Description
WOODWARD 2301A 9907-018 Full Authority Speed Control Documentation
1. Product Overview
The WOODWARD 2301A 9907-018 is a CE-marked, low-voltage load sharing and speed control module designed for industrial applications, including diesel/gas engines and steam/gas turbines. It offers precise speed and load regulation, supporting 4–20mA or 1–5Vdc input signals for seamless integration with process control systems. The 9907-018 is engineered for reliability in harsh environments, with EMI/RFI shielding and a compact metal chassis.
2. Key Technical Parameters
| Parameter | Specification |
|---|---|
| Module Type | Full Authority Speed Control |
| Input Signal | 4–20mA or 1–5Vdc (speed/load) |
| Output Signal | 0–200mA (actuator control) |
| Voltage Range | 20–40Vdc (low-voltage model) |
| Power Consumption | ≤15W |
| Operating Temperature | -40°C to +85°C |
| Dimensions | 15.25 × 7.125 × 2.5 inches |
| Weight | 1.758 kg |
| Certifications | CE, CSA |
3. Advantages and Features
- Flexible Control Modes:
- Isochronous (constant speed) or droop (variable speed) operation.
- Supports single or tandem actuators for multi-unit generator systems.
- Reliability:
- Gold-plated contacts and EMI/RFI shielding ensure long-term stability.
- Automatic start fuel limiting reduces engine wear and emissions.
- Ease of Use:
- Front-accessible potentiometers for quick adjustments.
- Optional deceleration ramp for smooth load transitions.
4. Application Areas and Use Cases
- Energy: Power plants, combined heat and power (CHP) systems.
- Oil & Gas: Offshore platforms, pipeline compressors.
- Transportation: Marine propulsion, railway power systems.
Case Study: A European power plant reduced fuel consumption by 12% using the 9907-018 to optimize load sharing across 4 gas turbines, achieving seamless synchronization and stable grid integration.

5. Competitive Comparison
The 2301A 9907-018 stands out with:
- Dual Voltage Options: Low (20–40Vdc) and high-voltage variants for broader compatibility.
- Integrated Load Sensor: Eliminates the need for external sensors, reducing system complexity.
- CE/CSA Compliance: Meets EU and North American safety standards without additional modifications.
6. Selection Recommendations
- Voltage Requirements: Choose the low-voltage 9907-018 for 20–40Vdc systems; high-voltage models are available for 88–150Vdc.
- Environmental Needs: Opt for the CE-marked version for EU applications or CSA for North America.
- Additional Features: Include the optional deceleration ramp for applications requiring gradual load changes.
7. Precautions
- Installation: Use shielded twisted pair cables to minimize interference.
- Load Management: Avoid exceeding the 0–200mA output limit to prevent actuator damage.
- Maintenance: Regularly inspect potentiometer settings and clean the chassis to prevent dust accumulation.
Shanxi Xinyeda International Trade Co., Ltd. supplies WOODWARD 2301A 9907-018 and automation solutions. Visit www.xydcontrol.com or contact us for sales and technical support.


