Diagnosing Alarms

@writer: This topic is shared in MTZ1 and MTZ2/3 user guides . Any changes made will be made in all these guides.

Diagnosis Sequence

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

Step	Action
1	Identify the alarm detected.
2	Press OK to view details of the alarm detected on the display screen: An alarm message. The date and time that the alarm occurred.
3	Consult the list of alarm messages in the following tables and perform the actions recommended.
4	Press OK to acknowledge the alarm and return to the Home menu.
5	Press the Test/Reset button for 3 seconds to reset the latched events and switch off the trip cause LEDs and the service LED.

Identifying the Alarm Detected

The MicroLogic X control unit indicates alarms with:

The Ready LED (flashing green or off)
The service LED (red or orange)
A pop-up alarm screen (red or orange)

Two levels of alarm are detected and indicated by the color of the service LED:

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

Ready LED	Service LED	MicroLogic X display screen	Trip cause LEDs	Description
Ready LED flashing green or Ready LED off.	Service LED on red.		All LEDs are off or all LEDs are on.	High severity alarm
Ready LED flashing green.	Service LED on orange.		All LEDs are off.	Medium severity alarm

Ready LED

Service LED

MicroLogic X display screen

Trip cause LEDs

Description

Ready LED flashing green or Ready LED off.

Service LED on red.

All LEDs are off or all LEDs are on.

High severity alarm

Ready LED flashing green.

Service LED on orange.

All LEDs are off.

Medium severity alarm

Recommended Action After Detection of High Severity Alarms

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

For more information, refer to the event messages in DOCA0102•• MasterPacT MTZ - MicroLogic X Control Unit - User Guide, in Related Documents at the beginning of this guide.

Code	Alarm message	Alarm description	Recommended action
0x1400 0x1404 0x1405 0x1406 0x1416	Control unit self test major malfunction	The control unit self test detected a major malfunction in the control unit operation. NOTE: The malfunction trips or does not trip the device, depending on the malfunction detected.	Plan to replace the MicroLogic X control unit.
0x1408	Earth leakage (Vigi) sensor disconnected	The control unit self test detected the disconnection of an earth leakage (Vigi) sensor.	Check the connection of the external earth leakage (Vigi) sensor.
0x1409	Unable to read sensor plug	The control unit is unable to read the value of the sensor plug.	Check connection of the sensor plug and performer plugs. If the connection is good but it fails again, replace the sensor plug or the control unit.
0x1413	I∆n/Ig test - no trip	The earth-leakage (I∆n)/ground (Ig) did not trip.	Restart the test. If it fails again, replace the control unit.
0x1430	Protection settings reset to factory values	If switched off, the control unit will be reset at next reboot to the default values of the protection settings, due to a control unit incident.	Update the MicroLogic X control unit firmware with EcoStruxure Power Commission software. Otherwise, plan to replace the MicroLogic X control unit
0x1442	Contact wear > 100%. Replace CB	The contact wear indicator reached the threshold of 100%.	Replace the circuit breaker. Consult contact wear interpretation on EcoStruxure Power Device app in order to estimate the circuit breaker ability to isolate, withstand rated duty, operate, trip.
0x1444	CB has reached the max number of operations	The circuit breaker reached the maximum number of operations.	Replace the circuit breaker.
0x1446	MicroLogic control unit has reached the max service life	MicroLogic control unit reached 15 years of service life.	Replace the MicroLogic X control unit.
0x1451	MCH has reached the max number of operations	The MCH gear motor reached the maximum number of operations.	Replace the MCH.
0x1453	MX1 voltage release has reached the max number of operations	The MX1 voltage release reached the maximum number of operations.	Replace the MX1 voltage release.
0x1455	XF voltage release has reached the max number of operations	The XF voltage release reached the maximum number of operations.	Replace the XF voltage release.
0x1457	MN undervoltage release has reached the max number of operations	The MN undervoltage release reached the maximum number of operations.	Replace the MN undervoltage release.
0x1459	MX2 voltage release has reached the max number of operations	The MX2 voltage release reached the maximum number of operations.	Replace the MX2 voltage release.
0x150F	Replace Circuit Breaker.	The control unit self test detected the malfunction of all internal current power supply sensors of the circuit breaker.	Replace the circuit breaker.
0x1510	Replace Circuit Breaker. Tsd forced to 0.	The control unit self test detected the malfunction of all internal current power supply sensors of the circuit breaker and Tsd is forced to 0.	Replace the circuit breaker.
0x1511	Plan to Replace Circuit Breaker.	The control unit self test detected the malfunction of one or two internal current power supply sensors of the circuit breaker.	Plan to replace the circuit breaker.
0x1512	Replace Circuit Breaker.	The control unit self test detected the major malfunction of one or two internal current power supply sensors of the circuit breaker.	Replace the circuit breaker.

