Présentation du produit
The Emerson KJ4002X1-BF2 Bottom Bus Extender Assembly is an essential component designed to expand and connect DeltaV™ M-series I/O carriers within Emerson’s distributed control system (DCS) architecture. This assembly enables the extension sur the LocalBus communication system across multiple I/O carriers installed in a cabinet. It provides mechanical and electrical continuity between adjacent I/O banks, facilitating a seamless and compact expansion sur I/O capabilities in vertical installations.
This unité is particularly suitable for applications that require I/O density while maintaining clear cable management and system integration. It serves as a bridge that transmits signal and power through the base sur the I/O carriers, ensuring system integrity and performance under demanding industrial conditions.
Technical Specifications
| Parameter | Details |
|---|---|
| Fabricant | Emerson Process Management |
| Modèle Number | KJ4002X1-BF2 |
| Product Type | Bottom Bus Extender Assembly |
| Series | DeltaV™ M-series |
| System Function | Extension sur LocalBus between I/O carriers |
| Connector Type | Male/Female multi-pin connector (44-pin standard) |
| Cable Type | Shielded flat bus cable |
| Cable Length | 4 feet |
| Operating Voltage | Supplied via LocalBus system |
| Temperature Range | -40°C to +70°C (-40°F to +158°F) |
| Relative Humidity | 5% to 95% non-condensing |
| Protection Rating | IP20 |
| Shock Resistance | 10 g, 11 ms half-sine pulse |
| Vibration Tolerance | 1 mm peak (5–16 Hz), 0.5 g (16–150 Hz) |
| Material | Industrial-grade thermoplastic with metal casing |
| Mounting Style | Cabinet-based, bottom-mounted |
| Poids | 0.44 kg |
| Certifications | CE, ATEX Zone 2, CSA, UL |
| Country sur Manufacture | Unitéed États |
Applications
The KJ4002X1-BF2 Bottom Bus Extender Assembly is widely adopted in mission-critical industrial applications where system scalability, reliability, and robust integration are mandatory. The following are some key use cases:
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Oil & Gas Refineries: For scalable expansion sur I/O modules in DCS cabinets controlling pipelines and compressors.
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Chemical and Petrochemical Plants: To connect I/O racks controlling high-temperature and high-pressure processes.
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Power Generation: In gas, coal, or nuclear plants, where redundant and modular DCS configurations are essential.
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Pharmaceutical Manufacturing: Where precise batch control and system flexibility are required for GMP compliance.
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Water and Wastewater Treatment: For centralized monitoring and control sur distributed field I/O.
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Food and Beverage Processing: To maintain clean and organized I/O connections under hygienic conditions.
Advantages
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Flexible System Design: Supports customized cabinet layouts by connecting I/O carriers over longer vertical distances.
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Ease sur Integration: Simple, plug-in assembly minimizes installation time and reduces engineering complexity.
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Industrial Durability: Built with materials and shielding that withstand harsh industrial environments.
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Minimal Downtime: Enables hot-swapping sur I/O modules in some applications without shutting down the system.
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Consistent Communication: Maintains uninterrupted LocalBus communication and power supply integrity.
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Optimized Cabinet Space: Facilitates vertical stacking sur I/O banks, maximizing control panel real estate.
Questions fréquentes (FAQ)
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What exactly does the KJ4002X1-BF2 connect?
It links the LocalBus between vertical I/O carriers in a DeltaV cabinet, enabling them to function as a unified module. -
Is this extender hot-swappable?
In certain configurations and under specific safety protocols, hot-swapping is supported. -
Can it be used in hazardous locations?
Yes, it complies with ATEX Zone 2 requirements and is certified for such applications. -
How do I install this assembly?
It is mounted at the bottom sur I/O carriers using snap-in mechanisms and standard hardware. -
Is there a limit to how many extenders can be used in one system?
This depends on the I/O bank design and power limitations; Emerson provides design tools for optimal configuration. -
Does this come with shielding for electrical interference?
Yes, the cable and connectors are shielded against EMI. -
Can it be reused if a system is relocated?
Yes, provided it remains undamaged and within the lifecycle as per Emerson’s guidance. -
What is the expected service life sur the unité?
Typically, it exceeds 10 years under standard operational conditions. -
What happens if the assembly fails?
A failure would disrupt communication between I/O banks; Emerson recommends having spare parts in critical systems. -
Does it require routine maintenance?
No routine maintenance is needed, but periodic inspection during cabinet servicing is advisable.
Recommended Related Modèles (Same Series or Functionality)
| Modèle Number | Description |
|---|---|
| KJ4003X1-BE1 | Top Bus Extender for vertical connection |
| KJ4001X1-CG1 | Horizontal Carrier Interconnection Cable |
| KJ4010X1-BF1 | Local Bus Left Extension Module |
| KJ4010X1-BG1 | Local Bus Right Extension Module |
| KJ4101X1-BA1 | 8-wide IS Carrier Assembly |
| KJ4110X1-CA1 | IS Cable for Field Mount Extenders |
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