WOODWARD,5466-352
WOODWARD,5466-352
WOODWARD,5466-352
WOODWARD,5466-352
WOODWARD,5466-352
WOODWARD,5466-352
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5466-352

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The WOODWARD 5466-352 is a factory NetCon CPU 044 module for deterministic turbine/engine control, configured without Large Logic memory for safety-critical real-time execution.
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Technical specifications for 5466-352

  • Manufacturer:
    Woodward
  • Part Number:
    5466-352
  • Product Family:
    5400 Series
  • Product Type:
    NetCon CPU 044 Module
  • Control Task Capacity:
    Up to 2 ms task execution
  • Communication Ports:
    2x RS-232/485 (Modbus RTU master/slave), 1x Dedicated NetCon backplane
  • I/O Capacity:
    Up to 1024 local points (via chassis backplane)
  • Power Supply:
    +5 VDC / +24 VDC from NetCon rack
  • Power Dissipation:
    < 12 W
  • Operating Temperature:
    -40°C to +70°C (ambient, no forced air required)
  • Storage Temperature:
    -55°C to +85°C
  • Relative Humidity:
    5% to 95% non‑condensing
  • Vibration:
    5 g at10‑500 Hz (operating)
  • Weight:
    0.88 kg
  • Estimated shipping dimensions:
    2.5x24.5x26.1cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Applications Monitoring & Control Environmental Ratings

Features:

  • Deterministic Real‑Time Logic Execution
  • Native NetCon Chassis Integration
  • Extended Environmental Survivability
The WOODWARD 5466-352 excludes Large Logic memory by design, forcing the CPU to execute only core turbine control algorithms without scanning non‑critical blocks. This ensures sub‑millisecond jitter for overspeed detection and fuel valve modulation—essential for API 670 compliance.

The WOODWARD 5466-352 communicates directly over the high‑speed NetCon backplane, achieving deterministic I/O scans with local analog, digital, and speed sensor modules. There is no need for external couplers or protocol converters, reducing latency and point of failure.

Rated for -40°C to +70°C operation and 5 g vibration, the WOODWARD 5466-352 mounts directly in turbine control panels located outdoors or in non‑conditioned enclosures. Conformal coating on the PCB protects against humidity and airborne contaminants common in compressor stations and offshore platforms.

The 5466-352 Woodward NetCon CPU 044 Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Woodward 5466-352 NetCon CPU 044 Module Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Woodward 5466-352 NetCon CPU 044 Module

General

  • Manufacturer Woodward
  • Model 5466-352
  • Condition New Original ready stock
  • Product Family 5464-643,5464-648,5464-653
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Gas Turbine Generator Control:The WOODWARD 5466-352 executes fuel scheduling, inlet guide vane positioning, and generator load sharing in both single‑shaft and two‑shaft turbines, replacing legacy CPU 040 boards without rewiring.
  • Steam Turbine Overspeed Protection:With deterministic task execution, this CPU 044 module manages two‑out‑of‑three (2oo3) speed sensor voting and fast valve stroking, meeting API 611/612 requirements for mechanical drive steam turbines.
  • Reciprocating Compressor Sequencing:The WOODWARD 5466-352 controls start/stop sequences, unloader staging, and knock‑limit feedback on large bore gas compressors used in pipeline transmission or LNG terminals.
  • Legacy NetCon System Retrofit:When a 5466-334 or 5466-351 fails, the 5466-352 provides a form‑fit‑function replacement, extending the life of existing Woodward cabinets without a full control system upgrade.
  • Capabilities Real‑Time Diagnostic Variables:The WOODWARD 5466-352 exposes >50 internal diagnostic parameters (execution time, stack usage, communication error counters) via Modbus, enabling predictive maintenance in SCADA.
  • Hardware Watchdog with Fail‑Safe Reaction:An independent timer within the CPU 044 forces all I/O modules to predefined safe states (e.g., close fuel valves) if the main control task does not reset the watchdog every 250 ms.
  • Non‑Intrusive Online Monitoring:Using NetCon Tools connected to the debug port, engineers can view live variable trends, force outputs, and capture execution traces without stopping the turbine—critical for troubleshooting during production.
  • Event Sequence Logging:The module stores up to 512 time‑stamped events (power‑on, mode changes, watchdog resets, configuration downloads) in non‑volatile memory, retrievable via serial connection for forensic analysis.
  • Wide Ambient Temperature Range:Rated for -40°C to +70°C continuous operation, the WOODWARD 5466-352 functions reliably in unheated turbine enclosures during Arctic winters or inside desert solar‑heated control rooms without supplemental cooling.
  • High Vibration & Shock Immunity:Withstanding 5 g vibration (10‑500 Hz) and 30 g shocks, this CPU mounts directly on the backplane of a turbine skid subject to gas pulsation or generator magnetic forces, unlike commercial PLCs that require isolation mounts.
  • Humidity & Contaminant Protection:Factory conformal coating protects the:WOODWARD 5466-352 from 95% relative humidity and salt‑laden air (e.g., offshore platforms) as well as light dust typical of compressor stations. Not rated for immersion or high‑pressure washing.
  • ESD Hardened Design (With Proper Handling):Although internally containing Class‑1 ESD‑sensitive components, the WOODWARD 5466-352 passes 8 kV contact discharge per IEC 61000-4-2 when installed in a properly grounded chassis. Always use ESD straps during maintenance.
Description
Manufactured in Fort Collins, Colorado, the WOODWARD 5466-352 belongs to the proven NetCon family of programmable automation controllers. Unlike general-purpose PLCs, this CPU 044 variant is optimized for real-time closed-loop control of combustion turbines, steam turbines, and gas compressors. The "w/o LL Memory" designation ensures the firmware executes only essential control algorithms without overhead from large, non-critical logic blocks—delivering predictable scan times for overspeed protection and actuator positioning.

