Yokogawa SPW484 Power Supply Module

The Yokogawa SPW484 is a high-capacity, industrial-grade Power Supply Module engineered to support the increasing power demands of CENTUM VP and CENTUM CS 3000 distributed control systems (DCS). As a next-generation power module, it delivers stable and regulated 24V DC output, designed to supply Field Control Stations (FCS), processors, and I/O modules with dependable energy in mission-critical environments.

Featuring enhanced redundancy capabilities, the SPW484 can operate in parallel with another unit for seamless failover and intelligent load sharing. Its advanced protection features, real-time monitoring through LED indicators, and support for wide input voltage ranges make it a key part of any reliable and scalable DCS infrastructure.

This module ensures long operational life and is optimized for continuous 24/7 plant operations, providing safe, efficient, and uninterrupted power even under demanding industrial conditions.

Product Specifications

Product Applications

The SPW484 Power Supply Module is a critical power component across a wide variety of industries and process environments. Its usage ensures that distributed control systems remain operational, even in challenging power conditions.

Primary applications include:

• Oil & Gas Refineries – Delivers stable power to DCS nodes in hazardous areas and processing units.

• Chemical and Petrochemical Plants – Supports uninterrupted control of reactors and continuous processing systems.

• Power Generation Plants – Supplies processors and safety systems in turbine control and plant-wide operations.

• Water and Wastewater Treatment Facilities – Maintains power to telemetry units, flow sensors, and pump stations.

• Pharmaceutical Manufacturing – Provides clean and regulated power to automation platforms in GMP environments.

• Pulp and Paper Mills – Ensures long-term performance of distributed control stations in humid and harsh conditions.

Its redundancy-ready design makes it ideal for industries where downtime is not acceptable and system reliability is paramount.

Product Advantages

• High Output Capacity: With up to 12A current delivery, it can power extensive I/O setups and controller modules.

• Redundancy Support: Can be configured in N+1 redundancy for uninterrupted power supply.

• Auto Voltage Switching: Automatically adapts to local power grids, enhancing flexibility and global usability.

• Intelligent Protection: Advanced safety features prevent damage from overloads, surges, and overheating.

• Energy Efficient: High efficiency reduces energy loss and heat generation, increasing system lifespan.

• Real-time Monitoring: On-module LED indicators enable quick diagnostics and operational transparency.

• Compact Form Factor: Space-saving design fits into standard Yokogawa backplates without modifications.

• Environmental Durability: Capable of handling extreme industrial temperatures and humidity conditions.

• Standard Compliance: Certified to meet international electrical and environmental safety regulations.

• Long-Term Operability: Built for durability with an extended service life and minimal maintenance needs.

Frequently Asked Questions (FAQ)

1. What is the maximum output power of the SPW484?

   It can deliver up to 288W, supporting up to 12A at 24V DC.

2. Can I use SPW484 in a redundant power configuration?

   Yes, it supports dual redundant configurations with automatic failover and load sharing.

3. Is the module suitable for global AC inputs?

   Absolutely. It accepts 100–120V and 200–240V AC inputs with automatic voltage selection.

4. What protections are built into the SPW484?

   It includes over-voltage, over-current, short-circuit, and thermal shutdown features.

5. Does the SPW484 require active cooling?

   No, it uses natural convection for cooling, making it more energy-efficient and quieter.

6. Is this module hot-swappable?

   It is not hot-swappable unless installed in a redundant configuration, where replacement can occur without shutdown.

7. What does the LED indicator show?

   The LEDs indicate power status, communication health, and any system alarms.

8. What is the recommended maintenance interval?

   A visual inspection and functional check every 12 to 18 months is ideal.

9. Where is it installed in a control system?

   The SPW484 mounts onto a dedicated baseplate inside a Yokogawa system cabinet.

10. What systems is it compatible with?

    It is fully compatible with CENTUM VP, CENTUM CS 3000, and other Yokogawa DCS platforms.