9.5 Safety Characteristic Data
European
directives
Machinery
Directive
(2006/42/EC)
EN ISO 13849-1
EN IEC 62061
EN IEC 61800-5-2
EMC Directive
(2004/108/EC)
EN 50011
EN 61000-6-3
EN 61800-3
Low Voltage
Directive
(2006/95/EC)
EN 50178
EN 61800-5-1
Safety
standards
Safety of
Machinery
EN ISO 13849-1
IEC 62061
IEC 60204-1
Functional
Safety
IEC 61508-1 to -7
IEC 61800-5-2
Safety
function
IEC 61800-5-2
IEC 60204-1
Safe Torque Off
(STO)
Stop Category
0
Safe Stop 1
(SS1)
Stop Category
1
Safely Limited
Speed (SLS)
Safety
performance
Safety Integrity
Level
SIL 2
SIL CL2
HFT (IEC 61508) Hardware Fault Tolerance = 1
Subsystem
Classification
Type B
Probability of
Dangerous
Failure per
Hour
PFH: 1,52 e-8
Probability of
Dangerous
Failure on
Demand
PFD: 1,33 e-3
Category
Cat 3
Performance
Level
PL d (cat 3)
Mean Time to
Dangerous
Failure of each
Channel
MTTFd: 245 years (High)
Average
Diagnostic
Coverage
DC
ave
: 86% (Low)
Safe Failure
Fraction
SFF: 90%
Proof Test
Interval
20 Years
Table 9.1 Safety Characteristic Data
The safety-related characteristic data are valid for all safety
functions.
All units used within a safety function must be considered
when calculating the safety characteristic data.
Technical Specifications
Operating Instructions
72
Danfoss A/S © Rev. 2014-02-11 All rights reserved.
MG34W302
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