Woodward 5501-467 MicroNet Simplex Main Power Supply Module

The Woodward 5501-467, also cataloged as the 5501-467 Main Power Supply, operates as a dedicated hardware component for delivering regulated DC power within MicroNet Simplex platforms.

Hardware Specifications

Industrial Drives, Governors, and Speed Control Properties

The power module performs direct energy conversion to feed processing units and variable geometry actuators linked to the electronic governor network. The design integrates a specialized 1-cycle ride-through holdup circuit at 120 Vac to suppress momentary grid voltage drops, preventing unintended processor resets that disrupt actuator loop feedback response routines. To withstand localized electrical disturbances inherent to heavy industrial power grids, the module features built-in harmonic distortion suppression stages and heavy-duty industrial shielding. Internal heat sink dissipation profiles are calibrated to sustain maximum power outputs of 531 W under continuous operations within hot turbine cabinet enclosures.

Frequently Asked Questions

Q: What are the discrete line isolation behaviors when running a dual-input configuration?

A: The internal switching architecture manages distinct voltage inputs separately. It accepts low-voltage 24 Vdc or high-voltage 120 Vac/Vdc standards, protecting the central MicroNet backplane components from line transients via internal galvanic boundaries.

Q: How does the power supply handle localized thermal overloads?

A: The device monitors its internal thermal thresholds via self-diagnostic circuitry. If internal limits are exceeded, the hardware trips the front-panel Overtemperature indicator LED and modulates or shuts down its output states to protect internal component groups.

Q: What are the exact protective fusing requirements for the distinct input lines?

A: For the 24 Vdc input loop, a 50 A time-delay fuse or circuit breaker is required. For the 120 V input circuit, the line must be protected by a 20 A rated branch circuit breaker or fuse.

Field Installation Guidelines

• Chassis Grounding and Shield Integrity: Ensure the module is mechanically locked into the MicroNet chassis frame using the designated mounting hardware. Direct chassis metal-to-metal contact is mandatory to establish an optimal ground path for the heavy-duty industrial shielding and internal noise filters.
• Input Power Wiring Disconnects: External power routing must include dedicated, accessible circuit breakers or fuses sized per the 50 A (24 V) or 20 A (120 V) specifications. Use separate conduit entries for high-voltage 120 Vac/Vdc and low-voltage 24 Vdc lines to mitigate mutual inductive interference.
• Thermal Management Ventilation: Mount the chassis in an orientation that permits unhindered vertical convection through the power supply ventilation slots. Maintain the ambient cabinet temperature below +60 deg C to prevent the activation of the internal overtemperature safety trip.