Product Core Brief
- Model: PW701
- Brand: YOKOGAWA
- Series: CENTUM VP
- Core Function: Power supply module for CENTUM VP Field Control Station
- Product Type: DCS FCU Power Supply Module
- Key Specs: CENTUM VP FCU compatible | Redundant power supply slot | Hot-swappable
- Condition: New Original / New Surplus
Key Technical Specifications
- Product Type: FCU Power Supply Module
- Compatible System: CENTUM VP DCS
- Application: Field Control Station (FCS/FCU) power distribution
- Mounting Type: FCU rack slot
- Redundancy Support: Yes (dual power supply configuration)
- Hot-Swap Capable: Yes
- Status Indicators: LED power/fault indicators
- Operating Temperature: 0°C to 55°C (typical FCS range)
- Storage Temperature: -25°C to 70°C
- Humidity: 10% to 90% RH, non-condensing
- Origin: Japan
⚠️ Exact input voltage range, output voltage, and current rating depend on the FCU revision and site configuration. Confirm against your cabinet nameplate or site BOM before ordering.
Product Introduction
The PW701 is a power supply module used in the YOKOGAWA CENTUM VP Field Control Station. It provides regulated power to the FCU rack and supports redundant installation so a single power supply failure does not trip the control station.
For plants running CENTUM VP, this is a high-priority spare. Power supply failures are among the most common causes of unexpected FCU downtime, and a verified replacement keeps turnaround schedules intact. 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, serial/lot information, and connector quality to screen non-OEM parts.
- FCU rack power-on test: Install the module into a compatible CENTUM VP 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
❗ Never remove both power supplies at the same time. In a redundant FCU rack, pulling both units simultaneously can shut down the entire station.
❗ Confirm which unit is active before removal. Check LED status and system diagnostics first. Remove the standby unit first whenever possible.
❗ Do not force the module into the slot. CENTUM VP FCU backplane connectors are precision-mated. Bent pins can damage both the module and the rack.
❗ Verify input power before energizing. Confirm the FCU cabinet supply voltage, grounding, and breaker status. A wrong supply or poor ground can damage the module immediately.
Replacement steps:
- Pre-install: Verify slot position, redundancy status, model number, and cabinet input power.
- Removal: Loosen retaining screws, confirm the standby unit is healthy, and withdraw the module straight out.
- Install: Align the guide rails, slide the module in firmly but gently, and secure the front-panel screws.
- 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 power, or environmental misuse.
Is the PW701 directly compatible with CENTUM VP? Yes. It is designed for the CENTUM VP Field Control Station. Always confirm your FCU rack type and existing BOM before substitution.
Can I hot-swap this power supply? CENTUM VP FCU modules generally support hot replacement, but only when redundancy is healthy. Removing the only working power supply will interrupt the control station.
Is this still available? CENTUM VP remains widely installed, but specific FCU power supply stock can vary. We source tested new surplus and remaining OEM inventory. If you need multiple units, confirm availability early.
