PW301
May 14, 2026

PW301

The PW301 is a high‑reliability, hot‑swappable power supply module for Yokogawa CENTUM CS3000 and CENTUM VP DCS systems. It provides regulated DC power to FCUs, I/O modules, and communication units, ensuring stable operation in critical industrial control environments.

Description

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The PW301 is a high‑reliability, hot‑swappable power supply module for Yokogawa CENTUM CS3000 and CENTUM VP DCS systems. It provides regulated DC power to FCUs, I/O modules, and communication units, ensuring stable operation in critical industrial control environments.

2. Key Features

  • Redundancy Support: Dual‑module hot‑swap configuration; no system shutdown required for replacement.

  • Wide Input Range: Accepts 100–240 V AC (50/60 Hz) or 24 V DC input for global compatibility.

  • Multiple Outputs: Supplies +5.1 V DC (15 A), +12 V DC, and +24 V DC to system components.

  • High Efficiency: Up to 90% efficiency to reduce heat and energy consumption.

  • Built‑in Protections: Overvoltage, overcurrent, short‑circuit, and overtemperature protection.

  • EMI Shielding: Metal enclosure minimizes electromagnetic interference.

3. Specifications

  • Model: PW301

  • Type: Modular power supply for DCS

  • Input Voltage: 100–240 V AC ±10% (50/60 Hz) or 24 V DC

  • Output Voltages: +5.1 V DC (15 A), +12 V DC, +24 V DC

  • Max Output Power: 60 W

  • Ripple & Noise: <1 mV p‑p

  • Regulation: ±0.5% (line and load)

  • Operating Temperature: 0°C to +50°C

  • Storage Temperature: −20°C to +70°C

  • Humidity: 5%–95% RH (non‑condensing)

  • Dimensions (W×H×D): 32.8 × 130 × 144.5 mm

  • Weight: 0.3 kg

  • Installation: Rack‑mount in FCU cabinet slots

4. Installation and Configuration

  • Mounting: Install in designated FCU cabinet slots; supports single or dual (redundant) setup.

  • Wiring: Connect AC input to rear screw terminals; route DC output to backplane.

  • Redundant Operation: Install two PW301 modules for automatic load sharing and failover; hot‑swap faulty module without interrupting system power.

5. LED Indicators

  • POWER (Green): On when input power is normal.

  • READY (Green): On when all outputs are stable and within regulation.

  • FAULT (Red): On if overvoltage, overcurrent, short circuit, or overtemperature occurs; flashes during fan failure.

6. Diagnostic and Protection

  • Self‑Diagnostics: Continuously monitors input voltage, output voltages, current, and internal temperature.

  • Fault Response: Shuts down outputs and triggers FAULT LED during protection events; latches fault status until power cycle.

  • Alarm Reporting: Sends fault data to FCU and HMI for maintenance alerts.

7. Application

  • Systems: CENTUM CS3000, CENTUM VP DCS.

  • Applications: Petrochemical, power generation, refining, water treatment, and other process industries.

  • Usage: Powers FCUs, I/O modules, ESB bus couplers (e.g., EC401‑50), and communication modules in control cabinets.


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