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Phone: +86 16626708626Description
Real-World Use & Application Scenarios
The Woodward 8273-140 digital load sharing and speed control module is widely utilized in power generation, industrial engine management, and generator control applications. It is crucial in ensuring precise engine speed regulation and seamless load sharing among multiple generators operating in parallel. Industries such as marine propulsion, power plants, and heavy machinery rely on this module to optimize engine performance and maximize efficiency under varying load conditions.
This module is designed to meet challenges related to stable engine speed control, smooth load transitions, and fault-tolerant operation. It integrates into control systems where accurate speed sensing and adaptive filtering minimize fluctuations and assist in protecting mechanical components from stress due to speed irregularities. Its capabilities support digital communication and system monitoring, enhancing operational transparency and remote management.
Product Introduction & Positioning
The Woodward 8273-140 is a digital load sharing and speed control module from the Woodward 2301D series, acting as the main controller for engine speed and load regulation. It combines digital control algorithms, adaptive filtering, and enhanced communication to provide a modern solution for engine governors and generator sets.
- 8273-140
- 8273-140
Positioned as a key module within Woodward’s industrial control product line, the 8273-140 supports engines of medium and high speed, handling MPU (Magnetic Pickup) frequencies of 1000 Hz and above. It employs a new PID control algorithm optimized for low and medium speed engines, improving response accuracy and minimizing speed fluctuations.
The module also incorporates modern communication functions including Modbus protocol extensions, which facilitates integration into plant-wide digital control and monitoring systems. Users appreciate the module for its enhanced stability, adaptability, and expandability in diverse industrial contexts.
Key Technical Features & Functional Benefits
The Woodward 8273-140 supports advanced digital load sharing and speed control, optimized for engines operating within 100 to 10,000 RPM range. Its adaptive speed sensing filter helps smooth out noise and irregularities such as torsional vibrations and irregular flywheel gear teeth, enhancing control precision.
The module features an actuator position droop function that adjusts engine speed and load in response to changes automatically, allowing bump-less load transfers between engine units. It also supports a remote lock-in-last function that maintains stable operation during signal loss by holding the last speed or load value.
Input voltage range is 8 to 48 V DC, and power consumption is nominally around 20 W. The design includes fault-tolerant operation capabilities via faster control signal response and improved idle gain adjustments calculated based on rated and idle speeds.
Detailed Technical Specifications
| Parameter | Value |
|---|---|
| Model | Woodward 8273-140 |
| Brand | Woodward |
| Product Type | Digital Load Sharing and Speed Control Module |
| Input Voltage Range | 8 – 48 V DC |
| Operating Temperature Range | -40°C to +70°C |
| Speed Range Covered | 100 to 10,000 RPM |
| Power Consumption | ≤ 20 W nominal |
| Control Algorithm | Adaptive PID |
| Communication Protocol | Modbus (extended points) |
| Actuator Control | Position Droop Control |
| Housing | Sheet-metal chassis, PCB based |
| Weight | Approx. 1 kg |
Related Modules or Compatible Units
Woodward 2301D-EC (8273-138 / 8273-139) – Enhanced electromagnetic compatibility version for non-hazardous and hazardous locations.
Woodward 8273-501 – Updated model replacing 8273-140 with software upgrades and improved features.
Woodward 9907-167 – Digital governor module for advanced engine control.
Woodward 8440-2028 – Digital I/O expansion board for system scalability.
GE IS220PDOAH1A – Analog output module compatible with industrial control systems.
Installation Notes & Maintenance Best Practices
The 8273-140 should be installed within well-ventilated control enclosures with proper grounding to reduce electrical noise. Ensure the MPU sensor signal wiring is shielded and properly routed to avoid interference and ensure accurate speed measurement.
Maintenance involves regular calibration of control parameters according to engine specifications and operating conditions, as outlined in the Woodward user manual. Firmware upgrades and configuration backups should be managed diligently to maintain performance integrity. Visual inspection of connectors and cables is recommended to prevent signal loss or degradation.
