Reference Manual User guide

All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
10 Rockwell Automation Publication 1606-RM043A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
10. Lifetime Expectancy and MTBF
AC 100V AC 120V AC 230V
Lifetime expectancy
*)
146 000h
*)
152 000h
*)
168 000h
*)
at 48V, 5A and 40°C
413 000h
*)
430 000h
*)
475 000h
*)
at 48V, 5A and 25°C
65 000h 70 000h 87 000h at 48V, 10A and 40°C
184 000h
*)
198 000h
*)
246 000h
*)
at 48V, 10A and 25°C
38 000h 43 000h 60 000h at 48V, 12A and 40°C
107 000h
*)
122 000h
*)
170 000h
*)
at 48V, 12A and 25°C
MTBF
**)
SN 29500, IEC 61709 468 000h 484 000h 537 000h at 48V, 10A and 40°C
770 000h 796 000h 882 000h at 48V, 10A and 25°C
MTBF
**)
MIL HDBK 217F 254 000h 261 000h 290 000h at 48V, 10A and 40°C;
Ground Benign GB40
355 000h 361 000h 395 000h at 48V, 10A and 25°C;
Ground Benign GB25
56 000h 57 000h 64 000h at 48V, 10A and 40°C;
Ground Fixed GF40
75 000h 77 000h 86 000h at 48V, 10A and 25°C;
Ground Fixed GF25
*) The Lifetime expectancy shown in the table indicates the minimum operating hours (service life) and is determined by the lifetime
expectancy of the built-in electrolytic capacitors. Lifetime expectancy is specied in operational hours and is calculated according to the
capacitor’s manufacturer specication. The manufacturer of the electrolytic capacitors only guarantees a maximum life of up to 15 years
(131 400h). Any number exceeding this value is a calculated theoretical lifetime which can be used to compare devices.
**) MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates reliability of a
device. It is the statistical representation of the likelihood of a unit to fail and does not necessarily represent the life of a product.
The MTBF gure is a statistical representation of the likelihood of a device to fail. A MTBF gure of e.g. 1 000 000h means that
statistically one unit will fail every 100 hours if 10 000 units are installed in the eld. However, it cannot be determined if the failed unit
has been running for 50 000h or only for 100h.
11. Functional Diagram
Fig. 11-1 Functional diagram
+
+
-
-
Output
Over-
Voltage
Protection
PFC
Converter
Output
Voltage
Regulator
Power
Converter
Output
Filter
Output
Voltage
Monitor
Output
Power
Manager
Temper-
ature
Shut-
down
Input Fuse
Input Filter
Input Rectier
Active Inrush Limiter
V
OUT
L
N
DC-ok
Contact
DC-ok
LED
Single /
Parallel
DC-ok
Relay