4.4.
Inverter is out of Order
4.4.1.
Output
short circuit under inverter mode
If output load is short circuited under inverter mode, the UPS will turn off the
output to prevent load from damage. The Fault LED lights up and the
buzzer sounds continuously. The UPS cannot turn on automatically after
short circuit condition is eliminated. You are required to re-start the UPS
manually. To re-start the UPS after short circuit condition is removed, you
Shall push the Main Switch on the front panel to "OFF" position first, then
to "ON" position again.
4.4.2.
Output Short circuit under bypass Mode
If output load is short circuited under bypass mode, the AC fuse will trip
open to prevent the output load from damage. You shall replace a new fuse
with same rating after the short circuit condition is eliminated.
4.5
. Inverter Over temperature
If the UPS experiences over-temperature when Utility is normal, it will
switch to bypass loop. The UPS will switch back to inverter mode when the
over-temperature situation is eliminated. If it happens when Utility is
abnormal, the buzzer will beep continuously and the Fault LED will light up.
The output of the UPS will also be cut off.
4.6.
Inverter Over-current and Inverter Output Voltage Out of Window
If the UPS inverter delivers over-current and out-of-window voltage to
output, the UPS is out of order. The UPS will switch to bypass loop when
Utility is normal. The Utility LED, Bypass LED and Fault LED will light up.
If these two conditions occur when Utility is abnormal, the UPS will turn off
the Output and the Fault LED will light up.
O/P
OUTPUT
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