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Product Description
The Woodward 8406-120 controller is a microprocessor-based control unit from the EGCP-2 (Engine Generator Control Package) family. It is engineered to manage generator load control, synchronization, and prime mover operation in distributed power generation systems.
Designed for demanding industrial environments, the controller integrates monitoring, protective functions, and engine management capabilities in a single device. The system continuously supervises generator electrical parameters and engine operating conditions, enabling stable load sharing and safe generator operation.
The 8406-120 unit supports multiple types of prime movers including gas engines, steam turbines, and small gas turbines. Its dual backlit LCD interface allows operators to easily view system parameters, alarms, and configuration settings. With a wide operating temperature range and robust vibration tolerance, the controller is suitable for installation in power plants, industrial generator systems, and energy management installations.
Technical Specifications
| Attribute | Specification |
|---|---|
| Manufacturer | Woodward |
| Model | 8406-120 |
| Product Series | EGCP-2 |
| Device Type | Engine Generator Control Package (Digital Controller) |
| Input Voltage | 150–300 Vac PT sensing input |
| Auxiliary Power | 9–32 Vdc |
| Display | Dual Backlit LCD Displays |
| Dimensions | 260 × 170 × 75 mm |
| Weight | 3.54 kg |
| Operating Temperature | –20 °C to +70 °C |
| Storage Temperature | –40 °C to +105 °C |
| Vibration Rating | SV2: 5–2000 Hz @ 4G; RV1: 10–2000 Hz @ 0.04 G²/Hz |
| Control Functions | Generator synchronization, load sharing, engine speed control |
| Protection Functions | Over/under voltage, frequency protection, engine protection |
| Configuration | Programmable parameters via front interface |
Key Functional Characteristics
The 8406-120 integrates generator electrical control and prime mover supervision within a compact digital platform. It enables accurate load distribution between generators operating in parallel and maintains stable system frequency and voltage levels.
The controller supports repeated crank attempts through configurable crank cycle parameters, improving reliability during generator startup. Protective logic ensures that abnormal conditions such as voltage deviations or engine faults trigger alarms or shutdown responses to prevent equipment damage.
Dual LCD displays provide clear operational data including generator load, voltage, frequency, and system status messages.
Typical Applications
Power generation systems in industrial plants
Gas engine driven generator sets
Steam turbine generator control systems
Small turbine power units
Distributed energy and microgrid installations
FAQ
What is the primary role of the Woodward 8406-120 controller?
The 8406-120 is designed to supervise generator operation by controlling synchronization, load sharing, and engine operation while providing electrical protection for the generator.
Which types of prime movers are compatible with this controller?
It supports gas engines, steam turbines, and small industrial gas turbines used in generator applications.
Does the controller provide operator interface functions?
Yes. Two backlit LCD screens allow real-time monitoring of system parameters, alarms, and configuration settings.
