The Woodward DSLC-2 is a digital synchronizer and load controller that manages generator loading for systems of up to 32 three-phase AC generators. Combined with the MSLC-2, it provides complete multi-unit, segment, utility, and intertie power management via an integrated Ethernet communication network with automatic failover redundancy.
Key Features
Control
- Synchronizer, load sensor, and load controller in one package
- Manages up to 32 generators via Ethernet network
- Slip frequency or phase matching automatic synchronization
- Dead bus closing logic with permissive synch check mode
- True RMS power sensing with soft bumpless loading/unloading
- Isochronous load sharing on isolated generator systems
- Base load, import/export, and process power control against utility
- kVAR and power factor control with proportional reactive load sharing
Communications & Reliability
- Ethernet A: dead bus closing, load sharing, and VAR sharing between DSLC-2/MSLC-2 units
- Ethernet B: Modbus TCP for DCS and PLC interfacing
- Redundant load sharing selectable across both Ethernet networks
- Automatic failover to second network if one is compromised
- Network loss alarm with automatic droop mode fallback
- Each device monitors all other devices on the network
Applications
- Multi-generator power systems up to 32 units
- Complex utility-paralleled generator installations
- Isolated bus generator systems with isochronous load sharing
- Utility intertie and segment power management
- Combined DSLC-2/MSLC-2 power management networks
Drake Controls Services
Drake Controls is a Woodward Authorized Distributor. The Woodward DSLC-2 and MSLC-2 are end-of-life (last-time-buy ended November 2022) and are no longer orderable as new factory production. Their drop-in successors are the DSLC-2XT (8440-2299) and MSLC-2XT (8440-2298) — same mounting and overall dimensions, with a documented settings-transfer path — and Drake can assess sourcing, configuration, commissioning, and the mixed-fleet update path. The source lists limited repair support for existing -2 units through December 31, 2026, subject to component availability and not guaranteed; mixed -2/-2XT fleets require the documented compatibility update files on remaining legacy units. See the DSLC-2 and MSLC-2 lifecycle and replacement records in the Obsolescence Finder.