Diagnosing Alarms

Diagnosis Sequence

The following table shows the sequence of actions to take after an alarm is detected by the MicroLogic Active control unit. Further explanation of each action is given in the following paragraphs.

Step	Action
1	Identify the alarm detected.
2	Consult the list of alarm messages in the following tables and perform the actions recommended.
3	Press OK to acknowledge the alarm.
4	Press the button for 3 seconds to reset the latched events, switch off the trip cause LEDs and revert the status bar to green.

Identifying the Alarm Detected

The MicroLogic Active control unit indicates alarms with:

The Ready LED (flashing green or off)
The Status bar (red or orange)
The L trip cause LEDs (red or orange)
A pop-up alarm screen (red or orange)

Two levels of alarm are detected and indicated by the color of the status bar:

Red for high-severity detected alarms.
Orange for medium-severity detected alarms.

Description	Display screen	Status and Trip cause LED description
High severity alarm	Alarm message is displayed on a red screen.	Ready LED: green flashing Status bar: red on ERMS LED: off All trip cause LEDs off
Overload alarm: phase current > 105% Ir	Alarm message is displayed on a red screen.	Ready LED: green flashing Status bar: red on ERMS LED: off L trip cause LED: on
Medium severity alarm	Alarm message is displayed on an orange screen.	Ready LED: green flashing Status bar: orange on ERMS LED: off All trip cause LEDs off
Overload pre-alarm: 90% Ir < Current < 105% Ir	Alarm message is displayed on an orange screen.	Ready LED: green flashing Status bar: orange on ERMS LED: off L trip cause LED: red on

Recommended Action After Detection of High Severity Alarms

@experts: list of alarms based on Event Census v7–23

The following table indicates what action to perform according to the alarm message.

For more information about event messages, refer to DOCA0265•• MasterPacT MTZ - MicroLogic Active Control Unit - User Guide.

Code	Alarm message	Alarm description	Recommended action
0x1400	Self-test 1. Replace control unit.	The control unit self test detected a major internal event in the control unit operation.	Replace the MicroLogic Active control unit. Contact Schneider Electric support.
0x1402	Current sensor loss. Replace circuit breaker.	The control unit self test detected the disconnection of an internal sensor of the circuit breaker.	Replace the circuit breaker. Contact Schneider Electric support.
0x1403	ENCT disconnected	The control unit self-test detected the disconnection of the external neutral current sensor of the circuit breaker.	Check internal/external wiring of External Neutral Current Sensor (ENCT)
0x1404	Control unit over temperature	The temperature of the control unit is above the maximum temperature threshold.	Decrease ambient temperature near the circuit breaker.
0x1405	Self-test 3. Replace control unit.	The control unit self test detected a major internal event in the control unit operation.	Replace the MicroLogic Active control unit. Contact Schneider Electric support.
0x1406	Self-test 4. Replace control unit.	The control unit self test detected a major internal event in the control unit operation.	Replace the MicroLogic Active control unit. Contact Schneider Electric support.
0x1409	Unable to read sensor plug	The control unit is unable to read the value of the sensor plug.	@Caroline/Adrien: use of word “fail” normally avoided due to legal implications; advise if event census will be changed Check connection of the sensor plug and performer plugs. If the connection is good but it fails again, replace the sensor plug or the MicroLogic Active control unit.
0x1413	Ig test - no trip	The circuit breaker did not trip during the ground-fault protection test.	@Caroline/Adrien: use of word “fail” normally avoided due to legal implications; advise if event census will be changed Restart the test. If it fails again, replace the MicroLogic Active control unit.
0x151B	Ii test - no trip	The circuit breaker did not trip during the instantaneous protection test.	@Caroline/Adrien: use of word “fail” normally avoided due to legal implications; advise if event census will be changed Restart the test. If it fails again, replace the MicroLogic Active control unit.
0x1416	Mitop disconnected. Call Schneider Electric support	The circuit breaker Mitop is disconnected.	Contact Schneider Electric support before restarting
0x1430	Protection settings reset to factory values.	If the control unit is switched off due to an internal event, protection settings are reset to default protection settings at the next reboot.	Update the MicroLogic Active control unit firmware with EcoStruxure Power Commission software. Otherwise, plan to replace the MicroLogic Active control unit.
0x1442	Contact wear > 100%. Replace circuit breaker	The contact wear indicator reached the threshold of 100%.	Replace the circuit breaker. Consult contact wear interpretation in MicroLogic Active control unit user guide in order to estimate the circuit breaker ability to isolate, withstand rated duty, operate, trip.
0x150F	Iron CT loss. Replace circuit breaker.	The control unit self test detected an event in all internal current power supply sensors of the circuit breaker.	Replace the circuit breaker.
0x1518	Self-test 6. Replace control unit.	The control unit self test detected a major internal event in the control unit operation.	Replace the MicroLogic Active control unit. Contact Schneider Electric support.
0x6200	Ir start (I > 105% Ir)	The long time protection prealarm started: at least one of the phase or neutral currents is above the 105% Ir threshold. The circuit breaker is operating close to Ir threshold.	No action required. For information only.

