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Diagram elements description
Sym
Description
bols
Main utility or
second utility
Rectifier: convert
AC power to DC
power.
Inverter: convert
DC power to AC
power.
Output of the
UPS.
Internal battery
charger.
Battery for the
backup power.
Battery level
Possible states
Green
Yellow
Powered
Out of nominal
range
Powered
In overload
HE mode
(ready)
Powered
In overload
HE mode
(ready)
Protected
In overload
Not protected
Charging
Floating
Powering the
End of life
load
> 50% and >
< 50% and >
low battery
low battery
threshold
threshold
(Settable on
(Settable on
the UPS)
the UPS)
Red
Black or white
Not present
Unknown
In short
Not powered
circuit
Unknown
In fault
In short
Not powered
circuit
Unknown
In fault
In short
Not powered
circuit
Unknown
In fault
Resting
Not powered
Unknown
In fault
Not used to
power the load
Not present
Unknown
< Below
low battery
threshold
(Settable
on the
UPS)
Contextual Help – 15
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