EN 15163-2:2022

SLOVENSKI STANDARD
01-september-2022
Nadomešča:
SIST EN 15163:2017
Stroji in oprema za pridobivanje in obdelavo naravnega kamna - Varnost - 2. del:
Zahteve za premične enožične diamantne žage
Machines and installations for the exploitation and processing of natural stone - Safety -
Part 2: Requirements for transportable diamond wire saws
Maschinen und Anlagen zur Gewinnung und Bearbeitung von Naturstein - Sicherheit -
Teil 2: Anforderungen für mobile Diamantseilsägen
Machines et installations pour l'exploitation et la transformation de la pierre naturelle -
Sécurité - Partie 2 : Prescriptions pour les scies à fil diamanté transportables
Ta slovenski standard je istoveten z: EN 15163-2:2022
ICS:
25.100.40 Žagni listi Saws
73.120 Oprema za predelavo rudnin Equipment for processing of
minerals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 15163-2
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2022
EUROPÄISCHE NORM
ICS 73.120 Supersedes EN 15163:2017
English Version
Machines and installations for the exploitation and
processing of natural stone - Safety - Part 2: Requirements
for transportable diamond wire saws
Machines et installations pour l'exploitation et la Maschinen und Anlagen zur Gewinnung und
transformation de la pierre naturelle - Sécurité - Partie Bearbeitung von Naturstein - Sicherheit - Teil 2:
2 : Prescriptions pour les scies à fil diamanté Anforderungen für mobile Diamantseilsägen
transportables
This European Standard was approved by CEN on 27 March 2022.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15163-2:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 8
4 Safety requirements and/or protective/risk reduction measures . 22
4.1 General . 22
4.2 Controls . 22
4.2.1 Safety and reliability of control systems . 22
4.2.2 Position of controls . 22
4.2.3 Starting . 23
4.2.4 Normal stop . 24
4.2.5 Emergency stop . 24
4.2.6 Mode selection . 25
4.2.7 Failure of power supply . 26
4.3 Protection against mechanical hazards . 26
4.3.1 Transport of the machine . 26
4.3.2 Installation and stability of machine . 26
4.3.3 Tool changing . 26
4.3.4 Wire tension system . 27
4.3.5 Safety requirements to minimize risks of whiplash and ejection of parts . 27
4.3.6 Guarding of transmission parts . 32
4.3.7 Requirements for guard materials . 33
4.4 Protections against no mechanical hazards . 33
4.4.1 Fire. 33
4.4.2 Noise . 33
4.4.3 Electrical hazards . 34
4.4.4 Ergonomics and handling . 34
4.4.5 Hydraulic and pneumatic components . 35
4.4.6 Electromagnetic compatibility . 35
4.4.7 Isolation from energy sources . 35
4.4.8 Lightning . 36
4.4.9 Maintenance . 36
5 Information for use . 36
5.1 General . 36
5.2 Signals and warning devices . 36
5.3 Marking, signs and written warnings . 36
5.4 Instruction handbook . 37
5.4.1 General . 37
5.4.2 Operator’s instructions . 37
5.4.3 Maintenance instructions . 39
Annex A (informative) List of significant hazards . 41
Annex B (normative) Safety distances for transportable diamond wire saws . 43
B.1 Safety distances with belt provided . 43
B.2 Safety distances without belt provided . 45
Annex C (normative) Noise test code . 48
C.1 Introduction. 48
C.2 Measurement of the A-weighted emission sound pressure level at the operator's
positions or other specified positions . 48
C.2.1 Basic standards . 48
C.2.2 Measurement procedure and positions . 48
C.2.3 Measurement uncertainty . 49
C.3 Determination of A-weighted sound power level . 49
C.3.1 Measurement procedure and positions . 49
C.3.2 Measurement uncertainty . 49
C.4 Installation, mounting and operating conditions for noise emission measurement . 50
C.5 Information to be recorded and reported . 50
C.6 Declaration and verification of noise emission values . 53
C.6.1 General . 53
C.6.2 Example of a declaration of noise emission values in the instruction handbook for
transportable diamond wire saws . 54
Annex D (normative) Rigid guards on transportable diamond wire saws - Impact test
method . 56
D.1 General . 56
D.2 Test method . 56
D.2.1 Preliminary remarks . 56
D.2.2 Testing equipment . 56
D.2.2.1 General . 56
D.2.2.2 Projectiles . 56
D.2.2.3 Sampling and supporting the guard under test . 57
D.2.3 Test procedure . 57
D.3 Results . 57
D.4 Assessment. 58
D.5 Test report . 58
D.6 Example of propulsion device for impact test . 58
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered . 59
Bibliography . 62

European foreword
This document (EN 15163-2:2022) has been prepared by Technical Committee CEN/TC 151
“Construction equipment and building material machines - Safety”, 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 December 2022, and conflicting national standards shall
be withdrawn at the latest by December 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 15163:2017.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation(s).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral part
of this document.
