Always
O
n UPS Systems
M0704_NX_Series_Service_Manual V2.17 2012-06-12
80
CNT2
CNA11
CNB6
CNA7
CNT3
G
CNT4
R
CNT3
CNT4
R G
CNT3
CNT
5
CNT
5
CNA4
C
NT
1
CNA10
CNA9
CNT2
CNT
1
CNT2
CNT
1
CNA8
CNC3
CNC4
CNC1
CNB2
CNB1
CNT4
G
R
CNT
5
RS232
RS485
3R
CNR1
C
NA
1
CNR5
CNR4
CNA
5
CNA
2
RELAY INTERFACE
CNR7
MIMIC PANEL
LCD PANEL
& SWITCHES
LED PANEL
WARNING
CNB
5
CNB7
& BEEPER
LED PANEL
STATUS
C
NB
6
MODULE
TO S.S.
BLU
WHT
RED
TO INV.
3B
3C
3A
3T
TO REC.
MODULE
RECTIFIER CONTROL
POWER SUPPLY
MAIN CONTROL
INVERTER PHASE
CONTROL
(R PHASE)
3T
INVERTER PHASE
CONTROL
(S PHASE)
3T
INVERTER PHASE
CONTROL
(T PHASE)
MODULE
COMMUNICATIONS
INTERFACE
R
R
G R
R
R
R
G
R G
R
Y
G
R
G
R
Figure 31.4
Front view of system with door
open and PCB Module door open