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WOODWARD 5501-471 Electronic Governor Module
Product Overview：WOODWARD 5501-471
The WOODWARD 5501-471 electronic governor module is a high-precision control solution designed for optimizing the speed and load regulation of reciprocating engines and turbines in industrial power generation and process control applications. As part of Woodward’s 5500 Series of advanced governor systems, this module combines robust hardware with intelligent software to deliver reliable performance in demanding environments.
Engineered to manage complex speed control tasks, the 5501-471 processes feedback from speed sensors and load signals to adjust fuel injection or valve positioning in real time, ensuring stable operation across varying load conditions. Its 24V DC power input and compatibility with analog (4–20 mA, 0–10 V) and digital (Modbus RTU) signals make it versatile for integration with both legacy and modern control systems. The module’s compact design (152 mm x 102 mm x 76 mm, 0.9 kg) and -40°C to +85°C operating temperature range enable installation in space-constrained and harsh environments, such as engine rooms or offshore platforms.
In automation systems, the 5501-471 serves as a critical link between the engine and the supervisory control layer, providing precise speed regulation to meet grid synchronization requirements in power generation or process stability in industrial drives. Its adaptive control algorithms minimize overshoot and settling time, enhancing the efficiency and longevity of prime movers. By combining reliability with advanced diagnostic capabilities, the 5501-471 ensures seamless operation in mission-critical applications where downtime is not an option.
Technical Specifications：WOODWARD 5501-471
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 5501-471 |
| Manufacturer | WOODWARD |
| Product Type | Electronic Governor Module |
| Input Voltage | 24V DC ±15% |
| Speed Sensing | Magnetic pickup (1–20 kHz), tachometer signal |
| Control Outputs | 4–20 mA (fuel actuator), relay contacts |
| Communication Protocol | Modbus RTU (RS485) |
| Physical Dimensions | 152 mm (L) x 102 mm (W) x 76 mm (H) |
| Weight | 0.9 kg |
| Operating Temperature | -40°C to +85°C |
| Humidity | 5–95% non-condensing |
| Mounting Type | Panel-mount with DIN rail adapter (optional) |
| Country of Origin | United States |
5501-471
Key Features and Advantages：WOODWARD 5501-471
Precision Speed Control: The 5501-471 utilizes advanced PID control algorithms to maintain engine speed within ±0.1% of the setpoint, even during rapid load changes. This level of precision is critical for applications requiring stable power output, such as backup generators or combined heat and power (CHP) systems.
Dual-Mode Operation: The module supports both speed control and load sharing modes, enabling seamless integration into parallel generator systems. In load sharing mode, it adjusts engine power output to ensure balanced load distribution across multiple units, improving system efficiency and reliability.
Robust Signal Processing: With built-in filtering and noise suppression, the 5501-471 accurately processes sensor signals in high-electromagnetic-interference environments, reducing the risk of erroneous control actions. Its wide input voltage range (24V DC ±15%) further enhances resilience to power fluctuations.
User-Configurable Parameters: Through the Woodward ProAct™ software, users can easily configure setpoints, alarm thresholds, and control gains via a USB interface. This flexibility allows customization for specific engine types and operating conditions, minimizing commissioning time.
Diagnostic Capabilities: The module features real-time status LEDs and fault logging, enabling quick identification of issues such as sensor failures or output overruns. This proactive diagnostics capability reduces troubleshooting time and supports predictive maintenance strategies.
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Application Areas：WOODWARD 5501-471
The WOODWARD 5501-471 electronic governor module is ideally suited for industries where precise engine control is essential for operational stability and efficiency:
- Power Generation: Used in diesel and gas generators for grid-connected or islanded power systems, ensuring stable frequency regulation during load transients. In data centers, it maintains consistent power supply to critical IT infrastructure, preventing downtime caused by engine speed fluctuations.
- Oil & Gas: Deployed in reciprocating compressors and pump engines at refineries and offshore platforms, where varying process loads require dynamic speed adjustment to maintain optimal flow rates and pressure levels.
- Industrial Manufacturing: Integrates with steam turbines and gas engines in manufacturing plants, providing reliable speed control for mechanical drives such as pumps, fans, and conveyor systems. This ensures consistent process conditions and reduces energy waste.