This document deals with safety requirements of transportable diamond wire saws previously treated in
EN 15163:2017 with safety requirements of stationary diamond wire saws, now treated in
EN 15163-1:2022. As safety requirements related two types of machines have been separated, this
standard edition is completely different from the previous one.
Safety requirements treated in Clause 4, information for use treated in Clause 5 and related annexes have
been deeply modified, in addition, the following changes have been introduced:
— list of the significant hazards has been moved from Clause 4 to Annex A, according to 6.10.3.1 of
CEN Guide 414;
— normative references have been modified and updated to Clause 2;
— new terms and definitions have been introduced and improved to Clause 3 (e.g. transportable
diamond wire saw; coated diamond wire, cutting operations);
— Annex ZA has been modified according to the last edition of CEN Guide 414.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
Introduction
This document has been prepared to be a harmonized standard to provide one means of conforming to
the essential health and safety requirements of the Machinery Directive and associated EFTA Regulations.
This document is a type-C standard as stated in EN ISO 12100.
This document is of relevance, in particular, for the following stakeholder groups representing the market
players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organizations, market surveillance, etc.).
Others can be affected by the level of machinery safety achieved with the means of the document by the
above-mentioned stakeholder groups:
— machine users/employers (small, medium and large enterprises);
— machine users/employees (e.g. trade unions, organizations for people with special needs);
— service providers, e.g. for maintenance (small, medium and large enterprises);
— consumers (in case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate at the drafting
process of this document.
The machinery concerned and the extent to which hazards, hazardous situations or hazardous events are
covered are indicated in the scope of this document.
When requirements of this type-C standard are different from those which are stated in type-A or type-B
standards, the requirements of this type-C standard take precedence over the requirements of the other
standards for machines that have been designed and built according to the requirements of this type-C
standard.
1 Scope
This document deals with all significant hazards, hazardous situations and events which are relevant to
transportable diamond wire saws, used in quarries for cutting natural stones (e.g. marble, granite), when
they are used as intended and under conditions of misuse which are reasonably foreseeable by the
manufacturer (see Annex A).
For this document, the intended use of machine is limited by the following cutting operations, defined in
Clause 3:
1) vertical cut (see 3.16);
a) mountain vertical cut (see 3.16.1);
b) mountain side vertical cut (see 3.16.2);
c) block vertical cut (see 3.16.3);
d) overhead underslung vertical cut (see 3.16.4);
2) horizontal cut (see 3.17);
a) horizontal cut with one side open (see 3.17.1);
b) horizontal cut with two sides open (see 3.17.2);
3) block inclined cut (see 3.18).
Cutting operations listed above are performed without any path variation (see 3.11).
This document does not deal with any other cutting operation not listed above or defined in Clause 3.
This document deals only with transportable diamond wire saws using coated diamond wire as tool.
This document specifies the appropriate technical measures to eliminate or reduce risks arising from the
significant hazards.
This document deals with all significant hazards that could occur within the expected lifetime of the
machinery including the phases of transport, assembly, dismantling, disabling and scrapping.
This document does not deal with the significant hazards arising by the use of other facilities/devices not
described in this document, that could be fitted on the machines or that could be used during the work
cycle.
This document does not apply to:
i) machines intended for operation in a potentially explosive atmosphere;
ii) machines which are manufactured before the date of publication of this document.
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.
