
Product Description
Woodward 9907-173 2301D-ST Digital Load Sharing and Speed Control
The Woodward 9907-173 represents advanced digital control technology for steam turbine generators, industrial pumps, and compressor drive systems requiring precise load distribution and speed regulation. This 2301D-ST module delivers reliable isochronous or droop mode operation across demanding industrial environments.
Technical Specifications
- Model Number: 9907-173
- Series: 2301D-ST Digital Load Sharing and Speed Control
- Control Modes: Isochronous, Droop, Load Sharing
- Input Voltage: 24 VDC nominal (18-32 VDC range)
- Speed Range: 0-10,000 RPM configurable
- Accuracy: ±0.25% of rated speed
- Operating Temperature: -40°C to +70°C
- Communication: RS-232/RS-485 Modbus RTU protocol
- Mounting: Panel or DIN rail compatible
Key Applications
This control module excels in multi-unit power generation facilities where synchronized load distribution prevents overloading individual turbines. Steam turbine operators utilize the 2301D-ST for maintaining grid frequency stability during load fluctuations, while process industries depend on it for coordinating multiple compressor or pump drives in parallel operation.
Industrial facilities benefit from seamless load transfer capabilities during startup and shutdown sequences, ensuring continuous process operation without mechanical stress on rotating equipment.
Advanced Control Solutions
The 9907-173 integrates sophisticated PID algorithms that automatically adjust fuel valve positioning or steam admission based on real-time load demand. Its digital architecture eliminates drift common in analog governors, maintaining setpoint accuracy over extended operating periods.
Built-in diagnostics continuously monitor critical parameters including speed sensor integrity, actuator response, and communication status, triggering configurable alarms before conditions escalate to equipment trips.
Frequently Asked Questions
Q: Can this module control multiple turbines simultaneously?
A: Yes, the 2301D-ST supports load sharing across up to 32 parallel units via Modbus communication network, distributing load proportionally based on configured droop settings.
Q: Is this compatible with existing analog actuators?
A: Absolutely. The module provides 4-20mA analog outputs that interface directly with standard hydraulic or electric actuators without requiring system retrofits.
Q: What protection features are included?
A: Comprehensive protection includes overspeed shutdown, loss of speed signal detection, actuator fault monitoring, and configurable emergency stop inputs meeting safety integrity requirements.
Q: How is configuration performed?
A: Configuration utilizes Woodward's GAP software via RS-232 connection, allowing parameter adjustment, calibration, and real-time monitoring without interrupting operation.
Warranty and Support
Every Woodward 9907-173 module includes a comprehensive 12-month warranty covering manufacturing defects and component failures. Our technical support team provides configuration assistance, troubleshooting guidance, and application engineering consultation throughout the product lifecycle.
Related Products
Enhance your turbine control system with these complementary solutions:
| Product | Description | Link |
|---|---|---|
| Woodward 8273-128 | 2301D-ST Load Sharing & Speed Control Module | View Product |
| Woodward 5466-332 | Analog I/O Module - 24 Input 8 Output MicroNet | View Product |
| Woodward 9905-864 | 505 Digital Turbine Control System | View Product |
These modules integrate seamlessly with the 9907-173 to create comprehensive turbine control architectures supporting advanced monitoring, redundancy, and remote operation capabilities.
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