Description
1. At-A-Glance Executive Brief
- Model: PW482-10
- Brand: Yokogawa
- Part Type: AC Input Power Supply Module
- System Compatibility: Centum CS / Centum VP DCS Racks
- Weight: 1.11 kg
- Lifecycle Status: Mature / Legacy Support Tier
2. Technical Introduction
Unexpected power supply failures in legacy Centum CS or Centum VP controller racks often trigger catastrophic system trips and costly facility downtime. Sourcing obsolete hardware usually involves rolling the dice on unverified secondary-market sellers whose inventory lacks proper electrical verification. This Yokogawa PW482-10 power module drops directly into the standard backplane slot to deliver regulated dual-rail DC power, restoring nominal 5.1V and 24V outputs to the rack bus without requiring rewiring or engineering software changes.
3. Core Technical Specifications
| Parameter | Value |
| Manufacturer | Yokogawa |
| Model Number | PW482-10 |
| Module Style | S2 Power Module |
| AC Input Voltage | 220–240 VAC |
| Input Frequency | 50 / 60 Hz |
| Input Current | 1.3 A |
| Primary DC Output | 5.1 VDC at 7.8 A |
| Secondary DC Output | 24 VDC at 1.7 A |
| Hazardous Location Rating | Class I, Div. 2, Groups A, B, C, D T4 |
| Unit Weight | 1.11 kg |
4. Field Engineer’s Tech Notes
- Load Calculation & Derating: Verify total rack current draw before installation, especially if legacy I/O cards or communication modules were added during previous modifications. Running this supply near its thermal ceiling without adequate cabinet ventilation accelerates electrolytic capacitor dry-out.
- Inrush Current & Protection: The unit draws a sharp initial surge upon energization. Ensure upstream circuit breakers are sized with proper time-delay curves (such as Type D) to prevent nuisance tripping during cold startups.
5. Adaptive QA & Testing Protocol
Every unit undergoes automated bench testing under simulated full-load conditions to verify dual-rail regulation stability. Testing involves applying nominal 230 VAC input and measuring voltage ripple under stepped loads on both the 5.1VDC and 24VDC outputs. Thermal soak cycles confirm component stability prior to warehouse dispatch. Certified test reports and validation videos can be supplied upon request to verify operational health.
6. Buyer’s FAQ
- What warranty covers this replacement power supply?All units carry a standard 12-month replacement warranty from the invoice date.
- What is the typical shipping lead time for urgent plant outages?In-stock items ship same-day via priority air couriers if ordered before the daily cutoff time.
- Are these modules verified original OEM hardware or aftermarket clones?Every item is genuine Yokogawa surplus stock, verified for physical traceability and component integrity.
- Is this revision backward compatible with older Centum CS controller racks?Yes, the -10 suffix matches the exact form, fit, and electrical pinouts required for designated Centum architectures.
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