Siemens SINAMICS G220 - PFH Values; EMERGENCY off and EMERGENCY STOP

The Safety Integrated Functions correspond to the functions according toIEC 61800‑5‑2 and
IEC61800‑5‑3.
The individual Safety Integrated components have the following certi󹪝cations:
Table 14-88 Certi󹪝cations for the converter Safety Integrated component
Converter SIL PL Category
Control via PROFIsafe SIL 3 PL e Category 4
Control via F-DI SIL 3 PL e Category 3 or 4
1)
Stop functions STO, SS1 SIL 3 PL e Category 4
Safe Motor Temperature (SMT) SIL 2 PL d Category 3
Motion monitoring functions SLS, SDI, SSM SIL 3 PL e Category 3
1)
Depending on the parameterized self-test of the fail-safe digital inputs
14.12.2 PFH values
Description
The probability of failure for Safety Integrated Functions must be speci󹪝ed in the form of a PFH
value (probability of failure per hour) according to IEC 61800-5-2, IEC62061 andEN
ISO 13849-1. The PFH value of a Safety Integrated Function depends on the safety concept of the
converter and its hardware con󹪝guration, as well as on the PFH values of other components used
for this Safety Integrated Function.
More information
The PFH values can be found under: PFH values (https://
support.industry.siemens.com/cs/ww/en/view/76254308)
You can map the PFH values of all Safety Integrated components
from Siemens using the "Safety evaluation" function in the TIA selection
tool: Safety evaluation (https://new.siemens.com/global/en/products/automation/topic-areas/
safety-integrated/factory-automation/support/tia-safety-evaluation-tool.html)
14.12.3 EMERGENCY OFF and EMERGENCY STOP
Overview
In plants, systems and machines a distinction must be made between EMERGENCY OFF and
EMERGENCY STOP.
The Safe Torque O󹪜 (STO) and Safe Stop 1 (SS1) Safety Integrated Functions are suitable for
implementing an EMERGENCY STOP, but are not suitable for implementing an EMERGENCY
OFF.
Functions
14.12Safety Integrated
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB 657