SIST EN 1760-2:2002+A1:2009

Safety of machinery - Pressure sensitive protective devices - Part 2: General principles for the design and testing of pressure sensitive edges and pressure sensitive bars

This standard contains requirements for pressure sensitive edges and pressure sensitive bars for use as safety devices and not as actuating devices for normal operational. The standard applies to pressure sensitive edges and pressure sensitive bars used to detect persons or parts of persons who may be exposed to danger such as hazardous moving parts.
The purpose of this standard relates primarily to safety and reliability rather than suitability. For the relationship between safety and reliability, see annex D of EN 954-1:1996.
This standard specifies requirements for pressure sensitive edges and pressure sensitive bars with and without an external reset facility.
This standard is restricted to the functioning of pressure sensitive edges and pressure sensitive bars and does not specify the requirements for their application. However, clause 6 contains requirements for information for use which has to be provided by the manufacturer. A selection procedure is given in annex C.
The design notes in annex D give additional guidance regarding the design of pressure sensitive edges and pressure sensitive bars which will give safe and reliable service. The notes in annex E provide general guidance regarding application, while annex G provides guidance on the application of sensors, especially for air-pulse systems.
This standard does not specify the dimensions of the pressure sensitive edges or bars in relation to a particular application.
The standard does not apply to stopping devices according to EN 60204-1 used only for normal operational, including emergency stopping, of machinery. Additional requirements may be necessary where pressure sensitive edges and pressure sensitive bars are used in locations accessible to elderly or disabled people or children.
NOTE   It may not be possible to carry out all the tests in this standard for pressure sensitive edges and pressure sensitive bars when they have been designed and built into the machinery by its manufacturer.

Sicherheit von Maschinen - Druckempfindliche Schutzeinrichtungen - Teil 2: Allgemeine Leitsätze für die Gestaltung und Prüfung von Schaltleisten und Schaltstangen

Sécurité des machines - Dispositifs de protection sensibles à la pression - Partie 2: Principes généraux de conception et d'essais des bords et barres sensibles à la pression

Varnost strojev - Varovalne naprave, občutljive na tlak - 2. del: Splošna načela načrtovanja in preskušanja robov in drogov, občutljivih na dotik

General Information

• Status: Withdrawn
• Publication Date: 06-Apr-2009
• Withdrawal Date: 20-Oct-2013
• ICS: 13.110 - Safety of machinery
• Technical Committee: VSN - Safety of machinery
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 21-Oct-2013
• Due Date: 13-Nov-2013
• Completion Date: 21-Oct-2013
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Directive: 98/37/EC - Machinery
• Mandate: M/079 - Mandate to CEN and CENELEC for standardization in the field of machines
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: EN 1760-2:2001+A1:2009 - Safety of machinery - Pressure sensitive protective devices - Part 2: General principles for the design and testing of pressure sensitive edges and pressure sensitive bars

Relations

• Replaces: SIST EN 1760-2:2002 - Safety of machinery - Pressure sensitive protective devices - Part 2: General principles for the design and testing of pressure sensitive edges and pressure sensitive bars
• Effective Date: 01-May-2009
• Replaced By: SIST EN ISO 13856-2:2013 - Safety of machinery - Pressure-sensitive protective devices - Part 2: General principles for design and testing of pressure-sensitive edges and pressure-sensitive bars (ISO 13856-2:2013)
• Effective Date: 01-Nov-2013
• Consolidates: SIST EN 1760-2:2002 - Safety of machinery - Pressure sensitive protective devices - Part 2: General principles for the design and testing of pressure sensitive edges and pressure sensitive bars
• Effective Date: 18-Jan-2023
• Consolidates: SIST EN 1760-2:2002 - Safety of machinery - Pressure sensitive protective devices - Part 2: General principles for the design and testing of pressure sensitive edges and pressure sensitive bars
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 1760-2:2002+A1:2009
01-maj-2009
1DGRPHãþD
SIST EN 1760-2:2002
9DUQRVWVWURMHY9DURYDOQHQDSUDYHREþXWOMLYHQDWODNGHO6SORãQDQDþHOD
QDþUWRYDQMDLQSUHVNXãDQMDURERYLQGURJRYREþXWOMLYLKQDGRWLN
Safety of machinery - Pressure sensitive protective devices - Part 2: General principles
for the design and testing of pressure sensitive edges and pressure sensitive bars
Sicherheit von Maschinen - Druckempfindliche Schutzeinrichtungen - Teil 2: Allgemeine
Leitsätze für die Gestaltung und Prüfung von Schaltleisten und Schaltstangen
Sécurité des machines - Dispositifs de protection sensibles à la pression - Partie 2:
Principes généraux de conception et d'essais des bords et barres sensibles à la pression
Ta slovenski standard je istoveten z: EN 1760-2:2001+A1:2009
ICS:
13.110 Varnost strojev Safety of machinery
SIST EN 1760-2:2002+A1:2009 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 1760-2:2002+A1:2009

