Recommendations for redundancy, Inductive and capacitive loads, Example: 1+1 redundancy up to 10a – Rockwell Automation 1606-XLSRED Power Supply Reference Manual User Manual

Page 15

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All parameters are specified at 24V, 2.5A, 230Vac input, 25ªC ambient and after a 5 minutes run-in time unless noted otherwise.

Rockwell Automation Publication 1606-RM009A-EN-P — February 2014

15

Bulletin 1606 Switched Mode Power Supplies

17. Application Notes

17.1. Recommendations for Redundancy

Recommendations for the configuration of redundant power systems:

Use separate input fuses for each power supply.

Use three-phase power supplies to gain functional safety if one phase fails.

When single-phase power supplies are utilized connect them to different phases or mains circuits if possible.

Set the power supply in “Parallel-Use” mode if this feature is available

It is desirable to set the output voltages of all power supplies to the same value.

17.2. Inductive and Capacitive Loads

The unit is designed to supply any kind of loads, including unlimited capacitive and inductive loads.

17.3. Example: 1+1 Redundancy up to 10A

1+1 Redundancy up to 10A requires two 10A power supplies and one 1606-XLSRED redundancy module.

Fig. 17-1 Wiring diagram, 1+1 Redundancy, 10A output current

L N PE

+ +

- -

1606-
XLS240EA

Power

Supply

Adj

Overload

DCok

24V,10A

Failure

Monitor

10A

Load

optional

I

I

L

N

PE

L N PE

+ +

- -

Power

Supply

Adj

Overload

DCok

24V,10A

1606-
XLSRED

Redundancy
Module

+

-

OUT

+

-

IN 1

+

-

IN 2

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

1606-
XLS240EA

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