Description

The 5466-258 is a high-performance servo driver or actuator control module manufactured by Woodward, a world leader in the design and production of control systems for critical applications in aerospace and industrial markets. This module is a key component within Woodward’s extensive range of motion control and fuel management systems, often utilized in governing prime movers like gas and diesel engines, steam turbines, and gas turbines. Its primary function is to precisely convert a low-power control signal (typically from a governor or a main control system) into a high-power, amplified output to drive an electro-hydraulic servo actuator or a proportional valve. This precise control of actuator position is fundamental for regulating fuel flow, inlet guide vanes, or other final control elements to maintain desired speed, load, or process variables.

As part of Woodward’s legacy of engineering excellence, the 5466-258 is built to deliver unmatched reliability and precision in the most demanding environments. It acts as the critical muscle between the system’s brain (the controller) and the physical mechanism that adjusts the prime mover’s output. The module is designed with robust protection circuits and feedback monitoring to ensure safe and stable operation, protecting both the control system and the expensive asset it controls. The Woodward 5466-258 is more than just an amplifier; it is a vital link in the control chain that ensures operational efficiency, stability, and safety for machinery across the energy and marine sectors.

5466-258 WOODWARD

Technical Specifications

Parameter Name	Parameter Value
Product Model	5466-258
Manufacturer	Woodward Inc.
Product Type	Servo Driver / Actuator Control Module
Input Signal	Typically ±200 mA or 4-20 mA from a Woodward governor (e.g., 2301A)
Output Drive	High-current output to drive a proportional servo valve or actuator
Supply Voltage	Typically 24 VDC or 48 VDC (dependent on specific actuator requirements)
Feedback Monitoring	Includes internal monitoring for output current and fault detection
Communication Interface	Legacy analog signaling; often works in conjunction with digital governors
Operating Temperature	-40°C to +85°C (-40°F to +185°F) (estimated based on product family)
Mounting	Designed for chassis or DIN rail mounting within a control cabinet
Protection Features	Over-current protection, short-circuit protection, and fault indication
Certifications	Designed to meet relevant marine, industrial, and quality standards (e.g., API, ISO)

Main Features and Advantages

The 5466-258 module is renowned for its robust and straightforward design, offering several key advantages. Its primary feature is its high reliability and deterministic performance. Engineered with industrial-grade components and protective circuits, it ensures a continuous and precise output signal to the actuator, which is paramount for preventing engine overspeed or unstable turbine operation. The module provides essential fault detection, monitoring its own output current and capable of triggering a system shutdown or alarm if an internal failure or short-circuit condition is detected, thereby acting as a critical layer of protection for the entire asset.

Another significant advantage is its seamless integration within the broader Woodward ecosystem. The 5466-258 is designed to be fully compatible with Woodward’s renowned governors, such as the 2301A series, creating a cohesive and proven control loop. This compatibility simplifies system design, commissioning, and maintenance, reducing engineering effort and the risk of integration errors. The module’s typically wide operating temperature range and sturdy construction make it suitable for installation in harsh environments, such as engine rooms on ships or outdoor enclosures on pipeline compressor stations, where vibration, temperature fluctuations, and contaminants are ever-present challenges.

Application Field

The Woodward 5466-258 servo driver finds its primary application in the control of large internal combustion engines and turbines. In the energy sector, it is indispensable for controlling the fuel racks or inlet valves on large reciprocating engines and gas turbines used for power generation in peaker plants, remote mining operations, and pipeline compression stations. Here, the precise movement controlled by the 5466-258 directly impacts fuel efficiency, emissions, and load response, making it a critical component for both economic and environmental performance.

In the marine industry, the 5466-258 is a workhorse for propulsion and auxiliary engine control on vessels ranging from cargo ships to offshore supply vessels. It ensures the main engines respond accurately to the throttle command from the bridge, maintaining precise speed and power output. Furthermore, it is used in industrial mechanical drive applications, such as controlling compressors and pumps in the oil and gas industry. In all these fields, the module’s value is proven in mission-critical systems where failure is not an option, and reliability is the foremost requirement for ensuring continuous, safe, and efficient operation.

5466-258 WOODWARD

Related Products

2301A: The Woodward 2301A engine or turbine governor, which is a common source of the control signal for the 5466-258 module.

5466-*: Other variants within the 5466 series (e.g., 5466-217, 5466-249) offering different input/output specifications or form factors.

EGB-*: Woodward’s Actuator products (e.g., EGB-101P), which are the typical end devices driven by this servo driver.

ProAct® Digital Servo Driver: A newer generation digital servo driver representing the modern evolution of this technology.

9907-*: Woodward power supply modules that provide clean, regulated DC power for control systems including the 5466-258.