DOCA0140EN-03

NSX Cord

Introduction

The NSX cord connects a circuit breaker to the communication network.

The NSX cord can be used:

  • By itself for communicating measurements and settings (only with MicroLogic 5, 6, and 7 trip units)

  • Or with a BSCM module:

    • For communicating measurements and settings (only with MicroLogic 5, 6, and 7 trip units)

    • For communicating states (with standard and advanced trip units)

NOTE: The NSX cord cannot be installed in a ComPact NSX400K circuit breaker.

For more information about integrating ComPact NSX circuit breaker communication functions, refer to:

  • DOCA0093EN, ULP System (IEC Standard) - User Guide

  • DOCA0091EN, ComPact NSX - Modbus Communication Guide

Description

The NSX cord consists of a junction box, a cable equipped with an RJ45 connector, and a cable equipped with a screw terminal block.

No.

Data medium

Data transmitted

Comments

A

NSX cord microswitch

State of SD contact

The NSX cord goes into the SD slot instead of the auxiliary contact.

B

Cable equipped with an RJ45 connector for connection to a ULP module.

Communication network

Three cable lengths are available: 0.3 m (9.84 ft), 1.3 m (4.27 ft), and 3 m (14.7 ft).

C

Internal link to the MicroLogic 5, 6, or 7 trip unit or the BSCM module

Communication network

With the BSCM module, the NSX cord also transmits the circuit breaker states.

The NSX cord also provides the 24 Vdc power supply:

  • For the MicroLogic 5, 6, or 7 trip unit (without BSCM module)

  • For the BSCM module (when this module is installed)

Installation

The slots used to install the NSX cord depend on the circuit breaker type.

NSX cord used alone

NSX cord and BSCM module

ComPact NSX100-250

ComPact NSX400-630

ComPact NSX100-250

ComPact NSX400-630

A NSX cord

B BSCM module

The NSX cord cannot be installed at the same time as the SD contact.

The NSX cord can be installed on site.

For more information about installation, consult the instruction sheet on the Schneider Electric website: GHD16047AA ComPact NSX100–630 – NSX Cord.

Communication with the NSX Cord

The NSX cord connects to the following ULP modules:

  • IFM or IFE communication interface

  • FDM121 display

  • IO module

The figure below illustrates the connections from the NSX cord to the IFM Modbus-SL interface

Example 1: Connection of the IFM interface to the MicroLogic 5, 6, or 7 trip unit Example 2: Connection of the IFM interface to the BSCM module Example 3: Connection of the IFM interface to the BSCM module and the MicroLogic 5, 6, or 7 trip unit

A IFM Modbus-SL interface for one circuit breaker

B NSX cord

C MicroLogic 5, 6, or 7 trip unit

D BSCM module

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