Rockwell Automation 1606-XLP50E Power Supply Reference Manual - Manual (Page 9)

All parameters are specified at 24V, 2.1A, 230Vac input, 25ªC ambient and after a 5 minutes run-in time unless noted otherwise.
Rockwell Automation Publication 1606-RM034A-EN-P — March 2014 9
Bulletin 1606 Switched Mode Power Supplies
12. Functional Diagram
Fig. 12-1 Functional diagram
Input Fuse
&
Input Filter
L
N
Output Over-
Voltage
Protection
DC-OK
Transistor
Signal
Input
Rectifier
&
Inrush
Limiter
Power
Converter
Output
Voltage
Regulator
+
+
-
-
Output
Filter
V
OUT
DC
ok
DC-ok
Signal
13. Reliability
These units are extremely reliable and use only the highest quality materials. the number of critical components such
as electrolytic capacitors has been reduced.
AC 100V AC 120V AC 230V
Lifetime expectancy min. 34,000h 44,000h 54,000h 40ºC, 24V 2.1A
min. 112,000h 117,000h 111,000h 40ºC, 24V, 1.05A
min. 96,000h 125,000h 152,000h 25ºC, 24V, 2.1A
MTBF SN 29500, IEC 61709 2,383,000h 2,456,000h 2,613,000h 40°C, 24V, 2.1A
3,977,000h 4,100,000h 4,362,000h 25ºC, 24V, 2.1A
MTBF MIL HDBK 217F 1,021,000h 1,053,000h 1,120,000h 40ºC, 24V, 2.1A, Ground Benign GB40
1,370,000h 1,413,000h 1,503,000h 25ºC, 24V, 2.1A, Ground Benign GB25
The Lifetime expectancy shown in the table indicates the operating hours (service life) and is determined by the
lifetime expectancy of the built-in electrolytic capacitors.
Lifetime expectancy is specified in operational hours. Lifetime expectancy is calculated according to specifications
from the manufacturer of the capacitor. The prediction model allows a calculation of up to 15 years from shipping date.
MTBF
stands for Mean Time Between Failures; it is calculated according to statistical device failures and indicates
reliability of a device. It is the statistical representation of the likelihood of failure of a unit and does not necessarily
represent the life of a product.