Monitoring the Tripping Circuit
When the MicroLogic X control unit is energized, it provides constant monitoring of the following:
oThe internal tripping circuit
oThe connection of the internal sensors (internal current transformers, sensor plug, performer plug)
oThe connection of the circuit breaker tripping voltage release (MITOP) to the MicroLogic X control unit
oThe connection of the ENCT (External Neutral Current Transformer)
oThe connection of the earth-leakage (Vigi) sensor
NOTE: The mechanism is not monitored. It is recommended to perform preventive maintenance as proposed by Schneider Electric. For more information, refer to DOCA0099EN MasterPact MTZ - Circuit Breakers and Switch-Disconnectors - Maintenance Guide.
Operating Principle: Ready LED
A Ready LED |
The result of the monitoring is indicated by the ready LED on the front face of the MicroLogic X control unit, as follows: oThe ready LED is flashing green: the internal tripping circuit of the circuit breaker is functioning correctly oThe ready LED is off: oEither the MicroLogic X control unit is not energized. Provide power to the control unit with a Mobile Power Pack. If the ready LED is still off, consult the log of active events at Home > Alarms & History > Alarms to diagnose the situation. oOr there is a detected incident in the tripping circuit. Consult the log of active events at Home > Alarms & History > Alarms to diagnose the situation. |
Following the detection of an incident in the tripping circuit the circuit breaker may be tripped or not, depending on the type of incident detected.
Tripping Data and Availability
The following data about the tripping function is logged by the MicroLogic X control unit:
oTotal number of trips
oThe name and date of the most recent trip
The tripping data is available as follows:
oWith EcoStruxure Power Commission software
oOn a remote controller using the communication network
The monitoring of the tripping circuit generates the following events:
|
Code |
Event |
History |
Severity |
|---|---|---|---|
|
0x6407 (25607) |
Self diagnostic trip |
Trip |
High with trip |
|
0x641F (25631) |
Circuit breaker self diagnostic trip |
Trip |
High with trip |
|
0x1400 (5120) |
Control unit self test major malfunction 1 |
Diagnostic |
High, with trip depending on the malfunction detected |
|
0x1404 (5124) |
Control unit self test major malfunction 2 |
Diagnostic |
High, with trip depending on the malfunction detected |
|
0x1405 (5125) |
Control unit self test major malfunction 3 |
Diagnostic |
High, with trip depending on the malfunction detected |
|
0x1406 (5126) |
Control unit self test major malfunction 4 |
Diagnostic |
High, with trip depending on the malfunction detected |
|
0x1416 (5142) |
Control unit self test major malfunction 5 |
Diagnostic |
High, with trip depending on the malfunction detected |
|
0x1402 (5122) |
Internal current sensor disconnected |
Diagnostic |
High with trip |
|
0x1403 (5123) |
External neutral current sensor disconnected |
Diagnostic |
High with trip |
|
0x1430 (5168) |
Protection settings reset to factory values |
Diagnostic |
High |
|
0x1409 (5129) |
Unable to read sensor plug |
Diagnostic |
High |
|
0x1408 (5128) |
Earth leakage (Vigi) sensor disconnected |
Diagnostic |
High |
|
Code |
Event |
Recommended actions |
|---|---|---|
|
0x6407 (25607) |
Self diagnostic trip |
Plan to replace the MicroLogic X control unit. |
|
0x641F (25631) |
Circuit breaker self diagnostic trip |
Replace the circuit breaker. |
|
0x1400 (5120) |
Control unit self test major malfunction 1 |
Plan to replace the MicroLogic X control unit. |
|
0x1404 (5124) |
Control unit self test major malfunction 2 |
Plan to replace the MicroLogic X control unit. |
|
0x1405 (5125) |
Control unit self test major malfunction 3 |
Plan to replace the MicroLogic X control unit. |
|
0x1406 (5126) |
Control unit self test major malfunction 4 |
Plan to replace the MicroLogic X control unit. |
|
0x1416 (5142) |
Control unit self test major malfunction 5 |
Plan to replace the MicroLogic X control unit. |
|
0x1402 (5122) |
Internal current sensor disconnected |
Plan to replace the MicroLogic X control unit. |
|
0x1403 (5123) |
External neutral current sensor disconnected |
Check connection of the External Neutral Current Sensor (ENCT). |
|
0x1430 (5168) |
Protection settings reset to factory values |
Update the MicroLogic X control unit firmware with EcoStruxure Power Commission software. Otherwise, plan to replace the MicroLogic X control unit. |
|
0x1409 (5129) |
Unable to read 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. |
|
0x1408 (5128) |
Earth leakage (Vigi) sensor disconnected |
Check the connection of the external earth leakage (Vigi) sensor. |
Contact your field service representative for more information about who can carry out the recommended actions.
For information about resetting the circuit breaker after a trip due to an incident detected by the MicroLogic X self-tests, refer to the relevant document:
oMasterPact MTZ1 - Circuit Breakers and Switch-Disconnectors - User Guide
oMasterPact MTZ2/MTZ3 - Circuit Breakers and Switch-Disconnectors - User Guide
