Description
Key Features
Power Specifications
- Input Voltage: 100–240V AC (50/60 Hz) or 125V DC (optional)
- Output Voltage: 24V DC (±1% regulation)
- Output Current: 10A (continuous, 50°C derating)
- Efficiency: >85% (typical)
- Redundancy: Supports parallel operation with another PW481 for N+1 backup
Protection & Diagnostics
- Overload Protection: Auto-reset after fault clearance
- Overvoltage/Undervoltage Shutdown: Safeguards connected equipment
- LED Indicators: Power status (AC/DC input, output, fault)
- Hot-Swappable: Replace without system shutdown (in redundant setups)
Compatibility
- Systems: CENTUM VP, ProSafe-RS, and FIO (Field I/O) units
- Enclosures: Fits standard Yokogawa racks (e.g., ARR11x series)
Environmental
- Operating Temperature: -20°C to +70°C
- Certifications: CE, UL, and IEC 61010-1 compliant
Suffix Code Breakdown (PW481-50-S2)
| Suffix | Description |
|---|---|
| -50 | Standard AC/DC input range |
| -S2 | Style 2 (2015 hardware revision) |
| -E | Explosion-proof variant (e.g., PW481-50-E) |
Note:
- Style 2 (S2): Includes improved thermal management vs. older revisions.
- For DC-only input, check model PW481-51.
Typical Applications
- DCS Power Backup: Redundant power for Field Control Stations (FCS)
- I/O Module Power: Supplies AAI141, AAR145, and other FIO modules
- Safety Systems: ProSafe-RS power redundancy
Installation & Wiring
- Mounting: Install in designated power supply slots of Yokogawa racks.
- Wiring:
- AC Input: Use shielded cables for noise immunity.
- DC Output: Connect to power distribution terminals.
- Redundancy:
- Parallel with a second PW481 using load-sharing cables.
SKU: YOKO-PW48150S2
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