14
1. If the utility power indicator blinks, it indicates that there are problems with
reversed polarity (L, N) of site wiring or disconnect with ground that may
result in shock hazard. UPS is still working in normal mode. If the battery
indicator is turn on at the same time, it shows that the voltage or frequency of
the utility power is out of the normal input range of the UPS. The UPS works
in battery mode.
4 Operation
2. If output overloaded, the load level indicators will be turned on and alarm
will beep twice every second. You should get rid of some unnecessary loads
one by one to decrease the loads connected to the UPS less than 100%
capacity of the UPS.
3. If the battery indicator blinks, it indicates that no battery is connected to
the UPS or battery voltage is too low. You should check if battery is properly
connected to the UPS. If the connection between battery and UPS is con-
firmed without any problem, it may be due to the defect or aging of the
battery, please refer to the “troubleshooting” in chapter 6 to solve the prob-
lem accordingly.
Note：Connection to the power generator should be made according to the
following steps:
Activate the power generator and wait until the operation is stable
before connecting the output of the power 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, the loads are connected one by
one.
It recommended that the capacity of the AC generator chosen should
double that of the UPS.
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