Schneider Electric 66124 User Manual
Network Management Card & Modbus/Jbus 34022321XT indice :AE Page 57/98
Network Management Teleservice Card
APC by Schneider Electric
www.apc.com
7.2 Shutdown criteria managed by the Network Management Card
During an extended power failure, three criteria may cause the server shutdown procedure to be initiated. If several criteria are selected, (See
page
Shutdown parameters), the first criterion encountered will launch the shutdown procedure.
Start of the shutdown sequence
Delay before
shutdown
Utility failure
Remaining autonomy
100%
Shutdown after :
If remaining time under
UPS may go
on bypass,
load is no more
protected
Card parameters
UPS parameters
Shutdown duration
Battery
autonomy
ratio
0%
Shutdown if
remainig time
ratio under
t
7.2.1 Backup time before initiating the shutdown procedure (Shutdown After - Shutdown
Timer)
When the UPS switches to battery, the Network Management Card starts the Shutdown Timer countdown and launches the system shutdown
procedure at the end of the countdown.
This value must be chosen so that users have time to complete their tasks and disconnect, without exceeding battery backup time.
Note 1:
The Network Shutdown Module can also manage its own Shutdown Timer (configurable in the Shutdown Module"set-up" menu of each Network
Shutdown Module) launched when the UPS switches to battery.
Note that if this criterion is selected to initiate system shutdown, automatic system reboot when power is restored is not guaranteed (e.g. power
restoration if only this system was shut down).