Yokogawa PW484-51 Power Supply Module

The Yokogawa PW484-51 Power Supply Module is a high-performance industrial-grade power unit designed for process control systems. It is specifically built to ensure stable and reliable power delivery for Yokogawa’s automation and control equipment. As part of Yokogawa’s modular system design, the PW484-51 integrates seamlessly with distributed control systems (DCS), ensuring uninterrupted operation even in demanding environments such as chemical plants, oil refineries, and power generation facilities.

This module is engineered with redundancy support, high efficiency, and robust protection features. It provides regulated DC output to various system modules, safeguarding critical control functions from fluctuations or failures in the input power source. With a compact design, wide input voltage compatibility, and superior thermal management, the PW484-51 ensures long-term operational reliability in mission-critical applications.

Technical Specifications

Product Applications

The PW484-51 module is widely applied in sectors where reliability and continuous power supply are essential. Key industries include:

• Oil & Gas – ensures stable operation of distributed control systems in refineries and petrochemical plants.

• Power Generation – supports turbine control systems, monitoring equipment, and plant-wide automation.

• Chemical & Pharmaceutical – provides regulated DC power for automation controllers in hazardous and high-demand environments.

• Water & Wastewater – supports monitoring and control stations for pumps, treatment processes, and distribution systems.

• Manufacturing Automation – delivers stable supply for PLCs, controllers, and communication devices.

Product Advantages

• High Reliability: Built for continuous operation in harsh industrial conditions, minimizing downtime.

• Redundancy Support: Can operate in parallel with another module for fault-tolerant configurations.

• Robust Protection: Equipped with over-current, over-voltage, and short-circuit protection to safeguard both the module and connected equipment.

• Energy Efficiency: High conversion efficiency reduces energy loss and heat generation.

• Compact Modular Design: Easy to install in rack-mounted DCS systems, saving panel space.

• Global Compliance: Meets international safety and quality standards, ensuring suitability for worldwide installations.

FAQ

Q1: What is the maximum output current of the PW484-51 module?

A1: The maximum rated output current is 5 A at 24 V DC.

Q2: Can this module be used in a redundant power configuration?

A2: Yes, the PW484-51 supports dual redundancy, allowing two modules to operate in parallel for enhanced reliability.

Q3: What protection features are built into this power supply?

A3: The module includes protection against over-current, over-voltage, and short-circuit conditions.

Q4: Is the output voltage regulated under varying loads?

A4: Yes, the output is strictly regulated to 24 V DC, maintaining stability across load variations.

Q5: Does the PW484-51 require active cooling such as a fan?

A5: No, the unit is designed with efficient heat dissipation and relies on natural convection cooling.

Q6: Can the module operate in environments with high humidity?

A6: The PW484-51 is designed for industrial environments and can operate within standard humidity ranges specified for Yokogawa control systems.

Q7: Is hot-swapping supported for replacement during system operation?

A7: Yes, the PW484-51 is designed for hot-swappable installation within compatible Yokogawa racks.

Q8: What is the efficiency level of this power module?

A8: The efficiency is typically greater than or equal to 85%, reducing heat losses and improving performance.

Q9: Is the PW484-51 compatible with all Yokogawa control racks?

A9: It is compatible with specific Yokogawa racks designed for the CENTUM and related systems; compatibility should be verified during system design.

Q10: How does the module handle transient power disturbances?

A10: The PW484-51 is equipped with filtering and regulation circuits to suppress transients, ensuring stable DC output.