General Information About Sinamics Safety Integrated; Supported Functions - Siemens SINAMICS S120 Function Manual

General information about SINAMICS Safety
Integrated
2.1

Supported functions

All of the Safety Integrated functions available under SINAMICS S120 are listed in this
chapter. A distinction is made between Safety Integrated Basic Functions and Safety
Integrated Extended Functions.
The functions listed here are in conformance with the IEC 61508 standard, SIL2, in the high
demand mode, Category 3 and Performance Level d (PL d) according to ISO 13849-1
(2006), as well as IEC 61800-5-2.
The following Safety Integrated functions (SI functions) are available:
● Safety Integrated basic functions
Safety Integrated
Function Manual, (FHS), 11/2009, 6SL3097-4AR00-0BP0
These functions are part of the standard scope of the drive and can be used without
requiring an additional license:
– Safe Torque Off (STO)
STO is a safety function that prevents the drive from restarting unexpectedly, in
accordance with EN 60204-1:2006 Section 5.4.
– Safe Stop 1 (SS1, time controlled)
Safe Stop 1 is based on the "Safe Torque Off" function. This means that a Category 1
stop in accordance with EN 60204-1:2006 can be implemented.
– Safe Brake Control (SBC)
The SBC function permits the safe control of a holding brake.
Note regarding Power/Motor Modules in chassis format:
For the chassis format, SBC is only supported by Power/Motor Modules with order
number ...3 or higher.
Note regarding Power/Motor Modules in blocksize format:
blocksize Power Modules additionally require a Safe Brake Relay for this function.
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