Description
Product Overview
The Woodward 8440-1936 easYgen-3500-5/P2 is a generator-set controller designed for power-generation systems that require coordinated engine-generator control, breaker management, synchronization, and electrical protection. It belongs to the easYgen-3000 series for complex breaker applications. The “5” in the model designation identifies the 5 A current-transformer input version, while “P2” identifies the applicable hardware package. These distinctions matter when matching a replacement to existing current transformers, wiring, and control-panel architecture. Woodward’s product catalog associates this part number with the easYgen-3500-5/P2 controller.
In an appropriately engineered installation, the Woodward 8440-1936 easYgen-3500-5/P2 can support generator synchronization, active and reactive load sharing, breaker control, and coordination with other generating units. These functions are used in standby power plants, industrial power systems, and installations where generators operate in parallel with other generators or a utility supply. The precise control functions available depend on the application configuration, system wiring, enabled features, and the surrounding protection equipment. Before commissioning, verify voltage-sensing connections, 5 A CT secondary circuits, breaker feedback, trip and close logic, and communications with the engine controller or plant supervisory system.
For maintenance and procurement teams, the Woodward 8440-1936 easYgen-3500-5/P2 should be selected by complete part number rather than by front-panel appearance alone. The P2 package and 5 A measurement configuration must match the intended application; a related easYgen controller with a different package or 1 A CT input may require wiring or configuration changes. Check the controller’s firmware, parameter backup, terminal arrangement, and application-specific settings before replacing an installed unit. A replacement should also be checked for display operation, input/output response, measurement accuracy, and communication performance. These checks help reduce commissioning delays and avoid unexpected behavior during generator transfer or parallel operation.
Product Introduction
Generator-paralleling faults can result from mismatched current-transformer inputs, incorrect voltage sensing, or incompatible breaker logic. The Woodward 8440-1936 easYgen-3500-5/P2 is the 5 A CT-input version of the controller family designed for complex breaker applications.
When sourcing a replacement, confirm the P2 package, firmware compatibility, saved control parameters, and interface wiring. The controller’s suitability depends on the complete generator application—not simply on whether the unit powers up or fits the existing panel cutout.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Woodward |
| Model Number | 8440-1936 |
| Product Name | easYgen-3500-5/P2 |
| Product Family | easYgen-3000 |
| Product Type | Generator-set controller |
| Application Class | Complex breaker applications |
| Package | P2 |
| CT Input Rating | 5 A nominal |
| Main Functions | Genset control, synchronization, load sharing, breaker control, protection |
| Display | Integrated operator display and keypad |
| Supply Voltage | Confirm the applicable product specification and unit label |
| Voltage Measurement Range | Confirm sensing configuration and product specification |
| Communication Interfaces | Confirm the installed configuration and enabled protocols |
| Mounting | Panel-mounted controller |
| Firmware | Verify installed revision and application compatibility |
| Operating Temperature | Confirm against the applicable Woodward specification |
| Protection Rating | Verify the exact unit and installation conditions |
| Product Specification | Woodward document 37523 |
| Manual | Woodward document 37528 |
The part number and product identity are confirmed by Woodward’s catalog. Other electrical and environmental details should be taken from the applicable product specification and the unit’s nameplate; they should not be inferred from a similar easYgen model.
8440-1936
Related Products
These models are in the Woodward easYgen family or serve related generator-control applications. Verify functions, CT inputs, hardware package, and configuration before treating any model as a replacement.
- 8440-1934 — easYgen-3500-5/P1: 5 A CT-input version with the P1 package; check terminal and I/O differences before substitution.
- 8440-1935 — easYgen-3500-1/P1: 1 A CT-input version with the P1 package.
- 8440-1937 — easYgen-3500-1/P2: 1 A CT-input version with the P2 package.
- 8440-1945 — easYgen-3400-5/P1: Related easYgen-3400 controller with a 5 A CT input and P1 package.
- 8440-2078 — easYgen-3400-5/P2: easYgen-3400 variant with a 5 A CT input and P2 package.
- 8440-2050 — easYgen-3200-5/P1: Generator controller in the easYgen-3200 family, intended for a different application scope.
- 8440-2052 — easYgen-3200-5/P2: Related 5 A CT-input controller with P2 package.
- 8440-1884 — easYgen-2500-5/P1: Generator controller for applications requiring the corresponding easYgen-2500 feature set.
Woodward’s catalog lists these models under the easYgen product families. They differ in package, input rating, or control scope, so confirm the application requirements before considering a cross-reference.
Frequently Asked Questions
1. What is the Woodward 8440-1936 used for?
It is an easYgen-3500-5/P2 generator-set controller. It is intended for generator applications requiring functions such as synchronization, breaker control, load sharing, and generator protection, subject to the installed configuration.
2. Does the 8440-1936 use 1 A or 5 A current transformers?
It is the 5 A CT-input version. A 1 A version in the same P2 family uses part number 8440-1937. Check the CT secondary rating and controller configuration before connecting measurement circuits.
3. Can I replace the 8440-1936 with the 8440-1937?
Not as a direct drop-in replacement without an engineering review. The 8440-1936 is the 5 A version, while the 8440-1937 is the 1 A version. The CT circuits, measurement scaling, wiring, and settings must be suitable for the proposed controller.
4. Does the 8440-1936 support firmware v3.1?
The part number alone does not confirm compatibility with firmware v3.1. Check the controller’s installed firmware, the application configuration, and the applicable Woodward documentation before upgrading or transferring settings.
5. Can I hot-swap this controller while the generator is running?
Do not assume that live removal or insertion is supported. The controller is connected to generator sensing and control circuits, including breaker and engine-control interfaces. Follow the plant’s approved isolation and service procedures, and have qualified personnel determine whether the system can remain in operation during replacement.
6. How can I verify that a replacement 8440-1936 is genuine and functional?
Check the Woodward nameplate, complete part number, package designation, serial number, and physical condition. Request available inspection and functional-test documentation, including confirmation of display operation, measurement inputs, programmable I/O, and communications. A powered display alone does not establish that all control functions work correctly.
7. Will the replacement retain the existing generator settings?
Do not assume that settings or application parameters will transfer automatically. Back up the existing configuration where possible, document firmware and control parameters, and confirm the required settings before removing the installed controller. After installation, validate sensing, synchronization, breaker logic, alarms, and protection functions under an approved commissioning procedure.