For more information about the maximum number of operations for individual parts, refer to DOCA0099•• MasterPacT MTZ - IEC Switch-Disconnectors and Circuit Breakers with MicroLogic X Control Unit - Maintenance Guide in Related Documents at the beginning of this guide.

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

Recommended Action After Medium Severity Alarms

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

For more information, refer to the event messages in DOCA0102•• MasterPacT MTZ - MicroLogic X Control Unit - User Guide, in Related Documents at the beginning of this guide.

Code	Alarm message	Alarm description	Recommended action
0x03F5	Ir prealarm (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.
0x0D00	Critical hardware modules discrepancy	There is a major hardware discrepancy between the installed modules that prevents them from operating.	Check which module is in critical hardware discrepancy with the EcoStruxure Power Commission software Firmware menu. Replace the module.
0x0D01	Critical firmware modules discrepancy	There is a major software discrepancy between the installed ULP modules that prevents them from operating.	Check which module is in critical firmware discrepancy with the EcoStruxure Power Commission software. Update the module.
0x0D02	Non-critical hardware modules discrepancy	There is a minor hardware discrepancy between the installed modules that prevents them from operating correctly.	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	There is a minor software discrepancy between the installed modules that prevents them from operating correctly.	Check which module is in non-critical firmware discrepancy with the EcoStruxure Power Commission software. Plan to update the module.
0x0D06	Config. error - dual settings or inhibit close order	There is a declaration error between the IO module and the control unit.	Correct the configuration error with EcoStruxure Power Commission software: Dual settings configuration error: Set Switch mode to IO - 1 Wire or IO - 2 Wires. Set IO module with dual setting assignment. Inhibit close order configuration error: Set Allow control by digital input under breaker close as enabled. Set IO module with Enable/Inhibit close order assignment.
0x0D08	Address conflict between modules	The control unit self-test detected the unexpected presence of IO2 module when IO1 is not present.	If two IO modules are installed in the system, make sure one is configured as IO#1, the other as IO#2.
0x0D09	Firmware discrepancy within CU	The control unit self-test detected a discrepancy between the firmware versions of control unit processors.	Check the firmware version of the MicroLogic X control unit with EcoStruxure Power Commission software. If not latest, update the firmware of the MicroLogic X control unit.
0x0D0A	Invalid Control Unit factory config #1	The factory configuration of the control unit is invalid.	Plan to replace the MicroLogic X control unit.
0x0D0C	Config error IO/CU: optional protection Inhibit	There is a declaration error between the IO module and the control unit for inhibition of optional protection functions.	Correct the configuration error with EcoStruxure Power Commission software: If you want optional protection inhibition to be controlled by IO module, connect an IO module with inhibit optional protection assignment. If you do not want optional protection inhibition to be controlled by IO module, connect an IO module without inhibit optional protection assignment.
0x0D0D	Config. error IO and CU - Local/Remote mode	There is a declaration error between the IO module and the control unit for local/remote mode assignment.	Correct the configuration error with EcoStruxure Power Commission software: If you want the L/R mode to be controlled by the IO module, connect an IO module with L/R mode assignment. If you do not want the L/R mode to be controlled by the IO module, connect an IO module without L/R mode assignment.
0x0D0E	Discrepancy between Display and MicroLogic	The control unit self-test detected a discrepancy between the hardware version of the embedded display screen and the firmware version of the control unit.	Replace the embedded display screen.
0x1108	Protection changed by communication	The protection parameters were changed by communication from remote controller, EcoStruxure Power Commission software, or EcoStruxure Power Device app.	No action required, for information only.
