Proline UPS T1000, User Manual

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11. Operating mode
11.1 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, 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 UPS according to the start-up procedure.
After the UPS is turned on, then the loads can be connected to the UPS
one by one.
The power capacity of the AC generator should be at least twice of the
UPS capacity.
11.2 Battery mode
The display panel in battery mode is shown in the following diagram Fig.15.2. The
battery LED and the INV LED are turned on. The displayed number of the battery
level LEDs will be turned on in accordance with the battery capacity. Note that the
load level LEDs in utility power mode will indicate the level of the battery capacity in
battery mode instead.
1) When the UPS is running in battery mode, the buzzer beeps once every 4
seconds. If the “ON” button on the front panel is pressed for more than 1 second
Fig 15.1 The utility power mode