Opening Function

Presentation

MicroLogic X control units receive and process electrical opening orders. An event is generated on opening.

Operating Principle

Opening orders can be sent as follows:

Directly through a mechanical opening pushbutton.
Locally through an external opening pushbutton.
Remotely through a remote order which is managed by the MicroLogic X control unit.

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

The open orders on MN or MX voltage releases by external pushbutton can be maintained to force the circuit breaker in open position and reject any close order. The MicroLogic X open orders are not maintained.

Management of Opening Function

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 opening the circuit breaker or switching off the electrical circuit. Failure to follow these instructions will result in death or serious injury.

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 opening the circuit breaker or switching off the electrical circuit.

Failure to follow these instructions will result in death or serious injury.

The MicroLogic X control unit manages opening orders issued by the following means:

IO module with the Breaker Operation predefined application. Refer to Enerlin'X IO - Input/Output Application Module for One Circuit Breaker - User Guide.
EcoStruxure Power Commission software.
EcoStruxure Power Device app through Bluetooth or USB OTG with MasterPacT Operation Assistant Digital Module installed and activated.
Remote controller connected to the communication network:
- For communication through Modbus protocol, refer to DOCA0105•• MasterPacT MTZ Circuit Breakers with MicroLogic X Control Units - Modbus Communication - User Guide.
- For communication through IEC 61850 communication standard, refer to DOCA0162•• MasterPacT MTZ Circuit Breakers with MicroLogic X Control Units - IEC 61850 Communication Guide.
IFE/EIFE webpages. Refer to the relevant document:
- Enerlin'X EIFE - Embedded Ethernet Interface for One MasterPacT MTZ Drawout Circuit Breaker - User Guide
- Enerlin'X IFE - Ethernet Interface for One Circuit Breaker - User Guide
- 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.
FDM128 display through IFE or EIFE interface. Refer to DOCA0037•• Enerlin'X FDM128 - Ethernet Display for Eight Devices - User Guide.

The opening function is monitored by the MicroLogic X control unit.

CB closed	Circuit breaker is closed
Auto: Local	Control mode is Auto Local
EPD open	Open order from EcoStruxure Power Device app with MasterPacT Operation Assistant Digital Module
EPC USB open	Open order from EcoStruxure Power Commission software connected to the mini USB port on control unit
IO local open	Local open order from IO module with the Breaker Operation predefined application (I5)
FDM121 open	Open order from FDM121 display
Auto: Remote	Control mode is Auto Remote
COM open	Open order from a remote controller
Webpage open	Open order from IFE/EIFE webpage
IO remote open	Remote open order from IO module with the Breaker Operation predefined application (I2)
FDM128 open	Open order from FDM128 display
EPC COM open	Open order from EcoStruxure Power Commission software through the communication network
Open	MicroLogic X open order to the MX communicating opening voltage release

Predefined Events

The function generates the following predefined events:

Code	Event	History	Severity
0x1000 (4096)	Circuit breaker opened	Operation	Low
0x0410 (1040)	Opening order sent to MX voltage release	Operation	Low
0x111F (4383)	Allow control by digital input is disabled	Operation	Low