0x1120	Communication lost with IO#1 module	The control unit lost communication with the IO1 module.	Check the power supply of the IO1 module. Check the ULP cable connection.
0x1121	Communication lost with IO#2 module	The control unit lost communication with the IO2 module.	Check the power supply of the IO2 module. Check the ULP cable connection.
0x1122	Communication lost with EIFE or IFE module	The control unit lost communication with the EIFE or IFE module.	Check the power supply of the EIFE or IFE module. Check the ULP cable connection.
0x1123	Communication lost with IFM module	The control unit lost communication with the IFM module.	Check the power supply of the IFM module. Check the ULP cable connection.
0x112C	Control unit firmware update unsuccessful	The firmware update of the control unit was unsuccessful.	Restart the update procedure. If the message is displayed again, plan to replace the MicroLogic X control unit.
0x1471 0x1472	Control unit self test	The control unit self-test detected an invalid result with minor impact.	Plan to replace the MicroLogic X control unit.
0x147B	Invalid display screen or wireless communication	The control unit self-test detected an invalid display screen or wireless communication.	Plan to replace the embedded display screen, which contains the wireless antenna.
0x1411	Invalid measurement and optional protection #1	The control unit self-test detected an invalid result with minor impact in the metering and other protection functions of the control unit.	Plan to replace the MicroLogic X control unit.
0x1414 0x1415	NFC invalid communication	The control unit self-test detected an invalid NFC connection.	Plan to replace the embedded display screen, which contains the wireless antenna.
0x1422	Invalid Bluetooth communication	The control unit self-test detected the absence of Bluetooth Low Energy communication.	Plan to replace the embedded display screen.
0x1433	Replace internal battery	The lithium battery is under 3 V and needs to be replaced soon.	Replace internal battery.
0x1434	Self diagnostic test - firmware	The control unit self-test detected a firmware internal incident.	Update the firmware of the MicroLogic X control unit with EcoStruxure Power Commission software.
0x1438	Main voltage loss and Circuit Breaker is closed	The circuit breaker is closed but no voltage is detected.	Check main voltage on the busbar.
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. Consult contact wear interpretation on EcoStruxure Power Device app in order to estimate the circuit breaker ability to isolate, withstand rated duty, operate, trip.
0x1441	Contact wear > 95%. Plan for replacement	The contact wear indicator reached or is above the threshold of 95%.	Plan to replace the circuit breaker. Consult contact wear interpretation on EcoStruxure Power Device app in order to estimate the circuit breaker ability to isolate, withstand rated duty, operate, trip.
0x1443	Remaining service life of CB is below alarm threshold	The circuit breaker reached 80% of the maximum number of operations.	Plan to replace the circuit breaker. To refine this theoretical alarm by taking in account environmental parameters, you may ask for aging diagnostic. If the device is cloud connected, use EcoStruxure asset advisor for remote aging diagnostic. Otherwise, contact Schneider Electric services for a local aging diagnostic.
0x1445	Remaining service life of MicroLogic is below alarm threshold	The control unit reached 12 years of service life.	Plan to replace the MicroLogic X control unit. To refine this theoretical alarm by taking in account environmental parameters, you may ask for aging diagnostic. If the Device is cloud connected, use EcoStruxure asset advisor for remote aging diagnostic. Otherwise, contact Schneider Electric services for a local aging diagnostic.
0x1450	MCH charging operation counter is above alarm threshold	The MCH gear motor reached 80% of the maximum number of operations.	Plan to replace the MCH. Consult the predicted date of replacement on EcoStruxure Power Device app.
0x1452	MX1 voltage release operation counter is above alarm threshold	The MX1 voltage release reached 80% of the maximum number of operations.	Plan to replace the MX1 voltage release. Consult the predicted date of replacement on EcoStruxure Power Device app.
0x1454	XF voltage release operation counter is above alarm threshold	The XF voltage release reached 80% of the maximum number of operations.	Plan to replace the XF voltage release. Consult the predicted date of replacement on EcoStruxure Power Device app.
