Resetting the Circuit Breaker After a Trip Due to an Incident Detected by MicroLogic Active Self-tests

@experts: Topic shared between DOCA0284, DOCA0285 and DOCA0266; indicate if comments do not apply to both guides

Reset Sequence

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

Step	Action
1	Identify the trip cause on the pop-up trip message and trip cause LED.
2	Consult the list of possible detected incidents and perform the actions recommended.
3	Press OK to acknowledge and close the pop-up trip message.
4	Reset the circuit breaker.
5	Press the button for 3 seconds to: Reset the latched events. Switch off the trip cause LEDs and revert the Status bar to green. Return to the tree navigation menu.
6	When the circuit breaker is ready to close, re-close it.

NOTE: You can combine steps 3 and 5 by pressing the

button instead of OK in step 3.

Identifying the Trip Cause

Description	Display screen	Status and Trip cause LED display	Status and Trip cause LED description
Major MicroLogic Active control unit incident detected during self-test.	Trip message is displayed on a red screen.		Ready LED: off Status bar: red blinking ERMS LED: off All trip cause LEDs: red blinking

Description

Display screen

Status and Trip cause LED display

Status and Trip cause LED description

Major MicroLogic Active control unit incident detected during self-test.

Trip message is displayed on a red screen.

Ready LED: off

Status bar: red blinking

ERMS LED: off

All trip cause LEDs: red blinking

Recommended Actions

The following table indicates what action to perform according to the trip message after a trip due to an incident detected by MicroLogic Active self-tests.

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

Code	Trip message	Description	Recommended action
0x4005	Control unit over temperature trip.	The temperature of the control unit is above the maximum temperature threshold.	Decrease ambient temperature near the circuit breaker.
0x4006	Ultimate self-protection (SELLIM) trip)	The circuit breaker tripped due to SELLIM protection.	Reset the circuit breaker.
0x4007	Self diagnostic trip. Replace control unit	The circuit breaker tripped following a control unit internal event.	Replace the MicroLogic Active control unit. Contact Schneider Electric support.
0x400A	ENCT disconnected trip.	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)
0x401D	Ultimate self-protection (DIN/DINF) trip	The circuit breaker tripped due to DIN/DINF protection.	Reset the circuit breaker.
0x401E	Ig test trip	The circuit breaker tripped due to the ground-fault protection test.	Reset the circuit breaker.
0x4033	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.
0x4035	Ii test trip	The circuit breaker tripped due to the instantaneous protection test.	Reset the circuit breaker.

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