Description
Product Overview
The Yokogawa NFBU200-S05 serves as the physical base of a modular STARDOM controller assembly. Rather than executing the control program independently, it provides the structure and internal connections needed to install compatible controller and I/O components. In a plant environment, the assembled FCN-500 controller can support distributed control, equipment monitoring, and data-acquisition tasks. The base module’s compatibility with the other installed components is therefore central to system commissioning and maintenance.
The NFBU200-S05 is listed with support for duplex configurations. Depending on the system design, redundancy may involve paired CPUs, power supplies, internal buses, or communication paths. Redundancy should not be assumed merely because the base module is installed: the correct compatible modules, configuration, and system engineering are also required. Before replacing a base assembly, compare the installed hardware arrangement with the relevant Yokogawa documentation, especially if the controller is part of a continuously operating process.
Installation and environmental details also require attention. Published listings specify natural-convection cooling, IP20 protection, and maximum self-consumption of 0.4 A at 5 VDC. The 0.4 A figure describes the base module’s own consumption as listed, not the complete power requirement of the controller and its installed modules. The enclosure must provide appropriate protection against dust, moisture, and accidental contact. Confirm the mounting hardware, grounding provisions, module arrangement, and temperature limits against the manufacturer’s installation documentation before commissioning.
Product Introduction
The NFBU200-S05 is intended for modular control-system installations based on the Yokogawa STARDOM FCN-500 platform. Its role is to accommodate compatible controller and I/O hardware while supporting the internal connections required for the configured system.
For maintenance teams, the key selection criteria are platform compatibility, mounting format, installed module count, and whether the application uses a duplex arrangement. When replacing a unit, record the existing assembly layout and verify the part number before removing connected hardware.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Yokogawa Electric Corporation |
| Model | NFBU200-S05 |
| Product type | Controller base module |
| System family | STARDOM |
| Compatible platform | FCN-500 Field Control Node, per published listings |
| Primary function | Base structure and internal connections for modular controller hardware |
| CPU installation | Supports compatible FCN-500 controller modules |
| Power-supply arrangement | Supports compatible power-supply modules; duplexing depends on configuration |
| I/O expansion | Depends on CPU, base, extension units, and system configuration |
| Maximum self-consumption | 0.4 A at 5 VDC, as published |
| Cooling | Natural air cooling |
| Protection rating | IP20, as listed |
| Weight | Approximately 1.9 kg |
| Mounting | 19-inch rack or DIN rail, subject to installation arrangement |
| Dimensions | Published listings vary by mounting configuration; verify the applicable mechanical drawing |
| Operating temperature | Supplier listings report −20°C to +60°C; verify the official specification for the installed configuration |
| Storage temperature | Supplier listings report −30°C to +70°C; verify the applicable manual |
| Redundancy | Duplex configuration support, subject to compatible system components |
| Installation requirements | Confirm grounding, clearance, mounting hardware, and module compatibility |
| Condition | Confirm actual condition with supplier |
The figures above are based on available product listings. Slot capacity, dimensions, and environmental ratings should be checked against the exact hardware and mounting configuration rather than inferred from the model number alone.
NFBU200-S05
Related Products
These products and components are associated with modular STARDOM control installations. They are not direct substitutes for the NFBU200-S05.
- FCN-500 Field Control Node — Controller platform associated with the NFBU200-S05 base assembly.
- Compatible FCN-500 CPU module — Executes the control application within the assembled controller; confirm the specific CPU model and hardware revision.
- Compatible STARDOM power-supply module — Provides operating power to the configured controller assembly; verify redundancy and electrical requirements.
- Compatible STARDOM I/O modules — Provide analog, digital, or communication interfaces according to the application.
- mounting hardware — Rack or DIN-rail installation accessories may differ by installation arrangement; verify the correct mounting drawing and hardware.
Frequently Asked Questions
Q1: What is the Yokogawa ?
It is a base module associated with Yokogawa’s STARDOM modular controller platform. It provides the base structure and internal connections for compatible controller and I/O components.
Q2: Is the a CPU module?
No. It is the base assembly, not the processor itself. A compatible controller module and the other required components must be installed to form a working controller system.
Q3: Does the support redundancy?
Published listings identify support for duplex configurations. Actual redundancy depends on compatible CPUs, power supplies, communications, and system configuration. Confirm the approved architecture before making changes.
Q4: What is its power consumption?
Available specifications list maximum self-consumption of 0.4 A at 5 VDC. This is not the total power requirement for the complete controller and all installed modules.
Q5: Can it be installed on a DIN rail?
Supplier documentation lists both 19-inch rack and DIN-rail mounting arrangements. Check the applicable mechanical drawing and mounting accessories before installation.
Q6: Can the be replaced while the controller is operating?
Do not assume that the base module can be replaced online. Its removal may affect the entire controller assembly. Follow Yokogawa’s documented maintenance procedure and the plant’s shutdown or redundancy-management requirements.
Q7: What should procurement verify before purchasing?
Confirm the full model number, compatible configuration, mounting arrangement, physical condition, and availability of inspection or test records. For a redundant controller, verify the replacement against the existing assembly and approved system documentation before installation.
