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2. Parallel installation
2. Parallel installation
1)
1) Users need
Users need to
to opt
opt a
a standard
standard 25-pin
25-pin communication cable,
communication cable,
which should have 25 cores, corresponding stitches and shield,
which should have 25 cores, corresponding stitches and shield,
as the UPS parallel cable. The length of the parallel cable is
as the UPS parallel cable. The length of the parallel cable is
appropriate to be less than 3 m.
appropriate to be less than 3 m.
2)
2) Strictly
Strictly follow
follow the
the stand-alone
stand-alone wiring
wiring requirement
requirement to
to perform
perform the
the
input wiring of each UPS.
input wiring of each UPS.
3)
3) Connect the
Connect the output
output wires of
wires of each
each UPS to
UPS to an
an output brea
output breaker
ker
panel.
panel.
4)
4) Disconnect the
Disconnect the Jumper
Jumper on
on JP1 and
JP1 and JP2 of
JP2 of the
the terminal block
terminal block
first, and connect each output breaker to a main output breaker
first, and connect each output breaker to a main output breaker
and then to the loads.
and then to the loads.
*
*
The requirement of the output wiring is as follows:
The requirement of the output wiring is as follows:
●
●
When the distance between the UPSs in parallel and the
When the distance between the UPSs in parallel and the
breaker panel is less than 20 meters, the difference between
breaker panel is less than 20 meters, the difference between
the wires of input & output of the UPSs is required to be less
the wires of input & output of the UPSs is required to be less
than 20%.
than 20%.
●
●
When the distance between the UPSs in parallel and the
When the distance between the UPSs in parallel and the
breaker panel is greater than 20 meters, the difference
breaker panel is greater than 20 meters, the difference
between the wires of input & output of the UPSs is required to
between the wires of input & output of the UPSs is required to
be less than 10%.
be less than 10%.