Tabla de contenido
Alimentación
Parámetro
Hardware Fault Tolerance
Classification
Architecture
Failure mode
•
•
Failure Mode Diagnostic
•
•
Diagnostic Coverage
Diagnostic test interval
Safe Failure Fraction
Funcionamiento de seguridad con votación 1oo1
● Conforme a IEC 61508
● Conforme a IEC 13849-1
● Conforme a EN 954-1
KP8, KP8F, KP32F
Instrucciones de servicio, 11/2011, A5E03284319-02
Detected
Undetected
Detected
Undetected
Systematic Capability
Mode of operation
Meantime to Restoration (MTTR)
Probability of a dangerous failure per hour
(PFH)
Probability of a dangerous failure on demand
(PFD)
Safe Failure Fraction (SFF)
Diagnostic test interval
Proof Test Interval
Lifetime
Meantime to Failure (MTTF
Meantime to Restoration (MTTR)
Diagnostic Coverage (DC
Performance Level
Category
Categoría
Valor
0
A
1oo1D
Dangerous process value
22.50 FIT
•
0.22 FIT
•
No error signaling or no safe
values
0 FIT
•
0 FIT
•
99.03 %
< 10 ms
99.84 %
SIL3
High and low demand mode
100 h
5.95 × 10
2.61 × 10
99.19 %
15 ms
10 y
10 y
)
560 y
d
100 h
)
98.90 %
avg
d
3
3
9.4 Funcionamiento de seguridad (failsafe)
Comentario
–
–
–
Due to failures in the power supply
Calculation according
IEC 13849-1, CAT4
–
Voltage monitoring in hardware
–
1/h
–10
–5
Datos técnicos
111
Tabla de contenido
