ABB Advant Controller 450 - Figure 4-17. Configuration Examples of Redundant Power Supplies

Advant Controller 450 Product Guide
Chapter 4 Hardware Components
4-14 3BSE 015 953R201 Rev B
Figure 4-17. Configuration examples of redundant power supplies
Unstabilized
power supply,
or d.c./d.c.
converter
Unstabilized
power supply
or d.c./d.c.
converter
+24 V
Power
supply A
Power
supply B
Load
Power
switch
Power
switch
Voltage
Regulator
SR511
Voltage
Regulator
SR511
A
B
Load
Voting
unit
SS110
Load
Voltage
Regulator
DSSR 170
Voltage
Regulator
DSSR 170
Voltage
Regulator
DSSR 170
Voting
unit
DSSS 171
+24 V
S100 I/O subrack
AC 450 subrack
24 V to connection units, modems e
Unstabilized
power supply,
or d.c./d.c.
converter
Unstabilized
power supply
or d.c./d.c.
converter
+24 V
Power
switch
Power
switch
A
B
Load
Diode
unit
DSSS 170
+24 V
Isolated 24 V for sensors
Power
supply A
Power
supply B