Overview
The Emerson KJ4001X1-HC1, also cataloged as the KJ4001X1-HC1 LocalBus Left Extender, provides physical LocalBus extension between DeltaV M-Series I/O carriers and extender cables within DeltaV scalable process system hardware.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | KJ4001X1-HC1 |
| Brand | Emerson |
| Operating Temp | -40 deg C to +70 deg C |
| Power Consumption | Local Bus Power: 12 VDC at 8 A |
| Product Type | LocalBus Extender |
| Hazardous Area Certification | II 3G Ex ec IIC Gc |
| Hazardous Area Approvals | FM16ATEX0056U, FM21UKEX0017U, FM16US0076U |
| North American Classification | CL. I Div. 2 GP. A,B,C,D |
| Relative Humidity | 5 to 95% Non-Condensing |
| 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 |
| Airborne Contaminants | ISA-S71.04-1985 Airborne Contaminants Class G3 |
| Maximum LocalBus Extension Length | Combined I/O carriers and LocalBus Extenders must not exceed 6.5 m |
LocalBus Extension and Electrical Interface
The KJ4001X1-HC1 extends DeltaV LocalBus connections between carrier assemblies and remote enclosure configurations. It transfers LocalBus communication and power through approved extender cables while maintaining the specified 12 VDC bus supply requirement.
Furthermore, the module supports hazardous area installation under Ex ec protection requirements. The installer must follow DeltaV Zone 2 installation procedures and use approved enclosure and cable routing methods.
The module does not provide user-adjustable parameters or calibration functions. Therefore, system configuration relies on DeltaV hardware installation settings rather than field calibration.
Frequently Asked Questions
Q: Can the KJ4001X1-HC1 be inserted or removed while system power is active?
A: No. System power must be de-energized before disconnecting carriers or LocalBus Extender cables. The unit does not support energized removal or insertion.
Q: Does the KJ4001X1-HC1 require periodic calibration?
A: No. The unit contains no calibration functions and requires no calibration adjustment during operation.
Q: What installation limitation applies to LocalBus Extender combinations?
A: The total combination of I/O carriers and LocalBus Extenders must not exceed 6.5 m in length. Interconnecting cables between enclosures must be installed in conduit.
Field Installation Guidelines
- Install the KJ4001X1-HC1 according to DeltaV M-Series hardware installation requirements and Zone 2 hazardous area instructions.
- De-energize system power before removing or inserting the module or disconnecting LocalBus extender connections.
- Route interconnecting cables between separate enclosures through conduit to maintain installation compliance.
- Verify hazardous area certification markings before installation in classified locations.
- Maintain proper cable routing practices to reduce electrical interference and prevent mechanical stress on LocalBus connections.
- Do not disassemble the module because it contains no user-serviceable components.
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