Woodward 8440-1956 easYgen-3400 Controller

Woodward 8440-1956 Generator Controller for Complex Breaker Applications

Product Introduction

The 8440-1956 belongs to Woodward’s easYgen-3000 series, specifically the easYgen-3400-1-P1 variant. This engine generator control unit handles complex breaker applications with ease. It monitors generator voltage in either delta (phase-phase) or wye (phase-neutral) mode.

You can set the active/reactive power range from 0.5 to 99,999.9 kW/kvar with accuracy class 0.5. The device supports 14 languages, making it suitable for global installations. Its metal frame houses durable components, including AgCdO contact material.

Additionally, the 8440-1956 includes configurable alarm classes (A through F). Each class allows independent limit assignments to define actions when thresholds are reached or exceeded.

Key Technical Specifications

• Accuracy Class: 0.5 (highlighted)

• Ambient Humidity: 95% non-condensing (highlighted)

• Contact Material: AgCdO

• Manufacturer: Woodward

• Setting Range: 0.5 – 99,999.9 kW/kvar (highlighted)

• Weight: Approx. 1,850 g (4 lbs)

• CT Input: 1 A

• Alarm Classes: A, B, C, D, E, F (user-configurable limits)

Mechanical and Environmental Parameters

• Housing Material: Metal

• Operating Humidity: 95% max, non-condensing

• Weight: 1,850 g

• Mounting: Panel mount (standard for easYgen series)

Compared to the P2 counterparts, the P1 series has fewer I/O options and connectors. However, the 8440-1956 remains ideal for applications where space is limited.

Installation Guidelines

Follow these steps to install the 8440-1956 correctly.

First, inspect the metal frame for any shipping damage. Do not proceed if you find dents or cracks.

Next, configure the voltage monitoring mode based on your network type. Use wye (phase-neutral) for isolated or compensation networks. Use delta (phase-phase) for standard grids.

Then, assign limit values to each alarm class (A to F). Each class specifies the required actions when the set limit is reached or surpassed.

Finally, connect the 1 A CT input and the generator voltage leads. Ensure all connections are tight to prevent false tripping.

Remember, the 8440-1956 is not a P2 unit. Do not overload its I/O capacity. For complex applications with many I/O points, consider the P2 series instead.

Why Choose the Woodward 8440-1956?

This controller delivers reliable performance for engine-generator sets. Its wide setting range covers almost any commercial or industrial generator. Moreover, the accuracy class 0.5 ensures precise power measurement.

The device also supports multiple alarm classes. For instance, you can assign a warning for Class A and a shutdown for Class F. Therefore, you gain flexible control over your generator protection strategy.

Additionally, the 8440-1956 works in very humid environments. With 95% non-condensing humidity tolerance, it suits tropical or marine installations. Its multi-language interface reduces training time for international crews.

Frequently Asked Questions (FAQ)

1. Can the 8440-1956 replace a P2 series controller directly?
No, the 8440-1956 has fewer I/O points and connectors than P2 models. You must check your application’s I/O requirements before replacing.

2. What happens if I use delta configuration in an isolated network?
Using delta mode in an isolated or compensation network may cause earth faults. This can lead to unnecessary voltage protection tripping. Always use wye configuration for such networks.

3. Does the unit support both kW and kvar settings?
Yes, the 8440-1956 covers both active power (kW) and reactive power (kvar). Its setting range runs from 0.5 to 99,999.9 for either unit.

4. How should I clean the metal frame of the 8440-1956?
Use a dry, lint-free cloth. Do not use liquids or sprays. The metal frame can corrode if exposed to moisture or solvents.

5. Is the 8440-1956 compatible with 5 A CT inputs?
No, this model is designed specifically for 1 A CT inputs. For 5 A applications, please select a different variant from the easYgen-3000 series.