Woodward 8280-500 Digital Engine & Generator Control Module

Product Overview

The 8280-500 is a digital control module developed by Woodward for use within the 723/828 controller platform. It is engineered to provide accurate speed regulation, stable load management, and dependable process control for industrial engines and turbine-driven generator systems.

Designed for continuous-duty operation, the module integrates advanced electronic governing with flexible signal handling, making it suitable for both new installations and legacy system upgrades.

Control Functions and Capabilities

The 8280-500 performs core governing and supervisory functions required in modern prime mover control systems. Its digital architecture enables precise closed-loop regulation while maintaining compatibility with mechanical and electro-hydraulic actuators.

Key functional capabilities include digital speed control across a wide operating range, real-time load sharing between multiple generator sets, and coordinated load control for grid-connected or islanded systems. The module also supports process-oriented logic for engine start, shutdown, and protection sequencing.

Electrical and Performance Characteristics

The 8280-500 is designed to interface directly with Woodward actuators and field devices without the need for external signal conditioning. Actuator output is provided as a regulated current signal suitable for proportional fuel or vane control mechanisms.

Nominal power consumption is approximately 40 W under normal operating conditions. The control electronics are optimized for electrical stability in environments with vibration, electrical noise, and temperature variation.

Environmental and Mechanical Specifications

The module is built on a rigid metal chassis suitable for installation in hazardous or industrial-rated enclosures. All components are selected to support extended service life in demanding operating environments.

Environmental Ratings

• Operating Temperature: −40 °C to +70 °C
• Storage Temperature: −55 °C to +105 °C

Mechanical Data

• Enclosure: Metal housing for industrial and hazardous locations
• Dimensions: 16.25 in (W) × 11.5 in (L) × 2.375 in (H)
• Weight: 3.2 kg

System Compatibility

The 8280-500 is fully compatible with Woodward 723 and 828 series control architectures. It integrates seamlessly with Woodward fuel actuators, valves, and auxiliary control accessories, enabling consistent control behavior across mixed or upgraded installations.

This module is commonly used as a direct replacement in retrofit projects where long-term reliability and parameter stability are critical.

Typical Applications

The 8280-500 is deployed in a wide range of industrial and marine power systems, including stationary generator sets, industrial gas and diesel engines, turbine-driven power units, and propulsion systems requiring synchronized speed and load control.

Frequently Asked Questions

Can the 8280-500 be used as a replacement for earlier 723/828 control cards? Yes. The 8280-500 is designed to operate within the same control architecture and is commonly used as a functional replacement, subject to system configuration and firmware compatibility.

Does this module require external actuator drivers? No. The module provides a direct 0–200 mA actuator output, suitable for standard Woodward proportional actuators.

Is the unit suitable for hazardous environments? The metal chassis and industrial-grade design allow installation in hazardous-rated panels when used in accordance with applicable system and site standards.