- Marine Applications: Installed in marine diesel engines for ships and offshore vessels, the 5501-471 maintains propeller speed stability in changing sea conditions, enhancing maneuverability and fuel efficiency.
- Renewable Energy: Supports hybrid power systems combining reciprocating engines with renewable energy sources, balancing load demand to ensure smooth transitions between power inputs and maintain grid stability.
Related Products：WOODWARD 5501-471
- 5501-470: A base model of the 5500 Series with similar speed control functionality but without Modbus communication, suitable for simpler standalone applications.
- 5501-472: An upgraded version with additional digital inputs/outputs, enabling integration with more complex sensor and actuator networks.
- 5460-231 Speed Sensor: A magnetic pickup sensor sets with the 5501-471 to provide accurate speed feedback, critical for closed-loop control.
- 8290-123 Fuel Actuator: A linear actuator that works alongside the 5501-471 to adjust fuel injection rates, ensuring responsive speed control.
- 5505-671 Communication Adapter: Enables Ethernet/IP connectivity for the 5501-471, expanding its compatibility with modern industrial networks and SCADA systems.
- 5301-112 Voltage Regulator: A complementary module for generator systems, working in tandem with the 5501-471 to regulate both speed and voltage for stable power output.
- 5501-473: A high-temperature variant of the module, rated for operating temperatures up to +105°C, ideal for extreme environment applications.
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Installation and Maintenance：WOODWARD 5501-471
Installation Preparation:
Before installing the 5501-471, verify that the power supply (24V DC) matches the module’s requirements and that all sensors (e.g., 5460-231 speed sensor) are calibrated and correctly wired. Clean the installation panel to remove dust or debris that could interfere with heat dissipation. Mount the module using the provided DIN rail adapter, ensuring secure fixation to prevent vibration-induced damage. Connect the speed sensor, fuel actuator, and communication cables, following Woodward’s wiring diagrams to avoid signal interference.
Before installing the 5501-471, verify that the power supply (24V DC) matches the module’s requirements and that all sensors (e.g., 5460-231 speed sensor) are calibrated and correctly wired. Clean the installation panel to remove dust or debris that could interfere with heat dissipation. Mount the module using the provided DIN rail adapter, ensuring secure fixation to prevent vibration-induced damage. Connect the speed sensor, fuel actuator, and communication cables, following Woodward’s wiring diagrams to avoid signal interference.
Maintenance Recommendations:
- Routine Checks: Monthly inspections should include verifying the module’s status LEDs, checking for loose connections, and ensuring the operating temperature remains within specified limits. Use a soft brush to clean dust from the ventilation slots, as accumulated debris can affect heat dissipation.
- Software Updates: Periodically update the module’s firmware using Woodward ProAct™ software to access the latest control algorithms and bug fixes, enhancing performance and compatibility with newer systems.
- Sensor Calibration: Annually calibrate the speed sensor and fuel actuator to maintain control accuracy. Misaligned or poorly calibrated sensors can lead to speed fluctuations, so following Woodward’s calibration procedures is essential.
- Spare Parts Management: Keep a spare 5501-471 module in inventory, especially for critical applications, to minimize downtime in case of hardware failure. Our global supply chain ensures quick delivery of replacement parts, even for older or discontinued models.
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Product Warranty：WOODWARD 5501-471
We provide a 12-month quality warranty for the WOODWARD 5501-471 electronic governor module, covering hardware defects caused by non-human factors. During the warranty period, if the module exhibits abnormal performance or functional failure, we will promptly provide a replacement at no additional cost. For urgent needs or discontinued models, our extensive inventory and global logistics network enable us to fulfill orders efficiently, ensuring minimal disruption to your industrial operations.
With 17 years of experience in industrial control distribution, we are committed to delivering reliable products, competitive pricing, and expert technical support. Whether you require a single module or a full system integration，installation, and ongoing maintenance, helping you optimize the performance and longevity of your engine control systems.
Note: All product names, logos, and brands are property of their respective owners. This document is for informational purposes only and does not constitute an official technical manual. Always refer to the manufacturer’s documentation for detailed specifications, installation guidelines, and safety instructions.
Whatsapp:+86 18859254943
E-mail :sales@ygplc.com
E-mail :sales@ygplc.com
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