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Schneider Electric 66123 User Manual

Page 57

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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).

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