Technical Overview
The Yokogawa PW301 functions as a robust power module for the CENTUM VP field control unit (FCU) and ProSafe-RS safety systems. This unit converts 100–240 VAC input into regulated DC outputs, ensuring stable power distribution to backplane components. Its high-efficiency design minimizes heat generation within the control cabinet, while the fanless construction reduces mechanical wear. The PW301 includes comprehensive protection features, including overvoltage, overcurrent, and short-circuit safeguards.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Yokogawa Electric Corporation |
| Product Type | Power Module / Power Supply Unit |
| System Compatibility | CENTUM VP, ProSafe-RS |
| Input Voltage | 100–240 VAC |
| Input Frequency | 47–63 Hz |
| Output Voltage | 5 VDC (primary) / 24 VDC (secondary) |
| Output Current | 10 A (5 V) / 3 A (24 V) |
| Efficiency | ≥ 85% |
| Power Dissipation | 45 W (typical) |
| Inrush Current | ≤ 20 A (at 240 VAC) |
| Hold-up Time | 20 ms |
| Protection Features | Overvoltage, overcurrent, short-circuit |
| Dimensions (H x W x D) | 140 x 50 x 130 mm |
| Weight | 0.85 kg |
| Operating Temperature | -10°C to +60°C |
| Storage Temperature | -25°C to +75°C |
| Protection Class | IP20 |
| Certifications | CE, CSA, UL, TÜV |
Power Conversion and Efficiency
The Yokogawa PW301 delivers stable DC outputs to power control modules and field instruments reliably. Its high efficiency reduces energy consumption and operating costs over the module’s service life. Furthermore, the 20 ms hold-up time ensures continuous operation during brief power interruptions, preventing system resets or data loss.
Protection and Diagnostic Features
This power module incorporates overvoltage and overcurrent protection that automatically limits output under fault conditions, protecting connected equipment. It also provides short-circuit protection, ensuring safe shutdown during wiring faults or component failures. Diagnostic LEDs on the front panel provide immediate visual feedback for input power, output status, and alarm conditions.
Integration and Physical Characteristics
The PW301 mounts directly into CENTUM VP and ProSafe-RS chassis, simplifying system assembly and maintenance procedures. Its fanless construction reduces noise and eliminates a common failure point, enhancing overall system reliability. With its rugged design and wide operating temperature range, the PW301 is suitable for demanding applications in oil and gas, chemical, and power generation industries.
Details
| Weight | 0.85 kg |
|---|---|
| Dimensions | 140 × 50 × 130 mm |
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