Schneider Electric Micrologic Control units 2.0 A, 5.0 A, 6.0 A, 7.0 A St
19 fault codes documented
Auto-protection trip LED
This LED indicates the circuit breaker has tripped due to its internal auto-protection function, such as overheating or a short-circuit beyond its capacity.
Confirming and locking a new setting
Press the 'arrow' button to confirm and lock the new setting you have selected. The flashing stops, and a closed padlock icon appears.
Battery charge low indication
The system is indicating that the control unit's battery charge is low. This may affect certain functions or data logging.
Battery status check
Pressing this button displays the current charge level of the internal battery, which maintains fault indications.
Fault detected by upstream device
An upstream device has detected a fault. Depending on the settings, this may cause a delay in tripping to allow downstream devices to clear the fault.
Resetting fault indications
This button is used to clear any active fault or trip indications after the cause has been identified and addressed.
Ground-fault or earth-leakage trip LED
This LED indicates that the circuit breaker has tripped due to a ground-fault (Ig) or earth-leakage (I∆n) condition.
Long-time current setting exceeded LED
This LED indicates that the long-time current setting (Ir) has been exceeded, causing a trip.
Short-time or instantaneous trip LED
This LED signals a trip caused by exceeding the short-time pickup (Isd) or instantaneous pickup (Ii) settings.
Short-time and ground-fault delays are zero due to missing ZSI jumper
If the circuit breaker is equipped for ZSI protection but the protection function is not used, a jumper must be installed. Without it, the short-time and ground-fault tripping delays will be set to zero, preventing proper discrimination.
Accessing first screen of communication settings
Holding the 'menu' and 'arrow' buttons for four seconds allows you to access the first screen of the communication settings branch. A padlock icon indicates if the setting is locked.
Moving to the next parameter or branch
Press the 'arrow' button to proceed to the next parameter within the current branch. Press the 'menu' button to go to the next major settings branch (e.g., from communication to measurement settings).
Padlock icon closed — Modbus address locked
A closed padlock icon is displayed next to the Modbus address. This means the current setting is locked and cannot be changed without unlocking it first.
Padlock icon open — Modbus address unlocked
An open padlock icon is displayed. This means the Modbus address is unlocked and ready for modification.
Selecting a new setting value
Press the 'Quick View' button to scroll through and select new values for a setting. Each press moves to the next option in a loop.
Unlocking a setting for modification
Pressing the 'Quick View' button after accessing a setting allows you to unlock it. The setting, or the first digit of a two-digit setting, will then flash, indicating it's ready to be changed.
Second digit flashing — Ready to change Modbus address
The second digit of the Modbus address is flashing on the display. This means it is ready to be modified.
Trip history available for review
The control unit has recorded past tripping events. This history can be accessed for analysis and troubleshooting.
First digit flashing — Ready to change Modbus address
The first digit of the Modbus address is flashing on the display. This indicates that the unit is ready for you to change this digit.