EN 848-1:2007+A1:2009

SLOVENSKI STANDARD
01-januar-2010
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Safety of woodworking machines - One side moulding machines with rotating tool - Part
1: Single spindle vertical moulding machines
Sicherheit von Holzbearbeitungsmaschinen - Fräsmaschinen für einseitige Bearbeitung
mit drehendem Werkzeug - Teil 1: Einspindelige senkrechte Tischfräsmaschinen
Sécurité des machines pour le travail du bois - Machines à fraiser sur une face à outil
rotatif - Partie 1: Toupies monobroches à arbre vertical
Ta slovenski standard je istoveten z: EN 848-1:2007+A1:2009
ICS:
79.120.10 Lesnoobdelovalni stroji Woodworking machines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 848-1:2007+A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2009
ICS 79.120.10 Supersedes EN 848-1:2007
English Version
Safety of woodworking machines - One side moulding machines
with rotating tool - Part 1: Single spindle vertical moulding
machines
Sécurité des machines pour le travail du bois - Machines à Sicherheit von Holzbearbeitungsmaschinen -
fraiser sur une face à outil rotatif - Partie 1: Toupies Fräsmaschinen für einseitige Bearbeitung mit drehendem
monobroches à arbre vertical Werkzeug - Teil 1: Einspindelige senkrechte
Tischfräsmaschinen
This European Standard was approved by CEN on 13 January 2007 and includes Amendment 1 approved by CEN on 3 October 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 848-1:2007+A1:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .4
Introduction .5
1 Scope .6
2 Normative references .6
3 Terms and definitions .9
3.1 General .9
3.2 Definitions .9
3.3 Terminology . 14
4 List of significant hazards . 18
5 Safety requirements and/or measures . 21
5.1 General . 21
5.2 Controls . 21
5.2.1 Safety and reliability of control systems . 21
5.2.2 Position of controls . 22
5.2.3 Starting . 23
5.2.4 Normal stopping . 24
5.2.5 Emergency stop . 25
5.2.6 Mode selection . 25
5.2.7 Speed changing . 26
5.2.8 Adjustments control . 27
5.2.9 Failure of the power supply . 28
5.2.10 Failure of the control circuits . 28
5.3 Protection against mechanical hazards . 29
5.3.1 Stability . 29
5.3.2 Hazard of break-up during operation. 29
5.3.3 Tool holder and tool design . 29
5.3.4 Braking . 36
5.3.5 Devices to minimise the possibility or the effect of kickback . 37
5.3.6 Work-piece supports and guides . 40
5.3.7 Prevention of access to moving parts . 46
5.3.8 Workpiece clamping device . 51
5.3.9 Safety appliances. 51
5.4 Protection against non-mechanical hazards . 52
5.4.1 Fire . 52
5.4.2 Noise . 52
5.4.3 Emission of chips and dust . 53
5.4.4 Electricity . 54
5.4.5 Ergonomics and handling . 55
5.4.6 Pneumatics . 55
5.4.7 Hydraulics . 55
5.4.8 Electromagnetic compatibility . 55
5.4.9 Errors of fitting . 56
5.4.10 Supply disconnecting devices . 56
5.4.11 Maintenance . 56
6 Information for use . 57
6.1 Warning devices . 57
6.2 Marking . 57
6.3 Instruction handbook . 59
Annex A (normative) Determination of maximum tool spindle speeds . 63
Annex B (normative) Rigidity test for pressure pads, hand protectors and guiding steadies . 68
B.1 Pressure pads . 68
B.1.1 Fence pressure pads . 68
B.1.2 Table pressure pads . 69
B.1.3 Measuring equipment . 71
B.1.4 Test and test requirements. 71
B.1.5 Measuring conditions . 71
B.2 Adjustable guard (Hand protector) and guiding steady . 71
B.2.1 Adjustable guard . 71
B.2.2 Guiding steady . 72
B.2.3 Measuring equipment . 73
B.2.4 Test . 73
B.2.5 Measuring conditions . 74
Annex C (normative) Stability test for displaceable machines . 75
Annex D (informative) Use of well tried components . 76
Annex E (normative) Brake tests . 77
E.1 Conditions for all tests . 77
E.2 Tests . 77
E.2.1 Un-braked run-down time . 77
E.2.2 Run-up time . 77
E.2.3 Braked run-down time . 77
Annex F (normative) Use of electronic components . 79
F.1 General . 79
F.2 SRECS . 79
F.2.1 Components, hardware . 79
F.2.2 Safety related software . 80
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of UE Directive 98/37/EC . 82
Annex ZB (informative) !Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC" . 85
Bibliography . 89

Foreword
This document (EN 848-1:2007+A1:2009) has been prepared by Technical Committee CEN/TC 142
“Woodworking machines - Safety”, the secretariat of which is held by UNI.
