Woodward 5501-432 Actuator Control Module

The Woodward 5501-432, also cataloged as the 5501-432 Actuator Control Module, operates as a dedicated hardware component for dual-channel proportional position management within MicroNet control chassis platforms. Configured to interface directly with integrating or proportional, hydromechanical or pneumatic actuators, the unit processes position inputs to calculate closed-loop correction metrics and output localized mechanical drive currents.

Hardware Specifications

Actuator Loop Feedback Response and Diagnostic Monitoring

The 5501-432 regulates driver current loops to manage actuator loop feedback response parameters, stabilizing mechanical displacement variables through continuous comparisons with incoming reference states. The module supports up to two hardware position feedback tracking devices per channel, reading independent sensors to build sub-millisecond tracking loops that avoid mechanical deadbands or transient hunting behaviors. Onboard tracking arrays continuously scan the active loop parameters, streaming fault indicators, open-circuit alerts, and coil resistance alarms straight to the central diagnostic registers to catch physical loop failures before they cause an automatic processor shutdown.

Frequently Asked Questions

Q: How does the 5501-432 handle a sudden failure or drop in the primary position feedback device signal?

A: If an active position feedback tracking loop goes open or falls outside configured boundary ranges, the internal tracking register logs a device alarm code. Depending on software settings, it either switches instantly to the secondary feedback device or sets the output channel current to a pre-defined fail-safe position.

Q: Can the 5501-432 module be unseated from the backplane without loosening the front plate screws?

A: No. The card frame is anchored to the motherboard through fixed upper and lower screws. The integrated extraction levers must be toggled outward to mechanically pop the module pins loose from the backplane interface sockets.