I/O modules

The Woodward 5501-429 is a versatile two-channel actuator controller for industrial drive systems. This module provides precise control for proportional or integrating pneumatic and hydromechanical actuators. Moreover, its advanced design includes comprehensive diagnostics for reliable system operation.

Key Control and Power Specifications

This 25mA version module requires specific power inputs for optimal performance. It operates with a +5 V supply at 0.5 A and a +24 V supply at 1 A. The controller also supports a maximum load resistance of 10/30 mA for compatible actuator integration.

Comprehensive Diagnostic and Feedback Features

Each actuator channel can utilize one or two position feedback devices like LVDTs or RVDTs. The module continuously monitors for several critical fault conditions to ensure safety. These diagnostics include alarms for excitation errors, feedback signal loss, and driver circuit issues.

Furthermore, the system tracks position errors, logic power status, and microcontroller activity. It also verifies consistent communication with the main CPU module for coordinated control. A prominent red fault LED provides immediate visual status indication for efficient troubleshooting.

Detailed Technical Parameters

Technical Specifications:

• Manufacturer & Model: Woodward 5501-429

• Product Category: Actuator Controller Module

• Channels: 2 independent control channels

• Actuator Type: Compatible with proportional/integrating, pneumatic/hydromechanical

• Current Version: 25mA output specification

• Power Requirements: +5 VDC @ 0.5 A, +24 VDC @ 1 A

• Max Load Resistance: 10/30 mA maximum

• Feedback Support: Accepts 1 or 2 LVDT/RVDT devices per channel

• Fault Diagnostics: Excitation, feedback, driver, position error, and CPU comms alarms

• Status Indicator: Integrated red LED (solid = comms fault, flashing = internal fault)

• Form Factor: Standard industrial module for rack mounting

• Dimensions: Designed to fit standard Woodward control chassis specifications

• Weight: Optimized for secure mounting in vibration-prone environments

• Interface: Terminal connections for power, feedback signals, and actuator output

• Internal Components: Includes microcontroller, driver circuits, and isolation components

System Integration and Applications

The 5501-429 is essential for turbine control, valve automation, and other precise motion applications. It integrates seamlessly into larger control systems alongside components like the IS200AEBMG1AFB board. This module can also be part of a comprehensive protection scheme that includes devices like the RMS-TSG-TZ-C Static Trip unit. For monitoring critical parameters, systems often pair it with sensors such as the PR6423/128-110.

Details