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5462-237 - N2 Speed Control Card is available in stock which ships the same day.
5462-237 - N2 Speed Control Card comes in UNUSED as well as REBUILT condition.
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TECHNICAL SPECIFICATIONS:
Part Number: 5462-237
Manufacturer: Woodward
Series: MicroNet / NetCon Series
Product Type: N2 Speed Control Module / Governor Control Card
Application: Power Turbine (N2) Speed Control
Control Function: Closed-Loop N2 Speed Governing
Speed Feedback: Frequency-Based
Sensor Type: Magnetic Pickup (MPU) / Proximity Transducer
Signal Type: Pulse / Frequency
Signal Processing: Digital
Electrical Isolation: Optical Channel-to-Logic
Fault Detection: Signal Loss / Open Circuit / Out-of-Range
Installation: Chassis Plug-in Card
Form Factor: Rack-Mount Slot
PCB Protection: Conformal Coating
Operating Temperature: -40�C to +70�C (-40�F to +158�F)
Storage Temperature: -40�C to +85�C (-40�F to +185�F)
Relative Humidity: 5% to 95%
Availability: In Stock
Country of Origin: United States
The 5462-237 is an N2 Speed Control Module designed and manufactured by Woodward for turbomachinery digital control platforms. Functioning within multi-shaft gas turbine installations, it monitors the free power turbine (N2) shaft speed to execute high-precision closed-loop governing, load regulation, and overspeed protection routines. The module processes pulse-frequency signals generated by magnetic pickups (MPUs) or proximity probes positioned over shaft gear teeth, translating raw telemetry into real-time digital parameters used for fuel positioning and turbine control.
PRECISION N2 SPEED GOVERNING & SIGNAL PROCESSING
The board converts high-frequency AC voltage signals from field speed sensors into precise digital values across a wide dynamic frequency range. Onboard signal conditioning filters out shaft runout artifacts, power supply ripple, and high-frequency electrical noise, enabling stable speed feedback required for tight turbine speed regulation and smooth grid synchronization under dynamic load demand changes.
HIGH-VOLTAGE OPTICAL CHANNEL BARRIERS
High-voltage optical channel-to-logic isolation barriers shield central processing electronics from field-side electrical disturbances across every input channel. Complete electrical separation prevents external ground potential shifts, inductive switching spikes, and high-voltage transients on field wiring from penetrating the central system bus or degrading control loop accuracy.
LOOP INTEGRITY AUDITING & HARDWARE FAULT DETECTION
Integrated supervision circuitry continuously monitors speed sensor loop health, signal continuity, and onboard power distribution. In the event of an open sensor circuit, missing pulse stream, or out-of-range signal anomaly, diagnostic fault flags report directly to the central controller while front-panel LEDs provide immediate visual feedback for rapid field troubleshooting.
WHY BUY FROM WOC
World of Controls provides global sourcing, testing, refurbishment, and lifecycle support for genuine Woodward control equipment used in critical turbomachinery applications. Each N2 Speed Control Card undergoes pre-dispatch inspection and functional validation, including multi-frequency signal simulation, channel response verification, electrical isolation checks, threshold calibration, and fault-detection testing. Units are available in UNUSED surplus and professionally REBUILT conditions, subject to stock availability, with applicable warranty coverage and technical support. With ready-to-ship inventory and global express delivery, WOC offers a dependable solution for replacement and maintenance requirements while helping customers minimize equipment downtime.
What is Woodward 5462-237?
The Woodward 5462-237 is an N2 Speed Control Card used in turbomachinery control systems for monitoring and regulating power turbine shaft speed. It processes speed signals from magnetic pickups (MPUs) or compatible proximity transducers and provides precise N2 speed feedback for closed-loop governing, load regulation, and turbine protection.
What type of speed signal does the Woodward N2 Speed Control Card process?
The N2 Speed Control Card is designed to process shaft-speed signals from compatible magnetic pickups (MPUs) and proximity transducers. The input circuitry conditions the sensor signal so that the control system can use reliable frequency information for N2 speed monitoring and governing.
How does the 5462-237 convert N2 speed sensor signals into usable feedback?
The module receives pulse-frequency signals generated by the shaft-speed sensing system and conditions the incoming signal before providing processed speed information to the turbine control system. The resulting feedback is used for closed-loop speed regulation and associated control functions.
What are the common symptoms of a failing N2 speed sensor?
Possible symptoms include unstable N2 feedback, loss of speed indication, intermittent input response, incorrect speed readings, persistent diagnostic faults, or abnormal channel behavior. These symptoms are not necessarily conclusive of card failure and should be investigated together with the associated field instrumentation.
What testing should be performed on a rebuilt Speed Control Card?
A professionally rebuilt unit should undergo appropriate inspection and functional testing based on its intended application. Testing may include input-signal simulation, channel response verification, isolation checks, diagnostic verification, calibration checks, and operational testing under controlled conditions.
