Pilz PNOZ m EF 16DI User Manual download pdf (Page 10)

Functiondescription

OperatingManualPNOZmEF16DI

1002703EN02

4 Functiondescription

4.1 Integratedprotectionmechanisms

Therelayconformstothefollowingsafetycriteria:

}

Thecircuitisredundantwithbuiltinselfmonitoring.

}

Thesafetyfunctionremainseffectiveinthecaseofacomponentfailure.

4.2 Functions

Theexpansionmoduleprovidesadditionalinputs.

Thefunctionoftheinputsonthesafetysystemdependsonthesafetycircuitcreatedusing

thePNOZmultiConfigurator.Achipcardisusedtodownloadthesafetycircuittothebase

unit.Thebaseunithas2microcontrollersthatmonitoreachother.Theyevaluatetheinput

circuitsonthebaseunitandexpansionmodulesandswitchtheoutputsonthebaseunit

andexpansionmodulesaccordingly.

TheonlinehelponthePNOZmultiConfiguratorcontainsdescriptionsoftheoperating

modesandallthefunctionsofthePNOZmultisafetysystem,plusconnectionexamples.

4.3 Systemreactiontime

Calculationofthemaximumreactiontimebetweenaninputswitchingoffandalinkedout

putinthesystemswitchingoffisdescribedinthedocument"SystemExpansion".

4.4 Blockdiagram

Input

I4I1

I0 I5I3I2

Interface

to rpevious

module

Interface

to next

module

I12I9

I15

I8 I13I11I10

I14

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 16 17 18

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Pilz PNOZ m EF 16DI User Manual Page 10