Woodward 9905-068 2301A Load Sharing Speed Control

Woodward 2301A Load Sharing & Speed Control - Model 9905-068

The Woodward 9905-068 is a precision-engineered 2301A series load sharing and speed control module designed for demanding prime mover applications. This industrial-grade controller delivers reliable speed regulation and seamless load distribution across diesel engines, gas engines, steam turbines, and gas turbines in both standalone and paralleled configurations.

Technical Specifications

• Model Number: 9905-068 (2301A Platform)
• Control Modes: Isochronous, Droop, Base Load
• Speed Regulation: ±0.25% (Isochronous mode)
• Load Sharing Accuracy: ±2% of rated load
• Input Voltage: 18-32 VDC nominal (24 VDC standard)
• Operating Temperature: -40°C to +70°C
• Communication: Analog I/O, RS-485 Modbus RTU
• Mounting: Panel or DIN rail compatible

Key Applications

Power Generation: Ideal for genset paralleling in utility, marine, and industrial power plants where multiple generators require synchronized operation and proportional load distribution.

Process Industries: Controls mechanical drive turbines in oil & gas, petrochemical, and manufacturing facilities requiring precise speed stability under varying load conditions.

Marine Propulsion: Governs main and auxiliary engines on vessels, ensuring smooth load transitions during maneuvering and dynamic positioning operations.

Cogeneration Systems: Manages combined heat and power units with automatic synchronization to grid or island mode operation.

Integrated Solutions

The 2301A controller interfaces seamlessly with actuators, sensors, and SCADA systems. Pair with Woodward 8273-128 2301D-ST Module for enhanced digital control, or integrate with Woodward 9905-376 2301A for multi-unit installations. For comprehensive turbine control, explore Woodward 8280-412 723PLUS Digital Speed Control for advanced diagnostics and tuning capabilities.

Common Questions

Q: Can the 9905-068 operate in both grid-parallel and island modes?
A: Yes, the 2301A supports automatic mode switching with configurable droop settings for grid synchronization and isochronous control for isolated operation.

Q: What actuator types are compatible?
A: The module drives proportional, servo, and stepper actuators with current output (4-20mA) or PWM signals, compatible with most Woodward EPG and hydraulic actuators.

Q: Is remote monitoring supported?
A: Absolutely. RS-485 Modbus RTU enables integration with PLCs, HMIs, and SCADA platforms for real-time parameter adjustment and diagnostics.

Q: How does load sharing accuracy compare to newer models?
A: While the 2301A delivers ±2% accuracy suitable for most applications, the 2301D-ST series offers ±1% for ultra-precise load distribution in critical installations.

Warranty & Support

Every Woodward 9905-068 module includes a 12-month manufacturer warranty covering defects in materials and workmanship. Our technical team provides installation guidance, configuration support, and troubleshooting assistance throughout the product lifecycle.

For replacement parts, calibration services, or system upgrades, contact our applications engineers to ensure optimal performance and compliance with OEM specifications.

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