PowerWalker Battery pack for VFI 10000P_RT LCD - Manual (Page 41)

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4) A few seconds later, the UPS turns into Line mode. If the utility
power is abnormal, the UPS will transfer to Battery mode
without output interruption of the UPS.
5.3.2 Turning on UPS without utility
1) Check all the connection is correct.
2) Pressing button continuously for more than 100ms, the
UPS would be powered on. At this time the fan begins to rotate,
LCD will show the “WELCOME” logo. Then LCD will show the
default UPS status summary screen after UPS finishing
self-test.
3) Pressing button continuously for more than 1 second, the
buzzer will beep for 1s, UPS starts to turn on.
4) A few seconds later, the UPS turns into Battery mode. If the
utility power comes back, the UPS will transfer to Line mode
without output interruption of the UPS.
5.3.3 Turning off UPS with utility
1) Pressing button continuously for more than 3 seconds and
the buzzer will beep 3s. After that, the UPS will turn into Bypass
mode at once.
2) When completing the above action, UPS output voltage is still
present. In order to cut off the UPS output, simply cut off the
utility power supply. A few seconds later, LCD display shuts
down and no output voltage is available from the UPS output
terminal.
5.3.4 Turning off UPS without utility
1) To power off the UPS by pressing button continuously for
more than 3 second, and the buzzer will beep for 3s. The UPS
will cut off the output at once.
2) A few seconds later, LCD shuts down and no voltage is
available from the UPS output.