MGE UPS Systems 9 kVA Power Supply User Manual


 
Page 18 - 51033212EN/AC
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3. Operation
3.1 ON-LINE operating mode
This is the normal operating mode for the UPS.
Two possible cases:
LED is ON: AC input power is available. Power is drawn
from the AC-power source and supplied to the protected
equipment via the UPS.
LED is ON: AC input power is not available. Power is drawn
from the battery and supplied to the protected equipment.
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