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G
E
I
L
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AMATRONIC
LECTRONIC
NDUSTRIES
TD
H
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:
OW AUTO
SHUTDOWN WORKS
In the event of an ac power mains failure, the Power+ SA sends a notification to the IP
addresses defined in the PC notification and shutdown screen. This generates a pop-up
message on the computer screen advising of the ac fail condition, and starts a countdown.
The countdown for each computer lasts for the number of minutes specified in the "Ac fail
delay" field. If this countdown is exhausted before ac power returns, the Shutdown Agent
saves and closes any open datasets on the computer and then shuts the computer down.
If during the countdown, the Power+ SA battery falls below a preset voltage (the low-battery
voltage threshold, defined via the Power+ SA controller), the Power+ SA notifies the defined
computers of the low-battery condition. This starts another countdown, that lasts for the
number of seconds defined in the "Low battery delay" field and also cancels any other active
shutdown countdown. When this latest countdown is exhausted, the Shutdown Agent saves
and closes any open datasets on the computer and then shuts the computer down. This
takes place even if the "Ac fail delay" countdown was not yet finished.
POWER + SA: 20, 30 and 40 kVA, Release 2.1
143
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