PIRD20.241

PIANO-Series

Page

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

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.

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 10A power supplies are needed to

achieve a 10A redundant system.

N+1 Redundancy

Use of three or more identical power

supplies in parallel, which are allowed to

be connected in parallel for higher output

currents, 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 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.

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

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

www.pulspower.com Phone +49 89 9278 0

Germany

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