178 Rockwell Automation Publication 2198-UM001I-EN-P - May 2019
Chapter 10 Kinetix 5500 Safe Torque-off - Integrated Safety
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 13849-1 performance
level or IEC 62061 SIL level
• Project management and proof testing performed in accordance with
ISO 13849
Safety Application Requirements
Safety application requirements include evaluating probability of failure rates
(PFH), system reaction time settings, and functional verification tests that
fulfill SIL 3 criteria. Refer to Probability of Dangerous Failure Per Hour
on
page 181
for more PFH information.
Creating, recording, and verifying the safety signature is also a required part of
the safety application development process. Safety signatures are created by the
safety controller. The safety signature consists of an identification number,
date, and time that uniquely identifies the safety portion of a project. This
includes all safety logic, data, and safety I/O configuration.
For safety system requirements, including information on the safety network
number (SNN), verifying the safety signature, and functional verification tests
refer to the GuardLogix 5570 Controller Systems Safety Reference Manual,
publication 1756-RM099
.
Category 3 Requirements According to ISO 13849
Safety-related parts are designed with these attributes:
• A single fault in any of these parts does not lead to the loss of the safety
function.
• A single fault is detected whenever reasonably practicable.
• Accumulation of undetected faults can lead to the loss of the safety
function and a failure to remove motion producing power from the
motor.
IMPORTANT You must read, understand, and fulfill the requirements detailed in
publication 1756-RM099
prior to operating a safety system that uses a
GuardLogix controller and 2198-Hxxx-ERS2 servo drive.
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