Safety Integrated basic functions 9.1 General information

Switch-off signal paths

Two independent switch-off signal paths are available. All switch-off signal paths are low active, thereby ensuring that the system is always switched to a safe state if a component fails or in the event of an open circuit.

If a fault is discovered in the switch-off signal paths, the "Safe Torque Off" function is activated and a system restart inhibited.

Monitoring cycle

The safety-relevant drive functions are executed cyclically in the monitoring clock cycle.

The safety monitoring clock cycle lasts a minimum of 4 ms. Increasing the basic DRIVE- CLiQ sampling time (p0110) also increases the safety monitoring clock cycle.

Crosswise data comparison

A cyclic cross-check of the safety-related data in the two monitoring channels is carried out. If any data is inconsistent, a stop response is triggered with any Safety function.

Parameter overview (see SINAMICS S List Manual)

r9780 SI monitoring clock cycle (Control Unit)

r9880 SI monitoring clock cycle (Motor Module)

Comparison of function names

Table 9-1

Comparison of safety function names old <-> new

 

 

 

 

 

 

old

 

 

new according to IEC 61800-5-2

Abbreviation

 

Name

New abbreviation

New name

SH

 

Safe standstill

STO

Safe Torque Off

SGA

 

Safety-related output

F-DO

Failsafe Digital Output

SGE

 

Safety-related input

F-DI

Failsafe Digital Input

9.1.2Supported functions

Supported functions:

The functions mentioned here are in compliance with IEC 61800-5-2.

The following Safety Integrated (SI) functions are available:

Safety Integrated basic functions

These functions are part of the standard scope of the drive.

Drive Functions

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Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4

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Efficient Networks S120 manual Supported functions