GE Industrial Solutions LP 33U Series 10 & 20 kVA Installation Guide - Manual (Page 30)

Modifications reserved Page 30/40
OPM_LPS_3UI_10K_20K_1US_V010.doc Installation Guide LP 33U Series 10 & 20 kVA / S1
3.9.5 RPA system - Control bus connection
WARNING !
This operation must be performed by trained personnel before the initial start-up
(ensure that the UPS installation is completely powered down).
Access to the RPA board
1 - Open the front door “A” of the cabinet.
2 - Remove the protection covers “B, C, D” fixed
with screws “F”.
F
F
F
B
C
D
Fig. 3.9.5-1 Access to the RPA board
NOTE !
When fixing again the protection
covers, make sure that the screws
“F” are as tight as possible since
they serve also as earth
connection.
LP33S_010-020_S5_RPA connection_GE_02GB
P16
J4
J3
UPS 1 UPS 2
P16
J3
J4
UPS 3
P16
J3
J4
P16
UPS 4
J4
J3
P2 P2 P2 P2
P15 P15 P15 P15
Fig. 3.9.5-2 Bus connection RPA parallel system
Bus connection RPA parallel system
Connect the control bus cable between the parallel units as indicated in the diagram Fig. 3.9.5-2.
Provide that the connectors J3 and J4 are properly fixed with the included screws.
NOTE !
The jumper JP1 - JP2 - JP3 must be
removed only on the intermediate
units, where the connectors J3 and J4
are both inserted.
Do not insert or remove J3 and J4
from the board “P16 - Connector
adapter RPA” when the parallel
system is operating.
LP33S_010-020_S5_RPA connection_03
J3
J4
JP2 JP1
JP3
P16
Fig. 3.9.5-3 Connection to Board P16