Woodward 5503-335 MicroNet 5200 CPU Control Module

Product Description

The 5503-335 MicroNet 5200 CPU module is the primary processing unit within Woodward’s MicroNet control architecture. Designed for continuous-duty industrial service, it delivers deterministic real-time control for rotating machinery and power generation systems operating in electrically and mechanically demanding environments.

This controller integrates a hardened embedded processor, industrial memory architecture, and redundant communication paths to ensure stable long-term operation. The 5503-335 is commonly deployed as the central logic engine in turbine, engine, and generator control panels where predictable response, fault tolerance, and lifecycle reliability are mandatory.

Core Hardware Architecture

The 5503-335 is built around an Intel Atom–class embedded processor optimized for industrial control workloads rather than general-purpose computing. System memory and storage are selected for thermal stability and low failure rates over extended operating life.

Key hardware characteristics include:

• Embedded Intel Atom CPU optimized for deterministic execution
• 4 GB industrial-grade DDR3 RAM
• Fanless conduction-cooled design
• Modular backplane connection for MicroNet 5200 systems
• Designed for continuous 24/7 operation

Electrical and Power Characteristics

The module operates from the standard MicroNet DC power infrastructure and maintains low thermal output for cabinet installations with limited airflow.

• Nominal supply voltage: 24 VDC
• Typical power consumption: 10–15 W
• Overvoltage category: CAT II
• Low internal heat dissipation to support dense control cabinets

Communication and System Interfaces

The 5503-335 supports multi-network industrial communication with built-in redundancy to maintain controller availability during network faults.

• Dual Ethernet ports supporting redundant network topologies
• Two configurable serial interfaces supporting RS-232 and RS-422
• Modbus protocol capability depending on firmware and system configuration
• High-speed internal communication with MicroNet I/O and expansion modules
• Integrated data logging and diagnostic access

Environmental and Mechanical Specifications

The controller is qualified for harsh industrial environments and compliant with recognized marine and power industry standards.

• Operating temperature range: 0 °C to +55 °C
• Storage temperature range: –20 °C to +45 °C
• Relative humidity: up to 95% non-condensing (tested per Lloyd’s Register cyclic profile)
• Maximum installation altitude: 4000 m
• Enclosure protection rating: IP20 per IEC 529
• Acoustic noise level: below 70 dBA
• Dimensions: 160 × 160 × 120 mm
• Weight: 1.8 kg

Control and Functional Capabilities

When deployed in a MicroNet 5200 system, the 5503-335 executes advanced control algorithms for prime movers and generators, including:

• Closed-loop speed and load regulation
• Generator load sharing and synchronization support
• Torque and manifold pressure limiting
• Low-speed and zero-speed sensing logic
• Automatic idle-to-rated speed transitions
• Soft loading and unloading sequences
• Load rejection and transient response handling
• Adaptive speed sensing and filtering algorithms
• Event recording, trending, and diagnostic reporting

Typical Application Areas

This CPU module is commonly applied in:

• Gas turbine control systems
• Steam turbine governors
• Diesel and gas engine management systems
• Generator set automation and synchronization panels
• Compressor and expander control packages
• Dual-fuel and hybrid turbine installations

Frequently Asked Questions

Is the 5503-335 compatible with earlier MicroNet systems? The 5503-335 is designed specifically for the MicroNet 5200 platform and is not directly interchangeable with earlier MicroNet or MicroNet Plus CPUs without system redesign.

Does this CPU support redundant network configurations? Yes. Dual Ethernet interfaces allow implementation of redundant or segregated control networks for high-availability applications.

Can firmware features vary by application? Yes. Supported protocols and control functions depend on installed firmware and project-specific configuration.