I/O modules

The Woodward PCU1000 is a critical Triple Modular Redundant (TMR) power supply module. This unit is a core component of the Woodward MicroNet family of digital engine and turbine controllers. It ensures ultra-reliable and continuous power delivery for safety-critical control systems.

Engineers specify this module for its robust design and fault-tolerant architecture. The redundant power paths within the PCU1000 maintain system operation even during a single failure. Consequently, it is essential for demanding applications in power generation and marine propulsion.

Key Features and Reliability Design

This power supply module provides complete electrical isolation between its input and outputs. Its TMR design typically incorporates three independent, synchronized power conversion circuits. Furthermore, the module includes comprehensive diagnostics for monitoring its own health status.

The Woodward PCU1000 integrates seamlessly into the MicroNet controller rack assembly. It supplies clean, regulated DC power to all other processor and I/O modules in the system. Therefore, it forms the foundational power infrastructure for high-availability control applications.

Typical Applications and Importance

This module is deployed wherever controller uptime is non-negotiable, such as in base-load power plants. Its design meets the rigorous demands of applications requiring SIL 2 or SIL 3 safety integrity levels. Typical installations include controlling gas turbines, steam turbines, and large reciprocating engines.

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