Powerware Plus 80, Operation

Page: 17 / 160

I
I
I
I
I
I
I
I
I
I
I
I
Battery Mode
The UPS transfers to Battery mode automatically if a power outage occurs, or tithe
utility power does not conform to specified parameters. In Battery mode, the battery
provides emergency DC power, which the converts to AC power. When the UPS
switches to Battery mode, its alarm indications depend on the cause and on the battery
charge state. The length of time the system can operate in Battery mode depends on
loading and the battery supply capacity.
Figure 5 shows the path of electrical power through the UPS system when it is operating in
mode.
K4
When the battery voltage the lower limit of UPS operation capability,
to Bypass mode is available. If Bypass input is not available.
a “Shutdown warning occurs. The warning time load loss occurs
is 1 minute, depending on battery and the amount of loading.
tf incoming power to specified parameters, the UPS returns to
Normal mode and indications dear. However, the process of returning to
mode is not instantaneous. The gradually draws increasing power from the
incoming mode achieved.
Plus UPS