Yokogawa PW482-10 S2 Power Supply

Configured for stable internal backplane voltage conversion in CENTUM and ProSafe-RS control racks, the Yokogawa PW482-10 S2 (PW482-10 Power Supply Module) provides direct physical/electrical execution. The hardware converts external line AC or DC power into dual DC voltage output rails to drive system controllers, bus interface cards, and local I/O electronics. It maintains tight output regulation across high-power 12 VDC and low-power 24 VDC supply lines without introducing voltage droop under load.

Hardware Specifications

4-20 mA HART Loop Protocol and Channel Isolation

The Yokogawa PW482-10 S2 power supply incorporates galvanic isolation between primary AC/DC input power lines and secondary DC backplane outputs. This insulation barrier prevents field power surges and line transients from damaging downstream processor boards or leaking into parallel analog loops. The regulated 24 VDC output rail delivers clean, ripple-free current to field loops, preventing power supply noise from distorting continuous 4-20 mA HART loop protocol signal transmission and analog-to-digital conversions.

Frequently Asked Questions

Q: What are the primary DC output voltages supplied by the Yokogawa PW482-10 S2 module?

A: The module generates dual internal DC output rails consisting of a high-power 12 VDC rail and a low-power 24 VDC rail.

Q: Can the PW482-10 S2 module be configured in a redundant power setup?

A: Yes, dual PW482-10 S2 modules can be installed side-by-side in compatible Yokogawa power supply slots to provide seamless 1-to-1 power supply redundancy.

Q: What line input power configurations are supported by the module family?

A: Depending on the specific system rack backplane wiring, the module accepts standard AC input voltages (such as 220-240 VAC) or direct 24 VDC power.

Field Installation Guidelines

1. Isolate primary external AC or DC power feeds before sliding the PW482-10 S2 module into the designated power supply slot.
2. Align the module card edges with the top and bottom rack guide rails and slide the unit until the rear power connectors engage firmly.
3. Fasten the top and bottom front panel retention screws to establish secure physical attachment and chassis ground bonding.
4. Terminate incoming line power connections at the designated power terminal block, ensuring correct polarity and proper grounding of the protective earth (PE) lead.
5. Ensure unobstructed ventilation above and below the power module rack slot to prevent internal thermal accumulation during full-load operation.