SIST EN ISO 13850:2016
(Main)Safety of machinery - Emergency stop - Principles for design (ISO 13850:2015)
Safety of machinery - Emergency stop - Principles for design (ISO 13850:2015)
This International Standard specifies functional requirements and design principles for the emergency
stop function on machinery, independent of the type of energy used.
It does not deal with functions such as reversal or limitation of motion, deflection of emissions (e.g.
radiation, fluids), shielding, braking or disconnecting, which can be part of the emergency stop function.
The requirements for this International Standard apply to all machines, with exception to:
— machines where an emergency stop would not reduce the risk;
— hand-held or hand-operated machines.
NOTE The requirements for the realization of the emergency stop function based on electrical/electronic
technology are described in IEC 60204-1.
Sicherheit von Maschinen - Not-Halt - Gestaltungsleitsätze (ISO 13850:2015)
Diese Internationale Norm legt funktionale Anforderungen und Gestaltungsleitsätze für die Not-Halt-Funktion, unabhängig von der Art der verwendeten Energie, fest.
Sie behandelt nicht die Funktionen wie Umkehr und Begrenzen von Bewegungen, Abweisen von Emissionen (z. B. Strahlung, Flüssigkeiten), Abschirmen, Bremsen oder Unterbrechen, die Teil der Not-Halt-Funktion sein können.
Die Anforderungen dieser Internationalen Norm gelten für alle Maschinen, mit Ausnahme von:
Maschinen, bei denen ein Not-Halt das Risiko nicht verringern würde;
von Hand tragbaren und handgeführten Maschinen.
ANMERKUNG Die Anforderungen zur Realisierung einer Not-Halt-Funktion, die auf einer elektrischen/elektronischen Technologie basiert, sind in IEC 60204-1 beschrieben.
Sécurité des machines - Arrêt d'urgence - Principes de conception (ISO 13850:2015)
ISO 13850:2015 spécifie les exigences fonctionnelles et les principes de conception de la fonction d'arrêt d'urgence, indépendamment du type d'énergie utilisée.
La présente Norme internationale ne traite pas des fonctions telles que l'inversion ou la limitation du mouvement, la déflexion d'émissions (par exemple, rayonnements, fluides), l'interposition d'un écran, le freinage ou la déconnexion, qui peuvent faire partie de la fonction arrêt d'urgence.
Les exigences de la présente Norme internationale s'appliquent à toutes les machines, à l'exception:
- des machines pour lesquelles un arrêt d'urgence ne réduirait pas le risque;
- des machines portatives tenues à la main ou machines à main.
NOTE Les exigences relatives à la réalisation de la fonction d'arrêt d'urgence basée sur la technologie électrique/électronique sont décrites dans l'IEC 60204‑1.
Varnost strojev - Zaustavitev v sili - Načela načrtovanja (ISO 13850:2015)
Ta mednarodni standard določa funkcionalne zahteve in načela za načrtovanje funkcije
zaustavitve v sili na strojih ne glede na vrsto uporabljene energije.
Standard ne obravnava funkcij, kot so zamenjava smeri ali omejitev gibanja, odboj emisij (npr.
sevanja, tekočin), zaščita, zaviranje ali odklop, ki so lahko del funkcije zaustavitve v sili.
Zahteve za ta mednarodni standard se uporabljajo za vse stroje z izjemo:
— strojev, pri katerih zaustavitev v sili ne bi zmanjšala tveganja;
— ročnih ali ročno upravljanih strojev.