EN 1005-2:2003+A1:2008, Safety of machinery — Human physical performance — Part2: Manual
handling of machinery and component parts of machinery
EN 1005-4:2005+A1:2008, Safety of machinery — Human physical performance — Part4: Evaluation of
working postures and movements in relation to machinery
EN 50370-2:2003, Electromagnetic compatibility (EMC) — Product family standard for machine tools —
Part2: Immunity
EN 60204-1:2018, Safety of machinery — Electrical equipment of machines — Part1: General requirements
(IEC 60204-1:2016)
EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)
EN 61310-1:2008, Safety of machinery — Indication, marking and actuation — Part 1: Requirements for
visual, acoustic and tactile signals (IEC 61310-1:2007)
EN ISO 3744:2010, Acoustics — Determination of sound power levels and sound energy levels of noise
sources using sound pressure — Engineering methods for an essentially free field over a reflecting plane
(ISO3744:2010)
EN ISO 3746:2010, Acoustics — Determination of sound power levels and sound energy levels of noise
sources using sound pressure — Survey method using an enveloping measurement surface over a reflecting
plane (ISO3746:2010)
EN ISO 4413:2010, Hydraulic fluid power — General rules and safety requirements for systems and their
components (ISO4413:2010)
EN ISO 4414:2010, Pneumatic fluid power — General rules and safety requirements for systems and their
components (ISO4414:2010)
EN ISO 4871:2009, Acoustics — Declaration and verification of noise emission values of machinery and
equipment (ISO4871:1996)
EN ISO 11201:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission
sound pressure levels at a work station and at other specified positions in an essentially free field over a
reflecting plane with negligible environmental corrections (ISO11201:2010)
EN ISO 11202:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission
sound pressure levels at a work station and at other specified positions applying approximate environmental
corrections (ISO11202:2010)
As impacted by EN 60529:1991/AC:2006-12, EN 60529:1991/A1:2000, EN 60529:1991/A2:2013 and EN
60529:1991/A2:2013/AC:2019-02.
EN ISO 11204:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission
sound pressure levels at a work station and at other specified positions applying accurate environmental
corrections (ISO11204:2010)
EN ISO 11688-1:2009, Acoustics — Recommended practice for the design of low-noise machinery and
equipment — Part1: Planning (ISO/TR11688-1:1995)
EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk
reduction (ISO12100:2010)
EN 13236:2019, Safety requirements for superabrasive products
EN ISO 13849-1:2015, Safety of machinery — Safety-related parts of control systems — Part1: General
principles for design (ISO13849-1:2015)
EN ISO 13850:2015, Safety of machinery — Emergency stop function — Principles for design
(ISO13850:2015)
EN ISO 14118:2018, Safety of machinery — Prevention of unexpected start-up (ISO14118:2017)
EN ISO 14120:2015, Safety of machinery — Guards — General requirements for the design and
construction of fixed and movable guards (ISO14120:2015)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
transportable diamond wire saw
integrated fed machine, generally used in quarries or similar sites, designed for cutting natural stones
(e.g. marble, granite) by the use of a coated diamond wire as tool and intended to be easily transported
to several points of the quarry by the use of appropriate provisions and other machines; transportable
diamond wire saw is powered by an electric motor as main drive, for cutting natural stones into benches,
blocks using an only coated diamond wire as tool and where the cutting is performed by the movement
of the wire joined to moving back of the machine on its rail
Note 1 to entry: See Figures 1 to 3.
Note 2 to entry: Transportable diamond wire saws are generally intended for outdoor use, usually in quarries.
Note 3 to entry: During the cutting operation, the coated diamond wire can be cooled by water.
Safeguarding devices are not illustrated
Key
1 machine frame 4 idle wheels 7 rail
2 machine head 5 guide wheels 8 main control panel
3 coated diamond wire 6 drive wheel 9 additional control panel
Figure 1 — Example of a transportable diamond wire saw

Safeguarding devices are not illustrated
Key
1 machine head
Figure 2 — Example of machine head rotation
Safeguarding devices are not illustrated
Key
1 machine head
Figure 3 — Example of transversal movement of machine head
3.2
drive wheel
power transmission wheel which allows the rotation of the tool
Note 1 to entry: See Figure 1.
3.3
guide wheel
not driven wheel mounted on the machine frame which guides the tool entering and exiting the main
drive wheel
Note 1 to entry: See Figure 1.
3.4
main control panel
panel including the principal controls of the machine
Note 1 to entry: See Figure 1.
3.5
additional control panel
panel including only machine setting operation controls
Note 1 to entry: See Figure 1.
3.6
safety function
function of the machine the failure of which can result in an immediate increase of the risk(s)
[SOURCE: EN ISO 12100:2010, 3.30]
3.7
safety-related part of a control system
SRP/CS
part of a control system that responds to safety-related input signals and generates safety-related output
signals
Note 1 to entry: The combined safety-related parts of a control system start at the point where the safety-related
input signals are initiated (including for example the actuating cam and the roller of the position switch) and end at
the output of the power control elements (including for example the main contacts of the contactor).
