Figure 2.6(B) Event Log; Figure 2.6(C) Battery Log; Figure 2.7 Main Screen (Battery Operation) - Mitsubishi Electric 9900D Series Owner Technical Manual

Figure 2.6(b) Event Log

2.3.2 INPUT POWER FAILURE (Figure 2.7)
During an Input Power Failure, the UPS inverter will be powered by the UPS batteries. The
following will be displayed on the main and measurement screen (Indication of battery
operation and remaining battery life).
The LCD will display a battery low voltage message when the battery capacity is near
depletion. The End of Battery Discharge announcement is displayed when the battery end
voltage is reached. At this time, the inverter will perform an electronic shutdown to prevent
battery loss of life from extreme deep discharge conditions. When the input power is restored,
the inverter will automatically restart to power the load, and the batteries will be
simultaneously recharged. The End of Battery announcement is shown at the bottom of the
screen.
9900D SERIES UPS
OWNERS / TECHNICAL MANUAL
Main Screen
Figure 2.7
(Battery Operation)
MITSUBISHI ELECTRIC 9900D SERIES UPS
Page Number:

Figure 2.6(c) Battery Log

2-6