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9907-124 - Load Sharing & Speed Control is available in stock which ships the same day.
9907-124 - Load Sharing & Speed Control comes in UNUSED as well as REBUILT condition.
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SPECIFICATIONS:
Part Number: 9907-124
Manufacturer: Woodward
Series: 2301A
Product Type: Electronic Control Module
Input Voltage: 88–132 VAC
Power Consumption: 15 Watts (Maximum)
Actuator Output: 0–200 mA (Standard Woodward Actuators)
Speed Sensing: Magnetic Pickup (MPU) 1.0 to 30 VAC
Operating Temperature: -40 °C to +70 °C
Mounting: Chassis / Surface Mounted
Enclosure: High Voltage (HV) Chassis
Weight: 1.6 kg
Availability: In Stock
Country of Origin: United States
FUNCTIONAL DESCRIPTION:
The 9907-124 Load Sharing & Speed Control is a high-precision electronic governor designed for managing the speed and load sharing of diesel engines, gas engines, or steam turbines. As part of the 2301A series, this module provides the essential control logic to maintain a constant engine speed (isochronous) or a speed that varies with load (droop). Unlike low-voltage versions, the 9907-124 is specifically built for high-voltage applications, capable of operating on either AC or DC power inputs. The unit is designed to interface directly with Woodward actuators and magnetic pickups, providing a seamless link between electronic control and mechanical throttle positioning. Its ruggedized design ensures it can withstand the vibrations and electrical interference typical of engine-mounted or control-cabinet installations.
SPEED CONTROL AND LOAD SHARING STABILITY:
The module features sophisticated circuitry for isochronous load sharing, allowing multiple generator sets to operate in parallel while maintaining a stable system frequency. By utilizing a dedicated load-sensor input, the 9907-124 ensures that each engine in a multi-unit configuration carries its proportionate share of the total load. This prevents "load hunting" and protects engines from being overloaded or back-fed. The control includes adjustable potentiometers for Gain, Stability, and Actuator Compensation, allowing technicians to fine-tune the governor's response to match the specific inertia and dynamics of the prime mover.
SYSTEM SAFETY AND INTEGRATION FEATURES:
Safety is integrated into the core of the 9907-124 through its fail-safe design. In the event of a lost speed signal (MPU failure), the control is designed to immediately reduce the actuator output to minimum fuel, preventing potential overspeed conditions. The unit also includes a Start Fuel Limit feature, which prevents excessive smoke and engine wear during the startup sequence by limiting fuel delivery until the engine reaches a pre-set speed. Its robust high-voltage chassis acts as a natural heat sink, ensuring the internal electronics remain cool even when operating at the upper limits of its temperature rating.
AVAILABILITY AND SUPPORT:
World of Controls offers the 9907-124 Speed Control in both unused and fully refurbished conditions to support legacy and modern power generation systems. Each unit is calibrated and tested on specialized simulators to ensure it meets original factory performance standards. We provide a full warranty on all parts and offer 24/7 technical support for installation, tuning, and troubleshooting. Whether you require an emergency replacement or a scheduled maintenance exchange, our team is ready to assist with rapid worldwide shipping.
What is the Woodward 9907-124?
The Woodward 9907-124 is a high-precision electronic governor from the 2301A series designed for speed control and load sharing in engines and turbines. It functions as a high-voltage control module, drawing power from 115 VAC or 125 VDC sources to manage the performance of diesel, gas, or steam power systems. This unit is a critical component in power generation and marine propulsion, maintaining stable engine speeds under varying conditions.
What is the primary use of the Woodward 9907-124?
The module is primarily used to manage the speed and load sharing of engines and turbines in industrial environments where high-voltage power is the primary supply. It is most commonly found in power generation and marine propulsion systems, where maintaining a constant engine speed is essential for system stability. By interfacing with actuators and magnetic pickups, it provides a stable link between electronic control and mechanical throttle positioning.
Does this module support parallel operation?
Yes, this module fully supports parallel operation when utilized with a dedicated load-sharing line connection. This feature allows multiple generator sets to work together seamlessly by ensuring each unit carries its proportionate share of the total electrical load. This coordination prevents load hunting and maintains a consistent system frequency across all connected engines.
What happens if the Magnetic Pickup (MPU) signal is lost?
The unit is equipped with a critical loss-of-speed-signal protection circuit specifically designed for engine safety. If the MPU signal is interrupted, the control immediately reduces the actuator output to a minimum fuel position. This fail-safe mechanism prevents dangerous overspeed conditions that could otherwise lead to catastrophic engine failure.