Note 2 to entry: If monitoring systems are used for diagnostics, they are also considered as SRP/CS.
[SOURCE: EN ISO 13849-1:2015, 3.1.1]
3.8
performance level PL
discrete level used to specify the ability of safety-related parts of control systems to perform a safety
function under foreseeable conditions
[SOURCE: EN ISO 13849-1:2015, 3.1.23]
3.9
coated diamond wire
plastic or rubber assembled diamond wire injected with polymer with no modification of the supporting
steel cable section and used as a tool during the cutting
Note 1 to entry: See Figure 4.
Note 2 to entry: The polymer, penetrating inside the strands under the threaded diamond beads creates a biting
effect between the steel wire and the beads, reducing the probability of ejection of them in case of whiplash (3.18).

Key
1 steel wire 3 thermoplastic polymer or vulcanized rubber
2 diamond beads 4 spring
Figure 4 — Example of a coated diamond wire
3.10
cutting plane
physical or virtual surface bounded by the coated diamond wire
Note 1 to entry: See Figures 5 to 12.
3.11
path variation
changing of coated diamond wire path such as to create more than one cutting plane
Note 1 to entry: See Figure 5.

Key
1 first cutting plane 3 path variation
2 second cutting plane
Figure 5 — Example of path variation
3.12
whiplash
dangerous movement of the diamond wire that can generate risk of impact and/or ejection of parts of the
diamond wire in case of coated diamond wire breakage
3.13
hazardous area
ground surface around the machine that can be reached by the whipping diamond wire ends in the most
unfavourable conditions (e.g. wire breaking where it leaves the machine frame)
3.14
block
mass of natural stone extracted from a quarry to be processed to a half-finished product
3.15
cutting operations
excavation of a block from a quarry or the squaring process of the blocks to obtain half-finished product
Note 1 to entry: Transportable diamond wire saws are provided to work in different configurations depending
on the morphology of the quarry and the type of cutting to be realized.
3.16
vertical cut
cutting operation where the cutting plane is orthogonal to the rail support surface and the coated
diamond wire has no path variation
Note 1 to entry: Different types of vertical cutting are defined from 3.16.1 to 3.16.4.
3.16.1
mountain vertical cut
typical vertical cut of extraction of a bench of natural stone from the mountain
Note 1 to entry: See Figure 6.
Safeguarding devices are not illustrated
Key
1 mountain 4 main control panel
2 rail 5 coated diamond wire
3 transportable diamond wire saw 6 cutting plane
Figure 6 — Example of mountain vertical cut
3.16.2
mountain side vertical cut
vertical cut where the transportable diamond wire saw is very close to the vertical side of the quarry
Note 1 to entry: See Figure 7.
Safeguarding devices are not illustrated
Key
1 mountain 4 transportable diamond wire saw
2 mountain-side 5 main control panel
3 coated diamond wire 6 cutting plane
Figure 7 — Example of mountain-side vertical cut
3.16.3
block vertical cut
vertical cut used to square a block
Note 1 to entry: See Figure 8.
Safeguarding devices are not illustrated
Key
1 block 4 main control panel
2 transportable diamond wire saw 5 cutting plane
3 coated diamond wire
Figure 8 — Example of block vertical cut
3.16.4
overhead underslung vertical cut
vertical cut where the transportable diamond wire saw is on the bench to cut and cutting area is under
and in front of the machine
Note 1 to entry: See Figure 9.
Safeguarding devices are not illustrated
Key
1 bench 4 main control panel
2 transportable diamond wire saw 5 cutting plane
3 coated diamond wire
Figure 9 — Example of overhead underslung vertical cut
3.17
horizontal cut
cutting operation where the cutting plane is parallel to the rail support surface and the coated diamond
wire has no path variation
Note 1 to entry: According to the position of the morphology of the quarry two types of horizontal cutting are
defined in 3.17.1 and 3.17.2.
3.17.1
horizontal cut with one side open
horizontal cut where one side of the block to be extracted is free of any obstacles
Note 1 to entry: See Figure 10.

