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5461-654 - 8 Channel RTD Module is available in stock which ships the same day.
5461-654 - 8 Channel RTD Module comes in UNUSED as well as REBUILT condition.
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TECHNICAL SPECIFICATIONS:
Part Number: 5461-654
Manufacturer: Woodward
Series: NetCon / MicroNet Series
Product Type: 8 Channel Resistance Temperature Detector (RTD) Input Module
Channel Density: 8 Dedicated Isolated RTD Channels
Supported RTD Sensors: 100 Platinum
Sensor Wiring Configuration: 3-Wire or 4-Wire RTD Input Connections
Temperature Measurement Range: -40°C to +500°C (-40°F to +932°F)
A/D Conversion Resolution: 16-Bit High-Precision Analog-to-Digital Conversion
Measurement Accuracy: 0.1%
Temperature Coefficient Drift: < 25°C
Excitation Current Source: Precision Onboard Constant Current Generator
Isolation Barrier: Galvanic Channel-to-Channel & Channel-to-Bus Isolation
Dielectric Isolation Voltage: 500 VDC (Field-to-Logic / Slot-to-Slot)
Power Consumption: 4.8 W (Typical) / 6.8 W (Maximum)
Input Voltage Rail: +5 VDC
Form Factor Frame Type: Single-Slot Chassis Plug-in Card
Mounting Type: Standard VME / Chassis Backplane Slot Mount
Front Panel Interface: Channel Sampling & Board Fault Lamps
Diagnostic Supervision: Open-Loop Detection
Operating Temperature Limits: -40°C to +70°C (-40°F to +158°F)
Storage Temperature Range: -40°C to +85°C (-40°F to +185°F)
Relative Humidity Threshold: 5% to 95% (Non-condensing)
Conformal Coating: Polyurethane / Acrylic Industrial PCB Protection
Vibration & Shock Standard: MIL-STD-810 & IEC 60068-2-6 Compliant
Repair Time: 3–7 Days
Availability: In Stock
Weight: Approximately 1.20 kg (2.65 lbs)
Country of Origin: United States
The 5461-654 is an 8 Channel RTD Module designed and manufactured by Woodward. Operating as a high-precision analog temperature sensing card within NetCon and MicroNet digital control chassis, it acquires high-accuracy temperature readings from bearing pads, stator windings, turbine exhaust frames, and hydraulic fluid sumps. By processing resistance changes directly from RTD sensors and digitizing them for backplane transmission, the 5461-654 provides deterministic thermal telemetry required for critical prime mover protection, thermal sequencing, and alarm monitoring.
PRECISION A/D CONVERSION & LEAD-RESISTANCE COMPENSATION
Equipped with 8 isolated temperature input channels, the 5461-654 utilizes 16-bit analog-to-digital converters paired with precision excitation current sources to evaluate sensor resistance. The module automatically compensates for field lead-wire resistance in 3-wire and 4-wire sensor setups, eliminating measurement drift across long cabling runs between the turbine skid and control panel. Onboard galvanic isolation barriers prevent ground loops, electrical noise, and common-mode voltage spikes from interfering with micro-ohm temperature measurements.
TRANSDUCER FAULT DETECTION & THERMAL THRESHOLD ALERTS
To prevent incorrect control actions caused by field wiring failure, the 5461-654 continuously tests the electrical continuity of connected temperature elements. The onboard logic isolates short circuits, broken element wires, and out-of-range resistance spikes in real time. Visual status lamps on the front fascia indicate active sampling and channel health. Upon identifying a failed sensor loop, the card immediately passes a bad-quality flag to the central processing engine, allowing governor algorithms to freeze current output demands or initiate controlled load reductions before unsafe bearing temperatures are reached.
WHY BUY FROM WOC
World of Controls specializes in the supply, repair, and lifecycle management of critical Woodward turbine control system components for legacy and active industrial applications worldwide. Every Woodward 5461-654 8 Channel RTD Module undergoes a comprehensive testing process, including multi-point decade-box resistance calibration, lead-wire compensation verification, open-circuit/short fault simulation, and thermal performance testing on live Woodward test chassis. We maintain ready-to-ship inventory of unused and professionally rebuilt modules, providing customers with fast replacement solutions to reduce turbine downtime. Backed by expert repair and exchange services, warranty support, global shipping capabilities, and extensive experience with Woodward NetCon and MicroNet control platforms, we deliver dependable solutions for critical turbine control system maintenance and modernization requirements.
What is Woodward 5461-654?
The Woodward 5461-654 is an 8 Channel RTD Module used in NetCon and MicroNet control systems. It converts resistance measurements from RTD sensors installed on turbines and generators into digital temperature values for system control and over-temperature protection.
How does the RTD Module compensate for long sensor cable runs?
The module utilizes 3-wire and 4-wire ratiometric measurement techniques to measure and subtract lead-wire resistance from total circuit resistance, ensuring exact temperature calculations even across long distances from field junction boxes.
What causes an open-circuit fault on an RTD channel?
An open-circuit fault is typically triggered by a broken RTD element, severed sensor wiring, loose terminal block screws, or corrosion on field connections. When an open loop is detected, the module drives the channel value off-scale high and alerts the control software.
Where can I buy a Woodward 5461-654 8 Channel RTD Module?
The Woodward 5461-654 RTD module can be purchased from industrial automation spare parts suppliers specializing in Woodward turbine control systems. World of Controls supplies unused and rebuilt Woodward 5461-654 modules with full testing, warranty support, and repair or exchange options.
