Description
WOODWARD
9905-797
DIGITAL SYNCHRONIZER AND LOAD CONTROL
REV.D
CAGE 31361
CNTRL ASSY 9905-727
DSLC
The Woodward 9905-797 Rev.D is a Digital Synchronizer and Load Control (DSLC) assembly, designed to manage generator synchronisation and load sharing within marine electrical power systems. As a core component of the Marine Control System category, it governs the precise matching of voltage, frequency, and phase angle required before paralleling generators, while simultaneously regulating load distribution across multiple running sets. Reliable generator control of this kind is operationally critical — uncontrolled synchronisation or uneven load sharing can cause equipment damage, power interruptions, or loss of vessel propulsion and auxiliary services.
Key Features
✓ Performs digital synchronisation and active load control functions, enabling safe paralleling and balanced load sharing between shipboard generators.
✓ Identified as Control Assembly 9905-727 under CAGE code 31361 — confirm full compatibility with your existing Woodward DSLC system configuration and software revision before installation, subject to confirmation.
✓ Designed for integration within Woodward DSLC-based power management architectures; compatibility with specific panels, switchboards, or third-party control systems should be verified against your vessel’s drawings and system documentation.
✓ Intended for installation in protected electrical enclosures or switchboard panels in the engine room or power management room; mounting environment and environmental ratings should be confirmed against the applicable system specification.
✓ Replacement of a DSLC control assembly typically requires system re-configuration or parameter verification — commissioning support and access to the original system settings are strongly recommended prior to energising.
Marine Applications
✓ Diesel-electric and conventional generator plants aboard merchant vessels, tankers, bulk carriers, and container ships requiring automatic or semi-automatic synchronisation.
✓ Offshore support vessels, platform supply vessels (PSVs), and anchor handling tugs where precise load sharing between multiple generators is essential for dynamic positioning and power stability.
✓ Cruise ships and passenger ferries operating complex multi-generator power plants with integrated power management and load shedding systems.
✓ Navy auxiliaries and government vessels employing Woodward-based generator control architectures requiring OEM-compatible control assemblies.
✓ Retrofit and upgrade projects where an existing Woodward DSLC installation requires control assembly replacement due to fault, obsolescence, or system modernisation.
Why Marine Engineers Choose
The Woodward DSLC platform is a well-established standard in marine generator control, and maintaining system integrity with the correct OEM control assembly — properly configured to the vessel’s power plant — ensures dependable synchronisation performance, reduced risk of paralleling faults, and continued compatibility with the broader power management system.
Ideal For
Merchant vessels, offshore support vessels, passenger ships, naval auxiliaries, and any commercial or industrial marine platform operating a Woodward DSLC-based generator synchronisation and load sharing system.
Technical Support & Compliance
Remote and onboard technical support is available to assist with fault diagnosis, parameter verification, installation guidance, and commissioning of this control assembly. Testing, system integration checks, and retrofit support can be arranged subject to confirmation. To verify compatibility with your installation, please share the nameplate photograph, full part number and revision, existing system model and software version, relevant electrical drawings or wiring diagrams, and vessel name or IMO number where applicable. All compatibility and fitment assessments are subject to confirmation based on the documentation provided.
