Alarms - LEGRAND 261 93 Mode D'emploi

9. Alarms

• When the unit is running, it is possible to verify a
number of abnormal situations which are signaled
in different ways.
• Some alarms (tripped, withdrawn) have a dedi-
cated LED which begins to flash when the
alarms go on.
• Other alarms are signaled through a code which
consists of an A (alarm) and a number indicating
which alarm it is. This code will be flashing on one
of the displays. If the code refers to the main line
branch, the alarm will be displayed on the left.
Conversely, if the code refers to the secondary line
branch or if it is a generic alarm (e.g. battery), it
will be displayed on the right.
• When an alarm goes on, the red LED "ALARM"
flashes in sync with the dedicated LED or with the
alarm code.
• The Global alarm relay output is de-energized dur-
ing alarm conditions whereas it is energized under
normal conditions. If the unit does not operate due
to a failure or power supply problems, it will gen-
erate an alarm condition on its contact.
• Some alarms are automatically reset when the
conditions generating them fail to work.
• Other alarms, described in the chart in the RIT col-
umn, are retentive, thus they are stored.
• Once the alarm has been stored, the abnormal
conditions must be eliminated in order to be reset.
Also, the operator must press the RESET key or
send a special message via the serial interface.
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