Reference Manual
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a
P
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1. Intended Use .......................................................3
2. Installation Requirements...................................3
3. Input and Output Characteristics .......................4
4. Power Losses........................................................5
5. Lifetime Expectancy and MTBF...........................6
6. Terminals and Wiring..........................................7
7. Functional Diagram.............................................8
8. Front Side and User Elements.............................8
9. EMC......................................................................9
10. Environment ......................................................10
11. Protection Features ...........................................11
12. Safety Features ..................................................11
13. Certifications .................................................... 12
14. Physical Dimensions and Weight ..................... 13
15. Accessories ........................................................ 13
16. Application Notes ............................................. 14
16.1. Recommendations for Redundancy .........14
16.2. Inductive and Capacitive Loads ................14
16.3. Example: 1+1 Redundancy .......................14
16.4. Example: N+1 Redundancy .......................15
16.5. Example: Battery Back-up ........................15
16.6. Mounting Orientations ............................16
Terminology and Abbreviations
PE and
symbol
PE is the abbreviation for
P
rotective
E
arth and has the same meaning as the symbol
.
Earth, Ground
This document uses the term “earth” which is the same as the U.S. term “ground”.
T.b.d.
To be defined, value or description will follow later.
DC 24V
A figure displayed with the AC or DC before the value represents a nominal voltage with
standard tolerances (usually ±15%) included.
E.g.: DC 12V describes a 12V battery disregarding whether it is full (13.7V) or flat (10V)
24Vdc
A figure with the unit (Vdc) at the end is a momentary figure without any additional
tolerances included.
may
A key word indicating flexibility of choice with no implied preference
shall
A key word indicating a mandatory requirement
should
A key word indicating flexibility of choice with a strongly preferred implementation
1+1 Redundancy
Use of two identical power supplies in parallel to provide continued operation following most
failures in a single power supply. The two
power supply outputs should be isolated
from each other by utilizing diodes or
other switching arrangements.
E.g. two 2.5A power supplies are needed to
achieve a 2.5A redundant system.
N+1 Redundancy
Use of three or more identical power
supplies in parallel to provide continued
operation following most failures in a
single power supply. All power supply
outputs should be isolated from each other
by utilizing diodes or other switching
arrangements. E.g.: To achieve a 10A redundant system, five 2.5A power supplies are needed in
a N+1 redundant system.
N+1
Redundancy
1+1
Redundancy
AC
DC
AC
DC
AC
DC
AC
DC
AC
DC
AC
DC
IN 1
OUT
IN 2
IN 1
OUT
IN 2
IN 1
OUT
IN 2
Load
+
-
AC
DC
AC
DC
Load
+
-
IN 1
OUT
IN 2
Bulletin 1606 Switched Mode Power Supplies
Catalo
g
Num
b
er: 1
6
0
6
-XLSPRED
In
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Allen-Bradley HMIs
Содержание 1606-XLPRED
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