Product Core Brief

• Model: PW482-50 S2
• Brand: YOKOGAWA
• Series: CENTUM CS 3000
• Core Function: 220-240V AC input power supply module for CENTUM CS 3000 Field Control Station
• Product Type: DCS FCU Power Supply Module
• Key Specs: 220-240V AC input | S2 style | Redundant FCU rack-mount
• Condition: New Original / New Surplus

Key Technical Specifications

• Product Type: FCU Power Supply Module
• Compatible System: CENTUM CS 3000 DCS
• Input Voltage: 220-240V AC
• Suffix Code: -50 (standard type with no explosion protection)
• Style Code: S2
• Application: Field Control Station (FCS/FCU) power distribution
• Mounting Type: FCU rack slot
• Redundancy Support: Yes — dual-redundant configuration requires two identical modules with the same suffix and style code
• Hot-Swap Capable: Yes
• Status Indicators: LED power/fault indicators
• Operating Temperature: -20°C to +70°C (temperature option range for PW482 series)
• Humidity: 10% to 90% RH, non-condensing
• Origin: Japan

⚠️ Exact output voltage and current rating should be confirmed against the FCU rack nameplate or site BOM before ordering.

Product Introduction

The PW482-50 S2 is a 220-240V AC input power supply module for the YOKOGAWA CENTUM CS 3000 Field Control Station. The “-50” suffix indicates the standard type without explosion protection, and “S2” is the style code. It supports dual-redundant installation so a single module failure does not interrupt the control station.

This is a critical spare for sites running 220-240V AC power feeds into the FCU rack. Keeping a matched spare on hand avoids extended downtime during emergency swaps. This unit is supplied as new original or new surplus, depending on stock availability.

QA & Testing SOP

Each unit is inspected before dispatch:

• Visual & connector inspection: Check front panel, housing, backplane connector pins, labeling, and signs of heat stress, corrosion, or pin damage.
• Authenticity verification: Confirm YOKOGAWA branding, model marking, suffix code -50, style code S2, serial/lot information, and connector quality to screen non-OEM parts.
• FCU rack power-on test: Install the module into a compatible CENTUM CS 3000 FCU test rack and verify power-up behavior and LED indicators.
• Output voltage check: Measure regulated DC output under no-load and resistive load using a calibrated DC load and Fluke multimeter.
• Redundancy handover test: Where test conditions allow, verify dual power supply operation and failover behavior without disturbing adjacent modules.
• Anti-static packaging: Packed in ESD-safe shielding bags with protective foam to prevent transit damage.

Installation Pitfalls & Guide

❗ Match suffix and style codes exactly. For dual-redundant operation, both modules must share the same suffix (-50) and style (S2). Mixing PW482 variants can prevent proper redundancy.

❗ Confirm your site voltage before ordering. The PW482-50 is a 220-240V AC input module. If your site runs 100-120V AC, you need the PW481 series instead.

❗ Never remove both power supplies at the same time. In a redundant FCU rack, pulling both units simultaneously can shut down the entire station.

❗ Do not force the module into the slot. FCU backplane connectors are precision-mated. Bent pins can damage both the module and the rack.

Replacement steps:

1. Pre-install: Verify slot position, redundancy status, suffix -50, style S2, and cabinet input voltage.
2. Removal: Loosen retaining screws, confirm the standby unit is healthy, and withdraw the module straight out.
3. Install: Align the guide rails, slide the module in firmly but gently, and secure the front-panel screws.
4. Power-on test: Confirm LED status, output voltage, FCU rack health, and redundancy operation.

Technical FAQ

Is pricing flexible for multiple units? Yes. Price depends on condition, quantity, and lead time. New original and new surplus units are quoted separately. Send your quantity and we can provide a project-level quote.

What warranty is included? Standard warranty is 12 months from shipment for functional defects. This covers pre-shipment or manufacturing failures, not damage from incorrect installation, wrong input voltage, or environmental misuse.

What does the “-50” suffix mean? The “-50” suffix indicates the standard type with no explosion protection for the PW482 220-240V AC input module. For redundant pairs, both modules must match.

Can I substitute or ? No. The PW482-10 and PW482-50 are different variants. Always match the exact suffix and style code for redundant configurations. Confirm against your site BOM before ordering.

Is this still available given CS 3000 obsolescence? CS 3000 is a mature platform, and original factory supply is limited. We source tested new surplus and remaining OEM stock to support existing installations. If you need multiple units, confirm availability early.