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5462-239 - Power Supply / Dual Input Card is available in stock which ships the same day.
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TECHNICAL SPECIFICATIONS:
Part Number: 5462-239
Manufacturer: Woodward
Series: Legacy Turbine Control Systems
Product Type: Power Supply / Dual Input Card
Nominal Input Voltage: 24 VDC / 120 VAC
Output Voltage Rails: +5 VDC, +15 VDC, -15 VDC
Input Channel Density: 2 Channels
Isolation Rating: 1000 Vrms
Efficiency Rating: > 80% (At full rated load)
Output Ripple / Noise: < 50 mV Peak-to-Peak
Over-Voltage Protection Threshold: +5.5 VDC / ±16.5 VDC
Input Voltage Tolerance: ±15% of Nominal
Analog RC Filter Time Constant: ~2.5 ms
Form Factor Frame Type: Proprietary Rack-Mount Card Edge PCBA
Operating Temperature Limits: 0°C to +60°C (+32°F to +140°F)
Storage Temperature Range: -40°C to +85°C (-40°F to +185°F)
Relative Humidity Threshold: 5% to 95% (Non-condensing)
Repair Time: 3-7 Days
Availability: In Stock
Weight: 1.15 kg (2.53 lbs)
Country of Origin: United States
The 5462-239 is a dual-purpose Power Supply and Dual Input Card designed and developed by Woodward for legacy turbine governor control chassis. This card serves as a localized power regulation node, taking external bulk distribution voltages and converting them into steady, filtered DC rails required by adjacent processing and logic cards. Additionally, it integrates a secondary hardware signal processing path that monitors dual independent field input sources, consolidating vital line status metrics into the main rack logic.
DUAL-SOURCE POWER REGULATION & TRANSIENT ISOLATION
The primary stage of the card features a high-efficiency switching regulation circuit designed to accept dual independent power inputs for redundancy management. These input lines pass through heavy-duty inductive chokes and metal-oxide varistors (MOVs) to clamp high-voltage spikes and high-frequency line noise. The internal transformation matrix down-converts the raw distribution levels into highly stabilized +5 VDC for digital logic execution, alongside balanced +15 VDC and -15 VDC rails for high-accuracy analog op-amp and instrumentation processing.
MULTI-CHANNEL INPUT BUFFERING & VOLTAGE MONITORING
Beyond power distribution, the 5462-239 processes dual independent external sensing lines through a hardware-isolated buffering array. These input channels monitor remote power contacts or critical system references, running them through discrete RC conditioning networks to eliminate contact bounce and line reflections. The board continuously tracks the health of both the incoming power feeds and its own internal DC rails; if any voltage parameter drifts out of safe operational tolerances, the on-card supervisory circuit triggers a hardwired fault line.
WHY BUY FROM WOC
World of Controls specializes in critical parts lifecycle extension for legacy and obsolete Woodward control panels. Every 5462-239 undergoes deep load-bank stress testing across all output rails, long-term thermal soaking to identify component breakdown thresholds, and complete input signal validation on dedicated test fixtures. We maintain active inventory reserves to bypass system downtime, backed by global express shipping and comprehensive warranties.
What is Woodward 5462-239?
The 5462-239 is a specialized Power Supply / Dual Input Card designed for legacy Woodward control assemblies. It acts as both a regulated power distributor supplying clean digital and analog voltage rails (+5V, ±15V) to the chassis and a dual-channel signal interface that filters and monitors incoming external field reference inputs.
What causes one of the front panel power status LEDs to turn off while the others stay lit?
This indicates a localized failure of that specific voltage regulation rail, often due to an overloaded circuit downstream or a failed internal filtering capacitor/linear regulator on the card. If the +5V rail fails, the card's digital logic will completely freeze.
What triggers a solid red front panel FAULT LED on this module?
The red FAULT LED activates if the internal monitoring logic senses that an incoming power source has dropped below acceptable voltage thresholds, or if the board's internal DC output rails experience an overvoltage or short-circuit condition.
How do you isolate a system-wide rack failure from a faulty 5462-239 power card?
Extract the card from the rack assembly and bench-test it using a controlled external power source. Measure the outputs across the designated card-edge test points using a digital multimeter; if the +5 VDC and ±15 VDC rails read clean and stable under a simulated load, the power bottleneck resides elsewhere in the chassis backplane or adjacent cards.
Can this module automatically handle power redundancy if one input source drops out?
Yes. The card's dual-input architecture utilizes steering diode matrices that seamlessly transition the internal regulation stages to the secondary input feed without interrupting the output rails, preventing turbine trips during localized power grid disruptions.
