Specifications Of Sto - Delta ASDA-A3 Series User Manual

ASDA-A3

3.10.3 Specifications of STO

The ASDA-A3 series servo drive conforms to the following safety specifications:
Item
SFF
HFT
(Type A subsystem)
SIL
PFH
PFD
av
Category
PL
MTTF
d
DC
Description
Safe failure fraction
Hardware fault tolerance
Safety integrity level
Probability of dangerous failure per hour
[h ]
-1
Average probability of failure on demand
Category
Performance level
Mean time to dangerous failure
Diagnostic coverage
Standard Safety data
Channel1: 80.08%
IEC61508
Channel2: 68.91%
IEC61508 1
IEC61508 SIL2
IEC62061 SILCL2
IEC61508 9.56×10
-10
IEC61508 4.18×10
-6
EN954-1 Category 3
ISO13849-1 d
ISO13849-1 High
ISO13849-1 Low
Wiring
3
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