PIRD20.241 Datasheet, PDF (2/15 Pages) PULS GmbH – DC 12-28V, 20A, DUAL INPUT REDUNDANCY MODULE

PIANO-Series
PIRD20.241
DC 12-28V, 20A, DUAL INPUT REDUNDANCY MODULE
INDEX
Page
1. Intended Use .......................................................3
2. Installation Requirements...................................3
3. Input and Output Characteristics .......................4
4. Power Losses........................................................5
5. Lifetime Expectancy and MTBF...........................5
6. Terminals and Wiring..........................................6
7. Functional Diagram.............................................6
8. Front Side and User Elements.............................7
9. EMC......................................................................8
10. Environment ........................................................9
11. Protection Features ...........................................10
12. Safety Features ..................................................10
13. Dielectric Strength ............................................10
Page
14. Approvals .......................................................... 11
15. RoHS, REACH and Other Fulfilled Standards .. 11
16. Physical Dimensions and Weight ..................... 12
17. Application Notes............................................. 13
17.1. Using Only One Input Instead of Both
Channels ............................................................... 13
17.2. Recommendations for Redundancy.........13
17.3. Inductive and Capacitive Loads................14
17.4. Use in a Tightly Sealed Enclosure ............14
17.5. Example: Redundancy for Controls .........14
17.6. Example: 1+1 Redundancy up to 10A......15
17.7. Example: 1+1 Redundancy up to 20A......15
The information given in this document is correct to the best of our knowledge and experience at the time of publication. If not
expressly agreed otherwise, this information does not represent a warranty in the legal sense of the word. As the state of our
knowledge and experience is constantly changing, the information in this data sheet is subject to revision. We therefore kindly ask
you to always use the latest issue of this document (available under www.pulspower.com). No part of this document may be
reproduced or utilized in any form without our prior permission in writing.
TERMINOLOGY AND ABREVIATIONS
DC 24V
24Vdc
may
shall
should
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)
A figure with the unit (Vdc) at the end is a momentary figure without any additional
tolerances included.
A key word indicating flexibility of choice with no implied preference
A key word indicating a mandatory requirement
A key word indicating flexibility of choice with a strongly preferred implementation
1+1 Redundancy
N+1 Redundancy
Use of two identical power supplies in parallel to provide continued operation following most
failures in a single power supply. The two
N+1
1+1
power supply outputs should be isolated
Redundancy
Redundancy
from each other by utilizing diodes or
AC
AC
AC
AC
AC
AC
AC
AC
other switching arrangements.
DC
DC
DC
DC
DC
DC
DC
DC
E.g. two 10A power supplies are needed to
achieve a 10A redundant system.
IN 1 IN 2
IN 1 IN 2
IN 1 IN 2
IN 1 IN 2
Use of three or more identical power
supplies in parallel, which are allowed to
OUT
OUT
OUT
OUT
be connected in parallel for higher output
currents, to provide continued operation
-
-
following most failures in a single power
Load
Load
supply. All power supply outputs should be
isolated from each other by utilizing diodes or other switching arrangements. E.g.: To achieve
a 40A redundant system, five 10A power supplies are needed in a N+1 redundant system.
Ensure that the utilized power supplies are allowed to be connected in parallel to increase the
output power.
Sep. 2016 / Rev. 1.0 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
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