Westinghouse 5X00241G02 Ovation DC Power Supply Module – 24V Input ±5V/±15V Output

Product Overview

The Westinghouse 5X00241G02 is a rack-insertion DC/DC power supply module engineered specifically for the Westinghouse Ovation and WDPF II distributed control systems (DCS). As a critical component within the Ovation controller rack, the Westinghouse 5X00241G02 performs the essential function of converting the cabinet’s 24V DC bus voltage into the regulated +5V and ±15V rails required by the CPU/DPU logic cards and analog I/O modules. Unlike the large-capacity AC/DC rectifier modules typically mounted at the top of control cabinets, this module is a compact, dedicated DC/DC converter designed to serve the power needs of a single rack’s card population, making the Westinghouse 5X00241G02 a vital link in the power distribution chain of the Ovation architecture.

In the Ovation system hierarchy, the Westinghouse 5X00241G02 occupies a role that is unglamorous yet indispensable. The module receives 24V DC input from the cabinet bus—typically ranging from 18V to 36V DC to accommodate normal voltage fluctuations—and delivers approximately 8A at +5V for the logic circuitry and roughly 0.5A at both +15V and -15V for analog signal conditioning. This power conversion must be exceptionally clean and stable, as any ripple or dropout on the +5V rail directly threatens the operational integrity of the controller’s processing elements. When the Westinghouse 5X00241G02 fails, the consequences are immediate: the entire rack’s DPU and I/O cards go offline, and the operator interface typically reports a “Drop x Power Fail” alarm, signaling that the affected control node has lost power.

The Westinghouse 5X00241G02 is distinguished by its purpose-built integration with the Ovation platform, including LED status indicators for input and output health, comprehensive protection against overload, over-temperature, and short-circuit conditions, and a design that supports either single or redundant (1+1) power configurations depending on rack specifications. The module’s compact form factor and natural convection cooling make it suitable for the densely packed card cages typical of Ovation installations, where space is at a premium and forced-air cooling may not be available. As plants continue to operate Ovation systems well beyond their original design life, the Westinghouse 5X00241G02 remains a high-demand spare, underscoring its enduring role in maintaining control system availability.

Technical Specifications