Description

Product Overview

The Woodward easYgen-3500-5/P2 is a genset control and power-management controller designed for generator sets operating in single-unit, multiple-unit, standby, island, and mains-parallel applications. The P2 package provides a broad I/O set, three CAN interfaces, an RS-485 Modbus RTU slave interface, Ethernet connectivity, configurable analog I/O, and integrated generator, mains, and busbar measurement. It supports automatic mains failure, synchronization, breaker control, load and VAR sharing, import/export control, and load-dependent start/stop functions. Woodward documentation also identifies the P2 package as supporting up to 32 gensets in mains-parallel multiple-unit operation and up to 32 gensets for load/VAR sharing. The unit uses a color display with softkey operation and is intended for front-panel installation in demanding generator-control environments.

Technical Specifications — easYgen-3500-5/P2

Woodward’s current specification lists the 3500 P2 platform with three CAN interfaces, one Modbus RTU interface, up to 23 configurable discrete inputs, up to 22 relay outputs, and up to 10 analog inputs.

Woodward easYgen-3500-5/P2

Key Features and Benefits — easYgen-3500-5/P2

• Supports generator, mains, and busbar electrical measurement.
• Provides automatic mains-failure and standby control.
• Supports generator synchronization, breaker management, and closed-transition operation.
• Handles load sharing and reactive-power sharing for multi-generator plants.
• Supports import/export control and load-dependent generator start/stop.
• Multiple CAN interfaces allow integration with engines, expansion I/O, and other controllers.
• Configurable analog and discrete I/O supports different genset architectures.
• Built-in Modbus RTU and Ethernet communication simplify integration with supervisory systems.
• P2 configurations support extensive field I/O and CANopen expansion capabilities.

For a replacement unit, the configured application is critical. Personally, I would preserve the parameter file and verify CT ratios, PT settings, breaker logic, engine interface, and load-sharing configuration before commissioning.

Related Models

easYgen-3400 P2 — Related Woodward genset controller with a similar P2 I/O and communication architecture, intended for compatible generator-control applications.

easYgen-3500 P1 — Closely related package with fewer field I/O resources than the P2 configuration.

easYgen-3500XT-P2 — Newer-generation replacement platform. Woodward states that several older 3500 P1/P2 variants can be replaced by the XT P1/P2 series, but wiring and application compatibility still require review.

easYgen-3500XT-P1 — Related XT controller for applications requiring the corresponding P1 configuration.

Installation and Maintenance — easYgen-3500-5/P2

Before replacement, isolate the controller power and document generator CT/PT wiring, engine communication, breaker control, CAN networks, Modbus settings, and application parameters. Verify the configured nominal voltage and current ranges before enabling measurement circuits.

Inspect the front panel, terminal plugs, communication ports, and mounting hardware. A replacement controller should be tested for correct synchronization, breaker operation, load sharing, and shutdown logic under controlled commissioning conditions. Woodward also identifies a dedicated P2 connector kit for this controller family, which can be useful when rebuilding maintenance inventory.

Product Warranty — easYgen-3500-5/P2

Warranty coverage depends on supplier, condition, testing status, and purchase agreement. For used or refurbished inventory, request a functional test covering display operation, measurement inputs, communication interfaces, synchronization, and output switching. The Woodward easYgen-3500-5/P2 should be matched to the installed genset architecture and saved configuration before commissioning.