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WOODWARD 5501-381 Digital Engine Control Module
Product Overview：WOODWARD 5501-381
The WOODWARD 5501-381 digital engine control module is a high-precision industrial controller designed for advanced management of reciprocating engines and gas turbines in critical power generation and mechanical drive applications. As a core component of Woodward’s 5500 Series, this module combines robust hardware with sophisticated software to deliver precise control over engine speed, load sharing, and emissions, ensuring optimal performance and compliance with global regulatory standards.
Engineered for reliability in harsh environments, the 5501-381 features the Woodward ProAct™ technology, enabling real-time adjustment of fuel injection and ignition timing based on dynamic operating conditions. Its 24V DC power input and -40°C to +85°C temperature tolerance make it suitable for demanding installations, from offshore gas compressors to emergency power generators. The module’s Ethernet and RS485 communication interfaces facilitate seamless integration with SCADA systems, allowing remote monitoring and configuration through Woodward’s CompuGauge™ software.
In automation systems, the 5501-381 serves as a critical link between sensor inputs and actuator outputs, translating real-time data into actionable control commands. Its modular design supports easy replacement and firmware updates, minimizing downtime in mission-critical operations. Whether used in standalone engines or complex multi-engine grids, this module enhances system efficiency, reduces fuel consumption, and extends equipment lifespan, making it an indispensable asset for industries reliant on reliable power generation and mechanical drive solutions.
Technical Specifications：WOODWARD 5501-381
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 5501-381 |
| Manufacturer | WOODWARD |
| Product Type | Digital Engine Control Module |
| Input Voltage | 24V DC (±15%) |
| Power Consumption | 15W (max) |
| Communication Protocols | Ethernet (10/100BASE-T), Modbus RTU |
| Physical Dimensions | 220mm (W) × 150mm (H) × 80mm (D) |
| Weight | 1.8 kg |
| Operating Temperature | -40°C to +85°C |
| Humidity | 5–95% non-condensing |
| Mounting Type | Panel-mounted (DIN rail compatible) |
| Country of Origin | United States |
| Input Channels | 8 analog, 16 digital |
| Output Channels | 4 analog, 12 digital (relay and transistor) |
5501-381
Key Features and Advantages：WOODWARD 5501-381
Precision Control Architecture: The 5501-381 leverages Woodward’s decades of expertise in engine management, offering ±0.1% speed regulation under varying load conditions. Its adaptive control algorithms dynamically adjust to changes in fuel quality, ambient temperature, and mechanical wear, ensuring stable operation even in unstable power grids. This level of precision is critical for applications where engine performance directly impacts process efficiency, such as natural gas compression and combined heat and power (CHP) systems.
Robust Environmental Resilience: Built with a cast-aluminum enclosure and conformal-coated PCBs, the module resists vibration, moisture, and electromagnetic interference (EMI), making it suitable for offshore platforms, mining sites, and other harsh environments. Its wide temperature range eliminates the need for additional cooling or heating systems, reducing installation and maintenance costs.
Flexible Integration Capabilities: The 5501-381 supports multiple communication protocols, enabling seamless connectivity with PLCs, DCS systems, and cloud-based analytics platforms. Its Modbus RTU interface allows real-time data exchange with legacy systems, while the Ethernet port facilitates integration with modern IIoT solutions for predictive maintenance. The module also supports hot-swappable I/O modules, enabling field upgrades without system shutdown.
Comprehensive Diagnostic Tools: Built-in self-diagnostics and real-time status LEDs provide instant visibility into module health, identifying issues such as sensor failures or communication errors. The CompuGauge™ software allows operators to monitor key parameters (e.g., fuel flow, exhaust temperature) and configure control loops remotely, reducing troubleshooting time and enhancing operational safety.
Regulatory Compliance: Designed to meet ISO 8528-5 and API 612 standards, the 5501-381 ensures engines operate within emission limits for NOx, CO, and particulate matter. This compliance is essential for industries subject to strict environmental regulations, such as power generation in urban areas and oil refining.
Application Areas：WOODWARD 5501-381
The WOODWARD 5501-381 digital engine control module excels in industries where precise engine management is non-negotiable:
- Power Generation: Integrates with reciprocating engines and gas turbines in backup generators, CHP plants, and microgrids. For example, in a hospital’s emergency power system, the 5501-381 ensures instantaneous load response and stable frequency control, protecting critical medical equipment from power fluctuations.