Safeguarding devices are not illustrated
Key
1 mountain 4 main control panel
2 transportable diamond wire saw 5 rail support surface
3 coated diamond wire 6 cutting plane
Figure 10 — Example of horizontal cut with one side open
3.17.2
horizontal cut with two sides open
horizontal cut where two sides of the block to be extracted are free by any obstacles
Note 1 to entry: See Figure 11.
Safeguarding devices are not illustrated
Key
1 mountain 4 main control panel
2 transportable diamond wire saw 5 rail support surface
3 coated diamond wire 6 cutting plane
Figure 11 — Example of horizontal cut with one side open
3.18
block inclined cut
vertical or horizontal cutting operation used to square a block where the cutting plane can have a
maximum angle variation of 15°, set before the starting of the cut, compared to the vertical or horizontal
cutting plane defined above
Note 1 to entry: See Figure 12.

Safeguarding devices are not illustrated
Key
1 cutting plane 4 main control panel
2 transportable diamond wire saw 5 rail support surface
3 coated diamond wire 6 cutting plane
Figure 12 — Example of block inclined vertical cut
4 Safety requirements and/or protective/risk reduction measures
4.1 General
Machinery shall comply with the safety requirements and/or protective measures of this clause. In
addition, the machine shall be designed according to the principles of EN ISO 12100:2010 for relevant
but not significant hazards (e.g. sharp edges of the machine frame) which are not dealt with this
document.
For all cutting operations dealt with in this document, coated diamond wire rotation can be clockwise or
counter clockwise.
4.2 Controls
4.2.1 Safety and reliability of control systems
For the purpose of this document, safety-related part of a control system means the system which
implements safety functions from the initial device (e.g. actuator, position detector or sensor) up to
include the power control element of the final machine actuator (e.g. motor). Safety-related parts of the
control system of this machine comprise parts concerning the following functions and they shall fulfil the
requirements of the PL given below, in accordance with the requirements of EN ISO 13849-1:2015:
a) for starting: PL = c (see 4.2.3);
b) for normal stop: PL = c (see 4.2.4);
c) for emergency stop: PL = c (see 4.2.5);
d) for mode selection: PL = c (see 4.2.6);
e) for peripheral speed monitoring of drive wheel: PL = c (see 4.2.6.2);
f) for hold-to-run control or limited speed/increment monitoring: PL = c (see 4.2.6.3);
g) for prevention of automatic restart: PL = c (see 4.2.7);
h) for prevention of uncontrolled movement of machine on its rails: PL = c (see 4.3.2);
i) for wire tension system: PL = c (see 4.3.4);
j) for inclination control system: PL = c (see 4.3.5.1 and 4.3.5.2).
Verification: By checking the relevant drawings and/or circuit diagrams, calculation and inspection of the
machine.
4.2.2 Position of controls
The following control devices:
a) starting;
b) normal stop;
c) emergency stop;
d) mode selector;
e) speed control;
f) cycle setting (see 4.2.6.3 d)
shall be located on the main control panel.
The main control panel may be wireless or connected by cable to the machine and shall be located outside
the hazardous area (see Clause 5).
If the main control panel connected by cable is provided, control devices shall be located at a distance of
at least 600 mm and not exceeding 1 500 mm from the floor level.
If an additional control panel for cycle setting is provided on board of machine or connected by cable to
the machine, control devices shall be placed as follows:
1) cycle setting (see 4.2.6.3 d);
2) emergency stop;
shall be located on the additional control panel at a distance of at least 600 mm and not exceeding
1 500 mm from the floor level.
The other control devices:
i) mode selector;
ii) speed control;
iii) normal stop;
iv) emergency stop;
shall be located on the main control panel.
The main control panel may be wireless or connected by cable to the machine and shall be located outside
the hazardous area (see Clause 5).
If the main control panel connected by cable is provided, control devices shall be located at a distance of
at least 600 mm and not exceeding 1 500 mm from the floor level.
For any arrangement above mentioned, if a wireless control panel is provided EN 60204-1:2018, 9.2.4,
applies.
If the additional control panel is not provided on board of the machine at least an emergency stop control
device shall be provided on board of machine.
Verification: By checking the relevant drawings and/or circuit diagrams, inspection and functional testing
of the machine.
4.2.3 Starting
Start or restart shall only be possible by actuation of the start-control device provided for that purpose.
This start-control device shall be protected against unintended actuation e.g. by shrouded control
devices.
