BSCM Breaker Status Control Module

Introduction

The BSCM Breaker Status Control Module can be used to send the following data via the communication network:

Circuit breaker states from OF, SD, and SDE auxiliary contacts

Control instructions for the communicating motor mechanism (if present): opening, closing, and resetting

Information to assist the operator: storage of the last 10 events

Use the BSCM module with ComPact NSX circuit breakers equipped with thermal-magnetic or MicroLogic electronic trip units and with all ComPact NSX switch-disconnectors.

NOTE: The BSCM module cannot be installed in a ComPact NSX400K circuit breaker.

Installation of the BSCM module requires:

The NSX cord
Pre-installation of the communicating motor mechanism (if present)

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

DOCA0093EN, ULP System (IEC Standard) – ULP (Universal Logic Plug) System – User Guide
DOCA0091EN, ComPact NSX - Modbus Communication Guide

Description

Item	Data medium	Data transmitted	Comments
A	BSCM module microswitches	State of OF and SDE contacts	The BSCM module takes the place of the auxiliary contacts in the OF and SDE slots.
B	Connector for the NSX cord	Communication network and state of SD contact through the microswitch on the NSX cord	The NSX cord goes in the SD slot instead of the auxiliary contact.
C	Connector for the MicroLogic 5, 6, or 7 trip units	Communication network	Only with MicroLogic 5, 6, or 7 trip units
D	Connector for the communicating motor mechanism	Controlling the communicating motor mechanism Status of the communicating motor mechanism	Use the connector supplied with the communicating motor mechanism.

Installing the BSCM Module

The slots used to install the BSCM module depend on the circuit breaker type.

ComPact NSX100-250	ComPact NSX400-630

A BSCM module B NSX cord

The BSCM module cannot be installed at the same time as an OF contact or the SDE contact.

The BSCM module can be installed on site.

For more information about installation, consult the instruction sheet on the Schneider Electric website: GHD16046AA ComPact NSX100–630 – BSCM.

Connecting the BSCM Module

To install the BSCM module:

Plug in the module.
Connect the 4 connectors.

Setting Up the BSCM Module

Setting up the BSCM module on the communication network requires no addressing.

LED Indication on BSCM Module

The LED on the BSCM module is only visible when the front of the case is removed. Use the LED indication on the BSCM module to confirm that the BSCM module is working during commissioning or maintenance operations.

ULP LED	Mode	Action
	Nominal	None
	Conflict	Remove extra ULP module
	Degraded	Replace BSCM module at the next maintenance operation
	Test	None
	Non-critical firmware discrepancy	Upgrade firmware at the next maintenance operation
	Non-critical hardware discrepancy	Replace BSCM module at the next maintenance operation
	Configuration discrepancy	Install missing features
	Critical firmware discrepancy	Use EcoStruxure Power Commission software to check the firmware and hardware compatibility and follow the recommended actions
	Critical hardware discrepancy
	Stop	Replace BSCM module
	Power off	Check power supply

Data Provided by the BSCM Module

Configuration	Information	Can be reset
All circuit breakers with BSCM module	Count of the total number of times the circuit breaker opens and closes (count of OF contact operations). This counter (totalizer) cannot be reset.	No
	Count of the total number of times the circuit breaker opens and closes (count of OF contact operations)⁽¹⁾	Yes
	Maximum number of times the circuit breaker can open and close⁽²⁾	Yes
	Count of the number of fault trips by the circuit breaker (count of SD contact operations)⁽¹⁾	Yes
	Count of the number of electrical fault trips by the circuit breaker (count of SDE contact operations)⁽¹⁾	Yes
Circuit breakers with BSCM module and communicating motor mechanism	Count of the number of times the communicating motor mechanism opens⁽¹⁾	No
	Count of the number of times the communicating motor mechanism closes⁽¹⁾	Yes
	Maximum number of times the communicating motor mechanism closes⁽²⁾	Yes
	Count of the number of times the communicating motor mechanism resets⁽¹⁾	Yes
(1) The user can modify the content of the counter if, for example, the BSCM module is installed or replaced during operation. (2) Overshooting the threshold results in a medium priority alarm. To acknowledge the alarm, modify the content of the counter or the value of the threshold.

Configuring the BSCM Module

To configure the BSCM module, use a PC running EcoStruxure Power Commission software and connected to the USB maintenance interface.

The USB maintenance interface must be connected:

To the RJ45 connector of a ULP module (for example, IFM Modbus-SL interface).
To the test port of MicroLogic 5, 6, and 7 trip units.

With EcoStruxure Power Commission software, you can configure:

The maximum number of times the circuit breaker can open and close.
The maximum number of times the communicating motor mechanism can close.
The reset mode of the communicating motor mechanism.

Configuring the Resetting of the Communicating Motor Mechanism

CAUTION
HAZARD OF REPEATED CLOSING ON ELECTRICAL FAULT Reconfiguring of the BSCM Breaker Status Control Module must be done only by qualified electrical personnel. Failure to follow these instructions can result in injury or equipment damage.

The reset mode of the communicating motor mechanism can be configured using the EcoStruxure Power Commission software:

Enable Reset even if SDE to authorize resetting of the mechanism using the communication network even after an electrical fault trip.
Enable Automatic Reset to authorize automatic resetting after tripping by the MN, MX trip release, or push-to-trip button.
Enable Reset even if SDE and Enable Automatic Reset to authorize automatic resetting even after an electrical fault trip.