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1600EP Series Instruction Manual
Only if the UPS is instructed to enter its online (normal) mode, will the UPS attempt transfer into such
operation mode. To enter the normal mode, the RUN key is pressed or the AUTO RUN has been congured
to YES (AUTO RUN setup is described in the Data Screen Settings actions on pages 33 - 38. If either
condition exists, the following screen will appear:
Shortly after transfer into the UPS online (normal) mode, the UPS will automatically begin a battery test if
the setting is enabled (see page 35). This test ensures a healthy battery system is available should it be
necessary to support the load. During the test, the LCD reports the current battery voltage as a percent
of its expected value at full charge. This gure will drop throughout the test, as the battery voltage is
intentionally lowered to test performance. The test lasts for about 10 seconds, during which the following
screen appears:
Once the battery test has concluded, the LCD will return to display of the current UPS operation mode
and percent load. It should appear as follows:
UPS OPERATION
LOAD ###%
BATTERY TEST
BAT VOLTAGE ###%
UPS OPERATION
LOAD ###%