Cattron Safe-E-Stop - Appendix I: Safety Performance Level

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Version 17
Safe-E-Stop™
User Guide
Appendix I: Safety Performance Level
The Safety performance level provided below was calculated with IEC 61508 and the equivalent ISO13849
performance level is shown in brackets.
FUNCTION TYPE
FUNCTION
SAFETY PERFORMANCE LEVEL IEC
61508
PROBABILITY OF FAILURE PER
HOUR ( PFH )
COMM LOSS
Automatic Safety Function
COMMUNICATION
LOSS
SIL3 (ISO13849 PLe)
PFH = 1.58248e-09
ESTOP
After manual activation
ESTOP
SIL3 (ISO13849 PLe)
PFH = 1.90565e-09
For detailed information on the failure modes, failure rates and safe failure fraction, please contact Cattron
division and ask for “parameter for failure rate determination.”
Due to continuous product improvement, the information provided in this document is subject to change without notice.
Cattron Support
For remote and communication control systems support, parts and repair, or technical support, visit us online at:
www.cattron.com/Contact
Safe-E-Stop™ is manufactured at the following location:
Cattron North America Inc., 655 N River Rd NW, Suite A, Warren, OH 44483
9M02-8978-A001-EN
Version 17