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5464-843 - 4-Channel Speed Module is available in stock which ships the same day.
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TECHNICAL SPECIFICATIONS:
Part Number: 5464-843
Manufacturer: Woodward
Series: NetCon 5000 Series
Product Type: 4-Channel Speed Sensing Module
Channel Density: 4 Independent Speed Input Channels
Sensor Compatibility: Magnetic Pickups (MPUs) & Proximity Transducers
Input Signal Processing: Frequency-to-Digital Signal Conversion
Galvanic Isolation: High-Voltage Optical Channel-to-Logic Isolation
Backplane Interface: Standard VMEbus Architecture
Form Factor: Chassis Plug-in Card (VME Slot Mount)
Front Panel Interface: Board Health Status & Diagnostic LED Indicators
Operating Temperature Limits: -20°C to +55°C (-4°F to +131°F)
Storage Temperature Range: -40°C to +85°C (-40°F to +185°F)
Relative Humidity Threshold: 5% to 95% (Non-condensing)
Conformal Coating: Industrial Grade PCB Protection
Availability: In Stock
Country of Origin: United States
The 5464-843 is a 4-Channel Speed Module manufactured by Woodward for the NetCon 5000 digital control system platform. Designed for high-reliability speed detection and turbomachinery governing, it processes pulse-train frequency signals generated by magnetic pickups (MPUs) or proximity probes positioned over gear teeth or keyways on rotating shafts. This module converts raw frequency inputs into accurate digital speed parameters, supplying critical real-time data for closed-loop speed control, load sharing, and overspeed trip logic across industrial turbines and engines.
MULTI-CHANNEL FREQUENCY SENSING & SPEED CONTROL
With four independent speed channels, the card supports redundant sensing topologies or multi-shaft speed monitoring within a single VME slot. It converts incoming AC voltage signals or pulse trains into high-resolution speed values across a broad dynamic frequency range, delivering stable speed feedback required for tight turbine governing and engine speed regulation.
HIGH-VOLTAGE OPTICAL CHANNEL BARRIERS
High-voltage channel-to-logic optical isolation barriers protect sensitive backplane electronics from severe electromagnetic interference across every input line. Complete separation prevents external field ground loops, inductive switching spikes, and high-voltage transients from penetrating the central control bus or damaging upstream processing units.
INDUSTRIAL SIGNAL CONDITIONING & EMI REJECTION:
Isolating internal microprocessors from field wiring disturbances maintains stable frequency processing in high-noise environments such as power plants and heavy mechanical drive installations. Dedicated signal conditioning filters out high-frequency electrical noise, shaft runout artifacts, and electromagnetic interference, ensuring accurate speed calculation and preventing uncommanded system trips.
LOOP INTEGRITY AUDITING & HARDWARE FAULT DETECTION:
Integrated supervision circuitry continuously monitors sensor circuit health, input signal integrity, and backplane communication status. In the event of an open sensor circuit, missing pulse stream, or out-of-range frequency anomaly, diagnostic alarm flags report directly to the central controller while front-panel status LEDs illuminate for rapid visual troubleshooting.
WHY BUY FROM WOC
World of Controls specializes in the global distribution, testing, and lifecycle support of genuine Woodward governor and digital control equipment. Every unit undergoes rigorous pre-dispatch validation on live test racks, including multi-channel frequency calibration, threshold checks, optical isolation verification, and extended thermal burn-in. Our team maintains ready-to-ship stock of UNUSED surplus and professionally REBUILT modules, fully supported by comprehensive warranty coverage, express global shipping, and expert technical guidance.
What is Woodward 5464-843?
The Woodward 5464-843 is a 4-Channel Speed Module designed for the NetCon 5000 control platform. It acts as a specialized frequency input card that reads raw rotational pulse signals from field sensors and converts them into precise digital speed data used for prime mover governing, acceleration tracking, and overspeed protection loops.
Which sensors are compatible with the Speed Module?
The module is designed for compatible speed-sensing devices that provide frequency-based signals, including magnetic pickups (MPUs) and suitable proximity sensors.
What is an MPU speed signal?
A magnetic pickup (MPU) generates an electrical signal as ferromagnetic gear teeth or similar rotating features pass the sensor. The resulting frequency is related to the rotational speed of the shaft.
How does gear-tooth frequency relate to shaft speed?
The sensor generates pulses as teeth pass the pickup. The pulse frequency is determined by both shaft rotational speed and the number of sensing teeth on the rotating target.
