World Of Controls understands the criticality of your requirement and works towards reducing the lead time as much as possible.
5432-269 - Woodward Speed Channel Control Board is available in stock which ships the same day.
5432-269 - Woodward Speed Channel Control Board comes in UNUSED as well as REBUILT condition.
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TECHNICAL SPECIFICATIONS
Part Number: 5432-269
Manufacturer: Woodward
Series: MicroNet / Legacy Control Systems
Product Type: Speed Channel Control Board / Card
Input Channels: Dedicated Magnetic Pickup (MPU) / Proximity Input Lines
Frequency Detection Window: 10 Hz to 25,000 Hz
Processing Architecture: Real-Time Frequency-to-Digital Converter Matrix
Signal Accuracy: $pm0.05%$ of Full-Scale Range
Galvanic Isolation Protection: 500 Vrms Minimum (Channel-to-Backplane)
Onboard Power Requirements: Low-Power Internal Logic Draw via Rack Motherboard
Form Factor Configuration: Proprietary Slot Plugin Circuit Board Assembly (PCBA)
Operating Temperature Limits: -20°C to +65°C (-4°F to +149°F)
Relative Humidity Threshold: 95% Non-condensing
Repair Time: 3-5 Days
Availability: In Stock
Weight: 0.85 kg (1.87 lbs)
Country of Origin: United States
The Woodward 5432-269 is a rack-mounted Speed Channel Control Board designed to serve as a core velocity feedback module within legacy prime mover and turbine governing networks. This specialized hardware card is engineered to calculate precise, high-resolution rotational dynamics from critical high-speed machine components. Converting raw mechanical frequency pulses into accurate digital telemetry, it allows the master CPU system to monitor transient state shifts and handle primary fuel governor tracking loops.
ANALOG SIGNAL CONDITIONING FRONT-END
The card interfaces directly with passive magnetic pickup (MPU) or active proximity sensors mounted adjacent to the turbine gear tooth configurations. The incoming low-level sinusoidal or pulsed AC waveforms pass through an onboard input stage featuring high-performance zero-crossing detectors and dedicated hardware noise filters. This conditioning structure clips incoming transient voltage spikes, attenuates line reflections, and suppresses electromagnetic noise generated by adjacent industrial gear.
HIGH-SPEED PULSE DECODING & BACKPLANE BRIDGE
Once converted into clean, uniform square-wave pulses, the frequency data is processed by dedicated onboard digital counter-timer logic. This real-time processing block tracks the exact period between pulses to calculate velocity metrics with minimal propagation lag. The calculated digital speed metrics are instantly loaded onto the system's parallel backplane bus data lanes, providing the main control processor with a real-time feedback loop tracking every few milliseconds.
WHY BUY FROM WOC
World of Controls delivers certified component replacements to extend the life of legacy industrial control systems. Every 5432-269 speed channel card undergoes rigorous verification on live testing rigs, including active MPU frequency simulation across its entire 25,000 Hz processing envelope, backplane communication trace validation, and complete thermal sweep stability testing. We maintain deep stock inventories in both UNUSED and REBUILT options to eliminate field downtime and protect your capital assets.
What is the Woodward 5432-269?
The 5432-269 is a high-precision speed channel control board that tracks rotating machinery velocity via magnetic pickup or proximity sensors. It processes raw analog frequency pulses into high-resolution digital data to feed the prime mover's central governing loop. This real-time velocity reporting enables the system CPU to adjust fuel injection curves instantaneously during transient load shifts.
How does the 5432-269 isolate real speed data from environmental line noise?
The card features specialized front-end hardware noise filters paired with high-performance zero-crossing detection circuits at its input terminals. This combination isolates genuine gear-tooth frequency signals while attenuating transient voltage spikes and high-voltage electromagnetic interference. Additionally, a 500 Vrms galvanic barrier prevents field-side ground loop noise from corrupting the internal rack backplane.
Can this module track low turning-gear speeds as accurately as peak operating rates?
Yes, the onboard frequency-to-digital counter matrix features a dynamic processing envelope calibrated from 10 Hz up to 25,000 Hz. This broad operating span allows the card to monitor an asset across its entire runtime cycle, capturing low-velocity cranking cycles during startup and high-frequency thresholds during overspeed safety tests.
What diagnostics occur if a speed sensor cable fails in the field?
The board incorporates passive trace diagnostics that continuously monitor sensor loop continuity and incoming signal health. If a field MPU wire suffers an insulation ground fault or drops open-circuit, the card immediately flags a loss-of-signal fault. It zeros out its active speed registers, triggering systemic alarm interlocks to keep the turbine from running unmonitored.
