Opening, Closing, and Resetting Circuit Breakers With Communicating Motor Mechanism

Introduction

The communicating motor mechanism can open and close a circuit breaker remotely, with remote commands via the communication network.

For this function, use a communicating motor mechanism and a BSCM Modbus SL/ULP module.

Connect the BSCM Modbus SL/ULP module to the communication network:

To receive closing, opening, and reset commands from the circuit breaker.
To transmit the circuit breaker states: O (OFF), I (ON), Tripped by SDE.

NOTE: The communicating motor mechanism has a specific reference (refer to LVPED221002EN ComPacT NSX, ComPacT INS/INV, MasterPacT NW DC - DC PV Catalog).

The schematic for the communicating motor mechanism in the BSCM Modbus SL/ULP module can be configured with EcoStruxure Power Commission software. It must be created in strict accordance with the simplified motor mechanism schematic.

CAUTION
HAZARD OF REPEATED CLOSING ON ELECTRICAL FAULT Do not modify the wiring diagrams for the motor mechanism. Failure to follow these instructions can result in injury or equipment damage.

Manual Operation: Opening, Closing, and Resetting Locally

The process is the same as the standard motor mechanism.

Automatic Operation: Opening, Closing, and Resetting Remotely

The process is the same as the standard motor mechanism.

Resetting After a Trip on Electrical Fault

Without modifying the factory configuration, resetting after a trip on electrical fault can only be done locally, as for the standard motor mechanism.

For circuit breakers with communicating motor mechanism, it is possible to authorize remote reset. The reset mode of the communicating motor mechanism can be configured by using:

EcoStruxure Power Commission software
The communication network

For more information, refer to Configuring the Communicating Motor Mechanism.