Dell UPS 10000R - Manual (Page 87)

87 Shutdown Criteria and Sequence |
Shutdown Criteria and Sequence
This chapter explains:
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Shutdown criteria managed by the card
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The shutdown sequence
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Load segments
Shutdown Criteria Managed by the Card
During an extended power failure, three criteria can cause the server shutdown procedure to be
initiated. If multiple criteria are selected, the first criterion encountered launches the shutdown
procedure. See Table 17 for criteria descriptions.
NOTE: See “Shutdown Parameters” on page 40 to view the shutdown parameters displayed on the Shutdown
Parameters Web page.
Table 17. Shutdown Criteria
Criteria Description
Backup Time before Initiating the
Shutdown Procedure
(Shutdown After – Shutdown
Timer) When 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. This value must be carefully selected 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 when power is restored is not guaranteed (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) When the card detects that the remaining backup time percentage is less
than the configured level, the shutdown sequence is started. 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 When Backup Time is
Less Than When the card detects that the percentage of backup time remaining is
less than the set value, the shutdown sequence is started.
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