Siel Green Point 6 20KVA, Руководство пользователя

Страница: 34 / 61

IV319 Rev.00
Data 2010-06-22
Pag. 34 di 118
6.2 Parallel Operation
1. Parallel Machine Maintenance
This UPS system has parallel machine function, if you want to add
single machine to parallel system, please follow operational process
of joining new machine; if because of cutting down load or attainting
UPS, and you must remove UPS, please follow operational
processes of removing parallel machine.
2. How to install a new parallel UPS system:
1) Before installing a new parallel UPS system, user need to
prepare the input and output wires, the output breaker, and the
parallel cable.
2) Turn off the input and output breakers of each UPS. Connect
the input wires, output wires and battery wires. Remove the
short connection wire between JP1 and JP2 on the terminal
block. Remove the maintenance cover board of each UPS and
set the maintenance switch from
³
UPS
´
to
³
BPS
´
3) Remove the cover board of the parallel port on the UPS,
connect each UPS one by one with the parallel cable, screw
the cover board of the parallel port back again.
4) Turn on the battery switch and the input breaker of the each
UPS, measure the difference voltage between the output line
wires of each UPS to check if the voltage difference between
them is less than 1V. If the difference is less than 1V, close the
output breaker. If the difference is more than 1V, check if the
wirings are abnormal.
5) Close the input breakers of all of the UPSs in the parallel
system. After all of the UPSs transfer to the Bypass mode,
screw the maintenance cover board back again.
6) Turn on each UPS in turn and observe their display. Make sure
that each UPS displays normal and all the UPSs transfer to the
INV mode together. Measure the voltage on the JP1 and JP2