Siemens SINAMICS S150 - 2 General Information about SINAMICS Safety Integrated; Safety Integrated Functions

Safety Integrated
Function Manual, 05/2010, A5E03264275A
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General information about SINAMICS Safety
Integrated
2
2.1 Safety Integrated Functions
All of the Safety Integrated functions available under SINAMICS are listed in this chapter.
SINAMICS makes a distinction between Safety Integrated Basic Functions and Safety
Integrated Extended Functions.
The safety functions listed conform to Safety Integrity Level (SIL) 2 to DIN EN 61508, to
Category 3 to DIN EN ISO 13849-1 and to Performance Level (PL) d to
DIN EN ISO 13849-1.
The safety functions correspond to the functions STO, SS1 and SBC to DIN EN 61800-5-2.
The following Safety Integrated functions (SI functions) are available:
● Safety Integrated basic functions
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, 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 can be implemented.
– Safe Brake Control (SBC)
The SBC function permits the safe control of a holding brake.