Network Shutdown Module V3
User guide
Network Shutdown Module V3 – User Manual Page 43/53
• Communication failure Communication between Network Management Card and UPS (or NSM) has
failed
or [Communication between Network Management Card and UPS is restored]
7.8.2.2 Protection alarms
These alarms are mainly dedicated to trigger operating system shutdown actions:
• Shutdown criteria is reached One of the criteria for which the system should be shutdown has been
reached
• Redundancy lost The installation has no redundancy source available anymore
or [The installation has one or several redundancy source available]
• Protection lost The number of sources ensuring your installation protection is not sufficient
or [The number of sources ensuring your installation protection is sufficient]
7.8.2.3 Multi UPS Systems and Notification Alarms
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:
• The first alarm reception (from one of the UPSs) will trigger the system shutdown.
7.8.2.4 Multi UPS Systems and Protection Alarms
• 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.
• 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.
• 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.
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