For more information about the maximum number of operations for individual parts, refer to DOCA0305•• MasterPacT MTZ IEC Circuit Breakers with MicroLogic Active Control Unit - Maintenance Guide.

Contact your Schneider Electric Services representative for more information about who can carry out the recommended actions.

Recommended Action After Medium Severity Alarms

@experts: list of alarms based on Event Census v7–23

The following table indicates what action to perform according to the alarm message.

For more information about event messages, refer to DOCA0265•• MasterPacT MTZ - MicroLogic Active Control Unit - User Guide.

Code	Alarm message	Alarm description	Recommended action
0x03F5	Ir pre-alarm (I > 90% Ir)	The long time protection prealarm started: at least one of the phase or neutral currents is above the 90% Ir threshold. The circuit breaker is operating close to Ir threshold.	Check the load.
0x0D09	Firmware discrepancy within control unit	The control unit self-test detected a discrepancy between the firmware versions of control unit processors.	Check the firmware version of the MicroLogic Active control unit with EcoStruxure Power Commission software. If not latest, update the firmware of the MicroLogic Active control unit.
0x140F	Protection settings not accessible 1.	The control unit cannot access the protection settings.	Plan to replace the MicroLogic Active control unit.
0x1421	Invalid PowerTag communication	Invalid communication with the Power Tag.	Reboot control unit by simultaneously pressing the 5 buttons , OK, Back, Up, Down. If this does not work, contact Schneider Electric Support.
0x142F	Last protection settings have not been applied.	The control unit did not apply the last modification.	Apply again the protection settings.
0x1440	Contact wear > 60%. Check contacts.	The contact wear indicator reached or is above the threshold of 60%.	Inspect visually the arc chute and main contacts at the next scheduled maintenance.
0x1441	Contact wear > 95%. Plan circuit breaker replacement.	The contact wear indicator reached or is above the threshold of 95%.	Plan to replace the circuit breaker.
0x1473	Internal access loss. Reboot control unit	Internal access. Reset control unit	Internal access loss. Reboot control unit by simultaneously pressing the 5 buttons , OK, Back, Up, Down.
0x1474	Protection settings not accessible 2.	The control unit cannot access the protection settings.	Reboot control unit by simultaneously pressing the 5 buttons , OK, Back, Up, Down.
0x1482	Sched. Manufact. maintenance within 3 months	A manufacturer maintenance program should be performed within three months.	Plan to schedule the manufacturer preventive maintenance program within three months. To plan, edit report and track maintenance intervention, you may use EcoStruxure Facility Expert app.
0x1122	Communication lost with EIFE or IFE module	The control unit lost communication with the EIFE or IFE communication interface.	Check the power supply of the EIFE or IFE communication interface. Check the ULP cable connection.
0x1123	Communication lost with IFM module	The control unit lost communication with the IFM communication interface.	Check the power supply of the IFM communication interface. Check the ULP cable connection.
0x1460	Invalid self test - MX1 voltage release	@experts:resolve inconsistency? Event Census uses MX1 here but MX below The control unit self-test of the MX1 voltage release detected an invalid result with minor impact.	Plan to replace the MX1 voltage release.
0x1461	MX voltage release not detected	@experts:resolve inconsistency? Event Census uses MX here but MX1 above The control unit lost communication with the MX voltage release.	Check the connection of the MX voltage release.
0x1462	Invalid self test - XF voltage release	The control unit self-test of the XF voltage release detected an invalid result with minor impact.	Plan to replace the XF voltage release.
0x1463	XF voltage release not detected	The control unit lost communication with the XF voltage release.	Check the connection of the XF voltage release.
0x1800	Communication lost with BCIM	The control unit lost communication with the BCIM module.	Check the power supply of the BCIM module. Check the ULP cable connection.
0x1802	BCIM in Critical Status. Replace BCIM	The BCIM module is in a critical condition.	Replace BCIM module.
0x1803	BCIM in non-Critical Status. Restart BCIM power supply.	The BCIM module is in a non-critical condition.	Disconnect and connect again BCIM 24 Vdc Power supply.
0x0D00	Critical hardware modules discrepancy	A critical hardware discrepancy has been detected.	Check which module is in critical hardware discrepancy with the EcoStruxure Power Commission software Firmware menu. Replace the module.
0x0D01	Critical firmware modules discrepancy	A critical firmware discrepancy has been detected.	Check which module is in critical firmware discrepancy with the EcoStruxure Power Commission software. Update the module.
0x0D02	Non-critical hardware modules discrepancy	A non-critical hardware discrepancy has been detected.	Check which module is in non-critical hardware discrepancy with the EcoStruxure Power Commission software Firmware menu. Plan to replace the module.
0x0D03	Non-critical firmware modules discrepancy	A non-critical firmware discrepancy has been detected.	Check which module is in non-critical firmware discrepancy with the EcoStruxure Power Commission software. Plan to update the module.