PS35*A Yokogawa Power Supply Module

Configured for AC-to-DC power conversion and system rail bus distribution in Yokogawa control systems, the Yokogawa PS35*A (PS35 Power Supply Module) provides direct physical/electrical execution.

Hardware Specifications

Channel Isolation & Loop Power Infrastructure

The PS35*A power supply module incorporates internal galvanic isolation barriers between primary AC line connections, DC system buses, and protective ground earth. Galvanic decoupling prevents line transients and electrical noise from contaminating internal logic circuits and field loops, preserving signal resolution across attached 4-20 mA HART loop protocol transmitters and analog I/O modules.

Frequently Asked Questions

Q: How does electrical isolation inside the PS35*A protect downstream controller hardware?

A: Isolation transformer stages decouple the primary AC input line from the internal DC output rails, blocking common-mode noise and high-voltage surges from damaging controller backplanes.

Q: What mounting configurations support the physical installation of the PS35*A module?

A: The module supports direct DIN rail mounting or panel faceplate attachment depending on the base cabinet layout and carrier frame specification.

Field Installation Guidelines

Mount the PS35*A module securely onto the designated DIN rail track or cabinet panel baseplate. Verify that protective earth ground wiring is solidly bolted to the chassis ground terminal prior to applying primary AC power. Route incoming AC power connections in separate conduit runs away from low-voltage DC signals and 4-20 mA instrumentation lines to mitigate electromagnetic interference.