Rockwell Automation 1606-XLSRED Power Supply Reference Manual - Manual (Page 18)

All parameters are specified at 24V, 2.5A, 230Vac input, 25ªC ambient and after a 5 minutes run-in time unless noted otherwise.
18 Rockwell Automation Publication 1606-RM009A-EN-P — February 2014
Bulletin 1606 Switched Mode Power Supplies
17.7. Example: Decoupling of Branches
Buffer energy supplied from a DC-UPS or buffer module is not wasted in “power branches.”
Please note:
Set output voltage of the power supply to a level that the buffer unit or DC-UPS will not start unexpected. Take the
voltage drop of the 1606-XLSRED into account.
Fig. 17-5 Wiring diagram, decoupling of buffered branches
Buffered
Load
e.g.
Controller
optional
I I I
L1
L2
PE
L3
Load
e.g. Motor
Buffer
Module
+ -
Failure
Monitor
1606-
XLSRED
Redundancy
Module
+ -
OUT
+ -
IN 1
+ -
IN 2
L1 L2 L3 PE
+ + - -
1606-XLS480EA
Power
Supply
Adj
Overload
DCok
24V,20A
Note: Use separate mains systems for each power supply whenever it is possible
17.8. Use in a Tightly Sealed Enclosure
When the redundancy module is installed in a tightly sealed enclosure, the temperature inside the enclosure will be
higher than outside. The inside temperature defines the ambient temperature for the redundancy module.
Results from such an installation:
Power supply is placed in the middle of the box, no other heat producer is inside the box.
Enclosure: Rittal Typ IP66 Box PK 9516 100, plastic, 110x180x165mm
Load: 24V, 16A; (=80%) load is placed outside the box
Input: 24Vdc
Temperature inside enclosure: 57.8°C (in the middle of the right side of the power supply with a distance of 2cm)
Temperature outside enclosure: 24.6°C
Temperature rise:
33.2K