The 5466-253 (Model: 5466-253) is a high-density, multi-function I/O module engineered for Woodward’s MicroNet and MicroNet Plus control systems. As an "Analog Combo" board, it integrates analog inputs, analog outputs, speed sensing, and actuator driver circuits into a single hardware platform. This specialized 5466-253 (Part Number: 5466-253) is designed for Triple Modular Redundant (TMR) architectures, providing the fault-tolerant processing required for critical turbine governors and emergency shutdown systems.
Operating on the MicroNet HD (High Density) platform, the 5466-253 (Model: 5466-253) Revision H features enhanced signal processing algorithms that reduce noise interference in high-vibration turbine environments. By consolidating multiple I/O types—including high-resolution speed inputs for magnetic pickups—this module significantly reduces rack space requirements and wiring complexity. Its built-in diagnostic suite monitors loop integrity and internal power rail health, ensuring that any hardware anomaly is reported to the central CPU before it impacts process safety.
The 5466-253 (Model: 5466-253) is optimized for high-speed deterministic control in power generation and mechanical drive applications.
| Feature | Details |
| Manufacturer | Woodward |
| Model Number | 5466-253 |
| Revision | Rev H (Hardware Revision) |
| System Platform | MicroNet / MicroNet Plus / MicroNet HD |
| I/O Type | Analog Combo TMR (Triple Modular Redundant) |
| Analog Inputs | 8 Channels (Software selectable: 0–5 V or 4–20 mA) |
| Analog Outputs | 4 Channels (4–20 mA, 12-bit resolution) |
| Speed Inputs | 4 High-resolution channels (MPU or Proximity) |
| Actuator Outputs | 2 Proportional driver channels |
| Input Voltage | 24 VDC nominal (system backplane powered) |
| Operating Temp | -20°C to +70°C |
| Isolation | Channel-to-channel and channel-to-bus galvanic isolation |
| Weight | 1.85 lbs (0.84 kg) |
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