Alarm Simulation

MicroLogic 5, 6, and 7 Alarms

MicroLogic 5, 6, and 7 trip units can generate:

• One or two pre-alarms (depending on the type of trip unit) assigned to:

  • Long-time protection (PAL Ir) for the MicroLogic 5 trip unit.

  • Long-time protection (PAL Ir) and ground-fault protection (PAL Ig) for the MicroLogic 6 trip unit.

  • Long-time protection (PAL Ir) and earth-leakage protection (PAL IΔn) for the MicroLogic 7 trip unit.

    By default, these alarms are active.

• Ten alarms defined by the user as required, using EPC software. The user assigns each of these alarms to a measurement.

  By default, these alarms are not active.

The pre-alarms and user-defined alarms are accessible:

• Using EPC software.

• Using the communication network.

• On the FDM121 display.

The pre-alarms and user-defined alarms can be assigned to an SDx module output using EPC software.

For more information on MicroLogic 5, 6 and 7 alarms, refer to ComPacT NSX MicroLogic 5/6/7 Electronic Trip Units – User Guide.

Alarm Simulation Objectives

The objectives of the alarm simulation function are:

• To simulate each MicroLogic activated pre-alarm and user-defined alarm.

• To simulate and check the alarms with EPC software.

• To check that, depending on the application and the MicroLogic configuration, the simulated alarms are reported:

  • On the FDM121 display.

  • On the Modbus registers.

  • On the SDx module.

Alarm Simulation Procedure

The simulation procedure is the same for pre-alarms or user-defined alarms.

Perform the following steps for the simulation of one alarm:

1. Select Configure in the Device view page.

   The Configuration screen is displayed.

2. Select the Alarms tab on the Alarm screen and click Test Alarm.

   The list of MicroLogic pre-alarms and the 10 possible user-defined alarms are displayed.

3. Select one or several activated alarms to simulate and click SIMULATE.

   NOTE: Select only activated alarms. The simulation of deactivated alarms will be unsuccessful.
   
   NOTE: Click ABORT to reset the selection of alarms to simulate.

4. Enter the MicroLogic Administrator password and click CONTINUE.

   The selected alarms are simulated and the simulation result is displayed.

Alarm Simulation with FDM121 Display

When the MicroLogic 5, 6, or 7 trip unit is connected to an FDM121 display, the alarm simulation allows to check the correct management of the alarm on the FDM121 display.

1. Run the alarm simulation procedure for each activated alarm separately.

2. If the result of the alarm simulation is successful for EPC software, check the simulation result on the FDM121 display. The alarm simulation results depend on the alarm priority level:

   • If the simulated alarm is a high priority alarm:

     • The alarm is logged in the FDM121 alarm history.

     • The FDM121 LED flashes.

     • A dialog box informs the user that the alarm is active.

       The LED turns OFF and the pop-up screen disappears when the user presses the Clear button on the FDM121 display (considering the alarm is no more active).

   • If the simulated alarm is a medium priority alarm:

     • The alarm is logged in the FDM121 alarm history.

     • The FDM121 LED is constantly ON.

       The LED turns OFF when the user reads the FDM121 alarm history.

   • If the simulated alarm is a low priority alarm, the alarm is logged in the FDM121 alarm history but there is no display of the alarm.

   • If the simulated alarm is a no priority alarm, the alarm is not logged in the FDM121 alarm history.

For more information on the alarms displayed on the FDM121 display, refer to FDM121 Front Display Module for One Circuit Breaker – User Guide.

Alarm Simulation with Communication Network

When MicroLogic 5, 6, or 7 alarms is connected to a communication network, the alarm simulation allows to check the correct management of the alarm by the communication network.

1. Run the alarm simulation procedure for all activated alarms.

2. If the result of the alarm simulation is successful for EPC software, check that the alarm status is correctly reported remotely through the communication network.

For more information, refer to ComPacT NSX – Modbus Communication – User Guide.

Alarm Simulation with SDx Module

When MicroLogic 5, 6, or 7 alarms are assigned to an SDx module output, the alarm simulation allows to check the correct management of the alarm on the SDx module.

1. Run the alarm simulation procedure for each activated alarm assigned to an SDx module output separately.

2. If the result of the alarm simulation is successful for EPC software, check that the SDx module output changes state.

For more information on MicroLogic 5, 6 and 7 alarms, refer to ComPacT NSX MicroLogic 5/6/7 Electronic Trip Units – User Guide.