Product Description

The PW442-10 is a versatile AC-to-DC power supply module designed for Yokogawa STARDOM FCN-500 and legacy FCN/FCJ controller platforms. It accepts a wide AC input range for global compatibility and delivers a regulated 5.1 V DC output to the backplane, ensuring reliable operation of processor and I/O modules. The fanless, natural convection design provides long-term reliability in both remote and central control installations.

Technical Specifications

Core Functional Highlights

• Wide-range AC input: Eliminates the need for separate 110V and 220V variants.

• EMI and power factor management: Advanced filtering ensures minimal electrical noise for sensitive instrumentation.

• Redundant operation: Active load-sharing mechanism in duplex configurations provides fail-safe protection and reduces thermal stress, extending module life.

• Fanless, natural convection cooling: Enhances reliability in remote or densely packed cabinets.

Common Technical Questions

Q: Can the PW442-10 be used in the same base unit as a DC power module?
A: No. While duplex slots exist, it is recommended to use identical power modules (e.g., two PW442-10 units) for balanced electrical characteristics and predictable failover behavior.

Q: How does the module indicate a failure?
A: The PW442-10 has built-in diagnostics that report via the internal bus to the CPU. A “Power Fail” alarm is triggered if output drops below threshold, and a front-panel LED provides immediate visual confirmation.