Description
Product Description
Overview
The Emerson KJ2101X1-BA1 is a Horizontal 2-Slot Controller Carrier designed for DeltaV Distributed Control Systems (DCS). It provides a robust and reliable mounting and electrical interface for controllers and power supplies. The carrier ensures seamless communication between DeltaV controllers and I/O subsystems, while simplifying power distribution and cabinet wiring. Its compact, DIN-rail mountable design supports both single and redundant controller configurations.
Key Technical Features
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Controller Redundancy Support: Enables failover operation with two controllers installed, maintaining continuous process control during a failure.
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Integrated Power Management: Distributes 24 VDC from the power supply to the controller and I/O bus, reducing cabling complexity.
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High Signal Integrity: Backplane design minimizes electrical noise, ensuring stable communication between controller and modules.
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Hot-Swap Capability: Supports insertion and removal of controllers or power supplies without shutting down the system, following proper safety procedures.
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Industrial Reliability: Optional G3 conformal coating protects against corrosion from airborne chemical contaminants.
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Passive Backplane Design: No active electronics on the carrier, providing extremely high MTBF.
Technical Specifications
| Feature |
Specification |
| Slot Capacity |
2 slots (Controller / Power Supply or dual controllers for redundancy) |
| Mounting |
Horizontal DIN-rail (T-type) |
| Input Power |
24 VDC nominal |
| Local Bus Current |
Up to 8 A per carrier depending on load configuration |
| Operating Temperature |
-40°C to 70°C (-40°F to 158°F) |
| Environmental Rating |
ISA-S71.04-1985, Airborne Contaminants Class G3 |
| Physical Dimensions |
Width: 2 slots (~3.5 in), Height: 3.5 in, Depth: 6 in (approx.) |
| Weight |
~0.5 kg |
Primary Benefits
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Space-Efficient Layout: Compact horizontal design for optimized cabinet use.
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Error Reduction: Keyed slots and clear labeling prevent incorrect module installation.
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Expandable System Architecture: Easily integrates with additional carriers and controllers via local bus cabling.
Applications
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Centralized control in process plants
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Redundant controller configurations for critical operations
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Integration with DeltaV MD and MQ series controllers
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Harsh industrial environments requiring corrosion-resistant backplanes
FAQ
Q: Can the KJ2101X1-BA1 support two controllers simultaneously?
A: Yes, it supports dual-controller setups for redundancy, allowing seamless failover operation.
Q: Is hot-swapping safe on this carrier?
A: Yes, controllers or power supplies can be replaced without system shutdown, provided standard safety procedures are followed.
Q: What is the maximum local bus current supported?
A: Up to 8 A, depending on the configuration of installed modules.
Q: Are there similar carriers for different slot configurations?
A: Yes, Emerson offers 1-wide and 3-wide carriers for various system sizes and redundancy requirements.
