APC 1400 User Manual
8
5. Operation
5.1 Switch On — Switch Off
With the UPS plugged in, press the on/off/test button to supply power to the loads. The loads are
immediately powered while the UPS beeps and performs a self-test. See section 5.2. Press the but-
ton again to turn off power to the loads. It may be convenient to use the UPS as a master on/off
switch for the protected equipment.
Note: The UPS is on (the internal processor is operating) whenever it is plugged in and utility volt-
age is present. Even when switched off the UPS maintains the battery charge.
immediately powered while the UPS beeps and performs a self-test. See section 5.2. Press the but-
ton again to turn off power to the loads. It may be convenient to use the UPS as a master on/off
switch for the protected equipment.
Note: The UPS is on (the internal processor is operating) whenever it is plugged in and utility volt-
age is present. Even when switched off the UPS maintains the battery charge.
5.2 Self-test
Use the self-test to verify both the operation of the UPS and the condition of the battery. With the
UPS plugged in to normal utility power and turned on, activate the self-test by pressing and hold-
ing
UPS plugged in to normal utility power and turned on, activate the self-test by pressing and hold-
ing
the on/off/test button until the on-line LED flashes. This takes about 4 seconds.
Note:
By default the UPS performs a self-test at power up and once every two weeks.
During the self-test, the UPS briefly operates the loads on-battery (the on-battery LED comes on).
If the UPS passes the self-test, it returns to on-line operation. The on-battery LED goes off and the
on-line LED displays a steady green indication.
If the UPS fails the self-test it immediately returns to on-line operation and lights the replace bat-
tery LED. The loads are not affected. Recharge the battery overnight and perform the self-test
again. If the replace battery LED is still on, see section 10 for information on replacing the battery.
If the UPS passes the self-test, it returns to on-line operation. The on-battery LED goes off and the
on-line LED displays a steady green indication.
If the UPS fails the self-test it immediately returns to on-line operation and lights the replace bat-
tery LED. The loads are not affected. Recharge the battery overnight and perform the self-test
again. If the replace battery LED is still on, see section 10 for information on replacing the battery.
5.3 Shutdown Mode
If there is no utility power present, external devices (e. g., servers) connected to the computer in-
terface can command the UPS to shut down. This is normally done to preserve battery capacity
after the graceful shutdown of protected servers. In shutdown mode the UPS stops supplying
terface can command the UPS to shut down. This is normally done to preserve battery capacity
after the graceful shutdown of protected servers. In shutdown mode the UPS stops supplying