Woodward 8440-1878 Digital Synchronizer Load Control

Overview

The Woodward 8440-1878 is part of the DSLC-2 (Digital Synchronizer and Load Control) series. This microprocessor-based controller combines synchronization, load control, and protection in one unit. It is ideal for three-phase AC generator systems in industrial and utility applications. With 5A CT inputs, it supports high-current monitoring for precise load sharing. The unit’s rugged construction and wide temperature range make it suitable for harsh environments. It supports advanced functions such as slip frequency synchronization, voltage matching, and speed biasing. Moreover, its multiple communication ports and redundant Ethernet ensure high reliability in complex generator networks.

Technical Specifications

• Model: 8440-1878 (DSLC-2)

• Power Supply: 12/24 VDC (input range: 8–40 VDC)

• Power Consumption: Maximum 15 W

• CT Input Rating: 5 A

• Bus Voltage: 120 VAC / 480 VAC

• Digital Input Voltage: 12/24 VDC

• Relay Output Voltage: 12/24 VDC

• Operating Temperature: –40°C to +70°C

• Storage Temperature: –40°C to +85°C (–40°F to +185°F)

• Dimensions: 250 × 227 × 84 mm (9.84 × 9.00 × 3.30 in)

• Weight: 2.95 lbs

• Mounting Type: Panel-mounted

• Communication Interfaces:

• 2 × Ethernet (Modbus TCP)

• 1 × RS-485 (Modbus RTU)

• 1 × RS-232

• Redundant Ethernet: Supported

• Multi-Unit Capability: Up to 32 generators in one network