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 2010, and conflicting national standards shall be withdrawn at the
latest by May 2010.
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 includes Amendment 1, approved by CEN on 2009-10-03 and Corrigendum 1, issued by CEN
on 2008-11-26.
This document supersedes !EN 848-1:2007".
The start and finish of text introduced or altered by amendment is indicated in the text by tags!"͘
The modifications of the related CEN Corrigendum have been implemented at the appropriate places in the
Ϳ
ϭ
text and are indicated by the 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 the !Machinery Directives".
!For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this
document."
Organisation contributing to the preparation of this document include the European Association of
Manufacturer of Woodworking Machines "EUMABOIS".
The European Standards produced by CEN/TC 142 are particular to woodworking machines and compliment
the relevant A and B standards on the subject of general safety (see introduction of EN ISO 12100-1:2003 for
a description of A, B and C standards).
!EN 848 Safety of woodworking machines — One side moulding machines with rotating tool consists of the
following parts:
Part 1: Single spindle vertical moulding machines
Part 2: Single spindle hand fed/integrated fed routing machines
Part 3: Numerically controlled (NC) boring and routing machines"
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.

)
Applicable to the French version.
Introduction
This document has been prepared to be a harmonised standard to provide one means of conforming to the
essential safety requirements of the Machinery Directive, and associated EFTA Regulations.
This document is a type C standard as stated in EN 12100-1:2003.
The machinery concerned and the extent to which hazards, hazardous situations and events are covered are
indicated in the scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B standards, the
provisions of this type C standard take precedence over the provisions of other standards, for machines that
have been designed and built in accordance with the requirements of the provisions of this type C standard.
The requirements of this document are directed to manufacturers and their authorised representatives of
single spindle vertical moulding machines. It is also useful for designers.
This document also includes provisions and examples of information to be provided by the manufacturer to
the user.
Common requirements for tooling are given in EN 847-1:2005, EN 847-2:2001 and EN 847-3:2004.
1 Scope
This document !specifies all significant" hazards, hazardous situations and events as listed in Clause 4
which are relevant to stationary and displaceable hand fed single spindle vertical moulding machines (with or
without demountable power feed unit), herein after referred to as "machines", designed to cut solid wood, chip
board, fibreboard, plywood and also these materials if they are covered with plastic laminate or edgings when
they are used as intended and under the conditions foreseen by the manufacturer.
NOTE 1 For the definition of stationary and displaceable machine see 3.2.17 and 3.2.18.
This document does not apply to:
a) machines equipped with outboard bearings;
b) machines equipped with powered movements of front extension table and/or tenoning travelling table;
c) hand held woodworking machines or any adaptation permitting their use in a different mode, i.e. bench
mounting;
NOTE 2 Hand-held motor-operated electric tools are dealt with in EN 60745-1:2003 together with EN 60745-2-17:2003.
d) machines set up on a bench or a table similar to a bench, which are intended to carry out work in a
stationary position, capable of being lifted by one person by hand. The bench can also be an integrated
part of the machine if it consists of hinged legs which can be extended down;
NOTE 3 Transportable motor-operated electric tools are dealt with in EN 61029-1:2000 together with
!EN 61029-2-8:2003".
This document is not applicable to hand fed single spindle vertical moulding machines which are
manufactured before the date of its publication as EN.
NOTE 4 Machines covered by this document are listed under A.7 of Annex IV of the Machinery Directive.
