SIST EN 1760-1:2000+A1:2009

SLOVENSKI STANDARD
SIST EN 1760-1:2000+A1:2009
01-maj-2009
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SIST EN 1760-1:2000
9DUQRVWVWURMHY9DURYDOQHQDSUDYHREþXWOMLYHQDWODNGHO6SORãQDQDþHOD
QDþUWRYDQMDLQSUHVNXãDQMDSUHSURJLQSRGRYREþXWOMLYLKQDWODN
Safety of machinery - Pressure sensitive protective devices - Part 1: General principles
for the design and testing of pressure sensitive mats and pressure sensitive floors
Sicherheit von Maschinen - Druckempfindliche Schutzeinrichtungen - Teil 1: Allgemeine
Leitsätze für die Gestaltung und Prüfung von Schaltmatten und Schaltplatten
Sécurité des machines - Dispositifs de protection sensibles à la pression - Partie 1:
Principes généraux de conception et d'essai des tapis et planchers sensibles à la
pression
Ta slovenski standard je istoveten z: EN 1760-1:1997+A1:2009
ICS:
13.110 Varnost strojev Safety of machinery
SIST EN 1760-1:2000+A1:2009 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 1760-1:2000+A1:2009

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SIST EN 1760-1:2000+A1:2009


EUROPEAN STANDARD
EN 1760-1:1997+A1

NORME EUROPÉENNE

EUROPÄISCHE NORM
April 2009
ICS 13.110 Supersedes EN 1760-1:1997
English Version
Safety of machinery - Pressure sensitive protective devices -
Part 1: General principles for the design and testing of pressure
sensitive mats and pressure sensitive floors
Sécurité des machines - Dispositifs de protection sensibles Sicherheit von Maschinen - Druckempfindliche
à la pression - Partie 1: Principes généraux de conception Schutzeinrichtungen - Teil 1: Allgemeine Leitsätze für die
et d'essai des tapis et planchers sensibles à la pression Gestaltung und Prüfung von Schaltmatten und
Schaltplatten
This European Standard was approved by CEN on 26 March 1997 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 1760-1:1997+A1:2009: E
worldwide for CEN national Members.

