Redundancy modules – Rockwell Automation 1606-XLE480EPC Power Supply Reference Manual User Manual
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Rockwell Automation Publication 1606-RM001B-EN-P - August 2013
Bulletin 1606 Switched Mode Power Supplies
22.2 Redundancy Modules
1606-XLSRED40HE – (2x 20A Inputs, 1x 40A output)
The redundancy modules in the HE-series are specially designed for power supplies, which feature the HiccupPLUS overload behavior. The1606-
XLSRED40HE is the preferred redundancy module for the 1606-XLE480EP power supply. It is equipped with two input channels, which are individually
decoupled by utilizing mosfet technology. Using mosfets instead of diodes reduces the heat generation and the voltage drop between input and
output. The1606-XLSRED40HE does not require an additional auxiliary voltage and is self-powered even in case of a short circuit across the output.
Due to the low power losses, the unit is very slender and only requires 36mm width on the DIN-rail.
1606-XLSRED40– (2x 20A Inputs, 1x 40A output)
The1606-XLSRED40 redundancy module is a unit, that is also suitable in combination with power supplies, which have a continuous current overload
behavior. Size and performance are the same as the1606-XLSRED40HE. The 1606-XLSRED40 is more complex than the 1606-XLSRED40HE units and
therefore higher in cost. The terminal arrangement of the 1606-XLSRED40 are different then the 1606-XLSRED40HE. The output terminal is located on
top and the input terminals are on the bottom of the unit in order for a better match to the power supplies of the XLS series that do not feature the
HiccupPLUS overload behavior.
1606-XLSREDS40HE – (1x 40A input, 1x 40A output)
The single channel redundancy modules in the HE-series are specially designed for power supplies, which feature the HiccupPLUS overload behavior.
The 1606-XLSREDS40HE is a 40A single channel redundancy module, which is equipped with a plug connector on the output. The plug connector allows
replacing the power supply or the redundancy module while the system is running. The plug connector avoids that the output wires can touch and
short the load circuit.
The 1606-XLSREDS40HE is very slender and only requires 46mm width on the DIN-rail. It also utilizes mosfet technology instead of diodes for low heat
generation and a minimal voltage drop between input and output. It does not require an additional auxiliary voltage and is self-powered even in case
of a short circuit across the output.
Typical 1+1 Redundant Configuration for 20 A with a dual
redundancy module.
Typical N+1 or 1+1 Redundant Configuration for 20 A with multiple 1606-
XLSREDS40HE redundancy modules.
24V
20A
Load
L
N
PE
Failure
Monitor
L N PE
24-28V 480W
Power
Supply
+ +
- -
24V 20A
DC-
OK
AC Input
Output
*)
Redundancy
Module
Input
1
Input
2
Output
+
-
+
-
+
-
L N PE
+ +
- -
24V 20A
DC-
OK
AC Input
Output
24-28V 480W
Power
Supply
I
I
*)
also possible
1606-XLSREDS40HE
1606-XLE480EP
1606-XLE480EP
1606-XLSRED40HE
L N PE
1606-XLE480EP
24-28V 480W
Power
Supply
+ +
- -
24V 20A
DC-
OK
AC Input
Output
1606-XLSREDS40HE
Redundancy
Module
+
-
Input
Output
+
-
Redundancy
Module
+
-
Input
Output
+
-
L
N
PE
I
I
24V
20A
Load
Failure
Monitor
L N PE
1606-XLE480EP
24-28V 480W
Power
Supply
+ +
- -
24V 20A
DC-
OK
AC Input
Output
1606-XLSREDS40HE