Overview
Configured for LocalBus extension and carrier power distribution in Emerson DeltaV S-Series systems, the Emerson KJ4001X1-NB1 (KJ4001X1-NB1 1-Wide Left-Side I/O Carrier Extender) provides direct electrical connection between I/O carrier sections.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | KJ4001X1-NB1 |
| Brand | Emerson |
| Product Series | DeltaV S-Series |
| Product Type | 1-Wide Left-Side I/O Carrier Extender |
| Origin | USA |
| Weight | Approx. 0.18 kg |
| Dimensions | Approx. 16.7 cm x 4.7 cm x 6.5 cm |
| Operating Temp | -40 deg C to +70 deg C |
| Relative Humidity | 5% to 95% non-condensing |
| Power Consumption | LocalBus power: 12 VDC at 8 A; Field power input: up to 30 VDC at 6.5 A |
| LocalBus Function | Extends DeltaV I/O carrier LocalBus communication and power distribution |
| Field Power Configuration | Supports dual DC/DC configuration |
| Airborne Contaminants | ISA-S71.04-1985 Class G3 |
| Shock Resistance | 10 g half-sine wave for 11 ms |
| Vibration Resistance | 1 mm peak-to-peak from 2 to 13.2 Hz; 0.7 g from 13.2 to 150 Hz |
| Hazardous Area Certification | ATEX, IECEx, Class I Div 2, Zone 2 approvals |
DeltaV Process Control Interface Characteristics
The KJ4001X1-NB1 operates as a carrier-level expansion component within the DeltaV S-Series I/O architecture. It transfers LocalBus communication signals and distributes carrier power between connected I/O carrier assemblies. Therefore, the extender maintains the electrical continuity required for expanded I/O installation configurations.
Emerson DeltaV hardware supports process instrumentation interfaces, including 4-20 mA HART loop protocol, FOUNDATION Fieldbus and Profibus PA connectivity through compatible I/O modules. Additionally, DeltaV I/O modules implement channel-to-channel isolation and signal conditioning functions according to individual module designs.
The carrier extender itself does not process field signals. Instead, it provides the physical interconnection path required by DeltaV I/O carrier assemblies.
Frequently Asked Questions
Q: What function does the KJ4001X1-NB1 perform in a DeltaV system?
A: The KJ4001X1-NB1 extends LocalBus communication and power distribution between DeltaV S-Series I/O carrier sections.
Q: Does the KJ4001X1-NB1 provide analog or digital field signal conversion?
A: No. The module does not perform signal measurement or conversion. It provides carrier expansion and electrical interconnection functions.
Q: Can the KJ4001X1-NB1 operate in hazardous environments?
A: Yes. The module supports hazardous area installation requirements with ATEX, IECEx, Class I Div 2, and Zone 2 certifications when installed according to applicable system guidelines.
Field Installation Guidelines
- Install the KJ4001X1-NB1 according to Emerson DeltaV carrier assembly procedures and approved cabinet layouts.
- Verify LocalBus connector alignment before applying system power to prevent mechanical damage.
- Maintain proper separation between power wiring and field signal wiring to reduce electrical interference.
- Connect cabinet grounding and shielding systems according to site electrical standards.
- Confirm carrier power loading before expanding additional I/O assemblies.
- Inspect connectors and mounting surfaces for contamination before installation in industrial environments.
- Use approved enclosure protection methods when installing in hazardous area locations.
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