Rockwell Automation 1606-XLS960E-3 Power Supply Reference Manual - Manual (Page 20)

All parameters are specified at 24V, 40A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
20 Rockwell Automation Publication 1606-RM005A-EN-P - February 2014
Bulletin 1606 Switched Mode Power Supplies
24. Accessories
24.1. 1606-XLC Wall Mounting Bracket
This bracket is used to mount specific
units onto a flat surface without a DIN rail.
24.2. 1606-XLSBUFFER24 Buffer Module
This buffer unit is a supplementary device for DC 24V power supplies. It delivers
power to bridge typical mains failures or
extends the hold-up time after turn-off of
the AC power. In times when the power
supply provides sufficient voltages, the
buffer unit stores energy in integrated
electrolytic capacitors. In case of mains
voltage fault, this energy is released again in a regulated process. One buffer
module can deliver 20A. To buffer the full output current of 40A, two buffer
modules are needed in parallel.
DC
Buffer
Unit(s)
Power
Supply
Load
AC
+
-
The buffer unit does not require any control wiring. It can be added in parallel to
the load circuit at any given point. Buffer units can be added in parallel to increase
the output ampacity or the hold-up time.
1606-XLSRED80
Redundancy
Module
+ - + -
Input
1
Input
2
Output
24V
40A
Load
Failure
Monitor
L1 L2 L3 PE + + - -
24V, 40A
Parallel Use
Single Use
DC-
OK
1606-XLS960E-3
24-28V 960W
Power Supply
L1 L2 L3 PE + + - -
24V, 40A
Parallel Use
Single Use
DC-
OK
1606-XLS960E-3
24-28V 960W
Power Supply
L1
L2
PE
I I I I I I
L3
24.3. 1606-XLSRED80 Redundancy Modules
The 1606-XLSRED80 redundancy module is a unit in the 1606-XLS
series that is also suitable in combination with power supplies;
the latter have a continuous current overload behavior.
The 1606-XLSRED80 is the preferred redundancy module for the
1606-XLS960E-3 power supply. It is equipped with two input
channels that are individually decoupled by using mosfet
technology. Using mosfets instead of diodes reduces the heat
generation and the voltage drop between input and output.
The 1606-XLSRED80 unit does not require 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 46mm width on the DIN rail. No space is needed
between the 1606-XLS power supply and the redundancy module.