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SIST EN 1760-1:2000+A1:2009
EN 1760-1:1997+A1:2009 (E)
Contents Page
Foreword .4
Introduction .6
1 Scope .6
2 Normative references .6
3 Definitions .8
4 Requirements . 10
4.1 General . 10
4.2 Actuating force . 10
4.3 Response time (see 7.5 for test method) . 12
4.4 Static loading (see 7.6 for test method) . 13
4.5 Number of operations (see 7.7 for test method) . 13
4.6 The output state of the sensor (see 7.8 for test method) . 13
4.7 Response of output signal switching device(s) to the actuating force (see 7.9 for test
method) . 13
4.8 Access for maintenance (see 7.10 for test method). 14
4.9 Adjustments (see 7.11 for test method) . 14
4.10 Connections (see 7.12 for test method) . 14
4.11 Environmental conditions (see 7.13 for test method) . 14
4.12 Power supply . 15
4.13 Electrical equipment (see 7.15 for test method) . 16
4.14 Enclosure (see 7.16 for test method) . 16
4.15 Categories for safety-related parts of control systems according to EN 954 (see 7.17 for
test method) . 17
4.16 Sensor fittings (see 7.1.2 for test method) . 17
4.17 Tripping (see 7.1.2 for test method) . 17
4.18 Slipperiness and softness of the sensor top surfaces (see 7.18 for test method) . 17
4.19 Additional coverings of top surfaces of sensor(s) (see 7.19 for test method) . 17
4.20 Failure due to blocking or wedging (see 7.20 for test method) . 17
5 Marking (see 7.1.2 for test method) . 18
5.1 The pressure sensitive mat or pressure sensitive floor shall be marked in accordance with
)
!6.4 of EN ISO 12100-2:2003, 6.4 b) of EN ISO 12100-2:2003/prA1:2008" and 18.1 of EN
60204-1:1992. . 18
5.2 Marking of the control unit . 18
5.3 Marking of the sensor . 18
5.4 All labels and markings shall be securely fixed and durable for the expected lifetime of the part
of the pressure sensitive mat or pressure sensitive floor to which it is attached (see EN 61310-
2). . 18
5.5 Component parts of the pressure sensitive mat or pressure sensitive floor that can be replaced
in accordance with the information for use shall be identifiable. . 18
6 Information for use . 18
6.1 General . 18
6.2 Instructions for use (see 7.1.2 for test method) . 18
7 Testing . 21
7.1 General . 21
7.2 Sensor test sample . 21
7.3 Test pieces for load tests . 22
7.4 Test no. 1 – Actuating force (requirements see 4.2) . 22
7.5 Test no. 2 – Response time (requirement see 4.3) . 26
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7.6 Test no. 3 – Static loading (requirements see 4.4) . 27
7.7 Test no. 4 – Number of operations (requirements see 4.5) . 28
7.8 Test no. 5 – Output state of the sensor (requirements see 4.6) . 32
7.9 Test no. 6 – Response of output signal switching device to the actuating force
(requirements see 4.7) . 33
7.10 Test no. 7 – Access for maintenance (requirements see 4.8) . 33
7.11 Test no. 8 – Adjustments (requirements see 4.9) . 33
7.12 Test no. 9 – Connections (requirements see 4.10) . 33
7.13 Test no. 10 – Environmental conditions (requirements see 4.11) . 33
7.14 Test no. 11 – Electrical power supply (requirements see 4.12.1) . 35
7.15 Test no. 12 – Electrical equipment (requirements see 4.13) . 35
7.16 Test no. 13 – Enclosure (requirements see 4.14) . 35
7.17 Test no. 14 – Categories for safety-related parts of control systems according to EN 954
(requirements see 4.15) . 35
7.18 Test no. 15 – Slipperiness and softness of the sensor top surfaces (requirements see
4.18) . 35
7.19 Test no. 16 – Additional coverings of top surfaces of sensor(s) (requirements see 4.19) . 35
7.20 Test no. 17 – Failure due to blocking or wedging (requirements see 4.20) . 35
Annex A (normative) Timing diagrams for devices with and without reset . 36
Annex B (informative) Application notes . 39
B.1 Mounting surface (location) . 39
B.2 Size of the sensor . 39
B.3 Selection criteria . 39
B.4 Comparison between good and poor installation design . 41
Annex C (informative) Design notes . 43
C.1 General conditions . 43
C.2 Pressure sensitive mats . 43
C.3 Pressure sensitive floors . 45
Annex D (informative) Installation, commissioning and test . 48
D.1 General . 48
D.2 Installation . 48
D.3 Commissioning . 48
D.4 Regular inspection and tests . 49
D.5 Tests after maintenance . 49
Annex E (informative) Bibliography . 50
Annex ZA (informative) !Relationship between this European Standard and the Essential
Requirements of EU Directive 98/37/EC" . 51
Annex ZB (informative) !Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC" . 52

