9
SELF-TEST
Automatic Self-Test The UPS performs a self-test automatically when turned on, and
every two weeks thereafter (by default). Refer to User Configur-
able Items for details on changing the default interval.
Automatic self-test eases maintenance requirements by eliminating
the need for periodic manual self-tests. During the self-test, the
UPS briefly operates the connected equipment on battery. If the
UPS passes the self-test, it returns to online operation.
If the UPS fails the self-test, the UPS lights the replace battery
LED and immediately returns to online operation. The con-
nected equipment is not affected by a failed test. Recharge the bat-
tery for 24 hours and perform another self-test. If it fails, the bat-
tery must be replaced.
Manual Self-Test Press and hold the button for a few seconds to initiate the self-
test.
UTILITY POWER
During normal operation, the UPS monitors the utility power and delivers power to the connected
equipment. If your system is experiencing e xcessive periods of high or low voltage, ha ve a certified
electrician check your facility for electrical problems. If the problem continues, contact the utility
company for further assistance.
Online
The online LED illuminates when the UPS is supplying utility
power to the connected equipment. If the LED is not lit, the UPS is
either not turned ON, or is supplying battery power. The UPS
sounds an alarm—four beeps every 30 seconds.
Utility Voltage
The UPS has a diagnostic feature that displays the utility voltage.
Plug the UPS into the normal utility power.
Press and hold the button to view the utility voltage bar graph
display. After a few seconds the five-LED display on the right of the
front panel shows the utility input voltage. Refer to the figure at left
for the voltage reading (values are not listed on the UPS).
The UPS starts a self-test as part of this procedure. The self-test does not affect
the voltage display.
The display indicates the voltage is between the displayed value on
the list and the next higher value. For example, with three LEDs lit
on the 120V model, the input voltage is between 115 and 134 VAC.
If no LEDs are lit and the UPS is plugged into a working, utility
power outlet, the line voltage is extremely low.
If all five LEDs are lit, the line voltage is extremely high and should
be checked by an electrician.