Recommendations for redundancy, Inductive and capacitive loads, Example: 1+1 redundancy up to 10a – Rockwell Automation 1606-XLSRED Power Supply Reference Manual User Manual
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All parameters are specified at 24V, 2.5A, 230Vac input, 25ªC ambient and after a 5 minutes run-in time unless noted otherwise.
Rockwell Automation Publication 1606-RM009A-EN-P — February 2014
15
Bulletin 1606 Switched Mode Power Supplies
17. Application Notes
17.1. Recommendations for Redundancy
Recommendations for the configuration of redundant power systems:
•
Use separate input fuses for each power supply.
•
Use three-phase power supplies to gain functional safety if one phase fails.
•
When single-phase power supplies are utilized connect them to different phases or mains circuits if possible.
•
Set the power supply in “Parallel-Use” mode if this feature is available
•
It is desirable to set the output voltages of all power supplies to the same value.
17.2. Inductive and Capacitive Loads
The unit is designed to supply any kind of loads, including unlimited capacitive and inductive loads.
17.3. Example: 1+1 Redundancy up to 10A
1+1 Redundancy up to 10A requires two 10A power supplies and one 1606-XLSRED redundancy module.
Fig. 17-1 Wiring diagram, 1+1 Redundancy, 10A output current
L N PE
+ +
- -
1606-
XLS240EA
Power
Supply
Adj
Overload
DCok
24V,10A
Failure
Monitor
10A
Load
optional
I
I
L
N
PE
L N PE
+ +
- -
Power
Supply
Adj
Overload
DCok
24V,10A
1606-
XLSRED
Redundancy
Module
+
-
OUT
+
-
IN 1
+
-
IN 2
Note: Use separate mains systems for each power supply whenever possible.
1606-
XLS240EA