The Woodward 9907-165 is a high-performance 2301A Load Sharing and Speed Control module designed for precise governing of gas or diesel engines and gas, or steam turbines. This electronic control provides a robust interface for managing engine speed and load sharing in both standalone and parallel generator applications. It is engineered for durability in harsh industrial environments, offering high reliability and accurate frequency control.
Product Specifications (Datasheet)
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Part Number: 9907-165
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Manufacturer: Woodward
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Product Type: 2301A Speed Control & Load Sharing Module
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Input Voltage: 10–40 VDC
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Power Consumption: 5 Watts maximum
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Speed Range: Low range (500 Hz to 1500 Hz) / High range (2000 Hz to 6000 Hz)
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Magnetic Pickup Input: 1.0 to 30 Vrms
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Operating Temperature: -40°C to +70°C (-40°F to +158°F)
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Dimensions: 215 mm x 195 mm x 60 mm (8.46″ x 7.68″ x 2.36″)
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Weight: Approximately 1.1 kg (2.4 lbs)
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Country of Origin: USA
Applications
The 9907-165 module is widely utilized in power generation and industrial prime mover sectors. Its primary applications include:
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Emergency standby power systems.
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Marine propulsion and auxiliary engine control.
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Co-generation plants.
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Parallel generator sets for load distribution.
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Compressor and pump drive systems.
Operating Instructions
To ensure optimal performance of the Woodward 9907-165, follow these essential steps:
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Mounting: Install the unit in a location protected from extreme vibration and high temperatures, preferably inside a NEMA-rated enclosure.
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Wiring: Use shielded cables for the Magnetic Pickup (MPU) and Speed Trim inputs to prevent electromagnetic interference. Ensure the ground connection is secure.
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Calibration: Adjust the “Rated Speed” potentiometer until the desired engine frequency is achieved. Set the “Gain” and “Stability” dials to ensure the engine responds quickly to load changes without hunting.
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Load Sharing: When operating in parallel, ensure the load sharing lines are properly connected between all compatible Woodward controllers in the system.
Q&A: Frequently Asked Questions
Q: What happens if the Magnetic Pickup (MPU) signal is lost? A: The 9907-165 features a “Fail-Safe” mode. If the speed signal is lost, the control will automatically drive the actuator to the minimum fuel position to shut down the engine and prevent overspeed.
Q: Can this module be used with 24V battery systems? A: Yes, the input voltage range is 10 VDC to 40 VDC, making it perfectly compatible with standard 12V and 24V industrial battery systems.
Q: Does the 9907-165 support Isochronous and Droop modes? A: Absolutely. It is designed for isochronous operation (constant speed) but can be switched to droop mode for parallel operation with a utility grid or other non-compatible controls.
Q: Where can I find genuine Woodward replacement parts? A: You can explore authentic Woodward 9907-165 components and related accessories through certified distributors.
Similar Model Recommendations
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Woodward 9907-018: Standard 2301A Load Sharing and Speed Control.
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Woodward 8290-184: Electrically Powered Governor (EPG) System.
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Woodward 9905-020: 2301A Speed Control with wider frequency ranges.
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Woodward 9907-162: Low-voltage variant for specialized DC applications.
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Woodward 8440-1700: EasYgen series for more advanced digital load management.
