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Les langues disponibles
Protection unit MP4.10
3. Diagnostic test
During commissioning and periodic maintenance it is recommended to carry out the self-diagnostic procedure
by means of the "T" button on the MP4.10 front to verify the correct operation of the breaker and the protec-
tion unit. The self-diagnostic procedure managed by the microcontroller allows to check the efficiency of the
PU and the device, causing the opening/trip of the DMX³ after electronic command, starting from the CLOSE
position and MP4.10 on, as described below:
Test could be
performed with
power contacts
closed (I)
1. Press T button for at least 1 second
2. Confirm your choice in the popup that will appear on the screen
3. Check the trip from the menu; if the test was successful, the message TRIPPED will appear with date/time of
17/11/2021
17/11/2021
Test
Test
09/11/2021
14:42:27
09/11/2021
14:42:27
A self-diagnostic verification is logged as Test in history
If the test fails, nothing appears in the history
Test
Test
Con rm
NO
Con rm
YES
NO
YES
test trip.
14:42
14:42
TRIPPED
TRIPPED
T Button
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