Woodward 9907-018 2301A Load Sharing Control Module
Manufacturer: Woodward
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Part Number: 9907-018
Condition：New with Original Package
Product Type: Speed Control Modules
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Country of Origin: GERMANY
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Woodward 9907-018 2301A Electronic Load Sharing and Speed Control Module
The Woodward 9907-018, also cataloged as the 9907-018 2301A Electronic Load Sharing and Speed Control Module, operates as a dedicated hardware component for prime mover speed regulation and dynamic load distribution within engine and turbine control systems. Configured to operate on a low-voltage 20-40 VDC power input, this analog control module conditions magnetic pickup speed sensor signals and processes 4-20 mA or 1-5 VDC analog command inputs. The internal circuitry drives a 0-200 mA proportional current output to adjust fuel actuator valves under both isochronous and droop speed control configurations.
Suffix Breakdown & Model Matrix
The 2301A product family utilizes specific part number designations to define input voltage operating ranges and functional speed control options.
| Part Number / Option Suffix | Operating Voltage | Speed Range Selection | Control Functionality |
|---|---|---|---|
| 9907-018 | 20-40 VDC (Low Voltage) | 500-12000 Hz Configurable | Speed Control & Load Sharing |
| 2301A High-Voltage Series | 88-132 VAC / 90-150 VDC | 500-12000 Hz Configurable | Speed Control & Load Sharing |
| 2301A Speed Control Only | 20-40 VDC / High Voltage | Fixed Frequency Bands | Speed Control Only (No Load Share) |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 9907-018 |
| Brand | Woodward |
| Origin | USA |
| Weight | Not specified |
| Dimensions | 15.25 in W x 7.125 in H x 2.5 in D |
| Operating Temp | -40 deg C to +85 deg C |
| Power Consumption | <= 15 W (20-40 VDC Input) |
| Product Type | Electronic Load Sharing and Speed Control Module |
| Compatible Series | 2301A Series |
| Control Modes | Isochronous (constant speed), Droop (proportional load sharing) |
| Input Signals | 4-20 mA, 1-5 VDC, Magnetic pickup speed sensor |
| Output Signal | 0-200 mA proportional actuator output |
| Speed Range | 500-1500 Hz, 1000-3000 Hz, 2000-6000 Hz, 4000-12000 Hz |
| Accuracy / Repeatability | Accuracy: +-0.2% of full scale; Repeatability: +-0.1% of full scale |
| Humidity Range | 5%-95% non-condensing |
| Enclosure Type | Metal housing, single PCB design |
| Front Panel Adjustments | Potentiometers for tuning and calibration |
| Certifications | CE marked (EU Low Voltage & EMC), CSA certified |
Actuator Loop Feedback Response
The Woodward 9907-018 delivers dynamic actuator loop feedback response by processing raw magnetic pickup speed pulses across four discrete frequency bands up to 12000 Hz. An internal high-gain control loop monitors deviation between the measured engine pulse frequency and the selected speed setpoint. The controller modifies the 0-200 mA current loop output to re-position the fuel rack actuator without introducing control lag. When operating in paralleled load sharing configurations, the module continuously calculates load differential signals across interconnected load lines to balance kilowatt output across multiple prime movers, suppressing throttle hunting during sudden electrical step-load transients.
Frequently Asked Questions
Q: How does the Woodward 9907-018 process speed feedback during engine start-up sequences?
A: The module conditions high-frequency pulse inputs generated by a magnetic pickup detecting flywheel gear teeth. Internal filtering logic verifies signal amplitude and frequency integrity within the target band (such as 500-1500 Hz or up to 4000-12000 Hz) to deliver a linear 0-200 mA actuator command signal while removing parasitic electrical noise.
Q: What operational risks occur if the power supply strays outside the specified 20-40 VDC input range?
A: Supplying voltage below 20 VDC causes gain fluctuations and potential control loop droop, while exceeding 40 VDC activates internal thermal protection mechanisms. Maintaining a stable, regulated 20-40 VDC power source ensures the module operates within its designated 15 W power consumption envelope.
Q: What ground wire techniques effectively isolate magnetic pickup inputs from industrial field noise?
A: System integrators must route magnetic pickup and analog control lines using twisted-pair shielded cables. Ground the outer braid shield at a single chassis earth terminal point inside the control panel to break potential ground loops and shield internal differential amplifiers from electromagnetic radiation.
Field Installation Guidelines
Mount the metal enclosure vertically on a clean structural plate inside a rated control panel to encourage natural convection cooling across the chassis. Maintain physical separation between 20-40 VDC supply wires, signal conductors, and high-voltage AC distribution circuits to eliminate inductive noise coupling into internal control loops. Connect all incoming cable shields directly to an earth ground stud located adjacent to the module baseplate. Before switching on 24 VDC power, verify that front-panel potentiometer settings for stability, gain, and droop reflect target generator operating specs.