Functional Safety Data Declaration - Renishaw TONiC FS T3 3 Series Functional Safety Installation Manual And Safety Manual

Functional Safety data declaration

Product identification
IEC 61508 safety data
Safety Integrity Level
Random Hardware Failures (per hour)
PFD
avg
PFH (per hour)
Architectural Constraints
Hardware safety integrity compliance
Systematic safety integrity compliance
Systematic capability
Demand mode
ISO 13849 safety data
MTTF (years)
D
Diagnostic coverage
Category
Performance level
Lifetime /Replacement limits
Original instructions
TONiC Functional Safety (FS) encoder system
™
TONiC FS readhead
TONiC FS readhead
and Ti interface
2
l l
= 1.77 × 10 = 1.77 × 10
-7 -7
S S
l l
= 8.41 × 10 = 1.38 × 10
-8 -7
D D
l l
= 7.57 × 10 = 1.25 × 10
-8 -7
DD DD
l l
= 8.41 × 10 = 1.38 × 10
-9 -8
DU DU
Not available as this system does not support low demand mode
l l
= 8.41 × 10 -9 = 1.38 × 10 -8
DU DU
Type B
HFT = 0
SFF = 96%
Route 1H
Route 1S
SC2
Continuous
TONiC FS readhead
TONiC FS readhead
and Ti interface
1300 800
Medium (90%)
3
d
20 years
TONiC FS readhead
and DOP interface
l
= 1.77 × 10
-7
S
l
= 4.14 × 10
-7
D
l
= 3.73 × 10
-7
DD
l
= 4.14 × 10
-7
DU
l
= 4.14 × 10 -7
DU
TONiC FS readhead
and DOP interface
270
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