284 Rockwell Automation Publication 2198-UM002L-EN-P - October 2021
Chapter 9 Kinetix 5700 Safe Torque-off Function
Certification
The TÃœV Rheinland group has approved 2198-Dxxx-ERSx and
2198-Sxxx-ERSx inverters with hardwired and integrated safe torque-off for
use in safety-related applications up to ISO 13849-1 Performance Level e (PL e),
SIL CL 3 per IEC 61508, IEC 61800-5-2, and IEC 62061, in which removing the
motion producing power is considered to be the safe state.
For product certifications currently available from Rockwell Automation, go to
rok.auto/certifications
.
Important Safety Considerations
The system user is responsible for the following:
• Validation of any sensors or actuators connected to the system
• Completing a machine-level risk assessment
• Certification of the machine to the desired ISO 13849 performance level
or IEC 62061 SIL level
• Project management and proof testing in accordance with ISO 13849
Stop Category Definition
Stop Category 0 as defined in IEC 60204 or safe torque-off as defined by
IEC 61800-5-2 is achieved with immediate removal of motion producing power
to the actuator.
Performance Level (PL) and Safety Integrity Level (SIL)
For safety-related control systems, Performance Level (PL), according to
ISO 13849-1, and SIL levels, according to IEC 61508 and IEC 62061, include a
rating of the systems ability to perform its safety functions. All of the safety-
related components of the control system must be included in both a risk
assessment and the determination of the achieved levels.
Refer to the ISO 13849-1, IEC 61508, and IEC 62061 standards for complete
information on requirements for PL and SIL determination.
IMPORTANT
In the event of a malfunction, the most likely stop category is
Stop Category 0. When designing the machine application, timing and
distance must be considered for a coast to stop. For more information
regarding stop categories, refer to IEC 60204-1.
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