5 990-1062, Revision 1 04/01
3: OPERATION
SMART-UPS FRONT PANEL
O
PERATION
The ON and OFF buttons are used to power the UPS and act as master controls for the connected equipment. Make sure con-
nected equipment is switched to the ON position. The UPS remains on as long as it is attached to utility power.
Power On
Press and release the button labeled, TEST, to supply power to the UPS and connected equip-
ment. The equipment is immediately powered and the UPS performs a self-test.
Power Off
Press and release the button labeled, 0, to turn off power to the UPS and connected equipment.
Load
The five-LED display on the left of the front panel shows the percentage of available power used
by the connected equipment (load). For example, if three LEDs are lit, the connected load is
drawing between 50% and 67% of the UPS capacity. If all five LEDs are lit, the connected load is
drawing between 85% and 100% of capacity. Thoroughly test your entire system to make sure
that the UPS will not become overloaded. In the graphic to the left, the load capacity threshold is
listed next to the LED (values are not listed on the UPS).
The charger maintains battery charge when the UPS is plugged in and utility voltage is present.
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 Configurable 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 re-
turns to on-line operation. 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.
Manual Self-Test
Press and hold the button for a few seconds to initiate the self-test.
U
TILITY 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.
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