Description
⚙️ Product Overview
The WOODWARD 9907-019 is a low-voltage 2301A Load Sharing and Speed Control designed to regulate prime-mover speed and support proportional load sharing between generators operating in parallel.
The 9907-019 belongs to the Woodward 2301A 9905/9907 series and operates from a 20–40 VDC supply. This specific model is a reverse-acting, CE-approved version with a 0–200 mA actuator output for single-actuator applications.
It is commonly applied to diesel or gas engines and other prime movers driving generator sets where stable speed regulation and generator load sharing are required.
🔧 Key Features
- Model: 2301A
- Part Number: 9907-019
- Series: 9905/9907
- Power Supply: 20–40 VDC
- Actuator Output: 0–200 mA
- Control Type: Reverse-acting
- Actuator Configuration: Single actuator
- Speed Control: Adjustable prime-mover speed regulation
- Load Sharing: Supports proportional generator load sharing during parallel operation
- Speed Ranges: Switch-selectable ranges from 500 to 12,000 Hz
- Designed for industrial generator and engine-governor applications
📊 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | WOODWARD |
| Model | 2301A |
| Part Number | 9907-019 |
| Series | 9905/9907 |
| Product Name | Low Voltage Load Sharing & Speed Control |
| Control Type | Reverse-Acting |
| Power Supply | 20–40 VDC |
| Actuator Current | 0–200 mA |
| Actuator Configuration | Single |
| Approx. Weight | 1.8 kg |
🏭 Typical Applications
The 2301A 9907-019 is intended for prime-mover control applications where accurate speed regulation and generator load coordination are required.
Typical applications include:
- Diesel generator sets
- Gas engine generator sets
- Standby power systems
- Marine generator systems
- Industrial power generation
- Parallel generator installations
- Engine-driven pumps and compressors
- Prime-mover speed governing systems
- Generator load-sharing systems
During parallel operation, the load-sharing function measures generator load and helps coordinate the operating load among connected generator sets.
🔌 Control Functions
The 2301A combines several important control functions in one electronic governor.
Speed Control:
The speed-control section receives the prime-mover speed signal and adjusts the actuator command to maintain the desired operating speed.
Load Sharing:
When multiple generators operate in parallel, the load-sharing circuitry helps distribute generator load proportionally.
Speed Sensing:
A magnetic pickup or suitable speed-sensing device provides the frequency signal used by the control.
Actuator Control:
The 9907-019 provides a 0–200 mA actuator output for its specified single-actuator configuration.
Droop / Parallel Operation:
The 2301A architecture supports droop and isochronous operating arrangements depending on the generator control scheme and system configuration.
🛠️ Installation & Maintenance
🔹 Verify the part number: Confirm 9907-019 before replacing an installed 2301A control. Different 2301A variants can have different actuator configurations and operating characteristics.
🔹 Check supply voltage: The 9907-019 is a low-voltage model and requires a 20–40 VDC control supply.
🔹 Check actuator wiring: Verify actuator type, polarity, current requirements, and wiring before applying power.
🔹 Inspect speed sensing: Confirm that the magnetic pickup signal is within the required range and that shielded wiring and grounding are correctly implemented.
🔹 Check load-sharing wiring: For parallel generator operation, inspect CT connections, load-sharing lines, synchronizer connections, and associated control wiring.
🔹 Adjustment: Gain, reset, load gain, droop, rated speed, and actuator compensation adjustments should be performed according to the engine and generator commissioning procedure.
🔹 ESD protection: Disconnect power before servicing and handle the internal electronics using appropriate ESD precautions.
⚠️ Safety Note: Incorrect speed-range selection or improper governor adjustment can result in engine overspeed. Commissioning should be performed by qualified personnel using the applicable Woodward system documentation.
❓ Common Questions & Answers
Q1: What is the WOODWARD 9907-019?
A: It is a low-voltage 2301A electronic load-sharing and speed-control unit.
Q2: What supply voltage does the 9907-019 use?
A: The low-voltage 2301A version operates from 20–40 VDC.
Q3: Is the 9907-019 forward-acting or reverse-acting?
A: The 9907-019 is a reverse-acting model.
Q4: What is the actuator current range?
A: The specified actuator output range is 0–200 mA.
Q5: Is this model designed for a single or tandem actuator?
A: The 9907-019 is configured for a single actuator.
Q6: Can it be used for generator load sharing?
A: Yes. The 2301A series is designed to provide load sharing when generators operate in parallel.
Q7: What type of engines can use the 2301A?
A: The 2301A series can be applied to diesel and gas engines as well as other prime movers used for power generation.
Q8: Can another 2301A model directly replace 9907-019?
A: Not necessarily. Supply voltage, actuator current, forward/reverse action, actuator configuration, and optional functions must all be checked before substitution.
⭐ Recommended WOODWARD Models
- WOODWARD 9907-018 2301A Load Sharing & Speed Control
- WOODWARD 9907-019 2301A Load Sharing & Speed Control
- WOODWARD 9907-023 2301A Load Sharing & Speed Control
- WOODWARD 9907-024 2301A Load Sharing & Speed Control
- WOODWARD 9905-020 2301A Load Sharing & Speed Control
- WOODWARD 9905-021 2301A Load Sharing & Speed Control
- WOODWARD 9905-022 2301A Load Sharing & Speed Control
- WOODWARD 9905-023 2301A Load Sharing & Speed Control
- WOODWARD 9905-028 2301A Load Sharing & Speed Control
- WOODWARD 9905-029 2301A Load Sharing & Speed Control
📦 Spare-Parts Recommendation
For generator-control maintenance, the WOODWARD 9907-019 is a useful critical spare when the installed system specifically requires a low-voltage, reverse-acting 2301A controller with a 0–200 mA single-actuator output.
Before purchasing or installing a replacement, compare the existing controller’s part number, actuator configuration, supply voltage, operating direction, speed range, and adjustment settings to avoid an incompatible substitution.
