JUMO 14597 safetyM STB/STW Ex - Safety Temperature Limiter and Safety Temperature Monitor Operating Manual - Manual (Page 54)

6 Safety Manual
2013-04-01 48
Table 10: Terms and abbreviations according to DIN EN ISO 13849
Formula symbol or
abbreviation
Description Definition
or location
PL (a, b, c, d, e) Description for the Performance Level Table 3
AOPD Active Opto-electronic Protective Device (e.g. light barrier) Appendix H
B, 1, 2, 3, 4 Description for the categories Table 7
B
10d
Number of cycles in which a dangerous failure occurred in 10 % of a random
sample of the observed pneumatic or electromechanical components that are
subject to wear (mean time to dangerous failure) Appendix C
Cat. Category 3.1.2
CC Current converter Appendix I
CCF
Common Cause Failure
3.1.6
DC
Diagnostic Coverage
3.1.26
DC
avg
Average diagnostic coverage E.2
F, F1, F2 Frequency and/or duration of the exposure to danger A.2.2
FB Function block 4.6.3
FVL Programming language with unlimited language range 3.1.35
FMEA Failure Modes and Effects Analysis 7.2
I, I1, I2 Input device, e.g. sensor 6.2
i, j Index for counting Appendix D
I/O Inputs/outputs Table E.1
i
ab
, i
bc
Fasteners Image 4