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Network Shutdown Module V3 – User Manual - 34 003 934 XU / AE Page 52/65
z Communication failure Communication between Network Management Card/Proxy and UPS (or
NSM) has failed
or [Communication between Network Management Card/Proxy and UPS is restored]
7.8.2.2 Protection alarms These alarms are mainly dedicated to trigger operating system shutdown actions:
z Shutdown criteria is reached One of the criteria for which the system should be shutdown has
been reached
z Redundancy lost The installation has no redundancy source available anymore
or [The installation has one or several redundancy source available]
z Protection lost The number of sources ensuring your installation protection is not sufficient
or [The number of sources ensuring your installation protection is sufficient]
With default configuration, the Network Shutdown Module considers that the “Notification Alarms” don’t trigger
the shutdown. (only the notification action is performed).
Anyway it is possible to configure a “Shutdown action” when a “Notification Alarm” event is received.
In this case:
z The first alarm reception (from one of the UPSs) will trigger the system shutdown.
z Shutdown criteria is reached.
With default configuration, the Network Shutdown Module triggers the shutdown when this event is
received.
Anyway it is possible to configure a “Shutdown” action when the following events are received.
z Redundancy lost alarm
If the user configures a “Shutdown action” when a “Redundancy lost” event is received, the shutdown will
occur when the installation has no redundant source available anymore.
The redundancy Level is configured in Configuration-> Power Devices screen
Following Alarms are taken into account for this alarm :
> UPS fault (internal fault or battery fault)
> Communication failure,
> Output on bypass,
> UPS Stopped.
z Protection Lost Alarm
If the user configures a “Shutdown action” when a “Protection Lost” event is received, the shutdown will
occur when the number of sources ensuring your installation protection is not sufficient.
> Only following UPS faults are taken into account (internal fault or battery fault).
> The By-Pass events (Automatic or Manual) for maintenance reasons are not taken into account.