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Key Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 5466-1035 |
| Manufacturer | Woodward |
| Product Type | MicroNet CPU5200 Processor Module |
| Processor | MPC5200 |
| RAM | 128 MB DDR |
| Flash Memory | 64 MB |
| Real-Time Clock | Yes (included) |
| Input Voltage | 110 VAC / 125 VDC |
| Output Voltage Rating | 24 VDC, 16 A |
| Speed Sensing Range | 1 to 30 Vac |
| Potential Voltage Range | 80–150 V |
| Coder Version | 4.06 to 5.04 (MicroNet Plus) |
| Usage | MicroNet Plus (also TMR5200 for 3-2-0 TMR systems) |
| Operating Temperature | −40 to +85 °C |
| Dimensions | 461 mm (H) × 265 mm (W) × 59 mm (D) |
| Communications | 2× Ethernet, 1× RTN port, 1× Serial, 1× Service, 2× CAN |
| FPGA | Yes (VMEbus master/slave + redundant system functions) |
| Redundancy Mode | Simplex or redundant (TMR requires 3 CPUs) |
| Safety Certification | CSA Class 1, Division 2 |
| Country of Origin | United States (USA) |
| Status | Non-Preferred (not for new installations; supported for spare/repair) |
| Introduction Year | 2005 (MicroNet Plus), 2009 (TMR) |
| Inactive Since | 2015 (component obsolescence) |
| Repair Support | 5+ years after inactivation (if feasible) |
Product Introduction
Woodward 5466-1035 is a MicroNet CPU5200 processor module that serves as the primary computational engine for high-availability turbine and generator control systems. It uses an MPC5200 processor with 128 MB DDR RAM, 64 MB flash, a real-time clock, and an FPGA for VMEbus master/slave capability and redundant system functions.
This module is rated for MicroNet Plus systems (coder 4.06–5.04) and is also used in TMR (Triple Modular Redundant) configurations as TMR5200 for 3-2-0 operation. It supports simplex and redundant modes, but a TMR system cannot run on a single CPU—three CPUs are required for TMR operation. Status is Non-Preferred per Woodward’s 2024 obsolescence notice, meaning it is not for new installations but remains supported for spare units and repairs.
- 5466-1035
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| CPU not recognized by chassis | Poor backplane contact or wrong slot | ✅ High | Reseat CPU; inspect backplane pins for bending/corrosion | Reseat carefully; verify slot matches MicroNet Plus/TMR requirements |
| No communication on Ethernet ports | Network cable fault, wrong IP, or CPU fault | ✅ High | Ping the CPU IP; check cable continuity; verify subnet | Check network config first; replace CPU if ping fails after confirming wiring |
| RTOS/Boot failure (stuck on startup) | Corrupted firmware or FPGA mismatch | ✅ High | Check firmware version via service port; read diagnostic buffer | Contact Woodward for FPGA/firmware update (post-2011 units can be updated) |
| TMR system won’t sync | CPU mismatch or coder version mismatch | ✅ High | Verify all 3 CPUs have same part number and coder version (4.06–5.04) | Replace mismatched CPUs; ensure all 3 are identical for 3-2-0 operation |
| Slow scan time or timeouts | Insufficient RAM or overloaded application | ✅ Medium | Check application size vs 128 MB RAM; monitor CPU load | Optimize application or upgrade to newer CPU if application is too large |
| Red fault LED on CPU | Hardware fault or firmware error | ✅ High | Read fault code via service software; check LED status chart | Replace if hardware fault is confirmed; repair support available if feasible |
| Real-time clock drift | Failed RTC battery or module aging | ✅ Medium | Check time sync against reference; compare with last maintenance log | Replace CPU if RTC continues to drift; may indicate overall module aging |
| VMEbus communication error | FPGA fault or backplane bus failure | ✅ High | Check VMEbus status in diagnostic buffer; test with known-good backplane | Replace CPU if FPGA fault confirmed; check backplane if multiple CPUs fail |
Contact Woodward Turbine Help Desk at 1-970-498-3095 or [email protected] with photos and diagnostic logs for OEM support. Post-2011 CPU5200s can be updated to the current revision by Woodward—provide serial numbers when contacting.
Frequently Asked Questions
Q: Is the Woodward 5466-1035 still in production?
A: No, it is Non-Preferred per Woodward’s 2024 obsolescence notice. It is not for new installations, but Woodward still supports spare units and repairs for existing systems. Repairs are typically supported for 5+ years after inactivation if feasible.
Q: What does this module do?
A: It is the primary CPU for MicroNet Plus and TMR control systems, handling real-time control of gas turbines, diesel engines, or generator sets. It processes speed, temperature, and pressure data and communicates via Modbus, CANopen, Ethernet, and RTN to superior DCS/SCADA systems.
Q: Can I use this for a new system installation?
A: No. Woodward explicitly states this is Non-Preferred and not for new installations. For new installations, use the current preferred options: 5466-1511 or -1521 for MicroNet Plus, and 5466-1247 or -1347 for MicroNet TMR.
Q: Does this support TMR (Triple Modular Redundant) operation?
A: Yes, as part of the TMR5200 family. However, a TMR system cannot run on a single CPU—you need three identical CPUs for 3-2-0 operation. All three must have the same part number and coder version.axcontrol+1
Q: Can I hot-swap this CPU?
A: No, not in this configuration. CPUs in redundant/TMR systems require careful handling. Power down before removal or installation to avoid damaging the backplane or other modules.
Q: What coder versions are compatible?
A: This module supports MicroNet Plus coder versions 4.06 to 5.04. If your application uses a different coder version, you may need to upgrade the CPU or update the application.
Q: Can post-2011 units be updated?
A: Yes. CPU5200s manufactured after 2011 can be updated by Woodward to the current revision. Contact Woodward with the CPU serial numbers for more information.
Q: Why is this cheaper than buying new from the OEM?
A: This is legacy hardware available as unused surplus or rebuilt inventory, not current OEM production. The lower price reflects limited availability and its Non-Preferred status, not a different operating principle.
Q: What should I check before ordering?
A: Confirm the exact part number (5466-1035), verify your system is MicroNet Plus (not a new installation), check your coder version (must be 4.06–5.04), and confirm the module condition (unused vs rebuilt). Also verify warranty terms and whether repair support is available for your specific serial number.
