Industrial PLC Module Woodward 8440-1843

Technical Overview

The 8440-1843 is an advanced, multi-function control module from Woodward’s easyGen-3000 series, specifically engineered for the complex management of power generation sets. This controller serves as a comprehensive "all-in-one" solution for single or multiple genset applications, providing integrated automatic synchronization, digital load sharing, and sophisticated breaker control. Designed to interface with both diesel and gas engine-driven units, the 8440-1843 excels in high-demand environments where power stability and remote diagnostic capabilities are non-negotiable. Its flexible PLC logic allows for custom-tailored automation sequences, making it a preferred choice for modular power plants and hybrid energy systems.

Detailed Technical Data

The following specifications highlight the hardware robusticity and I/O density of the 8440-1843:

• Manufacturer: Woodward

• Model Identification: 8440-1843 (easyGen-3200-5 Series)

• Operating Voltage: Standard industrial DC power supply

• I/O Configuration:

• Digital Inputs: 16 programmable inputs

• Relay Outputs: 8 high-reliability relay outputs

• Analog Inputs: 3 configurable inputs (for pressure, temperature, etc.)

• Analog Outputs: 2 outputs (for speed bias or voltage regulation)

• Communication Protocols:

• Industrial Bus: CANopen and J1939 (Engine ECU communication)

• Network: Ethernet and Modbus TCP

• Serial: Modbus RTU

• Environmental Resilience:

• Operating Temperature: -20°C to +70°C (-4°F to +158°F)

• Construction: Ruggedized for vibration-prone and offshore installations

• Interface: Integrated high-resolution graphical display for local monitoring

• Physical Profile: 240 x 172 x 65 mm; Weight: 1.4 kg (3.08 lbs)

Applications and System Logic

The 8440-1843 is built for "Peer-to-Peer" load sharing, allowing multiple generators to communicate directly and distribute the electrical load proportionally without a centralized master controller. In marine power systems, it manages the critical synchronization of onboard generators and breaker transition logic. Its software suite includes extensive engine and generator protection functions—such as over/under voltage, frequency monitoring, and reverse power protection—ensuring the safety of both the equipment and the connected electrical grid.