Overview

The Woodward 8290-185 Isochronous Speed Control module delivers precise engine speed regulation for industrial and power generation systems. Designed for use with Woodward electric actuators, this controller maintains constant speed under varying load conditions, ensuring stable frequency output in critical applications.

Its closed-loop PID algorithm responds rapidly to load changes, minimizing overshoot and maintaining tight speed control. Moreover, the module includes features like start fuel limiting and ramp generation, which improve engine performance during startup and load transitions. In addition, its rugged design and wide operating temperature range make it suitable for harsh environments, including marine and remote installations.

The 8290-185 integrates seamlessly with Woodward actuators such as the 524 and 1724 series. Therefore, it is ideal for upgrading analog governors to digital control in retrofit projects. Whether used in gensets, compressors, or industrial engines, this module offers reliable performance and long-term stability.

Technical Data

Typical Applications

• Generator sets: Maintaining stable frequency under dynamic load conditions.

• Industrial engines: Pumps, compressors, and mechanical drives.

• Marine propulsion systems: Precise speed control and rapid load response.

• Retrofit projects: Upgrading analog governors to digital PID control.

• Remote installations: Environments requiring rugged and resilient control.

FAQ

Q1: What type of actuators are compatible with the 8290-185?
A1: It works with Woodward electric actuators such as the 524 and 1724 series.

Q2: Can this module be used in outdoor environments?
A2: Yes, it operates reliably from –40 °C to +75 °C when housed in a protected enclosure.

Q3: Does it support load sharing or parallel operation?
A3: The 8290-185 focuses on isochronous speed control; load sharing requires additional modules.

Q4: Is this suitable for upgrading older mechanical governors?
A4: Absolutely. It’s widely used in retrofit projects to modernize engine control systems.

Q5: What kind of output signal does it provide?
A5: It delivers a 0–200 mA current signal to drive compatible actuators.