General Information About Sinamics Safety Integrated; Supported Functions - Siemens Sinamics S110 Function Manual

8.2

General information about SINAMICS Safety Integrated

8.2.1

Supported functions

The functions mentioned here comply with IEC 61508, performance level d (PL d) to ISO
13849-1 (formerly EN 954-1), and IEC 61800-5-2.
The following Safety Integrated (SI) functions are available:
● Safety Integrated Basic Functions
● Safety Integrated Extended Functions (including the Basic Functions)
Drive functions
Function Manual, 10/2008, 6SL3097-4AB10-0BP0
These functions are part of the standard scope of the drive.
– 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.
A Safe Brake Relay is needed in addition for these functions.
Note
When a drive object for which Safety Integrated Extended Functions are enabled is
switched to "Park" mode, the Safety Integrated software responds by selecting STO
without generating a separate message.
– Safe Stop 1 (SS1, time and acceleration controlled)
The SS1 function 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 Stop 2 (SS2)
The SS2 function brakes the motor safely with a subsequent transition to "Safe
Operating Stop" (SOS).
– Safe Operating Stop (SOS)
"Safe Operating Stop" (SOS) protects against unintentional movements. The drive is
in closed-loop control mode and is not disconnected from the power supply.
– Safely Limited Speed (SLS)
The "Safely Limited Speed" (SLS) protects against excessively high drive speeds.
– Safe Speed Monitor (SSM)
The SSM function reliably monitors the speed limit and issues a safe output signal, but
without a response function.
8.2 General information about SINAMICS Safety Integrated
Safety Integrated Functions
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