YOKOGAWA PW702 Power Supply Unit | Replacement, Equivalent & Selection Guide
The YOKOGAWA PW702 is a dedicated DC power supply module designed for use within YOKOGAWA’s CENTUM series Distributed Control Systems (DCS). It provides stable, regulated power to field control stations and I/O modules, ensuring continuous and reliable process automation. This page serves as a comprehensive selection, replacement, and compatibility reference for engineers and procurement teams sourcing the PW702 or its functional equivalents.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | PW702 |
| Manufacturer | YOKOGAWA Electric Corporation |
| Series | CENTUM DCS Power Supply Series |
| Module Type | DC Power Supply Unit |
| Weight | 2,140 g (approx.) |
| Mounting | DCS Field Control Station (FCS) rack-mount |
| Application | CENTUM CS / CENTUM VP / CENTUM XL compatible systems |
| Condition Available | New, Refurbished, Tested |
Note: Full electrical specifications (input voltage range, output voltage/current, ripple, protection class) should be confirmed against the official YOKOGAWA PW702 datasheet or contact our technical team.
Compatible Replacement & Equivalent Models
When the PW702 is unavailable or discontinued, the following models may serve as functional replacements depending on your system configuration. Always verify compatibility with your specific FCS revision before substitution.
| Model | Manufacturer | Compatibility Notes |
|---|---|---|
| PW701 | YOKOGAWA | Earlier generation; verify output ratings match |
| PW481 | YOKOGAWA | CENTUM VP redundant power option; different form factor |
| PW482 | YOKOGAWA | Redundant PSU for CENTUM VP; confirm slot compatibility |
| PW301 | YOKOGAWA | CENTUM CS 3000 series; check FCS bus voltage |
| Third-party PSU | Various | Must match output voltage, connector pinout, and rack form factor — not recommended without engineering review |
⚠ Important: Substitution of power supply modules in live DCS environments must be performed by qualified automation engineers. Incorrect replacement can cause system faults or process shutdowns.
Why Choose the Original YOKOGAWA PW702
- OEM Guaranteed Compatibility: Designed and tested specifically for YOKOGAWA CENTUM FCS racks — zero integration risk.
- Proven Reliability: YOKOGAWA power modules are engineered for 24/7 continuous operation in demanding industrial environments.
- Regulatory Compliance: Meets applicable IEC/JIS standards for industrial control system power supplies.
- Redundancy Support: Supports hot-standby redundant power configurations when paired with compatible modules.
- Long Service Life: Built for extended lifecycle in process industries including oil & gas, chemicals, and power generation.
Typical Applications
- Oil & Gas upstream/downstream process control
- Chemical and petrochemical plant automation
- Power generation and utilities DCS infrastructure
- Pharmaceutical manufacturing process control
- Pulp, paper, and continuous process industries
- Water treatment and environmental control systems
System Compatibility
| YOKOGAWA DCS Platform | Compatibility |
|---|---|
| CENTUM CS 1000 | Verify with system revision |
| CENTUM CS 3000 | Compatible (confirm FCS generation) |
| CENTUM VP | Compatible (primary target platform) |
| CENTUM XL | Verify with legacy documentation |
| ProSafe-RS | Not applicable (safety system uses dedicated PSU) |
Selection Guide
Use the following criteria to confirm the PW702 is the correct module for your application:
- Identify your FCS model number — check the nameplate on the Field Control Station cabinet.
- Confirm the power supply slot designation — PW702 occupies a specific slot in the FCS baseplate; verify slot type (single vs. redundant).
- Check output voltage and current requirements — match against your I/O module load calculations.
- Determine redundancy requirement — if redundant power is required, confirm whether a second PW702 or a different redundant PSU model is needed.
- Review firmware/hardware revision compatibility — older FCS revisions may require specific PSU hardware revisions.
Not sure which model fits your system? Contact our technical team with your FCS model and revision number for a free compatibility check.
Quality Assurance & Sourcing
- Source: Konmask.com sources PW702 units from authorized distributors, certified refurbishers, and verified surplus channels.
- Testing: All refurbished units undergo functional power-on testing and output voltage verification before shipment.
- Warranty: Refurbished units carry a 90-day replacement warranty. New OEM units carry the manufacturer’s standard warranty.
- Traceability: Documentation including test reports and sourcing records available upon request for critical applications.
- Export Compliance: All orders processed in accordance with applicable export control regulations (ECCN/EAR).
How to Order
- Add the YOKOGAWA PW702 to your cart and proceed to checkout.
- For bulk orders (5+ units), B2B pricing, or lead time inquiries — email [email protected] or call +0086 19859288691.
- Provide your FCS model and revision number if requesting a compatibility confirmation before purchase.
- International shipping available — DDP/DAP terms available for qualified accounts.
Replacement & Compatibility FAQ
Q: Can the PW702 be hot-swapped in a running CENTUM VP system?
A: Hot-swap capability depends on whether your FCS is configured with redundant power. In a redundant configuration, the standby PSU maintains power during replacement. Always consult your system documentation and qualified personnel before attempting live replacement.
Q: Is the PW702 still in production by YOKOGAWA?
A: Production and active support status changes over time. Contact Konmask.com for current availability of new vs. refurbished stock, and for information on YOKOGAWA’s recommended migration path if the module is discontinued.
Q: What is the difference between PW702 and PW482?
A: The PW482 is designed for redundant power configurations in CENTUM VP and has a different form factor and connector arrangement. The PW702 is a standard (non-redundant pair) power supply. Confirm your FCS slot type before ordering.
Q: Can I use a generic industrial PSU as a replacement?
A: Not recommended. YOKOGAWA FCS power supply slots have specific connector pinouts, output voltage profiles, and communication interfaces. Using non-OEM modules risks system faults and voids support agreements.
Q: Do you provide a certificate of conformance (CoC)?
A: Yes, CoC and test reports are available upon request for refurbished units. Please specify this requirement when placing your order.
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