Starting shall conform to the requirements of EN 60204-1:2018, 9.2.3.2, and in addition start or restart
of the machine shall be possible if the following conditions shall be met:
a) all safeguards are in place and functional;
b) the wire-tension system is set (see 4.2.6.3 and 4.3.4);
c) belt tension is set (see 4.3.5.1).
d) inclination control system is set (see 4.3.5.1).
e) acoustic and/or visual warning devices shall be provided to signal starting of machine (see 5.2).
Starting shall be actuated by the operator outside of hazardous area.
The starting sequence shall be:
1) start of the backward movement of the machine on its rail;
2) start of drive wheel to initiate the rotation of the coated diamond wires;
Speed variation of the main drive wheel shall be actuated by a control device provided for that purpose
(see 4.2.2).
The control system for starting or restarting shall be PL = c in accordance with the requirements of
EN ISO 13849-1:2015.
Verification: By checking the relevant drawings and/or circuit diagrams, calculation inspection and
functional testing of the machine.
4.2.4 Normal stop
A normal stop control system shall be provided for the machining and setting modes of operation which
when actuated shall fulfil the stopping sequences and shall disconnect power from all machine actuators.
Transportable diamond wire saws shall be fitted with normal stop control of stop category 0 or 1 in
accordance with EN 60204-1:2018, 9.2.2.
The stopping sequence shall be:
a) stop of the backward movement of the machine on its rail;
b) stop of drive wheel.
The control circuit for normal stop shall be at least PL = c in accordance with the requirements of
EN ISO 13849-1:2015.
Verification: By checking the relevant drawings and/or circuit diagrams, calculation inspection and
functional testing of the machine.
4.2.5 Emergency stop
Machines shall be fitted with an emergency stop control device which complies with the requirements of
EN ISO 13850:2015 and additionally with the requirements of EN 60204-1:2018, 10.7.
Emergency stop shall be of a stop category 0 in accordance with the requirements of EN 60204-1:2018,
9.2.2.
The stopping sequence for emergency stop shall be:
a) stop of the backward movement of the machine on its rail;
b) stop of drive wheel.
The control circuit for emergency stop shall be at least PL = c in accordance with the requirements of
EN ISO 13849-1:2015.
Verification: By checking the relevant drawings and/or circuit diagrams, calculation inspection and
functional testing of the machine.
4.2.6 Mode selection
4.2.6.1 General
When the machine shall operate during setting, the following conditions shall be met:
a) a mode selector shall be provided, to select between machining mode of operation (see 4.2.6.2) and
machine setting mode of operation (4.2.6.3). Mode selector shall be lockable in each position (e.g. by
key, password or equivalent device) and shall be located on the main control panel connected by
cable or wireless;
b) the control system for mode selection between the machine setting mode of operation and machining
mode of operation shall be at least PL = c in accordance with the requirements of
EN ISO 13849-1:2015;
c) the mode selector shall not allow more than one mode to be active at any one time;
d) selecting any of the modes shall not initiate any movement of the machine;
e) it shall not be possible to change between the machine setting mode of operation and machining
mode of operation before the machine has been brought to a complete and safe stop.
Verification: By checking the relevant drawings and/or circuit diagrams, inspection and functional testing
of the machine.
4.2.6.2 Machining mode of operation
In machining mode of operation, any movement shall only be possible when guards and protective
devices (see 4.3.5) are in place and functional.
The peripheral speed of drive wheel shall be no more than 40 m/s.
The control circuit monitoring for peripheral speed of drive wheel shall be at least PL = c in accordance
with the requirements of EN ISO 13849-1:2015.
Verification: By checking the relevant drawings and/or circuit diagrams, calculation and inspection and
functional testing of the machine.
4.2.6.3 Machine setting mode of operation
In machine setting mode of operation, any movement shall only be possible when the following
requirements are met:
a) the drive wheel rotation shall not be possible;
b) any other movement shall be controlled by a hold-to-run control. Any movement shall be limited to
a speed of 5 m/min or 5 rpm speed or a maximum increment of 10 mm for a single step. Both the
hold-to-run control and speed/increment monitoring shall be PL = c in accordance with the
requirements of EN ISO 13849-1:2015. If this is technically not possible, alternatively hold-to-run
control and the speed/increment monitoring shall be provided in conjunction enabling device PL = c
in accordance with the requirements of EN ISO 13849-1:2015;
c) the hold-to-run control devices, enabling devices for rotation and translation of machine head wire
tension control shall be located on the main control panel or additional control panel on board of
machine (see 4.2.2);
--------------
...