5. Operation
5.1 Switch on
With the UPS plugged in, turn on MAIN SWITCH (on rear panel) and press
ON/OFF/TEST/SILENCE button (on front panel) less than 2 seconds to switch the
UPS on. The UPS will perform self-testing each time when it is switched on.
Note: When switched off the UPS maintains the battery charge and will respond
to commands received through the computer interface port.
5.2 Switch off
By pressing and holding ON/OFF/TEST/SILENCE button until the "LINE NORMAL" or
"BACK UP" LED off. To save battery power, turn off MAIN SWITCH (on rear panel) if
you leave the UPS along over one day.
5.3 Self-test
Use the self-test to verify both the operation of the UPS and the condition of the
battery. In normal utility power, push the ON/OFF/TEST/SILENCE button less than 1
second and UPS performs a self-test function. During the self-test, the UPS operates
a back up mode.
Note: 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
does off and the on-line LED goes on steady.
If the UPS fails the self-test it immediately returns to on-line operation and lights
the replace battery LED. The loads are not affected. Recharge the battery
overnight and perform the self-test again. If the replace battery LED is still on,
ask our nearest dealer to replace battery.
5.4 Silence
In "BACK UP" mode, push ON/OFF/TEST/SILENCE less than 1 second to silence
the audible alarm. (The function is void when under condition of "LOW BATTERY" or
"OVERLOAD")
Note: At back-up mode, UPS can be automatically turned off if none of the
connected loads is operating.
5.5 Cold start
When the UPS is off and there is no utility power, use the cold start feature to apply
power to the loads from UPS's battery. Press the ON/TEST button (see section 3.1
for location of the indicator on the front panel) until the UPS beeps.
5.6 Shutdown mode
In shutdown mode the UPS stops supplying power to the load, waiting for return of
utility power. If there is no utility power present, external devices (e.g., servers)
connected to the computer interface can command the UPS to shutdown. This is
normally done to preserve battery capacity after the graceful shutdown of protected
servers. The UPS will scroll the front panel indicators sequentially in shutdown mode.
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