Closing Function

Closing orders can be sent as follows:

• Directly through a mechanical closing pushbutton.

• Locally through an external closing pushbutton.

• Remotely through a remote order which is managed by the MicroLogic Active control unit.

Opening orders have priority over closing orders. No closing orders are taken into account as long as an open order is active.

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH Do not operate the circuit breaker without confirming that doing so will not create a hazardous situation. Do not allow any person to work on the electrical network without physically validating the successful execution of the local or remote software actions for closing the circuit breaker or switching on the electrical circuit. Failure to follow these instructions will result in death or serious injury.

WARNING
HAZARD OF CLOSING ON ELECTRICAL FAULT Do not close the circuit breaker again without first inspecting and, if necessary, repairing the downstream electrical equipment. Failure to follow these instructions can result in death, serious injury, or equipment damage.

The MicroLogic Active control unit manages closing orders issued by the following means:

• Server or remote controller connected to the communication network through Modbus protocol. For information about communication through Modbus protocol, refer to DOCA0384•• MasterPacT, ComPacT, PowerPacT Circuit Breakers - Modbus Communication - User Guide.

• IFE/EIFE webpages. Refer to the relevant document:

  • DOCA0106•• Enerlin'X EIFE - Embedded Ethernet Interface for One MasterPacT MTZ Drawout Circuit Breaker - User Guide

  • DOCA0142•• Enerlin'X IFE - Ethernet Interface for One Circuit Breaker - User Guide

  • DOCA0084•• Enerlin'X IFE - Ethernet Switchboard Server - User Guide

• FDM121 display connected to the ULP system. Refer to DOCA0088•• Enerlin'X FDM121 - Front Display Module for One Circuit Breaker - User Guide.

The control logic for managing closing orders is summarized in the following graphic and table: