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Appendix: Safe Torque Off (STO) 207
Abbreviations
Abbreviation
Reference
Description
CCF
EN ISO 13849-1
Common Cause Failure (%)
DC
EN ISO 13849-1
Diagnostic Coverage
FIT
EN 61508
Failure In Time: 1 × 10
-9
hours
HFT
EN 61508
Hardware Fault Tolerance
IGBT
Insulated-gate bipolar transistor: The electrical
components that drive the motor power outputs
MTTF
D
EN ISO 13849-1
Mean Time To dangerous Failure: (The total number of
life units) / (the number of dangerous, undetected
failures) during a particular measurement interval under
stated conditions
PFD
EN 61508
Probability of Failure on Demand
PFH
EN 61508
Probability of Dangerous Failures per Hour
PL
EN ISO 13849-1
Performance Level: Corresponds SIL, Levels a-e
PTI
EN 61508
Proof Test Interval
SFF
EN 61508
Safe Failure Fraction (%)
SIL
EN 61508
Safety Integrity Level
STO
EN 61800-5-2
IEC 61800-5-2
Safe Torque Off
CE Declaration of Conformity
The declaration (3AXD10000540159) is available on the internet. See
TüV Certificate
The TüV Certificate (3AXD10000540318) is available on the internet. See
Summary of Contents for MicroFlex e190
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Page 4: ......
Page 12: ...12 Table of contents ...
Page 26: ...26 Introduction to the manual ...
Page 90: ...90 Electrical installation input output ...
Page 146: ...146 Maintenance ...
Page 178: ...178 Resistor braking ...
Page 186: ...186 Accessories ...
Page 208: ...208 Appendix Safe Torque Off STO ...