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2.2.3 When utility power fail but loads are normal
Above diagram shows how UPS works when utility power fails such as
blackout, brownout, under voltage, over voltage or frequency fault and UPS
has less than 100% load. UPS draws backup power from battery to invert to AC
power and continuously supplies to load.
2.2.4 Use maintenance bypass switch when UPS is malfunction (option)
Above diagram shows how system works when UPS is malfunction.
User is allow to temporary run the system by turning the manual bypass switch
from position A to B. All loads will get power supplied directly from utility line.
Then, contact us or our nearest service center.
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FRONT AND REAR PANEL
3.1.1
3.1.2
3.1.12
3.1.11
3.1.10
3.1.7
3.1.8
3.1.6
3.1.5
3.1.4
3.1.3
3.1.9
3.1.13
3.1 Front panel
3.1.1 POWER button: The button to turn on and turn off the UPS.
3.1.2 FUNC. button: The button to mute alarm sound or turn on the LCD's back light;
The back light will turn off automatically in 10 seconds after release this button.
3.1.3 LINE indicator: The Indicates when utility line normally.
3.1.4 RECTIFIER indicator: The indicator is displayed when utility line normally,It
supplies power to the UPS in rectifier section and supplies power to charge
battery and loads normally.
3.1.5 INVERTER indicator: The indicator is display when the load is consuming high
quality power from inverter section.
3.1.6 AUTO BYPASS indicator: The indicator is displayed when load is consuming
power from utility line. It is possible that you connected more than 100% load
to UPS or INVERTER section is malfunction.
3.1.7 MAINTENANCE BYPASS indicator: The indicator is displayed when
MAINTENANCE BYPASS SWITCH is at position B or maintenance bypass circuit
breaker is at position ON (for NBP-0811-1011 only). At this moment, power
that supplies to load is from utility line.
