|
IEC TS 62998-1
Edition 1.0 2019-05
TECHNICAL
SPECIFICATION
colour
inside
Safety of machinery –
Safety-related sensors used for the protection of persons
your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de
CH-1211 Geneva 20
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.
need further assistance, please contact the Customer Service
.
IEC TS 62998-1
Edition 1.0 2019-05
TECHNICAL
SPECIFICATION
colour
inside
Safety of machinery –
Safety-related sensors used for the protection of persons
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.110; 21.020 ISBN 978-2-8322-6819-3
– 2 – IEC TS 62998-1:2019 © IEC 2019
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 10
3 Terms and definitions . 10
3.1 Characteristics and performance criteria . 11
3.2 Dependability . 12
3.3 Procedures and architectural deliberations . 14
3.4 Terms related to system . 16
3.5 Fusion. 18
3.6 Safety related information . 18
3.7 Test . 20
3.8 User groups . 22
3.9 Verification and validation . 22
4 Lifecycle and interconnection to safety-related electrical control systems (SCS) . 24
4.1 General . 24
4.2 Hazard and risk analysis . 26
4.2.1 General . 26
4.2.2 Hazard caused by SRS/SRSS. 27
4.2.3 Required SRS/SRSS performance class . 28
4.3 Correspondence SRS/SRSS performance class . 28
5 Design and development phase . 29
5.1 General . 29
5.2 SRS/SRSS functions . 29
5.3 Design analysis. 30
5.4 Simulation . 30
5.5 Sensing zone(s) . 31
5.6 Safety related zone . 31
5.7 Automation related zone . 31
5.8 Detection capability and dependability . 31
5.8.1 General . 31
5.8.2 Object classes and physical properties . 32
5.8.3 Environmental influences . 33
5.9 User interface . 37
5.9.1 General . 37
5.9.2 Mounting . 37
5.9.3 Safety related information . 37
6 Integration and installation phase . 40
6.1 General . 40
6.2 Fusion of SRS into an SRSS . 40
6.2.1 General . 40
6.2.2 Limits of use after fusion . 41
6.2.3 Detection capability after fusion . 41
6.2.4 Sensing zone(s) after fusion . 42
6.2.5 Dependability under environmental condition after fusion . 42
6.2.6 Safety related information after fusion . 42
6.2.7 SRSS performance class after fusion . 43
6.2.8 Response time after fusion . 44
6.2.9 Verification and validation after fusion . 44
6.3 Calibration at user side . 44
6.3.1 General . 44
6.3.2 Calibration procedure and equipment . 45
6.3.3 Verification and validation of calibration . 45
7 Operation, maintenance and modification phases . 45
8 Verification and validation . 46
8.1 General . 46
8.2 Verification of an SRS/SRSS . 46
8.3 Validation of an SRS/SRSS . 47
8.4 Analysis . 48
8.5 Test . 49
8.5.1 General . 49
8.5.2 Test classification . 49
8.5.3 Test method and test setup . 50
8.5.4 Test piece . 51
8.5.5 Test plan and test results . 51
9 Information for use . 52
Annex A (informative) Examination of systematic capabilities . 54
Annex B (informative) User groups . 55
B.1 User groups of SRS/SRSS and groups addressed by this document . 55
B.2 User groups addressed by fusion . 55
Annex C (informative) Functional decomposition and/or integration . 58
Annex D (normative) Generation and application of simulation models . 59
D.1 General . 59
D.2 Recommendations for use. 59
D.3 Simulation objectives and measures to achieve them . 59
D.4 Verification. 62
Annex E (informative) Child properties and behaviour . 64
E.1 General . 64
E.2 Sizes of parts of body . 64
Annex F (informative) Environmental influences . 68
F.1 General . 68
F.2 Example 1 for application of environmental influences . 68
F.3 Example 2 for application of environmental influences . 70
Annex G (informative) Faults, failures and influences resulting in a loss of SRS/SRSS
safety related function. 71
G.1 General . 71
G.2 Failure to danger . 74
G.3 Normal operation . 75
G.4 Signal to initiate the fault reaction function and confidence information as
part of safety related information . 75
Annex H (informative) Test aspects . 77
H.1 General . 77
H.2 Mechanical influence test . 77
Annex I (informative) Examples of functions, safety related information and fusion . 81
– 4 – IEC TS 62998-1:2019 © IEC 2019
I.1 Example of functions . 81
I.2 Example of safety related information .
...