applications in Industrial Automation
The 9907-147 plays a critical role in industrial automation and power generation environments:
- Steam Turbine Control: Manages startup, speed regulation, and extraction/admission control of steam turbines.
- Power Generation Systems: Used in power plants to regulate turbine-driven generators for stable frequency and load management.
- Compressor and Pump Drive Control: Ensures precise speed control for turbine-driven compressors and pumps.
- Process Industry Applications: Applied in chemical plants, refineries, and other industries requiring precise turbine operation.
- Safety and Protection Functions: Includes overspeed protection, critical speed avoidance, actuator travel limits, and event logging for operational safety.

Future Development Trends of Gate Drivers
1. Highly integrated and modular
With the increasing demand for integration and reliability in power electronic systems, gate drivers will tend towards higher integration and
modular design. Highly integrated gate drivers can integrate multiple functional units into one chip or package, thereby reducing size,
lowering power consumption, and improving reliability.
Meanwhile, modular design can combine gate drivers with other related circuits or
functional modules to form independent subsystems or module units, facilitating system design and maintenance.
2. Intelligence and Networking
With the development of the Internet of Things and intelligent manufacturing technology, gate drivers will gradually achieve intelligence
and networking. Intelligent gate drivers will integrate more sensors and intelligent control algorithms to achieve self-monitoring, self diagnosis,
and self-protection functions; Networked grid drivers can communicate and exchange data with other devices or systems through the Internet or LAN to
achieve remote monitoring, remote control, remote maintenance and other functions. The implementation of these functions will greatly improve the
intelligence level and operational efficiency of power electronic systems.
3. Greening and Sustainable Development
With the increasing global emphasis on environmental protection and sustainable development,
gate drivers will also move towards green and sustainable
development. Green gate drivers will be manufactured and produced using more environmentally friendly materials and processes; At the same time,
measures such as optimizing control algorithms and reducing power consumption will be taken to reduce energy consumption and emissions of pollutants.
In addition, gate drivers will be combined with renewable energy technologies to promote the application and development of power electronic systems in the field of renewable energy.







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