CertaUPS C500, Installation Manual, Page: 30 / 54

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UPS shutdown with mains power
To shut down the UPS with mains power:
Pressing the
button continuously for more than 3 seconds and the buzzer
will beep for 300ms. After that the UPS will transfer to bypass mode immediately.
When completing the above action UPS output voltage is still present. In order to
cut off the UPS output simply remove the mains power supply. A few seconds later
the LCD display will shut down and no output power is available from the UPS
output terminal.
UPS shutdown without mains power
To shut down the UPS without mains power:
Power off the UPS by pressing the
button continuously for more than 3
seconds, the buzzer will beep for 300ms at which point the UPS output will stop.
A few seconds later the LCD display will power off.
5.6 LCD operation
Except the default UPS status summary screen, the user can get more detailed
information about UPS current status, various measurements, previous event
records, UPS identification as well as change settings to fit the users own
requirements and optimize the function of UPS.
The main menu
In the default UPS status summary screen, when pressing
▲
or
▼
for less than 3
seconds, the UPS will display detailed information about alarm, battery and
system status.
In the default UPS status summary screen, when pressing ESC for more than 3
seconds, the display will enter main menu tree.
The main menu tree includes six branches:

UPS status

measurement

event log

control

identification menu

settings