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4.2 Operating UPS
Notice:
Please switch off the connected loads first before turning on the UPS, and switch on the loads one by
one after the UPS is turned on. Switch off all of the connected loads before turning off the UPS.
Notice:
Power on for the first time
1. Close the magnetothermic switch located upstream of the UPS.
2. Close the input and output switches and insert the battery fuses (if any) located on the back of the UPS’s
backpack.
4.2.1
T
URNING ON
UPS
WITH MAINS
Check that all connections are correct. Check the breaker of external battery pack is in “ON” position.
Set input breaker in “ON” position. At this time the fan begins to rotate. By pressing
button continuously for
more than 2 second, the buzzer will beep once, UPS starts to turn on.
A few seconds later, the UPS turns into Line mode. If the mains power is abnormal, the UPS will transfer to
Battery mode without output interruption of the UPS.
4.2.2
T
URNING ON
UPS
WITHOUT MAINS
Check that all connections are correct. Check the breaker of external battery pack is in “ON” position.
By pressing
button continuously for more than 2s, the buzzer will beep once, UPS starts to turn on.
A few seconds later, the UPS turns into Battery mode. If the mains power comes back, the UPS will transfer to
Line mode without output interruption of the UPS.
4.2.3
T
URNING OFF
UPS
WITH MAINS
To turn off the inverter of UPS press
button continuously for more than 3s and the buzzer beep once.
The UPS will turn into standby mode.
Cut off the mains power supply.
A few seconds later, LCD display shuts down.
4.2.4
T
URNING OFF
UPS
WITHOUT MAINS
To power off the UPS press
button continuously for more than 3s, and the buzzer beep once. The UPS will
cut off the output.
A few seconds later, LCD shuts down and no voltage is available from the UPS output.
4.2.5
T
RANSFER TO
B
YPASS
To transfer the UPS in internal bypass mode, press on/off button and test button at the same time for more
than 4 seconds.
To transfer the UPS back to normal mode, press on/off button and test button at the same time for more than 4
seconds.
4.2.6
T
RANSFER TO MAINTENANCE
B
YPASS
To transfer the UPS in maintenance bypass mode, switch on the maintenance switch. And then the UPS will
transfer to maintenance bypass mode. Switch off the input and output switch before doing maintenance on the
UPS.
To transfer the UPS back to normal mode, switch on the input and output switch and then switch off the
maintenance switch. Then turn on the UPS following “Turning on UPS” steps.
