Functional safety
326
9.
FUN
C
TI
ON
AL SAFET
Y
Tec
h
nical data of
the
safety function
320
DDS
HARDWARE
Ref.1310
9.6 Technical data of the safety function
Fagor Automation drives AXD/SPD only offer the safety function STO
(
S
afe
T
orque
O
ff) defined according to the standard IEC 61800-5-2.
To calculate the
P
erformance
L
evel (PL of ISO 13849-1) and/or the
S
afe-
ty
I
ntegrated
L
evel (SIL of IEC 62061) use the following data referred to
AXD/SPD drives given in the following tables:
This data is calculated considering a contactor with 500,000 life cycles
and a demand from the STO safety function every 5 minutes running 24
hours a day. For higher demands, check with Fagor Automation.
Note.
Bear in mind that PFH and MTTFd are calculated values and show
the probability of failure. This does not guarantee the useful life of a par-
ticular product.
The external main contactor - KM1 installed must comply with standard
IEC 60947-4-1 (if it is a mirror-contact type) or with IEC 60947-5-1 (if its
contact is joined mechanically).
The Drive Enable has been designed to be used in high-demand mode
(more than once a year) according to standard IEC 61800-5-2.
T. H9/1
Calculation data according to IEC 61508 and IEC 61800-5-2.
Lifetime
years
20
SFF (
S
afe
F
ailure
F
raction)
%
99
PFH (Average frequency of a dangerous
F
ailure per
H
our)
1/h
1.5654E-07
HFT (
H
ardware
F
ault
T
olerance)
1
SIL (
S
afety
I
ntegrity
L
evel)
2
T. H9/2
Calculation data according to ISO 13849-1.
PL (
P
erformance
L
evel)
d
MTTFd (
M
ean
T
ime
T
o
d
angerous
F
ailure) years
21.4
DC (
D
iagnostic
C
overage)
%
98
Category
3
CCF (
C
ommon
C
ause
F
ailure)
80
Summary of Contents for DDS
Page 1: ...DRIVE DDS Hardware manual Ref 1310...
Page 6: ...I 6 DDS HARDWARE Ref 1310...
Page 9: ......
Page 10: ......
Page 11: ......
Page 12: ......
Page 16: ...16 Ref 1310 DDS HARDWARE...
Page 30: ...1 DESCRIPTION 30 Description DDS HARDWARE Ref 1310...
Page 94: ...2 POWER SUPPLIES 94 Power supplies DDS HARDWARE Ref 1310...
Page 188: ...3 DRIVE MODULES 188 Drive modules DDS HARDWARE Ref 1310...
Page 204: ...4 AUXILIARY MODULES 204 Auxiliary modules DDS HARDWARE Ref 1310...
Page 232: ...SELECTING CRITERIA 5 232 Selection criteria DDS HARDWARE Ref 1310...
Page 266: ...7 CABLES 266 Cables DDS HARDWARE Ref 1310...
Page 312: ...8 INSTALLATION 312 Installation DDS HARDWARE Ref 1310...
Page 326: ...9 FUNCTIONAL SAFETY 326 Functional safety DDS HARDWARE Ref 1310...
Page 354: ...10 CONNECTION DIAGRAMS 354 Connection diagrams DDS HARDWARE Ref 1310...
Page 378: ...12 SALES REFERENCES 378 Sales references DDS HARDWARE Ref 1310...
Page 384: ...13 COMPATIBILITY 384 Compatibility DDS HARDWARE Ref 1310...
Page 385: ......