Rpa System - Control Bus Connection - GE Digital Energy LP 33 Operating Manual

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4.8.4

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).
E
Fig. 4.8.4-1 Access to the RPA board
UPS 1
P15
P2
P16
Bus connection RPA parallel system
Connect the control bus cable between the parallel units as indicated in the diagram Fig. 4.8.4-2.
Provide that the connectors J3 and J4 are properly fixed with the included screws.
JP1
P16
JP3
Fig. 4.8.4-3 Connection to Board P16
OPM_LPS_33E_10K_30K_4CN_V010.doc
C
D
B
F
F
F
A
UPS 2
P15
J4
P2
J3
P16
Fig. 4.8.4-2 Bus connection RPA parallel system
JP2
J4
J3
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".
3 - Remove the front panel protection cover "C"
by pulling it off.
NOTE !
When fixing again the protection
covers,
screws "F" are as tight as
possible since they serve also as
earth connection.
UPS 3
P15
J4
P2
J3
P16
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.
Operating Manual LP 33 / 10-20-30 kVA
33/82
make sure that the
UPS 4
P15
J4
P2
J3
P16
GE
J4
J3