Festo CMMT-AS Series, Перевод оригинальной инструкции

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34 Festo — CMMT-AS-...-S1 — 2021-04d
Technical data
Safety reference data for the safety sub-function STO
Circuitry Without high test
pulses, without or
with STA evaluation With high test
pulses and with STA
evaluation
1)
With high test
pulses and without
STA evaluation
Safe failure fraction
SFF in accordance with
EN 61508 [%] 99 99 99
Hardware fault toler-
ance in accordance
with EN 61508, HFT 1
Common cause factor
for dangerous unde-
tected failures
β
in accordance with
EN 61508
[%] 5
Classification in
accordance with
EN 61508 Type A
1) Safety sub-function STO tested and STA diagnostic output monitored by the safety controller at least 1 x every 24 h.
Tab. 16: Safety reference data for the safety sub-function STO
Safety reference data for the safety sub-function SBC
Circuitry Two brakes
1)
with SBA evalua-
tion
2)
One brake
3)
Without SBA eval-
uation
Safety sub-function
in accordance with
EN 61800-5-2 Safe brake control (SBC)
Safety integrity level
in accordance with
EN 61508 SIL 3 SIL 1
SIL claim limit for a
subsystem in accord-
ance with EN 62061 SIL CL 3 SIL CL 1
Category in accordance
with EN ISO 13849-1 Cat. 3 Cat. 1
Performance level
in accordance with
EN ISO 13849-1 PL e PL c