Product Overview

The ABB Bailey NKAS01-30 is an INFI 90 analog module termination cable used to establish the electrical connection between an analog I/O termination arrangement and the associated INFI 90 control system hardware. It belongs to the termination and interconnection hardware used in ABB Bailey INFI 90 process control installations.

Within an INFI 90 cabinet, field wiring is typically brought to a termination arrangement before being connected to the electronic I/O hardware. The NKAS01-30 carries the corresponding signal connections between these two sections, keeping field termination organized while providing the required path to the analog I/O module.

The 30-foot configuration is suited to installations where the physical distance between the termination point and I/O hardware requires a longer interconnection. It is useful for maintenance, replacement, and refurbishment work on established ABB Bailey INFI 90 systems where the existing termination architecture needs to be retained.

Technical Specifications

Product Features

• Designed for ABB Bailey INFI 90 analog module termination applications.
• Provides the physical interconnection between termination hardware and analog I/O components.
• Supports organized analog signal routing within an INFI 90 control architecture.
• Suitable for existing INFI 90 systems where the original termination arrangement is being maintained.
• Provides a 30-foot cable configuration for installations requiring extended routing.
• Useful for replacement of existing termination cables during system maintenance.
• Suitable for retrofit and service work on ABB Bailey INFI 90 installations.
• Functions as a passive electrical interconnection rather than an active signal-processing device.

Working Principle

The NKAS01-30 functions as a passive electrical path within the INFI 90 analog I/O signal chain. It carries the corresponding connections between the termination assembly and the associated analog I/O module without independently processing the analog signal.

For analog input applications, field instruments send their process signals to the termination arrangement. The signals then travel through the NKAS01-30 to the analog I/O module, where the INFI 90 system processes the incoming information.

Field devices → Termination assembly → NKAS01-30 → Analog I/O module → INFI 90 control system

For analog output applications, the signal path operates in the reverse direction. The control system generates the required analog command, which passes through the I/O module and termination arrangement before reaching the field device.

Role in an INFI 90 I/O Control Architecture

The NKAS01-30 occupies the interconnection layer between the field termination hardware and analog I/O interface. It does not execute control logic or perform analog signal conversion; instead, it maintains the electrical connection required for the INFI 90 I/O architecture.

Industrial Applications

Installation and Maintenance

1. Confirm that the NKAS01-30 matches the existing INFI 90 analog termination arrangement before installation.
2. Verify that the cabinet routing can accommodate the required cable length without excessive slack or tension.
3. De-energize or isolate the relevant I/O section according to the plant maintenance procedure.
4. Identify the termination and analog module interfaces before disconnecting the existing cable.
5. Inspect connectors for bent pins, contamination, corrosion, or mechanical damage.
6. Route the cable without excessive bending, pulling, or mechanical stress.
7. Keep the cable routing consistent with the established cabinet wiring arrangement.
8. Ensure both connectors are fully seated and mechanically secured.
9. Verify the completed connections against the applicable system documentation before energizing the I/O section.
10. Check analog I/O channels for unexpected signal abnormalities after replacement.
11. Inspect cable condition and connector integrity during scheduled cabinet maintenance.
12. Record the installed model and associated termination arrangement for future INFI 90 service work.

Related Components

Recommended Related Models

Key Advantages

• Provides a dedicated interconnection for INFI 90 analog module termination.
• Maintains the established ABB Bailey I/O wiring architecture.
• Supports organized analog signal routing between termination and I/O hardware.
• Provides a 30-foot cable configuration for applicable cabinet layouts.
• Suitable for maintenance and replacement of existing INFI 90 installations.
• Useful for retrofit and service applications where the original system wiring must be preserved.

Technical FAQs

What is the purpose of the ABB Bailey NKAS01-30?

The NKAS01-30 provides the electrical interconnection between an INFI 90 analog termination arrangement and the associated analog I/O module. It serves as a passive connection component within the I/O signal path.

Is the NKAS01-30 an analog I/O module?

No. The NKAS01-30 is a termination cable. The associated INFI 90 analog I/O hardware performs the actual signal processing.

What should be checked when replacing an NKAS01-30?

The existing termination arrangement, mating interfaces, analog I/O module, cable routing, and required cable length should be verified before replacement. Correct channel connections should also be confirmed after installation.

What is the difference between NKAS01-30 and shorter NKAS01 cables?

The NKAS01 family includes different cable-length configurations for different cabinet and system layouts. The NKAS01-30 uses a 30-foot configuration, while shorter variants are intended for installations with less distance between the termination and I/O hardware. The replacement should match the physical routing requirements of the existing system.