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SIST EN 1760-2:2002+A1:2009


EUROPEAN STANDARD
EN 1760-2:2001+A1

NORME EUROPÉENNE

EUROPÄISCHE NORM
April 2009
ICS 13.110 Supersedes EN 1760-2:2001
English Version
Safety of machinery - Pressure sensitive protective devices -
Part 2: General principles for the design and testing of pressure
sensitive edges and pressure sensitive bars
Sécurité des machines - Dispositifs de protection sensibles Sicherheit von Maschinen - Druckempfindliche
à la pression - Partie 2: Principes généraux de conception Schutzeinrichtungen - Teil 2: Allgemeine Leitsätze für die
et d'essais des bords et barres sensibles à la pression Gestaltung und Prüfung von Schaltleisten und
Schaltstangen
This European Standard was approved by CEN on 13 January 2001 and includes Amendment 1 approved by CEN on 22 February 2009.

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 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 Management Centre has the same status as the
official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.






EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1760-2:2001+A1:2009: E
worldwide for CEN national Members.

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SIST EN 1760-2:2002+A1:2009
EN 1760-2:2001+A1:2009 (E)
Contents Page
Foreword .5
Introduction .7
1 Scope .7
2 Normative references .8
3 Terms and definitions . 10
4 Requirements . 17
4.1 Effective sensing surface . 17
4.2 Actuating force (see 7.4 and 7.5 for test method) . 18
4.3 Pre-travel (see 7.6.1 for test method). 18
4.4 Overtravel (see 7.6.3 for test method) . 18
4.5 Working travel (see 7.6.2 for test method) . 18
4.6 Force-travel relationship(s) (see 7.6 for test method). 19
4.7 Minimum operating speed (see 7.5 for test method) . 20
4.8 Number of operations (see 7.7 for test method) . 20
4.8.1 Single sensors (see 7.7.1 for test method) . 20
4.8.2 Combination of sensors (see 7.7.2 for test method) . 20
4.9 Sensor output (see 7.8 for test method) . 20
4.10 Response of output signal switching device to the actuating force (see 7.8 and 7.9 for test
method) . 20
4.10.1 For systems where the sensor output remains in the OFF state for as long as the
actuating force is applied. . 20
4.10.2 For systems where the sensor output does not stay in the OFF state when the actuating
force remains . 21
4.11 Reset function (see 7.9 for test method) . 21
4.12 Environmental conditions (see 7.10 for test method) . 21
4.12.1 Climatic conditions (see 7.10.2 and 7.10.3 for test method) . 21
4.12.2 Electromagnetic compatibility (see 7.10.4 for test method) . 21
4.12.3 Vibration (see 7.10.5 for test method). 22
4.12.4 Bump (see 7.10.6 for test method) . 22
4.13 Power supply variation . 22
4.13.1 Electrical power supply variation (see 7.11.1 for test method) . 22
4.13.2 Non-electrical power supply variations (see 7.11.2 for test method) . 22
4.14 Electrical equipment (see 7.12.1 for test method) . 23
4.14.1 General . 23
4.14.2 Protection against electric shock . 23
4.14.3 Protection against overcurrent . 23
4.14.4 Electromechanical devices . 23
4.14.5 Pollution degree . 23
4.14.6 Clearance, creepage distances and isolating distances . 23
4.14.7 Wiring . 23
4.15 Pneumatic equipment (see 7.12.2 for test method). 23
4.16 Hydraulic equipment (see 7.12.3 for test method) . 23
4.17 Enclosure (see 7.13 for test method) . 24
4.17.1 Sensor . 24
4.17.2 Control unit and output signal switching device . 24
4.18 Additional coverings for sensors (see 7.14 for test method) . 24
4.19 Access (see 7.15 for test method). 24
4.20 Categories according to EN 954-1 (see 7.16 for test method) . 24
4.21 Adjustments (see 7.17 for test method) . 25
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SIST EN 1760-2:2002+A1:2009
EN 1760-2:2001+A1:2009 (E)
4.22 Sensor fixing and mechanical strength (see 7.18 for test method) . 25
4.23 Recovery after deformation (see 7.19 for test method) . 25
4.24 Connections (see 7.20 for test method) . 25
4.25 Sharp corners, sharp edges and rough surfaces (see 7.21 for test method) . 26
4.26 Mechanical features (see 7.22 for test method) . 26
4.27 Inhibition and blocking (see 7.25 for test method) . 26
5 Marking (see 7.23 for test method) . 26
6 Information for selection and use (see 7.3 and 7.24 for test method) . 26
6.1 General . 26
6.2 Essential data for the selection of a suitable device(s) . 26
6.3 Information for use . 27
6.3.1 Information for installation and commissioning . 27
6.3.2 Information relating to the operation of the device . 29
7 Verification of requirements . 30
7.1 Test samples . 30
7.1.1 Sensor. 30
7.1.2 Control units and output signal switching devices . 31
7.2 Test pieces . 31
