3. Operation and Operating mode
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4.Turn off the UPS with no utility power supplied (in Battery mode)
1) Press the “OFF” button continuously for more than one second to power off the
UPS.
2) When being powered off, the UPS will perform self-diagnosis, the Load/Battery
level LEDs will be turned on and then off one after another in ascending order.
Finally not any display is shown on the display panel and no voltage is available
from the UPS output.
Suggestions: Please turn off the connected loads before turning on the UPS and turn
on the loads one by one after the UPS is working in INV mode. Turn off all of the
connected loads before turning off the UPS.
3.2 Operating mode
1. Utility power mode
The display panel in utility power mode is shown in the following diagram. The utility
power LED and the INV LED are turned on. The load level LEDs will be turned on in
accordance with the load capacity connected.
1) If the battery LED is turned on and the utility power LED flashes, it indicates the
voltage or frequency of the utility power has exceeded the normal range, the UPS
operates in battery mode.
2) If output overloaded is over 105%, the load level LEDs will be turned on and alarm
will keep twice every second. You should get rid of some unnecessary loads one by
one to decrease the loads connected to the UPS less than 90% of its nominal power
capacity.
Note: Please follow the following steps to connect the generator:
Activate the generator and wait until the operation is stable before supplying power
of the generator to the UPS (be sure that the UPS is in idle mode). Then turn on the
Fig 3-1 The utility power mode
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