Woodward 8290-185 EPG Controller | Isochronous Speed Module

Product Description

Overview

The Woodward 8290-185 is a high-performance, safety-rated speed controller designed for mission-critical applications in power generation, oil & gas, and industrial engine control. Part of Woodward’s 8000 Series EPG (Electrically Powered Governor) family, it provides precise isochronous speed regulation, turbine overspeed protection, and compressor surge management. The module interfaces seamlessly with actuators such as the Woodward 524 and 1724 series, delivering fully electric control without hydraulic systems.

Module Functionality

The 8290-185 functions as the central controller for engine speed management. It compares incoming speed signals from a Magnetic Pickup (MPU) to a programmed setpoint and sends corrective commands to the actuator to maintain constant speed. Key operational features include:

Isochronous Speed Control

• Maintains near-zero speed droop under varying load conditions

• Supports engines powered by natural gas or gasoline

Safety Architecture

• Quad-redundant 1oo4 processor logic ensures no single point of failure

• Safety shutdown if speed signal is lost

• Fail-safe actuator returns fuel rack to minimum position during power loss

Advanced Diagnostics and Cybersecurity

• Predictive failure analysis and TÜV-compliant proof testing

• Firmware protected by HSM with secure boot

• IEC 62443-3-3 SL2 cybersecurity compliance

Environmental Robustness

• Stainless steel enclosure, IP69K (NEMA 6P)

• Vibration resistance up to 10G across 5–2000 Hz

• Operating temperature range: –40°C to +90°C

Technical Specifications

Applications

• Industrial generators and power plants

• Emergency Shutdown (ESD) systems for turbines

• Compressor surge and overspeed protection

• Engine-driven pumps and machinery requiring precise speed control

FAQ

Q: Can this module operate without hydraulic connections?
A: Yes, it is fully electric and does not require hydraulic oil.

Q: What actuators are compatible with the 8290-185?
A: Woodward 524 and 1724 series actuators.

Q: How fast does it respond to load changes?
A: Safety-critical actions respond in less than 5 milliseconds.

Q: Is it suitable for extreme environments?
A: Yes, it has IP69K protection, stainless steel enclosure, and vibration resistance up to 10G.