- Oil & Gas: Controls compressors and pumps in upstream production (e.g., offshore rigs) and downstream refining. Its ability to adapt to varying gas compositions (e.g., high hydrogen content) makes it ideal for managing engines in volatile process environments.
- Industrial Manufacturing: Optimizes energy usage in factory power plants, ensuring consistent steam supply for production lines. In cement plants, the module regulates engine speed to maintain steady kiln rotation, improving product quality and reducing fuel waste.
- Marine Applications: Powers propulsion systems and auxiliary engines in ships and offshore vessels, delivering reliable performance in saltwater-corrosive environments. Its compact design fits tight engine room spaces, a critical advantage in marine engineering.
- Renewable Energy: Supports hybrid systems combining diesel engines with solar or wind generators, balancing power supply and demand in off-grid installations. This role is vital for remote communities and telecommunication towers reliant on stable energy sources.
5501-381
Related Products：WOODWARD 5501-381
- 5501-380: A base model variant with similar hardware but limited to Modbus RTU communication, suitable for simpler control setups.
- 5502-450: An upgraded version with enhanced processing power and additional I/O channels, designed for multi-engine synchronization in large power plants.
- 5460-123 Speed Sensor: A Supporting sensor that provides real-time rotational speed data to the 5501-381, ensuring accurate feedback for control algorithms.
- 5201-789 Fuel Valve Driver: A high-power output module that works with the 5501-381 to regulate fuel injection in large gas turbines, enabling precise load control.
- 5306-211 Temperature Transmitter: An analog input module that measures ambient and engine temperatures, feeding critical data into the 5501-381 for thermal management.
- 5503-672 Communication Gateway: Extends the 5501-381’s connectivity by adding Profibus and CAN bus support, facilitating integration with older industrial networks.
- 5130-444 Backup Power Module: Provides redundant power to the 5501-381 during outages, ensuring uninterrupted operation in mission-critical applications.
Installation and Maintenance：WOODWARD 5501-381
Installation Preparation:
Before installing the 5501-381, verify the power supply matches the 24V DC requirement and ensure the mounting panel is grounded to minimize EMI. Clean the installation area to prevent dust accumulation and align the module with the panel cutout, securing it with the provided screws. Connect sensor cables (e.g., speed sensors, temperature probes) to the designated input terminals, ensuring proper shielding for analog signals. Finally, configure the communication settings using CompuGauge™ software to match the target network protocol (Ethernet or Modbus RTU).
Before installing the 5501-381, verify the power supply matches the 24V DC requirement and ensure the mounting panel is grounded to minimize EMI. Clean the installation area to prevent dust accumulation and align the module with the panel cutout, securing it with the provided screws. Connect sensor cables (e.g., speed sensors, temperature probes) to the designated input terminals, ensuring proper shielding for analog signals. Finally, configure the communication settings using CompuGauge™ software to match the target network protocol (Ethernet or Modbus RTU).
Maintenance Recommendations:
- Routine Inspections: Monthly checks should include verifying power voltage, cleaning ventilation slots, and confirming that status LEDs indicate normal operation. Use a torque wrench to ensure terminal connections remain secure, particularly in high-vibration environments.
- Software Updates: Quarterly firmware updates via Woodward’s official portal enhance compatibility with new sensors and improve control algorithms. Always back up existing configurations before updating to avoid data loss.
- Component Testing: Annually test input/output channels using a calibrated signal generator to ensure accuracy. Replace faulty relays or transistors immediately to maintain control reliability. For harsh environments, consider semi-annual inspections to address corrosion or wear on external connectors.
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Product Warranty：WOODWARD 5501-381
We provide a 12-month quality warranty for the WOODWARD 5501-381 digital engine control module, covering hardware defects caused by non-human factors. During the warranty period, if the module exhibits abnormal performance—such as unresponsive control outputs or communication failures—we will promptly replace it at no cost. Our global logistics network ensures fast delivery of both in-stock and hard-to-find parts, minimizing downtime for critical systems.
For discontinued models or urgent requirements, our team leverages decades of industry connections to source 稀缺备件，ensuring uninterrupted support for older installations. Beyond warranty, we offer comprehensive technical assistance, including remote diagnostics and on-site troubleshooting, to help customers maximize the lifespan and performance of their industrial control systems. With 17 years of expertise in distributing mission-critical components, we are committed to delivering reliability, speed, and value at every stage of your procurement journey.
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 and safety guidelines.
Whatsapp:+86 18859254943
E-mail :sales@ygplc.com
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