American Power Conversion 100 VAC - Manual (Page 14)

990-7096 Rev. 2 10
returns to on-line operation and lights the replace battery LED. The connected equipment is not
affected by a failed test. Recharge the battery for 24 hours and perform another self-test. If it fails,
the battery must be replaced. See Replacing the Battery, page 16, for details.
Automatic Self-Test
The UPS performs a self-test automatically when turned on, and every two weeks thereafter (by
default). Automatic self-test eases maintenance requirements by eliminating the need for periodic
manual self-tests.
Manual Self-Test
Press and hold the on button (on the front panel) for a few seconds before the self-test will begin.
Utility Power
During normal operation, the UPS monitors the utility power and delivers power to the connected
equipment. If your system is experiencing excessive periods of high or low voltage, have a
certified electrician check your facility for electrical problems. If the problem continues, contact
the utility company for further assistance.
On-line Indicator
The on-line indicator illuminates when the UPS is supplying utility power to the connected
equipment. If the indicator is not lit, the UPS is supplying battery power and the UPS will sound an
alarm, four beeps every 30 seconds.
Utility Voltage Bar Graph
119
109
100
91
81 This UPS has a diagnostic feature that displays the utility voltage. With the UPS plugged into the
normal utility power, press and hold the on button to see the utility voltage bar graph display.
After a few seconds the 5-LED display on the right of the front panel shows the utility input
voltage. Refer to the figure to the left for the voltage reading (values are not listed on the UPS).
The display indicates that the voltage is between the highest LED lit and the next higher value.
For example, with three LEDs lit, the input voltage is between 91 and 109 Vac. If no LEDs come
on and the UPS is plugged into a working AC power outlet, the line voltage is extremely low. If
all five LEDs come on, the line voltage is extremely high and should be checked by an electrician.
The UPS starts a self-test as part of this procedure. The self-test does not affect the
voltage display.
Voltage Trim
This LED comes on to indicate that the UPS is compensating for a high utility voltage.
Voltage Boost
This LED comes on to indicate that the UPS is compensating for a low utility voltage.