Power Supply PS1000-A6-24.20.R
Replacing Units while the System is Running
20
21
-1
1
25
16
Replacing Units while the System is Running
Figure 16.1 Replacing the power supply or redundancy module while the system is running
Replacing the Units
1.
Switch-off circuit breaker (1a).
2.
Remove plug (2a).
3.
Remove plug (3a). The plug prevents the cables from shorting.
4.
Change power supply.
5.
Put the plug (3a) back in.
6.
Put the plug (2a) back in.
7.
Turn-on the circuit breaker (1a).
8.
The circuit is redundant again.
9.
To replace the right power supply, repeat the process above using (1b), (2b) and (3b).
Load
I
I
L
N
PE
1a
L N PE
+
-
Power Supply
DC-OK
DC-
OK
Output 24V 20A
Input
L N PE
+
-
Power Supply
DC-OK
DC-
OK
Output 24V 20A
Input
1b
2a
3a
3b
2b
