Siel Green Point 6 20KVA, Руководство пользователя

Страница: 36 / 61

IV319 Rev.00
Data 2010-06-22
Pag. 36 di 118
7) Turn on the battery switch and the input breaker of the new
UPS; measure the difference voltage between the output line
wires of new UPS and the parallel system 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.
8) Remove the cover board of the parallel port located on the UPS
which has transferred to the maintenance bypass and push the
other end of the parallel cable into the slot of the parallel kit and
fasten the connector. Screw the cover board of the parallel port
back again.
9) Close the input breakers of all of the UPSs (including the new
UPS) in the parallel system. After all of the UPSs transfer to the
Bypass mode, screw the maintenance cover board back again.
10) 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
on the terminal block of each UPS to check if the voltage
difference between them is less than 1V. If the voltage
difference is more than 1V, the output relay of the UPS may not
be closed.
11) Measure the voltage of each JP2 on each UPS to check if the
voltage value is less than 5V (Generally 2V). If the difference is
more than 5V, that means the new UPS needs to be regulated
again or you need to check that the parallel cable of the parallel
kit are normal.
12) Turn off each UPS in turn and after all of them transfer to the
Bypass mode, remove the maintenance cover board of each
UPS and set the maintenance switch from
³
BPS
´
to
³
UPS
´
and
screw the maintenance cover board back again.
13) Turn on the UPSs in the Line mode to perform the parallel
operation.
Note: If the UPS is abnormal in the above debugging, please
perform maintenance according to the steps of removing a
stand-alone.