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2. Parallel installation2. 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 isas 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 thethe
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 breaoutput breakerker
panel.panel.
4) 4) Disconnect the Disconnect the Jumper Jumper on on JP1 and JP1 and JP2 of JP2 of the the terminal blockterminal block
first, and connect each output breaker to a main output breakerfirst, and connect each output breaker to a main output breaker
and then to the loads.and then to the loads.
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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 theWhen the distance between the UPSs in parallel and the
breaker panel is less than 20 meters, the difference betweenbreaker panel is less than 20 meters, the difference between
the wires of input & output of the UPSs is required to be lessthe 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 theWhen the distance between the UPSs in parallel and the
breaker panel is greater than 20 meters, the differencebreaker panel is greater than 20 meters, the difference
between the wires of input & output of the UPSs is required tobetween the wires of input & output of the UPSs is required to
be less than 10%.be less than 10%.
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