Woodward 2301A 9907-018
Woodward
New product
The Woodward 2301A Low Voltage Load Sharing & Speed Control, Part No. 9907-018, is an electronic governor controller designed to regulate compatible prime-mover speed and support load sharing between generators operating in parallel. It is used in diesel and gas engine power-generation systems where the controller's electrical and operational specifications match the installation.
The supplied unit carries a Woodward identification label showing Part No. 9907-018, Rev. D, Serial No. 12197080, and manufacture in Fort Collins, Colorado, USA. The front panel identifies a 20–40 VDC power supply and the 2301A Load Sharing & Speed Control model. Manufacturer documentation identifies the 9907-018 as a low-voltage controller with a forward-acting 0–200 mA actuator output.
SM MARINE SERVICE™ supports enquiries for marine generator governors, electronic engine control equipment, replacement controllers and associated spare parts, subject to availability and compatibility verification.
| Specification | Details |
|---|---|
| Manufacturer | Woodward, Inc. |
| Product family | Woodward 2301A |
| Model | Low Voltage Load Sharing & Speed Control |
| Part number | 9907-018 |
| Revision | Rev. D |
| Serial number | 12197080 |
| Control type | Electronic speed control and load sharing |
| Supply voltage | 20–40 VDC |
| Maximum power consumption | 15 W, according to manufacturer documentation |
| Actuator output | 0–200 mA |
| Actuator direction | Forward acting |
| Actuator arrangement | Single actuator |
| CAGE code | 31361, as marked on the supplied unit |
| Main application | Engine speed regulation and generator load sharing |
| Country marking | USA |
Identification note: Confirm the complete nameplate, electrical characteristics and system configuration before ordering a replacement controller.
The Woodward 2301A is an electronic governor control that processes speed-related signals and generates an actuator command to regulate a compatible engine or other prime mover. In generator installations, its load-sharing function helps coordinate the electrical load carried by generators operating in parallel.
Two operating concepts are particularly relevant:
Isochronous control: Aims to maintain the selected operating speed as load changes, within the capabilities of the engine and control system.
Droop control: Allows the speed reference to vary with load according to the configured control characteristics.
The appropriate mode depends on the generator arrangement, other governors and the approved system configuration.
The supplied controller includes front-panel adjustments identified as:
Droop
Load Gain
Low Idle Speed
Ramp Time
Actuator Compensation
Gain
Reset
Rated Speed
Start Fuel Limit
These controls support adjustment of governor response and operating characteristics. Settings must follow the applicable manufacturer's instructions and engine requirements. Unapproved adjustments can cause unstable speed, incorrect load sharing or unsafe engine operation.
The printed connection diagram identifies terminal functions associated with power supply, actuator output, speed sensing, generator PT and CT sensing, load-sharing lines, breaker auxiliary contacts, speed trim and synchronizer input. The precise wiring arrangement must be confirmed against the correct installation documentation.
| Parameter | Specification |
|---|---|
| Controller series | 2301A |
| Supply range | 20–40 VDC |
| Power requirement | 15 W, according to manufacturer documentation |
| Actuator current | 0–200 mA |
| Output direction | Forward acting |
| Speed sensing | Compatible speed-sensing input, typically a magnetic pickup |
| Load sensing | PT and CT inputs, according to system design |
| Control modes | Isochronous and droop, subject to configuration |
| Enclosure | Metal housing |
Dimensions, weight and environmental limits should be confirmed against the applicable manufacturer documentation and exact unit configuration rather than assumed from the product family alone.
The Woodward 2301A operates as part of a complete engine and generator control system. Depending on the installation, associated equipment may include:
Magnetic pickup: Provides an engine-speed signal where fitted.
Compatible actuator: Converts the controller's output into movement of the fuel or prime-mover control mechanism.
PT voltage sensing circuit: Provides generator voltage information for load sensing.
CT current sensing circuit: Provides generator current information for load sensing.
Load-sharing connections: Allow compatible controllers to coordinate generator loading.
Circuit-breaker auxiliary contact: Provides breaker-status information for relevant control functions.
Synchronizing equipment: May be incorporated into the wider generator-control arrangement.
DC power supply: Provides the specified low-voltage input.
The exact accessories and compatible actuator must be verified for the installed system.