OPOMBA: Zahteve za realizacijo funkcije zaustavitve v sili na podlagi električne/elektronske
tehnologije so opisane v standardu IEC 60204-1.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 13850:2016
01-februar-2016
1DGRPHãþD
SIST EN ISO 13850:2008
9DUQRVWVWURMHY=DXVWDYLWHYYVLOL1DþHODQDþUWRYDQMD ,62
Safety of machinery - Emergency stop - Principles for design (ISO 13850:2015)
Sicherheit von Maschinen - Not-Halt - Gestaltungsleitsätze (ISO 13850:2015)
Sécurité des machines - Arrêt d'urgence - Principes de conception (ISO 13850:2015)
Ta slovenski standard je istoveten z: EN ISO 13850:2015
ICS:
13.110 Varnost strojev Safety of machinery
SIST EN ISO 13850:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 13850:2016
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SIST EN ISO 13850:2016
EN ISO 13850
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2015
EUROPÄISCHE NORM
ICS 13.110 Supersedes EN ISO 13850:2008
English Version
Safety of machinery - Emergency stop function - Principles
for design (ISO 13850:2015)
Sécurité des machines - Fonction d'arrêt d'urgence - Sicherheit von Maschinen - Not-Halt -
Principes de conception (ISO 13850:2015) Gestaltungsleitsätze (ISO 13850:2015)
This European Standard was approved by CEN on 5 September 2015.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13850:2015 E
worldwide for CEN national Members.
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SIST EN ISO 13850:2016
EN ISO 13850:2015 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this International Standard and the
Essential Requirements of EC Directive 2006/42/EC . 4
2
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SIST EN ISO 13850:2016
EN ISO 13850:2015 (E)
European foreword
This document (EN ISO 13850:2015) has been prepared by Technical Committee ISO/TC 199 "Safety of
machinery" in collaboration with Technical Committee CEN/TC 114 “Safety of machinery” the
secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by May 2016, and conflicting national standards shall be
withdrawn at the latest by May 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN ISO 13850:2008.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this
document.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 13850:2015 has been approved by CEN as EN ISO 13850:2015 without any modification.
3
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SIST EN ISO 13850:2016
EN ISO 13850:2015 (E)
Annex ZA
(informative)
Relationship between this International Standard and
the Essential Requirements of EC Directive 2006/42/EC
This European Standard has been prepared under a mandate given to CEN by the European
Commission and the European Free Trade Association to provide a means of conforming to Essential
Requirements 1.2.4.3 of the New Approach Directive Machinery 2006/42/EC.
Once this standard is cited in the Official Journal of the European Union under that Directive and has
been implemented as a national standard in at least one Member State, compliance with the normative
clauses of this standard confers, within the limits of the scope of this standard, a presumption of
conformity with the relevant Essential Requirements of that Directive and associated EFTA regulations.
WARNING — Other requirements and other EC Directives may be applicable to the product(s)
falling within the scope of this standard.
4
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SIST EN ISO 13850:2016
INTERNATIONAL ISO
STANDARD 13850
Third edition
2015-10-01
Safety of machinery — Emergency
stop function — Principles for design
Sécurité des machines — Fonction d’arrêt d’urgence — Principes
de conception
Reference number
ISO 13850:2015(E)
©
ISO 2015
---------------------- Page: 7 ----------------------
SIST EN ISO 13850:2016
ISO 13850:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 13850:2016
ISO 13850:2015(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Safety requirements . 3
4.1 General requirements . 3
4.1.1 Emergency stop function . 3
4.1.2 Span of control of emergency stop device(s) . 4
4.1.3 Stop categories . 5
4.1.4 Disengagement (e.g. unlatching) of the emergency stop device . 6
4.1.5 Emergency stop equipment . 6
4.2 Operating conditions, environmental influences . 6
4.3 Emergency stop device . 6
4.4 Use of wires or ropes as actuators . 8
4.5 Prevention of unintended actuation of an emergency stop device. 9
4.6 Portable operator control stations . 9
4.6.1 Emergency stop functions on portable operator control stations . 9
4.6.2 Emergency stop reset for cableless operator control stations .10
Bibliography .11
© ISO 2015 – All rights reserved iii
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SIST EN ISO 13850:2016
ISO 13850:2015(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 199, Safety of machinery.
