Siemens SINUMERIK 840D sl Function Manual page 237

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Table of Contents

Function diagram of the "safety relay"

The description is provided in the following:

Three shutdown inputs E1 to E3

SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition

Time measurement –

rising to falling edge

If one of these inputs is set to 0, direct output A0 is set

to 0. Outputs A1 toA3 switch with the delay of timer

1–3. If one of these inputs is not used, then it is inter-

nally set to "1" as static signal.

One of these inputs must also be used to initiate test

operation of the safety relay (forced checking proce-

Connecting Sensors/Actuators

7.3 Safe programmable logic (SPL)

Sinamics s120