Specifications

90
Sentry STS in REDUNDANT Mode
The reliable secondary source [AS] will
power the load only and exclusively
when the primary source (PS) fails, so
as to guarantee maximum redundancy
and quality of the power supply to the
loads.
Sentry STS in CROSS FEEDING Mode
The two sources power a number of
critical loads using the Sentry STS
configured in such a way as to make
one of the two power sources the
priority source (PS). In cases of power
faults or failure on one of the two
sources, the other one will be able to
supply power to all the loads
connected to the system.
Sentry STS in BACK UP Mode
Sentry STS powers a number of loads
using the priority source (PS). The
secondary source (AS) is formed by
independent and separate sources
which can supply standby power
should the priority source (PS) fail
suddenly.
The solution offered by AROS
guarantees maximum reliability and
ensures no break power supply in all
operating conditions thanks to the UGS
option that keeps the two systems A
and B perfectly synchronised.
The flexibility of the UGS system is able
to guarantee that the power sources
remain synchronised even when one of
the two systems is not AROS UPS
model but made by another
manufacturer or when the input
sources are not UPS’s.
UPS UPS
USER 1
[PS] [AS]
UPS UPS
USER 1
[PS] [AS]
USER 2
[PS] [AS]
UPS
USER 1
[PS] [AS]
USER 2
[PS] [AS]
Independent
separate lines
UPS1A
Battery Battery
Mains Mains
UPS2A
Bypass 1
System A
Load 1
UPS1B
Battery Battery
Mains Mains
UPS2B
Bypass 2
System B
Load 2
UGS
Sinchroniser
Static
Transfer
SWITCH
Load 3
Static
Transfer
SWITCH
Load 4