This third edition cancels and replaces the second edition (ISO 13850:2006), which has been
technically revised.
iv © ISO 2015 – All rights reserved
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SIST EN ISO 13850:2016
ISO 13850:2015(E)
Introduction
The structure of safety standards in the field of machinery is as follows.
a) Type-A standards (basic safety standards) give basic concepts, principles for design, and general
aspects that can be applied to machinery.
b) Type-B standards (generic safety standards) deal with one or more safety aspect(s) or one or more
type(s) of safeguard that can be used across a wide range of machinery:
— type-B1 standards on particular safety aspects (e.g. safety distances, surface temperature, noise);
— type-B2 standards on safeguards (e.g. two-hands controls, interlocking devices, pressure
sensitive devices, guards).
c) Type-C standards (machinery safety standards) deal with detailed safety requirements for a
particular machine or group of machines.
This International Standard is a type-B2 standard as stated in ISO 12100.
When provisions of a type-C standard are different from those which are stated in type-A or type-B
standards, the provisions of the type-C standard take precedence.
© ISO 2015 – All rights reserved v
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SIST EN ISO 13850:2016
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SIST EN ISO 13850:2016
INTERNATIONAL STANDARD ISO 13850:2015(E)
Safety of machinery — Emergency stop function —
Principles for design
1 Scope
This International Standard specifies functional requirements and design principles for the emergency
stop function on machinery, independent of the type of energy used.
It does not deal with functions such as reversal or limitation of motion, deflection of emissions (e.g.
radiation, fluids), shielding, braking or disconnecting, which can be part of the emergency stop function.
The requirements for this International Standard apply to all machines, with exception to:
— machines where an emergency stop would not reduce the risk;
— hand-held or hand-operated machines.
NOTE The requirements for the realization of the emergency stop function based on electrical/electronic
technology are described in IEC 60204-1.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 4413, Hydraulic fluid power — General rules and safety requirements for systems and their components
ISO 4414, Pneumatic fluid power — General rules and safety requirements for systems and their components
ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 13849-1, Safety of machinery — Safety-related parts of control systems — Part 1: General
principles for design
IEC 60204-1:2005, Safety of machinery — Electrical equipment of machines — Part 1: General requirements
IEC 60947-5-5:2005, Low-voltage switchgear and controlgear — Part 5-5: Control circuit devices and
switching elements — Electrical emergency stop device with mechanical latching function
IEC 62061, Safety of machinery — Functional safety of safety-related electrical, electronic and
programmable electronic control systems
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12100:2010 and the
following apply.
3.1
emergency stop (E-stop)
emergency stop function
function which is intended to
— avert arising or reduce existing hazards to persons, damage to machinery or to work in progress, and
— be initiated by a single human action
© ISO 2015 – All rights reserved 1
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SIST EN ISO 13850:2016
ISO 13850:2015(E)
[SOURCE: ISO 12100:2010, 3.40]
3.2
emergency stop equipment
safety related parts of a control system which perform the emergency stop function
Note 1 to entry: Typically emergency stop equipment is divided into input, processing and output elements.
3.3
emergency stop device
manually actuated control device used to initiate an emergency stop function
[SOURCE: IEC 60947-5-5:2005, 3.2]
3.4
machine actuator
power mechanism of the machine used to effect motion
Note 1 to entry: Example of machine actuators are motor, solenoid, pneumatic or hydraulic cylinder.
3.5
safety function
function of a machine whose failure can result in an immediate increase of risk(s)
[SOURCE: ISO 12100:2010, 3.30]
3.6
span of control of emergency stop device(s)
predetermined section of the machinery under control of specific emergency stop device(s)
3.7
protective shroud
mechanical measure provided to reduce the possibility of unintended actuation of an emergency stop
device
3.8
emergency situation
hazardous situation needing to be urgently ended or averted
Note 1 to entry: An emergency situation can arise during normal operation of the machine (for example due to
human interaction or as a result of external influences) or as a consequence of a malfunction or failure of any part
of the machine.