The Woodward 2301A 9907-018 may be suitable for compatible applications including:
Marine auxiliary diesel generator sets
Shipboard electrical power-generation systems
Emergency generator installations where specified by the original design
Parallel operation of compatible generators
Industrial diesel and gas-engine generator sets
Other compatible prime-mover control applications
In marine power systems, stable engine speed contributes to maintaining generator frequency. Proper load sharing also helps distribute electrical load between generators operating in parallel. Complete synchronization, protection and load management depend on the wider electrical system, not the governor controller alone.
The following checks are general diagnostic starting points, not manufacturer-defined fault codes.
| Symptom | Initial checks |
|---|---|
| Controller does not operate | Verify DC supply, fusing, wiring and controller condition. |
| Engine speed is unstable | Inspect the speed signal, actuator linkage and approved governor settings. |
| Generator frequency is incorrect | Check the speed reference, sensing circuit and engine operating condition. |
| Unequal generator load sharing | Review PT/CT sensing, load-sharing wiring, operating mode and participating controllers. |
| Actuator does not respond correctly | Verify actuator compatibility, wiring and mechanical movement. |
| Speed signal is intermittent | Inspect the sensor, connections and signal quality. |
| Engine does not reach rated speed | Check the speed reference, fuel limitations, actuator travel and system configuration. |
| Governor response is too slow | Review approved dynamic settings and investigate engine or actuator limitations. |
| Unit is damaged or overheated | Follow safe isolation procedures and arrange qualified inspection. |
Record the controller's part number, revision, serial number and installation details.
Document engine speed, generator frequency, load conditions and observed symptoms.
Follow the vessel's approved isolation and safety procedures.
Check the DC supply and wiring against the correct diagram.
Inspect the speed sensor, actuator and load-sensing circuits.
Compare the settings with the approved commissioning records.
Perform the required functional tests before returning the system to service.
Safety warning: Incorrect governor adjustment or actuator malfunction can contribute to engine overspeed or loss of speed control. Testing and adjustment should be performed by qualified personnel using the appropriate technical procedures.
Inspect the enclosure for corrosion, contamination and physical damage.
Check terminal connections and wiring during authorized maintenance.
Verify that the DC supply remains within the specified range.
Inspect speed-sensing equipment and associated wiring.
Check the actuator and linkage for wear, sticking or incorrect movement.
Review generator load-sharing performance during approved tests.
Record existing settings before authorized adjustments.
Keep the complete model, revision and serial number in maintenance records.
Use the correct manufacturer's documentation for commissioning and servicing.
SM MARINE SERVICE™ accepts enquiries for the Woodward 2301A Low Voltage Load Sharing & Speed Control, Part No. 9907-018, subject to stock and sourcing availability.
Enquiries may include:
Complete Woodward 2301A governor controller
Replacement speed-control and load-sharing units
Compatible actuators and speed sensors
Associated generator-control equipment
Verified electrical accessories
Technical documentation and replacement identification assistance
Depending on availability, equipment enquiries may cover new, used, refurbished, reconditioned or tested working units.
When requesting a quotation, provide the part number, revision, serial number, required condition, destination and a clear photograph of the existing unit's nameplate.
Replacement compatibility: Do not select a controller based only on the 2301A model name. Confirm the supply voltage, actuator current, forward or reverse action, actuator arrangement, load-sensing requirements, wiring and required functions before purchase.
It is a low-voltage electronic speed-control and load-sharing controller for compatible prime movers and generator installations.
The specified supply range is 20–40 VDC. Confirm the power requirements against the applicable documentation.
The 9907-018 is identified as a forward-acting controller with a 0–200 mA actuator output.
It may be used in compatible marine generator-control systems, depending on the engine, actuator, sensing circuits and overall installation design.
Isochronous control aims to maintain a constant target speed, while droop control allows the speed reference to vary with load according to the configured characteristics.
Availability depends on the exact part number, condition, stock and sourcing options. Contact SM MARINE SERVICE™ with the unit details for assistance.
Check the complete part number, revision, supply voltage, actuator output, output direction, load-sensing arrangement and compatibility with the installed control system.
The Woodward 2301A Low Voltage Load Sharing & Speed Control, Part No. 9907-018, Rev. D, is an electronic governor controller for compatible engine speed regulation and generator load sharing. The supplied unit carries Serial No. 12197080 and is marked for 20–40 VDC operation with a forward-acting 0–200 mA actuator output. Contact SM MARINE SERVICE™ for availability, replacement identification, technical support and marine generator governor spare parts.
Consult the applicable Woodward 2301A documentation for installation, wiring, adjustment, commissioning and troubleshooting. Confirm that the manual applies to the specific 9907-018 configuration before carrying out technical work.
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