Woodward 9907-551 Redundant Power Supply Module

Product Brief Introduction The Woodward 9907-551 redundant power supply module is a backup power unit for the 9907 control rack. Two modules can run in parallel redundant mode. When one power supply fails, the other automatically bears the full load to supply stable 24VDC power for all control and I/O modules, avoiding system outage caused by single power failure.
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Technical Specifications Wide-range AC/DC input, 24VDC regulated output. Operating temperature: -40℃ ~ +70℃, with overvoltage, overcurrent and short-circuit protection.

Functional Features Voltage stabilization, parallel load sharing, fault alarm, seamless backup switching, output filtering.

Application Scenarios Critical generator control racks, gas turbine control systems, equipment requiring uninterrupted control power.

Performance Parameters Low output ripple, balanced load distribution, no power interruption during switching, high conversion efficiency.

Structural Characteristics Rack pluggable power module, power normal and fault LED indicators, built-in cooling structure.

Working Principle Under normal condition, two power modules share the load evenly. Once one module fails and stops output, the other takes over all load instantly without cutting off power for the rack.

Installation Requirements Install in dedicated power slots of the rack, reserve enough ventilation space for heat dissipation.

Usage Notes Test redundant switching function regularly, replace faulty power module immediately when alarm occurs.




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