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SIST EN 1760-1:2000+A1:2009
EN 1760-1:1997+A1:2009 (E)
Foreword
This document (EN 1760-1:1997+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 1760-1:1997.
The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ".
!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(s), see informative Annexes ZA and ZB, which are integral parts of this
document."
This is the first 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 will cover:
Part 2: General principles for the design and testing of pressure sensitive edges and pressure sensitive
bars (in preparation)
Part 3: General principles for the design and testing of pressure sensitive bumpers (in preparation)
The informative annex A presents timing diagrams for devices with and without reset. The notes in informative
annex B provide guidance regarding application. 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 danger 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" 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.
The notes in informative annex C give guidance regarding the design of pressure sensitive mats and pressure
sensitive floors. Informative annex D gives guidance for installation, commissioning and testing. Informative
annex E contains bibliography.
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EN 1760-1:1997+A1:2009 (E)
This European Standard does not specify the dimensions or the configuration of the effective sensing area of
pressure sensitive mat(s) or floor(s) in relation to any particular application. However, there is a requirement
for the manufacturer of the 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.
!deleted text"
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 1760-1:2000+A1:2009
EN 1760-1:1997+A1:2009 (E)
Introduction
Pressure sensitive protective devices are used in a wide variety of applications with different conditions of use
relating, for example, to extremes of loading, electrical, physical and chemical environments. They are
interfaced with the machine controls to ensure that the machine reverts to a safe condition if the pressure
sensitive device is actuated.
Each type of application presents particular hazards. It is not the intention of this standard to identify those
hazards nor to recommend specific methods of application to particular machines. This is normally the
function of machine specific standards.
1 Scope
This Standard specifies requirements for pressure sensitive mats and floors normally actuated by the feet for
use as safety devices to protect persons from dangerous machinery. The minimum safety requirements for
the performance, marking and documentation are given.
The Standard covers pressure sensitive mats and floors, regardless of type of energy used, e.g. electrical,
hydraulic, pneumatic or mechanical.
This standard covers mats and floors designed to detect:
a) Persons weighing more than 35 kg;
b) And persons (e.g. children) weighing more than 20 kg.
The detection of persons weighing less than 20 kg is not covered by this standard.
This European Standard does not specify the dimensions or the configuration of the effective sensing area of
pressure sensitive mat(s) or floor(s) in relation to any particular application.
2 Normative references
!The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies."
!deleted text"
!EN 953:1997, Safety of machinery – Guards – General requirements for the design and construction of
fixed and movable guards"
EN 954-1:1996, Safety of machinery – Safety-related parts of control systems – Part 1: General principles for
design
EN 982:1996, Safety of machinery – Safety requirements for fluid power systems and their components -
Hydraulics
EN 983:1996, Safety of machinery – Safety requirements for fluid power systems and their components –
Pneumatics
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SIST EN 1760-1:2000+A1:2009
EN 1760-1:1997+A1:2009 (E)
!EN 999", Safety of machinery – The positioning of protective equipment in respect of approach speeds
of parts of the human body
!deleted text"
EN 1088:1995, Safety of machinery – Interlocking devices associated with guards – Principles for design and
selection
!deleted text"
EN 50081, Electromagnetic compatibility – Generic emission standard
EN 50082, Electromagnetic compatibility – Generic immunity standard
EN 60204-1:1992, Safety of machinery; electrical equipment of machines; part 1: general requirements
(IEC 204-1:1992, modified)
EN 60439-1:1994, Low-voltage switchgear and controlgear assemblies; part 1: type-tested and partially type-
tested assemblies (IEC 439-1:1992 + corrigendum 1993)
EN 60529, Degrees of protection provided by enclosures (IP code) (IEC 529:1989)
EN 61000-4-2, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques –
Section 2: Electrostatic discharge immunity test – Basic EMC publication (IEC 1000-4-2:1995)
EN 61000-4-3, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques –
Section 3: Radiated, radio-frequency, electromagnetic field immunity test (IEC 1000-4-3:1995, modified)
EN 61000-4-4, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques –
Section 4: Electrical fast transient/burst immunity test – Basic EMV publication (IEC 1000-4-4:1995)
EN 61000-4-5, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques –
Section 5: Surge immunity test (IEC 1000-4-5:1995)
EN 61310-2, Safety of machinery – Indication, marking and actuation – Part 2: Requirements for marking
(IEC 1310-2:1995)
!EN ISO 12100-1:2003, Safety of machinery – Basic concepts, general principles for design – Part 1: Basic
terminology, methodology (ISO 12100-1:2003)
EN ISO 12100-2:2003, Safety of machinery – Basic concepts, general principles for design – Part 2: Technical
principles (ISO 12100-2:2003)"
!EN ISO 14121-1, Safety of machinery – Risk assessment – Part 1: Principles (ISO 14121-1:2007)"
!EN ISO 14122-2, Safety of machinery – Permanent means of access to machinery – Part 2: Working
platforms and walkways (ISO 14122-2:2001)"
IEC 68-2-3:1969, Basic environmental testing procedures – Part 2: Tests. Test Ca: Damp heat, steady state
IEC 68-2-6:1995, Environmental testing – Part 2: Tests – Test Fc: Vibration (sinusoidal)
IEC 68-2-14:1984, Basic environmental testing procedures – Part 2: Tests. Test N: Change of temperature
ISO 6431:1992, Pneumatic fluid power; single rod cylinders, 1000 kPa (10 bar) series, with detachable
mountings, bores from 32 mm to 320 mm; mounting dimensions
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EN 1760-1:1997+A1:2009 (E)
3 Definitions
!For the purposes of this document, the terms and definitions given in EN ISO 12100-1:2003 and the
following apply."
3.1
pressure sensitive mat
a safety device !(see 3.26.5 of EN ISO 12100-1:2003)" which detects a person standing on it or who
steps onto it. It comprises a sensor(s) which responds to the application of pressure and a control unit, and
one or more output signal switching device(s) (see figure 1).
In a pressure sensitive mat the effective sensing area is deformed locally when the sensor(s) is actuated.
3.2
pressure sensitive floor
a safety device !(see 3.26.5 of EN ISO 12100-1:2003)" which detects a person standing on it or who
steps onto it. It comprises a sensor(s) which responds to the application of pressure and a control unit, and
one or more output signal switching device(s).
In a pressure sensitive floor the effective sensing area is moved as a whole when the sensor(s) is actuated.
3.3
sensor
that part of the pressure sensitive mat or pressure sensitive floor which contains an effective sensing area on
which the application of an actuating force causes the signal from the sensor to the control unit to change
state
3.4
effective sensing area
that part of the top surface area of the sensor or a combination of sensors of the pressure sensitive mat or
pressure sensitive floor within which a response to an actuating force (see 4.2) will take place
3.5
control unit
The device that responds to the condition of the sensor(s) and controls the state of the output signal switching
device. It may also monitor the integrity of the pressure sensitive mat or pressure sensitive floor (see
reference to categories EN 954-1) and it may contain facilities to process a reset signal. The control unit may
be integrated with the machine control system.
3.6
output signal switching device
That part of the pressure sensitive mat or pressure sensitive floor which when the sensor or monitoring
function means is actuated responds by producing an OFF state. The output signal switching device may be
integrated with the machine control system.
3.7
actuating force
any force which produces a pressure on the effective sensing area to create an OFF state in the output signal
switching device
3.8
reset
the function which permits an ON state in the output signal switching devices, providing that certain conditions
are met
3.9
ON state of output signal switching device(s)
a state where the output circuit(s) is complete and the flow of current or fluid is interrupted
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3.10
OFF state of output signal switching device(s)
a state where the output circuit(s) is broken and the flow of current or fluid is interrupted
3.11
response time
the time between the start of the application of a force to the effective sensing area and the start of the OFF
state of the output signal switching device (see 4.3)
3.12
dead zone
that part of the top surface area of the sensor outside the effective sensing area


