Technical Data; Safety Engineering - Festo CMMO-ST Safe torque off Nstrucciones De Utilización

CMMO-ST Safe torque off
5

Technical data

5.1

Safety engineering

Safety data
Safety function
SIL
Category
PL
DCavg [%]
HFT
SFF [%]
PFH
T [Years
]
MTTFd [Years
]
Tab. 3 Technical data: Safety data
Safety information
Product type testing
Reliable component
Tab. 4 Technical data: Safety information
34
STO Safely switched off torque (STO, Safe Torque Off)
SIL 3 / SIL Reliability operational data (safety integrity level) per
CL 3 EN 61800-5-2, IEC 61508, EN 62061 und EN ISO 13849.
3 Grading in categories per EN ISO 13849-1
PL e Performance level per EN ISO 13849-1
90 Average diagnostics coverage per IEC 61508 and
EN 61800-5-2.
1 Hardware failure tolerance per IEC 61508.
99.8 "Safe Failure Fraction" per IEC 61508.
-10
1.3*10 Probability of dangerous failure per hour per IEC 61508.
20 Proof test interval
Operating life per EN ISO 13849-1
100 Mean time to dangerous failure per EN ISO 13849-1.
Mathematically 4500 years, restricted to 100 years
The functional safety engineering of the product has been
certified by an independent testing body in accordance with
Section 1.1.6, see EC-type examination certificate
www.festo.com
Yes
Festo – CMMO-ST Safe torque off – 1210a English