Woodward 9904-264 2301A Load Sharing & Speed Control

Woodward 9904-264 2301A Load Sharing & Speed Control – Reliable Engine Governing Solution

The Woodward 9904-264 is an analog load sharing and speed control module from the proven 2301A series, engineered to deliver accurate speed regulation and balanced load distribution across multiple engine-driven generators. Trusted in power generation, marine propulsion, and industrial drive applications, this controller ensures stable operation under varying load conditions while maximizing fuel efficiency and equipment longevity.

Technical Specifications

• Model Number: 9904-264
• Series: 2301A Load Sharing and Speed Control
• Control Type: Analog proportional-integral (PI) speed governor
• Speed Range: 600 to 3600 RPM (configurable via potentiometer)
• Load Sharing Accuracy: ±2% of rated load across paralleled units
• Speed Regulation: ±0.25% steady-state droop (adjustable 0-6%)
• Input Voltage: 18-32 VDC nominal (24 VDC standard)
• Power Consumption: 8 watts maximum
• Speed Sensing: Magnetic pickup (MPU) input, 50-10,000 Hz
• Output Signal: 0-200 mA to actuator or fuel control valve
• Operating Temperature: -40°C to +70°C
• Enclosure Rating: NEMA 4X / IP65 (optional)
• Mounting: Panel or DIN rail compatible

Core Features & Advantages

• Dual-Mode Operation: Functions as standalone speed governor or integrated load sharing controller for paralleled gensets
• Isochronous & Droop Modes: Supports both load sharing (droop) and single-unit isochronous speed control
• Adjustable Gain & Stability: Front-panel potentiometers enable field tuning for optimal response without oscillation
• Load Limiting: Programmable load limit prevents engine overload during transient conditions
• Proven Reliability: Field-tested across thousands of installations with MTBF exceeding 100,000 hours
• Retrofit Compatible: Direct replacement for legacy 2301A controllers with minimal wiring changes

Application Scenarios

The Woodward 9904-264 excels in demanding power generation and propulsion environments:

• Paralleled Diesel Gensets: Coordinates load sharing among 2-8 generators in utility, hospital, and data center backup systems
• Marine Propulsion: Governs main and auxiliary engines on commercial vessels, ensuring smooth load transitions during maneuvering
• Industrial Cogeneration: Manages speed and load for combined heat and power (CHP) plants with fluctuating thermal and electrical demands
• Oil & Gas Platforms: Controls prime movers for drilling rigs, compressor stations, and offshore production facilities
• Rental Power Units: Provides plug-and-play speed control for mobile generator sets in temporary power applications

System Integration & Compatibility

The 9904-264 integrates seamlessly with Woodward actuators, fuel control valves, and synchronizing equipment. For complete genset control solutions, pair with:

Common Questions

Q: Can the 9904-264 control both diesel and gas engines?
A: Yes, the controller is fuel-agnostic and works with any engine equipped with an electronic or hydraulic actuator. Tuning parameters may vary based on engine response characteristics.

Q: What is the maximum number of generators that can be paralleled?
A: The 2301A architecture supports up to 8 units in a load-sharing network using a common load reference signal. Larger systems require a master load controller.

Q: How do I switch between isochronous and droop modes?
A: Mode selection is performed via internal jumper configuration. Isochronous mode is used for single-unit operation, while droop mode enables load sharing when multiple units are paralleled.

Q: Is the 9904-264 compatible with modern digital control systems?
A: While the 9904-264 is an analog controller, it can interface with digital systems via 4-20 mA signals. For native digital communication (Modbus, CAN), consider upgrading to the 2301D series.

Q: What maintenance is required?
A: The 9904-264 is solid-state with no moving parts, requiring minimal maintenance. Annual calibration checks and MPU sensor inspection are recommended to ensure long-term accuracy.

Warranty & Support

Every Woodward 9904-264 controller is backed by a 12-month manufacturer warranty covering defects in materials and workmanship. Our technical support team provides installation guidance, tuning assistance, and rapid troubleshooting to minimize downtime in critical power applications.

Why Choose Industrial Control Hub?

We specialize in authentic Woodward engine control solutions with:

• Factory-certified genuine parts with full traceability and documentation
• Same-day shipping on in-stock controllers and accessories
• Expert pre-sales consultation for system design and component selection
• Competitive pricing for OEMs, system integrators, and end users
• Comprehensive post-sales support including commissioning and troubleshooting

Order your Woodward 9904-264 Load Sharing and Speed Control today and ensure reliable, efficient operation of your critical power systems.

© 2025 INDUSTRIAL CONTROL HUB. All rights reserved.
Original Source: https://www.indctrlhub.com
Contact: sales@indctrlhub.com | +0086 18359243191