Description
WOODWARD 9907-164 Digital Microprocessor Controller Module
1. Product Description
The WOODWARD 9907-164 is a high-performance digital microprocessor controller module designed for precise control of steam turbines, turbogenerators, and turboexpander systems. Built for industrial automation, it supports single or split-range actuators, enabling accurate speed regulation, load management, and system synchronization. Key features include real-time data processing, configurable I/O interfaces, and advanced protection functions like critical speed avoidance. With a user-friendly 24-character LCD display and intuitive keypad, the 9907-164 allows on-site configuration and monitoring, making it ideal for power generation, oil & gas, and manufacturing applications.
2. Product Parameters
| Parameter | Specification |
|---|---|
| Input Voltage | +24 VDC (1 A) |
| Communication | RS-232/RS-422, Modbus RTU |
| I/O Interfaces | 16 contact inputs (4 dedicated, 12 programmable), 6 analog inputs (4–20 mA) |
| Display | 2-line x 24-character LCD |
| Operating Temperature | -20°C to +60°C (-4°F to +140°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Enclosure Rating | IP56 (front panel mount) |
| Weight | 4.13 kg (9.11 lbs) |
| Certifications | CE, UL |
3. Advantages and Features
- Flexible Control: Supports single or split-range actuators for steam turbine inlet valves, adapting to diverse system requirements.
- Critical Speed Avoidance: Automatically bypasses unsafe speed ranges to prevent mechanical damage.
- Real-Time Monitoring: Tracks parameters like speed, temperature, and pressure with 1 ms resolution.
- Modular Design: Expandable via additional I/O modules for complex control scenarios.
- Fault Tolerance: Built-in diagnostics and first-out shutdown indicators reduce downtime.
4. Application Areas and Case Studies
- Power Generation: Optimizes steam turbine performance in thermal power plants.
- Oil & Gas: Controls turboexpanders in gas processing facilities.
- Manufacturing: Manages rotating machinery in industrial automation lines.
Case Study:
A European power plant reduced maintenance costs by 30% using the 9907-164 to automate turbine speed control and detect early signs of component wear.
A European power plant reduced maintenance costs by 30% using the 9907-164 to automate turbine speed control and detect early signs of component wear.

5. Competitor Comparison
Compared to similar controllers:
- Wider Input Voltage Range: Operates at +24 VDC, reducing reliance on voltage regulators.
- Enhanced I/O Flexibility: Offers 16 contact inputs vs. typical 8–12 in mid-range models.
- Integrated Safety: Combines control and protection functions in a single module, minimizing system complexity.
6. Selection Recommendations
- System Complexity: Choose the 9907-164 for multi-actuator systems requiring split-range control.
- Environment: Opt for IP56-rated models in harsh conditions (e.g., dusty or humid environments).
- Scalability: Pair with Woodward’s 8440-2028 I/O modules for future expansions.
7. Precautions
- Grounding: Ensure proper grounding to prevent EMI interference.
- Firmware Updates: Regularly update via Woodward’s LeoPC software for compatibility and bug fixes.
- Power Supply: Use a filtered power source to avoid voltage spikes.
- Installation: Mount vertically in a vibration-free environment away from high-power cables.
声明
山西鑫业达国际贸易有限公司 is your trusted partner for WOODWARD 9907-164 and turbine control solutions. Visit www.xydcontrol.com or contact us for sales and technical support.
山西鑫业达国际贸易有限公司 is your trusted partner for WOODWARD 9907-164 and turbine control solutions. Visit www.xydcontrol.com or contact us for sales and technical support.