7.3 Test number 1: Safety-related data for selection, installation, commissioning, operation
and maintenance of a suitable device(s) (see 6.2 and 6.3) . 31
7.4 Test number 2: Mounting orientations of sensors (see 3.20 and figure 5) . 31
7.4.1 Edge sensors . 31
7.4.2 Bar sensors . 32
7.5 Test number 3: Actuating force (requirements see 4.2) . 32
7.5.1 Single sensor at 20 ˚C . 32
7.5.2 Combination of sensors at 20 ˚C . 34
7.5.3 Single sensor over the operating temperature range . 36
7.5.4 Combination of sensors over the operating temperature range . 36
7.6 Test number 4: Force-travel relationship(s) (requirements see 4.6) . 38
7.6.1 Pre-travel (requirements see 4.3) . 38
7.6.2 Working travel (requirements see 4.5) . 38
7.6.3 Overtravel (requirements see 4.4) . 38
7.7 Test number 5: Number of operations (requirements see 4.8) . 39
7.8 Test number 6: Output state of the sensor and the output signal switching device
(requirements see 4.9 and 4.10) . 39
7.9 Test number 7: Response of output signal switching device to the actuating force, the
reset and the state of the power supply (requirements see 4.10 and 4.11) . 39
7.10 Test number 8: Environmental tests (requirements see 4.12) . 40
7.10.1 Functional test . 40
7.10.2 Test number 8.1: Operating temperature range (requirements see 4.12.1) . 40
7.10.3 Test number 8.2: Humidity (requirements see 4.12.1) . 40
7.10.4 Test number 8.3: Electromagnetic compatibility (requirements see 4.12.2) . 40
7.10.5 Test number 8.4: Vibration (requirements see 4.12.3) . 41
7.10.6 Test number 8.5: Bump (requirements are only for bars: see 4.12.4) . 41
7.11 Test number 9: Power supply variation (requirements see 4.13) . 42
7.11.1 Test number 9.1: Electrical power supply variation (requirements see 4.13.1) . 42
7.11.2 Test 9.2: Non-electric power supply variations (requirements see 4.13.2) . 42
7.12 Test number 10: Electrical, pneumatic and hydraulic equipment (requirements see 4.14,
4.15 and 4.16) . 42
7.12.1 Test number 10.1: Electrical equipment (requirements see 4.14) . 42
7.12.2 Test number 10.2: Pneumatic equipment (requirements see 4.15) . 42
7.12.3 Test number 10.3: Hydraulic equipment (requirements see 4.16). 42
7.13 Test number 11: Enclosure (requirements see 4.17) . 42
7.14 Test number 12: Additional coverings for sensors (requirements see 4.18) . 43
7.15 Test number 13: Access (requirements see 4.19) . 43
7.16 Test number 14: Category(ies) (requirements see 4.20) . 43
7.17 Test number 15: Adjustments (requirements see 4.21) . 43
7.18 Test number 16: Sensor fixing (requirements see 4.22) . 43
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SIST EN 1760-2:2002+A1:2009
EN 1760-2:2001+A1:2009 (E)
7.19 Test number 17: Recovery after deformation (requirements see 4.23) . 43
7.20 Test number 18: Connections (requirements see 4.24) . 43
7.21 Test number 19: Sharp corners, sharp edges and rough surfaces (requirements see 4.25) . 44
7.22 Test number 20: Mechanical features (requirements see 4.26) . 44
7.23 Test number 21: Marking (requirements see clause 5). 44
7.24 Test number 22: Information for selection and use (requirements see clause 6) . 44
7.25 Test number 23: Inhibition and blocking (requirements see 4.27) . 44
Annex A (normative) Timing diagrams for devices with and without reset . 45
Annex B (informative) Explanatory notes . 49
Annex C (informative) Notes to the machinery manufacturer/user . 51
C.1 Introduction . 51
C.2 Selection of suitable devices . 51
C.2.1 General . 51
C.2.2 Selection procedure . 51
Annex D (informative) Design notes . 53
D.1 General . 53
D.1.1 Frequency of operation . 53
D.1.2 Components . 53
D.1.3 Affects of liquid . 53
D.2 Pressure sensitive edges . 53
D.2.1 Profile material . 53
D.2.2 Sensor sensitivity . 53
D.2.3 Physical effects . 53
D.2.4 Pressure sensitive edges with electric sensors . 54
D.2.5 Pressure sensitive edges with air pulse sensors. 54
D.2.6 Pressure sensitive edges with fibre optic sensors . 54
D.3 Pressure sensitive bars . 55
D.3.1 Use of position detection switches. 55
D.3.2 Trap points . 55
Annex E (informative) Application notes . 56
E.1 Sensor mounting . 56
E.2 Environmental considerations . 56
E.3 Sensor positioning . 56
Annex F (informative) Installation, commissioning and test . 57
F.1 System information . 57
F.2 Commissioning . 57
F.3 Regular inspection and tests . 58
F.4 Inspection and tests after maintenance . 58
Annex G (informative) General considerations for systems meeting category 2 according to
EN 954-1 . 59
Annex ZA (informative) Clauses of this European Standard addressing essential requirements or
other provisions of EU directives . 60
Annex ZB (informative) !Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC" . 61
Bibliography . 62