1 Pressure sensitive mat or floor output signal processing
6 Actuating force
7 Sensor output
8 ON state/OFF state signal
9 Manual reset signal (where appropriate alternative to A)
10 Reset signal from machine control system (where appropriate)
11 Monitoring signals (optional)
A Manual reset signal to the machine control system (where appropriate alternative to 9).
a Machine control system(s)
Figure 1 — Pressure sensitive mat or pressure sensitive floor interfaced with a machine
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EN 1760-1:1997+A1:2009 (E)
4 Requirements
4.1 General
Pressure sensitive mats and pressure sensitive floors shall be able to detect a person who is standing on, or
who steps onto the effective sensing area.
4.2 Actuating force
4.2.1 Single sensor (see 7.4.1 and 7.4.2 for test method)
The pressure sensitive mat or pressure sensitive floor shall not respond to the actuating forces stated in table
1 when the test piece (see figure 2) is applied over the effective sensing area at a maximum speed of 2 mm/s
within the operating temperature range.
Test pieces 1, 2 and 3 apply to pressure sensitive mats and pressure sensitive floors designed to detect
persons weighing more than 35 kg. Test piece 4 shall additionally be applied to pressure sensitive mats and
pressure sensitive floors designed to detect persons (e.g. children) weighing more than 20 kg.
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SIST EN 1760-1:2000+A1:2009
EN 1760-1:1997+A1:2009 (E)
Table 1 — Actuating force

Application Test piece Actuating force
Number d N
mm
For pressure sensitive 1 11 300
mats and pressure
2 80 300
sensitive floors designed
3 200 600
to detect persons
weighing more than
35 kg
Additional test for 4 40 150
pressure sensitive mats
and pressure s
...