0x1456	MN undervoltage release operation counter is above alarm threshold	The MN undervoltage release reached 80% of the maximum number of operations.	Plan to replace the MN undervoltage release. Consult the predicted date of replacement on EcoStruxure Power Device app.
0x1458	MX2 voltage release operation counter is above alarm threshold	The MX2 voltage release reached 80% of the maximum number of operations.	Plan to replace the MX2 voltage release. Consult the predicted date of replacement on EcoStruxure Power Device app.
0x1460	Invalid self test - MX1 voltage release	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	MX1 voltage release not detected	The control unit self-test detected the unexpected absence of the MX1 voltage release.	Check the connection of the MX1 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 self-test detected the unexpected absence of the XF voltage release.	Check the connection of the XF voltage release.
0x1464	Invalid self test - MN undervoltage release	The control unit self-test of the MN undervoltage release detected an invalid result with minor impact.	Plan to replace the MN undervoltage release.
0x1465	MN undervoltage release not detected	The control unit self-test detected the unexpected absence of the MN undervoltage release.	Check the connection of the MN undervoltage release.
0x1466	Voltage loss on MN undervoltage release	The circuit breaker opened because there is no control voltage on the MN undervoltage release.	Check the control voltage.
0x1467	Communication loss on MN undervoltage release	The control unit lost communication with the MN undervoltage release.	Check the internal connection of MN undervoltage release.
0x1468	Invalid self test - MX2 voltage release	The control unit self-test of the MX2 voltage release detected an invalid result with minor impact.	Plan to replace the MX2 voltage release.
0x1469	MX2 voltage release not detected	The control unit self-test detected the unexpected absence of the MX2 voltage release.	Check the connection of the MX2 voltage release.
0x140F 0x1474 0x1475 0x1476	Protection settings no accessible	The control unit cannot access the protection settings.	Plan to replace the MicroLogic X control unit.
0x1479	Invalid measurement and optional protection	The control unit self-test detected an invalid measurement or an invalid optional protection function of the control unit.	Plan to replace the MicroLogic X control unit.
0x6200	Ir start (I > 105% Ir)	The long time protection started: at least one of the phase or neutral currents is above the Ir threshold. The circuit breaker will trip at the end of time delay.	No action required, for information only.
0x6300	Ir operate	The long time protection operated: at least one of the phase or neutral currents is above the Ir threshold and the tr time delay is elapsed.	No action required, for information only.
0x6301	Isd operate	The short time protection operated: at least one of the phase or neutral currents is above the Isd threshold and the tsd time delay is elapsed.	No action required, for information only.
0x6302	Ii operate	The instantaneous protection operated: at least one of the phase or neutral currents is above the Ii threshold (no time delay).	No action required, for information only.
0x050C	Ig alarm	The ground fault alarm operated: the ground fault current is above the Ig alarm threshold and the tg time delay alarm is elapsed.	Check insulation between phase/neutral and ground (earth).
0x6303	Ig operate	The ground fault protection operated: the ground fault current is above the Ig threshold and the tg time delay is elapsed.	No action required, for information only.
0x050D	I∆n alarm	The earth leakage alarm operated: the earth leakage current is above the I∆n alarm threshold and the t∆n time delay alarm is elapsed.	Check insulation between phase/neutral and ground (earth).
0x6304	I∆n operate	The earth leakage (I∆n) protection started: the earth leakage current is above the I∆n threshold and the t∆n time delay is elapsed.	No action required, for information only.
0x6310	Undervoltage on 1 phase operate	Undervoltage protection on one phase operated: one of the three monitored voltages is below the Vmin1 threshold.	No action required, for information only.
0x632A	Undervoltage on all 3 phases operate	Undervoltage protection on all three phases operated: the three monitored voltages are below the Vmin2 threshold.	No action required, for information only.