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SIST EN 1760-2:2002+A1:2009
EN 1760-2:2001+A1:2009 (E)
Foreword
This document (EN 1760-2:2001+A1:2009) has been prepared by 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 October 2009, and conflicting national standards shall be withdrawn at
the latest by December 2009.
This document includes Amendment 1, approved by CEN on 2009-02-22.
This document supersedes EN 1760-2:2001.
The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ".
This European Standard 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(s), see informative Annexes ZA and ZB, which are integral parts of this
document."
This is the second part of a multi-part type B Standard which will cover safety devices that detect the presence
of a person through the application of a pressure or force by a part of the person's body. After actuation the
safety devices give a stop command which is used by the control system of the machine to provide protection
for the person who caused the device to be actuated.
The other parts of the standard cover:
Part 1: Safety of machinery - Pressure sensitive protective devices - General principles for the design and
testing of pressure sensitive mats and pressure sensitive floors.
Part 3: Safety of machinery - Pressure sensitive protective devices - General principles for the design and
testing of pressure sensitive bumpers and plates including pressure sensitive wires and barriers !deleted
text".
Normative annex A presents timing diagrams for devices with and without reset. Informative annex B explains
the relationship between operating speed, the force exerted on the body and the distance travelled by the
device following actuation. The notes in informative annex C provide guidance to users on the selection of a
suitable device. It is recommended that the supplier and customer liaise to examine carefully the constraints
presented by the application before placing an order for the equipment.
The safeguarding of machinery !(see 3.20 of EN ISO 12100-1:2003)" can be achieved by many different
means. These means include guards which prevent access to the hazard zone by means of a physical barrier
(e.g. fixed guards to EN 953 and interlocking guards to EN 1088); and protective devices, (e.g. electro-
sensitive protective equipment to !EN 61496-1, CLC/TS 61496-2 and CLC/TS 61496-3" and pressure-
sensitive protective devices to this standard).
Type C standards makers and designers of machinery / installations should consider the best way to achieve
the required level of safety taking into account the intended application and the results of the risk assessment
(see !EN ISO 14121-1"). The best solution may combine several of these different means. It is
recommended that the machinery / installation supplier and the user examine together carefully the existing
constraints before making their decision on the choice of safeguarding means.
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SIST EN 1760-2:2002+A1:2009
EN 1760-2:2001+A1:2009 (E)
The notes in informative annex D give guidance regarding the design of pressure sensitive edges and
pressure sensitive bars. Informative annex E gives guidance on the application of pressure sensitive edges
and pressure sensitive bars. Informative annex F gives guidance on installation, commissioning and testing.
Informative annex G covers general considerations for meeting category 2 according to EN 954-1.
This European Standard does not specify the dimensions or the configuration of the effective sensing surface
of pressure sensitive edges or pressure sensitive bars in relation to any particular application. However, there
is a requirement for the manufacturer of any safety device to provide sufficient information to enable the user
(i.e. the machinery manufacturer and / or the user of the machinery) to specify an adequate arrangement.
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and United Kingdom.

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SIST EN 1760-2:2002+A1:2009
EN 1760-2:2001+A1:2009 (E)
Introduction
!Pressure sensitive edges and pressure sensitive bars are safety devices of the "mechanically actuated trip
device" type. General requirements for these devices (as well as other safety devices) are given in 5.1 and 5.2
of EN ISO 12100-2:2003."
Pressure sensitive edges and bars are used in a wide range of applications with different conditions of use
relating, for example, to loading, electrical, physical and chemical environments. They are interfaced with
machine controls to ensure that the machine reverts to a safe condition if the device is act
...