Shutdown
Eaton Network Card-MS User’s Guide P-164000100—Rev 1
www.eaton.com/powerquality
75
Figure 52 shows the shutdown sequence.
Figure 52. Shutdown Sequence
Table 27. Shutdown Criteria
Criteria
Description
Backup Time before Initiating the
Shutdown Procedure
(Shutdown After – Shutdown Timer)
W
hen the UPS switches to battery power, the card starts the Shutdown
Timer countdown and launches the system shutdown procedure at the end
of the countdown. Select this value carefully so that users have time to
complete their tasks and disconnect without exceeding battery backup time.
NOTE If this criterion is selected to initiate system shutdown, automatic
system reboot is not guaranteed when power is restored (for example,
power restoration if only this system was shut down).
Initiating the Shutdown Procedure
when the Battery Level is Lower
Than (If Capacity Under)
W
hen the card detects that the remaining backup time percentage is less
than the configured level, the shutdown sequence starts. By default, this
value is set at 20%.
NOTE The UPS already manages an equivalent parameter for the end of
backup pre-alarm. The card does not accept values less than that
programmed in the UPS. Check the UPS documentation.
Shutdown
W
hen Backup Time is
Less Than
W
hen the card detects that the percentage of backup time remaining is less
than the set value, the shutdown sequence starts.
Shutdown Duration
Duration (in seconds) required for the system protected by the protection
application to shut down.
The protection application transmits its own shutdown duration to the
Network Card-MS.
Based on these values (maximum shutdown duration of all subscribed
customer systems), the card sends the delayed shutdown order to the UPS.
Battery Capacity
Utility Failure
S
hutdown After
Start of the
Shutdown Sequence
Delay Before
Shutdown
UPS Shut Off
100%
If Remaining Time Under
0%
Card Parameters
UP
S
Parameters
Remaining Autonomy
S
hutdown Duration
S
hutdown If
Remaining
Capacity Under
