EasyManuals Logo

Delta VFD17AMS43AFSAA User Manual

Delta VFD17AMS43AFSAA
805 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #780 background imageLoading...
Page #780 background image
Chapter 17 Safe Torque Off FunctionMS300
771
17-4 Failure Rate of the Drive Safety Function
Refer to Table 17-3 for the relevant safe loop parameters.
Item
Definition
Standard
Performance
SFF
Safe failure fraction
IEC61508
S1–DCM = 88.35%
S2–DCM = 88.2%
HFT
(Type A subsystem)
Hardware fault tolerance
IEC61508
1
SIL
Safety integrity level
IEC61508
SIL 2
IEC62061
SILCL 2
PFH
Average frequency of dangerous failure
[h-1]
IEC61508
1.36 x 10
-9
PFD
av
Probability of dangerous failure on
demand
IEC61508
5.99 x 10
-6
PTI
Proof test interval
IEC61508
1 year
Category
Category
ISO13849-1
Category 3
PL
Performance level
ISO13849-1
d
MTTF
d
Mean time to dangerous failure
ISO13849-1
High
DC
Diagnostic coverage
ISO13849-1
Low
Table 17-3: Relevant safe loop parameters

Table of Contents

Other manuals for Delta VFD17AMS43AFSAA

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Delta VFD17AMS43AFSAA and is the answer not in the manual?

Delta VFD17AMS43AFSAA Specifications

General IconGeneral
BrandDelta
ModelVFD17AMS43AFSAA
CategoryDC Drives
LanguageEnglish

Related product manuals