GE Industrial Solutions SG Series 100 – 120 – 150 kVA Installation Guide - Manual (Page 32)

SGT
5000
_100
-1
50_R
P
A
con
trol
b
u
s
cable_03US
UPS 1
UPS 2
Next parallel
JB1
JA1
JB
JA
JA2 JA
JB2
JA1
JB1
JB
unit 3, 4, 5,
JB2
JA2
JA1
JB1
6, 7, 8
3
1
3 4
2
4
1 2
3 4
2 1
3 2 1
4
Q2
Q1
Q2
Q1
Fig. 3.11-3 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 inside the UPS cabinets in the
position illustrated in the drawing.
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 service engineer from of your
Service Center.
Modifications reserved Page 32/37
OPM_SGS_ISG_M10_M15_0US_V040.doc Installation Guide SG Series 100 –120 – 150 kVA