[SOURCE: ISO 12100:2010, 3.38, modified]
3.9
operator control station
assembly of one or more control actuators fixed on the same panel or located in the same enclosure
Note 1 to entry: Actuator is a part of a device to which an external manual action is to be applied (see IEC 60204-
1:2005, 3.1).
[SOURCE: IEC 60204-1:2005, 3.13, modified.]
2 © ISO 2015 – All rights reserved
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SIST EN ISO 13850:2016
ISO 13850:2015(E)
4 Safety requirements
4.1 General requirements
4.1.1 Emergency stop function
4.1.1.1 The purpose of the emergency stop function is to avert actual or impending emergency
situations arising from the behaviour of persons or from an unexpected hazardous event.
The emergency stop function is to be initiated by a single human action.
4.1.1.2 The emergency stop function shall be available and operational at all times. It shall override all
other functions and operations in all operating modes of the machine without impairing other protective
functions (e.g. release of trapped persons, fire suppression).
When the emergency stop function is activated:
— it shall be maintained until it is manually reset;
— it shall not be possible for any start command to be effective on those operat
...
SLOVENSKI STANDARD
oSIST prEN ISO 13850:2014
01-september-2014
9DUQRVWVWURMHY=DXVWDYLWHYYVLOL1DþHODQDþUWRYDQMD ,62',6
Safety of machinery - Emergency stop - Principles for design (ISO/DIS 13850:2014)
Sicherheit von Maschinen - Not-Halt - Gestaltungsleitsätze (ISO/DIS 13850:2014)
Sécurité des machines - Arrêt d'urgence - Principes de conception (ISO/DIS
13850:2014)
Ta slovenski standard je istoveten z: prEN ISO 13850 rev
ICS:
13.110 Varnost strojev Safety of machinery
oSIST prEN ISO 13850:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 13850:2014
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oSIST prEN ISO 13850:2014
DRAFT INTERNATIONAL STANDARD
ISO/DIS 13850
ISO/TC 199 Secretariat: DIN
Voting begins on: Voting terminates on:
2014-04-10 2014-09-10
Safety of machinery — Emergency stop function —
Principles for design
Sécurité des machines — Arrêt d’urgence — Principes de conception
[Revision of second edition (ISO 13850:2006)]
ICS: 13.110
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for
Standardization (ISO), and processed under the ISO lead mode of collaboration
as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member
bodies for a parallel five month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments
received, will be submitted to a parallel two-month approval vote in ISO and
THIS DOCUMENT IS A DRAFT CIRCULATED
formal vote in CEN.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
To expedite distribution, this document is circulated as received from the
IN ADDITION TO THEIR EVALUATION AS
committee secretariat. ISO Central Secretariat work of editing and text
BEING ACCEPTABLE FOR INDUSTRIAL,
composition will be undertaken at publication stage.
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 13850:2014(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2014
---------------------- Page: 3 ----------------------
oSIST prEN ISO 13850:2014
ISO/DIS 13850:2014(E)
Copyright notice
This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as
permitted under the applicable laws of the user’s country, neither this ISO draft nor any extract
from it may be reproduced, stored in a retrieval system or transmitted in any form or by any means,
electronic, photocopying, recording or otherwise, without prior written permission being secured.
