Critical Power
Modifications reserved
Page 40/46
GE_UPS_OPM_SGS_ISG_10K_40K_0US_V070.docx
Installation Guide
SG Series 10-20-30-40 UL S
Fig. 3.9.3-3 Control Bus cable routing and connection
Control bus cables routing
Place and fix the cables
JA-1/2/3/4/5/6/7
and
JB-1/2/3/4/5/6/7
with the appropriate clamps inside
the UPS cabinets in the position shown in the drawing
Fig 3.9.3-1
.
Pay attention to the fact, that routing of cables shall allow the removal of the protection covers
“
A
”
.
NOTE !
Pay attention when cabling and routing the bus cables
JA
and
JB
inside the UPS
cabinet.
In case one unit should be removed from the parallel system, the bus cables
JA
and
JB
must be removed from the cabinet without disconnecting them from the metal
plate where the sockets
JA
and
JB
are located
.
For reliability reasons the cables
JA-1/2/3/4/5/6/7
and
JB-1/2/3/4/5/6/7
connecting the units should
be run in separated protected conduits (as indicated in
Fig. 3.9.3-3)
separated from the power
cables.
It is important that the cable
JA
must be the same length as cable
JB
.
WARNING !
Connection and commissioning of an additional UPS to an existing parallel system,
must be performed by a GE SERVICE ENGINEER from of your
Service Center
.
S
GT
5
0
0
0
_
0
3
0
-0
4
0
_
R
P
A
c
o
n
tr
ol
bu
s
cab
le
_0
2U
S
Next parallel
unit 3, 4, 5, 6, 7
, 8
JB2
JA2
UPS 1
JA1
JB1
JA1
JB1
JB
JA
JB1
JB2
JB
JA
JA2
JA1
JA2
UPS 2
Q2
Q1
OFF
ON
OFF
ON
JB2
A
A
ON
OFF
Q1
Q2
ON
OFF