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6.3.2 Parallel installation and operation
How to install a new parallel UPS system:
1) Before installing a new parallel UPS system, the user needs to
prepare the input and output wires, the output breaker, and the
parallel cable.
2) Users should use the provided parallel cable with these units
wherever possible. If the provided cable is not suitable for the
needs of the user, a cable of the same or higher specification
should be used.
3) Remove the cover plate of the parallel port on the UPS,
connect each UPS one by one with the parallel cables, and
attach the Parallel port cover which is supplied in the
accessories.
4) Follow strictly the instructions in chapter 4 for the wiring of each
UPS.
5) Connect the output wires of each UPS to an output breaker
panel.
6) Disconnect the Jumper on JP1 and JP2 of the terminal block
first, and connect each output breaker to a main output breaker
and then to the loads.
7) Each UPS needs an independent battery pack.
8) Please refer to the wiring diagram (Fig 6-1).
9) The distance between the UPSs in parallel and the breaker
panel must be less than 20 meters. The difference between the
input and output wires of the UPSs must be less than 20%.
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