Excellent PLC
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| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Introduction
The Yokogawa SPW482 is a high-reliability power supply module designed to provide regulated power for Field Control Stations (FCS) in Yokogawa’s CENTUM VP and CENTUM CS 3000 distributed control systems. As part of Yokogawa’s modular DCS architecture, the SPW482 plays a critical role in supplying stable DC voltage to processor modules and I/O cards housed in a system cabinet.
Built for redundancy, the SPW482 can operate in standalone or parallel-redundant mode, ensuring uninterrupted power even in the event of a module failure. Its intelligent load-sharing design helps balance power output when used with a second SPW482 in redundant configurations, minimizing system downtime and maintenance.
This module is known for its long operating life, robust performance under harsh industrial conditions, and intelligent diagnostics, making it a core power infrastructure component in mission-critical automation systems across industries.
Product Specifications
| Parameter | Description |
|---|---|
| Model | SPW482 |
| Manufacturer | Yokogawa Electric Corporation |
| Product Type | Power Supply Module |
| System Compatibility | CENTUM VP, CENTUM CS 3000 |
| Input Voltage Range | 100–120 VAC / 200–240 VAC (auto-switching), 50/60 Hz |
| Output Voltage | 24 VDC ±1% |
| Output Current | Up to 10 A |
| Power Capacity | 240 W nominal |
| Redundancy Support | Yes (supports dual-redundant operation) |
| Efficiency | ≥85% |
| Protection Features | Over-voltage, Over-current, Short-circuit, Thermal shutdown |
| Status Indicators | LED indicators for status, alarm, and communication |
| Cooling Method | Natural convection |
| Mounting Type | Mounted on baseplate inside FCS cabinet |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -20°C to +70°C |
| Relative Humidity | 10–90% RH, non-condensing |
| Certifications | CE, CSA, UL, ATEX, IECEx, RoHS |
| Dimensions (W × H × D) | 44.45 x 264.2 x 186 mm |
| Weight | 1.4 kg |
Product Applications
The SPW482 Power Supply Module is used in environments where stable, redundant, and uninterrupted power is essential for process control systems. Its robust capabilities make it ideal for powering FCS components across a wide range of industries:
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Oil & Gas – Provides reliable power for distributed control nodes in refineries and pipelines.
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Chemical Processing – Supports continuous processing units and safety systems.
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Pharmaceutical Manufacturing – Ensures power continuity for GMP-compliant automation.
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Power Generation – Powers turbine and auxiliary control systems within distributed networks.
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Water Treatment Facilities – Supports remote telemetry and I/O infrastructure.
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Food & Beverage – Used in packaging and process lines for stable control operations.
Its redundant capability is especially valuable in 24/7 operations, ensuring no power loss or interruptions to critical DCS components.
Product Advantages
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Redundancy Ready: Easily integrated into dual redundant configurations for high system availability.
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Stabilized Output: Delivers regulated 24 VDC with high accuracy, ensuring consistent device performance.
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Compact Design: Fits neatly into FCS cabinets without compromising space or accessibility.
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Intelligent Diagnostics: Built-in LED indicators and fault detection simplify troubleshooting and maintenance.
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Energy Efficient: High power conversion efficiency lowers operating temperatures and energy use.
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Long Lifecycle: Designed for extended operation with high MTBF (mean time between failures).
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Broad Voltage Support: Supports global input voltage standards with auto-switching capability.
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Plug-and-Play Integration: Compatible with standard Yokogawa backplanes and chassis systems.
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Environmental Robustness: Operates reliably in industrial temperature and humidity ranges.
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Global Compliance: Certified to international safety and environmental standards.
Frequently Asked Questions (FAQ)
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What is the primary function of the SPW482 module?
It supplies 24V DC power to Yokogawa control systems, including processors and I/O modules. -
Can the SPW482 be used in a redundant configuration?
Yes, two SPW482 modules can be paired for redundancy, ensuring continuous power even if one fails. -
Is the module hot-swappable?
No, the SPW482 should be powered down before replacement unless installed in a redundant setup. -
What happens if the power supply fails during operation?
In a redundant configuration, the second SPW482 takes over automatically without system disruption. -
Does it provide any overload protection?
Yes, it features over-current, over-voltage, short-circuit, and thermal protection mechanisms. -
Can the SPW482 handle varying AC input voltages?
Absolutely. It auto-switches between 100–120V and 200–240V AC input ranges. -
How do I know if the module is functioning properly?
LED indicators on the module show status, alarms, and communication activity in real time. -
Where should the SPW482 be installed?
It mounts on a dedicated baseplate inside a Yokogawa control system cabinet. -
Is it compatible with older CENTUM systems?
Yes, it supports CENTUM CS 3000 and CENTUM VP architectures. -
How often should this module be maintained?
Regular visual inspection and function testing every 12 months is recommended.
Related or Same-Series Yokogawa Models
| Model | Description | System Compatibility | Weight |
|---|---|---|---|
| SPW481 | Power Supply Module (Predecessor) | CENTUM CS 3000, VP | 1.5 kg |
| SPW484 | Extended Power Output Version | High-capacity systems | 1.7 kg |
| PW482 | Alternate Power Module | FCS and I/O rack systems | 1.6 kg |
| SCP461 | CPU Processor Module | CENTUM VP / CS 3000 | 1.2 kg |
| SEC402 | ESB Bus Coupler Module | FCS to I/O Bus Interface | 0.9 kg |
| FIO100 | Field I/O Node Controller | Remote Distributed I/O | 2.0 kg |
Popular Yokogawa Models Across the Brand
| Model | Description | Application Area | Weight |
|---|---|---|---|
| CP451 | Vnet/IP Communication Processor | Network Control Layer | 0.9 kg |
| AAI543 | Analog Input Module (32ch, 1–5V) | Signal Acquisition | 0.75 kg |
| SAI143 | 16ch Analog Input Module (4–20mA) | Field Measurement | 0.6 kg |
| ALR121 | Alarm Relay Output Module | Alarm Management | 0.7 kg |
| FCS1000 | Compact Field Control Station | Mid-size DCS Control | 2.5 kg |
| NTP100 | Network Time Protocol Synchronizer | System Time Coordination | 0.8 kg |
