Installation Guide Manual

3.9.3 Control bus cable location
WARNING !
This operation must be performed by trained personnel before the initial start-up.
ENSURE THAT THE UPS INSTALLATION IS COMPLETELY POWERED DOWN.
SGT5000_050-080_RPA control bus cable_01b
Access to the control bus
connection.
Q1
OFF
ON
Q2
ON
OFF
The control bus connection
between parallel units must be
made on the front of the
electronic module fitted behind
the front doors.
Fig. 3.9.3-1 View electronic module on intermediate unit
SGT5000_100-150_RPA control bus cable_02US
JB2
JB1
JA2
JA1
A
A
JA
JB
Next
p
arallel unit
Fig. 3.9.3-2 Front view electronic module on intermediate unit
Control bus cables connection.
• Plug the cables JA (1/2/3/4/5/6/7) and
JB (1/2/3/4/5/6/7) 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 (1/2/3/4/5/6/7) and
JB (1/2/3/4/5/6/7) to parallel bus
socket connecting the cable shield to
ground by means the cable clamps
“A“.
Modifications reserved Page 32/38
OPM_SGS_ISG_50K_80K_0US_V040.doc Installation Guide SG Series 50 & 80 kVA