YR2.DIODE

Y-Series

The example shows a cost effective solution to get redundant power for a PLC or controller system.

In many cases, two power supplies are used; one for the demanding loads and another one for the controls and

sensitive loads. The power supply for the demanding loads can be used as a redundant source to supply the controls.

Traditional approach:

Load

PS1

PLC

PS2

Load

PLC

PS1

PS2

YR2

Improved approach:

Fig. 17-4 Wiring diagram, redundancy for sensitive loads

Sensitive

Load

e.g.

Controller

optional

L N PE

+ +

- -

QS5.241

Power

Supply

Adj

Overload

DCok

24V,

5A

I

I

I

L1

L2

PE

L3

I

N

Heavy

Loads

e.g. Motors

L1 L2 L3 PE

+ +

- -

QT20.241

Power

Supply

Adj

Overload

DCok

24V,20A

YR2.Diode

Redundancy

Module

+

-

OUT

+

-

IN 1

+

-

IN 2

Failure

Monitor

Note: Use separate mains systems for each power supply whenever it is possible

Apr. 2014 / Rev. 1.4 DS-YR2.DIODE-EN

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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