ABB Symphony Harmony Series, Instructions Manual

Page: 51 / 116

2 - 8 WBPEEUI210509A1
Description
connectors on the DC power bus bar. It monitors each of these
voltages and generates a PFI on failure of any of them. Moni-
toring of +15 VDC and -15 VDC may be disabled by a jumper.
Figure
2-7 shows a view of the DC bus monitoring assembly.
Figure 2-7. DC Bus Monitoring Assembly
T04461B
5V
5V R ET
ST
AT
US
O
U
T
12
5V
+1
5V
48
V
48
V
/1
25
V
R
T
N
15
V
R
T
N
–
15
V
25.5V R ET
25.5V
R EA R V IE W
J1
J2
D C BU S M O NITO R IN G
A S S E M B LY
P OW E R
C H A S S IS
R E D
+5 VD C
+15 VD C
– 1 5 VD C
M C O M (+5 V D C RTN )
PFI
O R N
BLK
W H T
YEL