The WOODWARD 5466-352 operates reliably across extreme industrial environments, supporting a wide temperature range and high vibration tolerance common in power generation and oil & gas facilities. Its isolated communication ports maintain signal integrity even when installed near high-voltage switchgear or VFD drives. Because the module contains ESD-sensitive components, Woodward enforces strict factory assembly protocols, and field handling must follow ESD-safe practices—a critical detail for lifecycle management.

For system integrators, the WOODWARD 5466-352 drops directly into existing NetCon chassis and communicates over proprietary backplane protocols as well as standard Modbus RTU for SCADA connectivity. While this exact revision (REV 100) is not formally discontinued, Woodward has migrated many new projects to the MicroNet Plus series. However, the 5466-352 remains the preferred replacement for legacy turbine retrofits, and our stock includes new‑old‑stock units with factory packaging.
Alternative Names
5466 352 5464-643 5464-648 5464-653 5464-850 5466-026 5438-667 5462-757
Technical notes
The WOODWARD 5466-352 requires an external non‑volatile memory module for large logic storage; it cannot execute LL applications. Always verify your existing control program’s memory footprint before replacing a 5466-351 (w/ LL Mem) with this 5466-352 unit.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What firmware version does the WOODWARD 5466-352 require, and is it compatible with legacy control applications?
The WOODWARD 5466-352 ships without pre‑loaded firmware; you must download the correct runtime kernel using Woodward’s NetCon Tools software (version 2.06 or later). It is fully backward compatible with applications originally written for older CPU 040 modules, provided the logic does not exceed the “w/o LL Memory” limit (approximately 128 KB of non‑volatile logic space). Always perform a memory footprint analysis before commissioning.
Which communication protocols are supported by the WOODWARD 5466-352 for third‑party SCADA integration?
The WOODWARD 5466-352 supports Modbus RTU (master and slave) over its two isolated RS‑232/485 ports. It does not natively support Ethernet/IP or Profibus. For high‑speed data exchange with a DCS, use the backplane to communicate with a NetCon SIO module (e.g., 5466-402) which can bridge to Modbus TCP or OPC.
What are the environmental restrictions for installing the WOODWARD 5466-352 in a hazardous area?
The WOODWARD 5466-352 is not ATEX or IECEx certified for direct installation in Zone 1/2 explosive atmospheres. It must be housed in a purged or flameproof enclosure (IP54 or better) when used on a gas turbine located in a hazardous area. The module itself is rated for Class I, Div 2 (UL pending per revision), suitable for non‑incendive circuits only.
What are the step‑by‑step installation requirements for the WOODWARD 5466-352 to ensure ESD safety?
Before handling the WOODWARD 5466-352, ground yourself to the chassis earth point using a wrist strap. Insert the module into any empty CPU slot of a powered‑off NetCon main chassis (part number 5466‑353 backplane). Secure both top and bottom retaining screws to 0.45 N·m torque. Never force the card; if resistance is felt, check for bent backplane pins. After insertion, cycle power and verify the green “RUN” LED blinks at 1 Hz.

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