Description
Product Parameters
- Model Number: 5501-469
- Revision: REV C
- Manufacturer: Woodward
- System Platform: Netcon 5000 Control System
- Processor Type: High-performance industrial microprocessor
- Operating Voltage: 5V DC (via backplane)
- Memory Configuration: Integrated RAM and Flash memory for application storage
- Communication Ports: RS-232, RS-422, and specialized Netcon bus interfaces
- Diagnostics: Front-panel LED status indicators (Run, Fault, IO Status)
- Operating Temperature: -40°C to +70°C (Industrial Grade)
- Clock Speed: Optimized for real-time deterministic control loops
The Woodward 5501-469 REV C is a powerful central processing module designed specifically for the Netcon 5000 series industrial control platform. As the “brain” of the system, it executes complex control algorithms for turbines, engines, and power generation equipment, ensuring high-speed data processing and seamless synchronization between various input/output modules across the Netcon backplane.
Differences from Similar Models
The 5501-469 REV C contains specific hardware and firmware enhancements that distinguish it from earlier versions and alternative CPU cards:
- Revision C Improvements: Unlike REV A or B, the Revision C board features updated surface-mount components that offer better thermal stability and resistance to electromagnetic interference (EMI) in high-voltage environments.
- Processing Throughput: The 469 variant is often clocked higher than the 5501-465 or 466 models, providing the necessary overhead for advanced PID loops and triple-modular redundancy (TMR) calculations.
- Memory Density: This specific model includes an expanded non-volatile memory buffer, allowing for larger application files and more extensive event logging compared to standard 5501 series CPUs.
- Compatibility: While newer 5501-series modules may use different communication protocols, the 5501-469 REV C maintains legacy support for older Netcon 5000 I/O racks, making it a preferred choice for system life-extension projects.
Product Operation Tips
- Firmware Verification: Before installing a replacement 5501-469 REV C, ensure the firmware revision matches the other CPUs in the rack. In redundant systems, mismatched firmware can prevent the “Standby” CPU from taking over during a fault.
- Backplane Inspection: Inspect the gold-plated pins on the 96-pin DIN connector before insertion. Bent pins can cause intermittent communication “ghost” errors that are difficult to diagnose once the system is live.
- Static Protection: Always use an ESD (Electrostatic Discharge) wrist strap when handling this module. The REV C architecture uses high-density CMOS components that are extremely sensitive to static voltages invisible to the human eye.
- Battery Maintenance: If the module has been in storage for over a year, check the onboard lithium battery. This battery maintains the RAM-cached real-time clock and certain volatile parameters; a low voltage can cause “Checksum Error” alarms during boot-up.
