0614IB1701

Opening Masterpact MTZ Devices

Conditions Required to Open

To open the device, the device must be closed (I).

NOTE: An opening order always takes priority over a closing order.

Opening the Masterpact MTZ2/MTZ3 Mechanism in All Control Modes

The device can be opened in the following ways in all control modes:

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
  • Turn off all power supplying the downstream equipment by manually opening the circuit breaker.
  • Before working on or inside equipment, always use a properly rated voltage sensing device to confirm power is off.
Failure to follow these instructions will result in death or serious injury.

Opening Type

Control Mode

Accessories

Opening Action

Mechanical

Manual, Auto: Local, or Auto: Remote

Press the opening pushbutton on the front of the device.

This opening action is possible at any time.

Automatic

Manual, Auto: Local, or Auto: Remote

Undervoltage release (MN), with or without MN delay unit

The undervoltage release (MN) opens the device automatically in the case of voltage drop.

By external pushbutton

Manual, Auto: Local, or Auto: Remote

External pushbutton wired by customer

Press the external pushbutton which is connected to the shunt trip (MX) or to the undervoltage release (MN) via the customer terminal block.

When the undervoltage release (MN) is connected to the MN delay unit, the device opens with the corresponding time delay.

MX or MN accessory:

  • Standard shunt trip (MX) or communicating shunt trip (MX diag&com)

  • Undervoltage release (MN), with or without MN delay unit

If the device does not open, refer toTroubleshooting.

Opening the Masterpact MTZ2/MTZ3 Mechanism in Auto Control Mode

In addition, the device can be opened in the following ways when Auto control mode is configured.

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
  • Turn off all power supplying the downstream equipment using the local or remote software for opening the circuit breaker or switching off the electrical circuit.
  • Before working on or inside equipment, always use a properly rated voltage sensing device to confirm power is off.
Failure to follow these instructions will result in death or serious injury.

Opening Type

Control Mode

Accessories

Opening Action

Through IO module

Auto: Local or Auto: Remote

Communicating shunt trip (MX diag&com)

Open the device by using the predefined application 2 Breaker Operation of the IO module.

  • When the device is set to local control mode by the IO module, the command to open is issued from local pushbuttons wired on digital inputs.

  • When the device is set to remote control mode by the IO module, the command to open is issued from remote PLC outputs wired on digital inputs.

Refer to Enerlin’X IO Input/Output Application Module for One Circuit Breaker - User Guide (0613IB1317).

ULP port

IO module

Through Ecoreach software

Auto: Local

Communicating shunt trip (MX diag&com)

Send a command to open to the device from Ecoreach software running on a PC connected locally to the device through the mini USB port on the Micrologic X control unit.

This opening action is password-protected. Refer to Ecoreach Online Help (DOCA0069EN).

Through Masterpact MTZ Mobile App

Auto: Local

Communicating shunt trip (MX diag&com)

Send a command to open to the device from the Masterpact MTZ Mobile App with Masterpact Operation Assistant Digital Module, through Bluetooth wireless communication or USB OTG connection. The opening action is password-protected.

Masterpact Operation Assistant Digital Module

Through communication

Auto: Remote

Communicating shunt trip (MX diag&com)

Send a command to open to the device through the communication network.

This opening action is password-protected. Refer to Masterpact MTZ - Modbus Communication Guide (OCA0105EN).

NOTE: Ecoreach software running on a PC connected to the device through the communication network can be used to send commands to open.

ULP port module

Communication interface

Through IFE/EIFE webpages

Auto: Remote

Communicating shunt trip (MX diag&com)

Send a command to open to the device from the IFE/EIFE control webpage.

This opening action is password-protected.

Refer to:

ULP port module

Communication interface

If the device does not open, refer to Troubleshooting.

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