0x6311	Overvoltage on 1 phase operate	Overvoltage protection on one phase operated: one of the three monitored voltages is above the Vmax1 threshold.	No action required, for information only.
0x632B	Overvoltage on all 3 phases operate	Overvoltage protection on all three phases operated: the three monitored voltages are above the Vmax2 threshold.	No action required, for information only.
0x6315	Underfrequency operate	The underfrequency protection operated: the frequency is below the Fmin threshold.	No action required, for information only.
0x6316	Overfrequency operate	The overfrequency protection operated: the frequency is above the Fmax threshold.	No action required, for information only.
0x6314	Reverse power operate	The reverse power protection operated: the reverse power is above the Rp threshold and the tRp time delay is elapsed.	No action required, for information only.
0x6321	IDMTL long-time operate	The IDMTL long-time protection operated: at least one of the phase or neutral currents is above the IDMTL Ir threshold and the IDMTL tr time delay is elapsed.	No action required, for information only.
0x6323	Forward directional overcurrent operate	The forward directional overcurrent protection operated: the forward directional overcurrent is above the Ifw threshold and the tfw time delay is elapsed.	No action required, for information only.
0x6324	Reverse directional overcurrent operate	The reverse directional overcurrent protection operated: the reverse directional overcurrent is above the Irv threshold and the trv time delay is elapsed.	No action required, for information only.
0x6332	IDMTG Ig operate	The IDMTG ground-fault protection operated: the ground-fault current is above the IDMTG Ig threshold and the IDMTG tg time delay is elapsed.	No action required, for information only.
0x0C04	ESM (ERMS switch module) self diagnostic alarm	The ESM self-test detected an invalid result with minor impact.	Plan to replace the ESM (ERMS switch module).
0x0C05	Communication lost with ESM (ERMS switch module)	The control unit lost communication with ESM module (ERSM switch module).	Plan to replace the ESM (ERMS switch module).
0x142C	Ig protection configured in OFF mode	The Ig protection (IEC version) is disabled.	No action required, for information only.
0x142F	Last modification of protection settings has not been completely applied	The control unit did not apply the last modification.	Apply again the protection settings.
0x147C	Invalid optional protection self test	The control unit self-test of optional protections detected an invalid result with minor impact.	Plan to replace the MicroLogic X control unit.
0x6306	Ultimate self-protection (SELLIM) operate	The integrated instantaneous protection (SELLIM) operates: at least one of the phase or neutral currents is above the SELLIM threshold (no time delay).	No action required, for information only.
0x631D	Ultimate self-protection (DIN/DINF) operate	The integrated instantaneous protection (DIN/DINF) operates: at least one of the phase or neutral currents is above the DIN/DINF threshold (no time delay).	No action required, for information only.
0x1480	Schedule basic maintenance within one month	A basic maintenance program should be performed within one month.	Plan to schedule the basic preventive maintenance program⁽¹⁾ within one month. To plan, edit report and track maintenance intervention, you may use EcoStruxure Facility Expert app.
0x1481	Schedule standard maintenance within one month	A standard maintenance program should be performed within one month.	Plan to schedule the standard preventive maintenance program⁽¹⁾ within one month. To plan, edit report and track maintenance intervention, you may use EcoStruxure Facility Expert app.
0x1482	Schedule manufacturer maintenance within three 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.

(1) Global service plans delivered by Schneider Electric may include maintenance plans for your equipment, with a different wording for maintenance levels:

Basic end-user maintenance in this guide corresponds to Routine maintenance in service plans and in maintenance guides for MasterPacT MTZ circuit breakers with MicroLogic X control unit.
Standard end-user maintenance in this guide corresponds to Intermediate maintenance in service plans and in maintenance guides for MasterPacT MTZ circuit breakers with MicroLogic X control unit.
Manufacturer maintenance remains the same.