Description
The Yokogawa PW301 is a highly reliable power supply module engineered for the CENTUM CS 3000 Distributed Control System (DCS). It converts external AC power into the stabilized DC voltages required for the system’s internal hardware components, ensuring continuous operation of I/O modules and processors in critical industrial environments.
Key Specifications
- Model Number: PW301
- System Compatibility: CENTUM CS 3000 / R3
- Input Voltage: 100-120V AC or 220-240V AC (Auto-sensing)
- Output Voltage: Specialized internal DC bus voltages
- Mounting: Standard Node Unit / I/O Rack slot
Technical Parameters
- Input Frequency: 50/60 Hz
- Power Consumption: Max 320 VA
- Withstand Voltage: 1500V AC between input and ground
- Insulation Resistance: 20M ohms @ 500V DC
- Operating Temperature: 0°C to 50°C
Application Fields
- Petrochemical refinery control rooms
- Natural gas processing and LNG terminals
- Large-scale power generation and distribution
- Iron and steel manufacturing automation
- Pharmaceutical and chemical production plants
Product Q&A
- Q: Does the PW301 support redundancy?
- A: Yes, it is typically installed in pairs within a power supply nest to provide dual-redundant power for the system.
- Q: How can I check the health of the power supply?
- A: The module features front-panel status LEDs (Ready/Fault) and reports diagnostic status to the HIS (Human Interface Station).
- Q: Is this module hot-swappable?
- A: Yes, in a redundant configuration, one PW301 can be replaced while the other continues to power the system.
- Q: Does it include overvoltage protection?
- A: Yes, it incorporates built-in overcurrent and overvoltage protection circuits to shield the DCS hardware.
