WOODWARD BUM60 3522-1004 Motor drive and control components

The Woodward BUM60 (manufactured under the Baumüller partnership) and the 3522-1004 represent a sophisticated motor drive and control assembly.

1 Specifically, the BUM60 is a high-performance modular servo drive often integrated into Woodward’s turbine or engine control systems to provide precise electronic actuation for fuel valves or steam racks.2

Introduction

The BUM60-1224... is a "back-of-panel" modular servo inverter, while the 3522-1004 is often the associated control module or firmware-specific hardware designation.

Together, they form a closed-loop system capable of controlling synchronous or asynchronous motors with high dynamic response.

This specific configuration (indicated by the long alphanumeric string) defines the power stage, control type (VC - Vector Control), and specialized cooling or communication options.

Technical Parameter Table

Related Models

In a Woodward/Baumüller ecosystem, this unit often interfaces with:

F-Series Actuators: High-speed electric actuators for gas/steam valves.

BUS60 Series: Power supply modules for DC bus linking.

BUM62 Series: Larger power variants for higher torque applications.

Woodward 505/MicroNet: The primary turbine controllers that send commands to this drive.

Application Cases

Electric Actuation for Large Valves: Replacing pneumatic or hydraulic systems on gas turbines for faster, more precise fuel metering.3

Steam Turbine Needle Control: Managing the position of steam admission valves in power plants.

Variable Speed Pump Drives: Controlling cooling or lubricating oil pumps in heavy industrial skids.

Compressor Guide Vanes: Precise positioning of inlet guide vanes (IGV) to optimize compressor efficiency.

Product Advantages and Features

Extreme Precision (VC Mode): The Vector Control (VC) capability allows for maximum torque even at zero speed, which is critical for holding valve positions against high pressure.

Modular Design: The "BUM" series allows for the separation of the power stage and the control unit, making maintenance and troubleshooting simpler.

High Dynamic Response: Capable of millisecond-level response times, ensuring the turbine can react instantly to load changes or emergency trips.4

Integrated Safety: Features built-in monitoring for overcurrent, overvoltage, and thermal protection to prevent damage to the motor or the drive itself.5

Specialized Woodward Firmware: The long part number identifies specific Woodward-tailored parameters that optimize the drive for turbine-specific actuators.

Other Models in the Same Series

The BUM60 series is highly customizable based on the suffix code:

BUM60-0306: Smallest power variant (3A/6A).

BUM60-3060: Larger power variant (30A/60A).

BUM60-VC: Vector Control specific variant (like yours).

BUM60-SR: Resolver-based feedback variant.