bypass indicator goes off and the inverter indicator shines, as shown
in Fig. 9(a) and Fig. 9(b), which means the UPS is operating in
Normal mode.
FAULT
LINE
BATTERY
BYPASS
INVERT
BATTERY
LOAD
Fig. 9(a) LED Display of 1kVA UPS in Normal Mode
OFF
ON SILENCE
FAULT
LINE
BATTERY BYPASS INVERT
BATTERY
LOAD
Fig. 9(b) LED Display of 2kVA/3kVA UPS in Normal Mode
24 Chapter 3 Operation
E1-20010915-C-1.0