Requests for permission to reproduce should be addressed to either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
ii © ISO 2014 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 13850:2014
ISO/DIS 13850
Contents Page
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Safety requirements . 3
4.1 General requirements . 3
4.1.1 Emergency stop function . 3
4.1.2 Span of control of emergency stop device(s) . 4
4.1.3 Stop categories . 5
4.1.4 Disengagement (e.g. unlatching) of the emergency stop device . 6
4.1.5 Emergency stop equipment . 6
4.2 Operating conditions, environmental influences . 6
4.3 Emergency stop device . 6
4.4 Use of wires or ropes as actuators . 8
4.5 Prevention of unintended activation of an emergency stop device . 9
4.5.1 Prevention of unintended activation of an emergency stop device . 9
4.6 Portable operator control stations . 9
4.6.1 Emergency stop functions on portable operator control stations . 9
4.6.2 Emergency stop reset . 9
Annex ZA (informative) Relationship between this International Standard and the Essential
Requirements of EC Directive 2006/42/EC . 11
Bibliography . 12
© ISO 2014 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 13850:2014
ISO/DIS 13850
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 13850 was prepared by Technical Committee ISO/TC 199, Safety of machinery, and by Technical
Committee CEN/TC 114, Safety of machinery in collaboration.
iv © ISO 2014 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 13850:2014
ISO/DIS 13850
Introduction
The structure of safety standards in the field of machinery is as follows.
a) Type-A standards (basic safety standards) give basic concepts, principles for design, and general
aspects that can be applied to machinery.
b) Type-B standards (generic safety standards) deal with one or more safety aspect(s) or one or more
type(s) of safeguard that can be used across a wide range of machinery:
⎯ type-B1 standards on particular safety aspects (e.g. safety distances, surface temperature, noise);
⎯ type-B2 standards on safeguards (e.g. two-hands controls, interlocking devices, pressure sensitive
devices, guards).
c) Type-C standards (machinery safety standards) deal with detailed safety requirements for a particular
machine or group of machines.
This International Standard is a type-B2 standard as stated in ISO 12100.
When provisions of a type-C standard are different from those which are stated in type-A or type-B standards,
the provisions of the type-C standard take precedence.
© ISO 2014 – All rights reserved v
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oSIST prEN ISO 13850:2014
---------------------- Page: 8 ----------------------
oSIST prEN ISO 13850:2014
DRAFT INTERNATIONAL STANDARD ISO/DIS 13850
Safety of machinery — Emergency stop function — Principles
for design
1 Scope
This International Standard specifies functional requirements and design principles for the emergency stop
function on machinery, independent of the type of energy used to control the function.
It does not deal with functions such as reversal or limitation of motion, deflection, shielding, braking or
disconnecting, which can be part of the emergency stop function.
NOTE The requirements for the realization of the emergency stop function based on electrical/electronic technology
are described in IEC 60204-1.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 4413, Hydraulic fluid power — General rules and safety requirements for systems and their components
ISO 4414, Pneumatic fluid power — General rules and safety requirements for systems and their components
ISO 11161:2007, Safety of machinery — Integrated manufacturing systems — Basic requirements
ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 13849-1, Safety of machinery — Safety-related parts of control systems — Part 1: General principles for
design
IEC 60204-1:2009, Safety of machinery — Electrical equipment of machines — Part 1: General requirements
IEC 60947-5-5:2005, Low-voltage switchgear and controlgear — Part 5-5: Control circuit devices and
switching elements — Electrical emergency stop device with mechanical latching function
IEC 60417-DB:2002, Graphical symbols for use on equipment (on-line database)
IEC 61800-5-2, Adjustable speed electrical power drive systems — Part 5-2: Safety requirements —
Functional
IEC 62061, Safety of machinery — Functional safety of safety-related electrical, electronic and programmable
electronic control systems
© ISO 2014 – All rights reserved 1
---------------------- Page: 9 ----------------------
oSIST prEN ISO 13850:2014
ISO/DIS 13850
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12100:2010 and the following apply.
3.1
emergency stop (E-stop)
emergency stop function
function which is intended to
⎯ avert arising or reduce existing hazards to persons, damage to machinery or to work in progress, and
⎯ be initiated by a single human action
[SOURCE: ISO 12100:2010, 3.40.]
3.2
emergency stop equipment
safety related parts of a control system which perform the emergency stop function
Note to entry: Typically emergency stop equipment is divided into input, processing and output elements.
3.3
emergency stop device
manually actuated control device used to initiate an emergency stop function
[SOURCE: IEC 60947-5-5:2005, 3.2.]
