Description
Product Description
Overview
The KJ3002X1-BE1 from Emerson is a high-performance LocalBus Expansion Port, also called a Right-Hand Extender, designed for DeltaV S-series Distributed Control Systems (DCS). It extends both power and communication signals between I/O carriers, allowing seamless horizontal scaling of your I/O architecture. The module ensures signal integrity while distributing LocalBus power to connected modules across multiple carriers.
Key Features
Reliable Signal Continuity
The module maintains high-speed LocalBus communication between carriers, minimizing signal reflection and electromagnetic interference. It ensures I/O modules on extended carriers interact with the controller as if directly connected to the primary carrier.
Power Distribution Support
The KJ3002X1-BE1 passes 12 VDC LocalBus power to downstream carriers. When combined with Emerson’s system power supplies, it guarantees consistent voltage and current to all connected I/O modules.
Plug-and-Play Installation
Engineered for tool-less installation, this module attaches to the rightmost slot of a carrier and links to the next carrier using a high-density ribbon cable. The rotary keying system ensures proper alignment and compatibility between modules and terminal blocks.
Industrial Durability
The module is conformally coated for resistance to moisture and corrosive airborne chemicals (ISA-S71.04 Class G3). With passive, low-complexity circuitry, it achieves a high MTBF and performs reliably in demanding environments.
Technical Specifications
| Feature |
Specification |
| Module Type |
LocalBus Expansion (Right-Hand Extender) |
| Input Power |
Derived from LocalBus (12 VDC) |
| Current Draw |
Minimal (passive circuitry) |
| Mounting |
Right-hand side of DeltaV S-series I/O Carrier |
| Operating Temperature |
0°C to 60°C |
| Storage Temperature |
-40°C to 85°C |
| Shock Resistance |
10 g, half-sine, 11 ms |
| Vibration Resistance |
1 mm peak-to-peak 5–16 Hz; 0.5 g 16–150 Hz |
| Airborne Contaminants |
ISA-S71.04 Class G3 |
| Humidity |
5–95% non-condensing |
| IP Rating |
IP20 |
| Terminal Block Key Position |
A4 |
Installation and Usage Notes
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Field power must be removed before connecting or disconnecting modules, except when using a certified dual DC/DC power supply (KJ1501X1-BC1) under strict inductance limits.
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Only one module may be removed at a time while system power is energized.
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Terminal block fuses must not be removed under energized conditions.
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The module contains no user-serviceable parts, and calibration is not required.
Applications
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Scaling DeltaV S-series I/O carriers across large cabinets.
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Industrial control systems requiring high signal integrity and reliable power distribution.
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Integration in DCS systems for oil & gas, chemical, pharmaceutical, and power generation sectors.
FAQ
Q: Can the module be removed while the system is powered?
A: Only one module at a time can be removed when using a certified dual DC/DC supply and meeting wiring inductance specifications.
Q: Does the KJ3002X1-BE1 require calibration?
A: No calibration is needed. The module contains no serviceable parts.
Q: What is the key benefit of using this expansion port?
A: It extends LocalBus signals and power to additional I/O carriers while preserving communication integrity and minimizing EMI.
