GE Industrial Solutions SG Series 400 & 500 Installation Guide - Manual (Page 35)

3.9.3 Control bus cable location
WARNING !
This operation must be performed by QUALIFIED SERVICE PERSONNEL ONLY before
the initial start-up.
ENSURE THAT THE UPS INSTALLATION IS COMPLETELY POWERED DOWN.
SGS_400-500_S2_R
PA control bus cab
le_01US
Q1 0 OFF
I O N
Q2 0 OFF
I O
N
Next Parallel Unit
17 16 4 3 15 14 5 2
13 1 12 10 20 19 9 8 21 7
18 6 11 22
Fig. 3.9.3-1 View electronic module on intermediate unit
Access to the control bus
connection.
The control bus connection
between parallel units must be
made on the electronic module
(P34 – Bus Interface) situated at
the inside of the UPS door.
Next parallel unit
JA
SGSU_400
-500_S2_
RPA contr
ol bus cab
le_02US
A
JA1
JA2
JB
B
JA1
JA2
Fig. 3.9.3-2 Front view electronic module on intermediate unit
Control bus cables connection.
• Plug the cables JA
(1/2/3/4/5) and JB
(1/2/3/4/5) onto the RJ
connectors JA and JB
located on parallel bus PCB
“P34 – Bus Interface” (going
to “P13 – RPA Board” J52(A)
and J62(B).
• Fix both cables JA
(1/2/3/4/5) and JB
(1/2/3/4/5) to parallel bus
socket connecting the cable
shield to ground by means
the cable clamps “A“.
Modifications reserved Page 35/41
OPM_SGS_ISG_M40_M50_2US_V021.doc User Manual SG Series 400 & 500 UL S2