Description
Product Description
Overview
The KJ4001X1-HC1 by Emerson is a LocalBus Left Hand Extender designed for DeltaV™ S-Series Distributed Control Systems. It enables seamless I/O expansion across multiple horizontal carriers by receiving LocalBus signals from a Right Hand Extender, maintaining high-speed communication and system reliability. Installed in the left-most slot of an I/O carrier, it supports up to eight additional I/O modules per extended carrier.
Technical Features
High-Bandwidth Signal Extension
The module maintains transparent communication across extended LocalBus connections. It ensures that the DeltaV controller can interface with additional I/O modules without latency or signal degradation. The extender supports LocalBus power delivery of 12 V DC at up to 8 A, sufficient for all connected modules.
Industrial-Grade Reliability
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Hazardous area certification: ATEX and FM (Class 1, Div 2 / Zone 2)
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Rugged connector interface ensures secure, vibration-resistant connections
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Conformal coating (G3) protects against airborne contaminants and corrosive gases
Integrated Diagnostics
Environmental Resilience
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Operating temperature range: -40°C to 70°C (-40°F to 158°F)
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Shock: 10g half-sine wave, 11 ms
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Vibration: 1 mm peak-to-peak from 2 to 13.2 Hz, 0.7g from 13.2 to 150 Hz
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Humidity: 5–95% non-condensing
Applications
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Multi-carrier I/O expansion in process control systems
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Field-mounted enclosures in harsh industrial environments
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Systems requiring high-integrity, high-speed LocalBus communication
Technical Specifications
| Feature |
Specification |
| Model |
KJ4001X1-HC1 |
| Module Type |
LocalBus Left Hand Extender |
| Input Power |
12 V DC via LocalBus cable |
| Current Capacity |
8 A |
| Mounting |
Left-most slot of DeltaV S-Series I/O carrier |
| Operating Temperature |
-40 to 70 °C |
| Shock |
10 g half-sine, 11 ms |
| Vibration |
1 mm peak-to-peak (2–13.2 Hz), 0.7 g (13.2–150 Hz) |
| Conformal Coating |
ISA-S71.04-1985 Class G3 |
| Maximum LocalBus Length |
6.5 m including all carriers and cables |
| Safety Certifications |
ATEX, FM (Class 1, Div 2 / Zone 2) |
Installation & Maintenance
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Always de-energize power before insertion or removal
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Connect only to a compatible Right Hand Extender using standard DeltaV LocalBus cable
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No user-serviceable parts; calibration not required
FAQ
Q: Can this module be hot-swapped?
A: No. Power must be off before installation or removal.
Q: How many I/O modules can it support per carrier?
A: Up to 8 modules on the extended carrier.
Q: Is it compatible with other DeltaV series?
A: It is designed for S-Series carriers only.
Q: What is the maximum LocalBus cable length?
A: The total length including all carriers and extenders must not exceed 6.5 meters.