3.4
machine actuator
power mechanism of the machine used to effect motion
Note to entry: Example of machine actuators are motor, solenoid, pneumatic or hydraulic cylinder.
3.5
safety function
function of a machine whose failure can result in an immediate increase of risk(s)
[SOURCE: ISO 12100:2010, 3.30.]
3.6
span of control of emergency stop device(s)
predetermined section of the machinery under control of specific emergency stop device(s)
[SOURCE: ISO 11161:2007, 3.23, modified.]
3.7
protective shroud
mechanical measure provided to prevent inadvertent actuation of an emergency stop device
3.8
emergency situation
hazardous situation needing to be urgently ended or averted
Note to entry:
— An emergency situation can arise during normal operation of the machine (for example due to human interaction or as
a result of external influences) or
— as a consequence of a malfunction or failure of any part of the machine.
[SOURCE: ISO 12100:2010, 3.38.]
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3.9
operator control station
assembly of one or more control actuators fixed on the same panel or located in the same enclosure
Note to entry: Actuator is a part of a device to which an external manual action is to be applied (see IEC 60204-1:2009,
3.1).
[SOURCE: IEC 60204-1:2009, 3.13, modified.]
4 Safety requirements
4.1 General requirements
4.1.1 Emergency stop function
4.1.1.1 The purpose of the emergency stop function is to avert actual or impeding emergency situations
arising from the behaviour of persons or from an unexpected hazardous event.
The emergency stop function is to be initiated by a single human action.
4.1.1.2 The emergency stop function shall be available and operational at all times and override all other
functions and operations in all operating modes of the machine without impairing other protective functions
(e.g. release of trapped persons, fire suppression). When the emergency stop function is activated it shall be
maintained until it is manually reset. It shall not be possible for any start command to be effective on those
operations stopped by the initiation of the emergency stop function until the emergency stop function is reset
by intentional human action. The reset of the emergency stop function operated by disengagement of an
emergency stop device (see 4.1.4) shall not initiate the machine start up.
4.1.1.3 The emergency stop function shall not be applied as a substitute for safeguarding measures and
other safety functions but shall be designed and incorporated for use as a complementary protective measure.
The emergency stop function shall not impair the effectiveness of protective devices or of devices with other
safety functions.
NOTE For this purpose, it can be necessary to ensure the continuing operation of auxiliary equipment such as
magnetic chucks or braking devices.
4.1.1.4 The emergency stop function shall be so designed, that after actuation of the emergency stop device,
hazardous movements and operations of the machine are stopped in an appropriate manner, without creating
additional hazards and without any further intervention.
NOTE An "appropriate manner" can include:
⎯ choice of an optimal deceleration rate taking into account the necessary design restraints of the machine;
⎯ selection of the stop category (see 4.1.3);
⎯ the necessity for a predetermined shutdown sequence.
Depending on the machine and the specific risks, the emergency stop function can include functions other
than stopping to minimize the risk of harm.
4.1.1.5 The emergency stop function shall be so designed that a decision to activate the emergency stop
device does not require the machine operator to consider the resultant effects.
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4.1.2 Span of control of emergency stop device(s)
The span of control of each emergency stop device shall cover the entire machine.
Where a single span of control is not appropriate (e.g. when stopping all of the linked machinery could create
additional significant hazards or when stopping all of the linked machinery could unnecessarily affect
production) it could be necessary to have more than one span of control.
Each span of control shall be clearly defined and identifiable. Each span of control can cover section(s) of a
machine, an entire machine or a group of machines (see Figure 1).
Different spans of control of the emergency stop function may overlap.
The assignment of spans of control shall be determined taking into account:
a) the physical layout of the machine, based on the vision area of the machine operator;
b) the possibility of the operator to recognize dangerous situations (e.g. visibility, noise, smelt);
c) the necessary requirements of the production process;
d) t
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