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 847-1:2005, Tools for woodworking — Safety requirements — Part 1: Milling tools, circular saw blades
EN 847-2:2001, Tools for woodworking — Safety requirements — Part 2: Requirements for the shank of
shank mounted milling tools
EN 894-1:1997, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 1: General principles for human interactions with displays and control actuators
EN 894-2:1997, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 2: Displays
EN 894-3:2000, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 3: Control actuators
EN 982:1996, Safety of machinery — Safety requirements for fluid power systems and components —
Hydraulics
EN 983:1996, Safety of machinery — Safety requirements for fluid power systems and components —
Pneumatics
EN 1005-1:2001, Safety of machinery — Human physical performance — Part 1: Terms and definitions
EN 1005-2:2003, Safety of machinery — Human physical performance — Part 2: Manual handling of
machinery and component parts of machinery
EN 1005-3:2002, Safety of machinery — Human physical performance — Part 3: Recommended force limits
for machinery operation
EN 1005-4:2005, Safety of machinery — Human physical performance — Part 4: Evaluation of working
postures and movements in relation to machinery
EN 1037:1995, Safety of machinery — Prevention of unexpected start-up
EN 1088:1995, Safety of machinery — Interlocking devices associated with guards — Principles for design
and selection
EN 1837:1999, Safety of machinery — Integral lighting of machines
EN 50178:1997, Electronic equipment for use in power installations
EN 50370-1:2005, Electromagnetic compatibility (EMC) — Product family standard for machine tools — Part
1: Emission
EN 50370-2:2003, Electromagnetic compatibility (EMC) — Product family standard for machine tools — Part
2: Immunity
EN 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General requirements
(IEC 60204-1:2005, modified)
EN 60439-1:1999, Low-voltage switchgear and controlgear assemblies — Part 1: Type-tested and partially
type-tested assemblies (IEC 60439-1:1999)
EN 60529:1991, Degree of protection provided by enclosure (IP code) (IEC 60529:1989)
!EN 61310-1:2008, Safety of machinery — Indication, marking and actuation — Part 1: Requirements for
visual, auditory and tactile signals (IEC 61310-1:2007)"
EN 61496-1:2004, Safety of machinery — Electro sensitive protective equipment — Part 1: General
requirements and tests (IEC 61496-1:2004, modified)
EN 61508-3:2001, Functional safety of electrical/electronic/programmable electronic safety related systems —
Part 3: Software requirements (IEC 61508-3:1998 + Corrigendum 1999)
EN 62061:2005, Safety of machinery — Functional safety of safety-related electrical, electronic and
programmable control systems (IEC 62061:2005)
EN ISO 3743-1:1995, Acoustics — Determination of sound power levels of noise sources — Engineering
methods for small movable sources in reverberant fields — Part 1: Comparison method for hard-walled test
rooms (ISO 3743-1:1994)
EN ISO 3743-2:1996, Acoustics — Determination of sound power levels of noise sources using sound
pressure — Engineering methods for small, movable sources in reverberant fields — Part 1: Methods for
special reverberation test rooms (ISO 3743-2:1994)
EN ISO 3744:1995, Acoustics — Determination of sound power levels of noise sources using sound pressure
— Engineering method in an essentially free field over a reflecting plane (ISO 3744:1994)
EN ISO 3745:2003, Acoustics — Determination of sound power levels of noise sources using sound pressure
— Precision methods for anechoic and semi-anechoic rooms (ISO 3745:2003)
EN ISO 3746:1995, Acoustics — Determination of sound power levels of noise sources using sound pressure
— Survey method using an enveloping measurement surface over a reflecting plane (ISO 3746:1995)
EN ISO 4871:1996, Acoustics — Declaration and verification of noise emission values of machinery and
equipment (ISO 4871:1996)
EN ISO 9614-1:1995, Acoustics — Determination of sound power levels of noise sources using sound
intensity — Part 1: Measurement at discreet points (ISO 9614-1:1993)
EN ISO 11202:1995, Acoustics — Noise emitted by machinery and equipment — Measurement method of
emission sound pressure levels at a work station and at other specified positions — Survey method in situ
(ISO 11202:1995)
EN ISO 11202:1995/AC:1997, Acoustics — Noise emitted by machinery and equipment — Measurement
method of emission sound pressure levels at a work station and at other specified positions — Survey method
in situ (ISO 11202:1995/Cor.1:1997)
EN ISO 11204:1995, Acoustics — Noise emitted by machinery and equipment — Measurement of emission
sound pressure levels at a work station and at other specified positions — Method requiring environmental
corrections (ISO 11204:1995)
EN ISO 11204:1995/AC:1997, Acoustics — Noise emitted by machinery and equipment — Measurement of
emission sound pressure levels at a work station and at other specified positions — Method requiring
environmental corrections (ISO 11204:1995/Cor.1:1997)
EN ISO 11688-1:1998, Acoustics — Recommended practice for the design of low-noise machinery and
equipment — Part 1: Planning (ISO/TR 11688-1:1995)
EN ISO 11688-1:1998/AC:1998, Acoustics — Recommended practice for the design of low-noise machinery
and equipment — Part 1: Planning (ISO/TR 11688-1:1995)
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 13849-1:2008", Safety of machinery — Safety-related parts of control systems — Part 1:
General principles for design (ISO 13849-1:2006)
!EN ISO 13849-2:2008", Safety of machinery — Safety-related parts of control systems — Part 2:
Validation (ISO 13849-2:2003)
EN ISO 13850:2006, Safety of machinery — Emergency stop — Principles for design (ISO 13850:2006)
!EN ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by
upper and lower limbs (ISO 13857:2008)"
ISO 7009:1983, Woodworking machines — Single spindle moulding machines — Nomenclature and
acceptance conditions
ISO 7960:1995, Airborne noise emitted by machine tools — Operating conditions for woodworking machines
3 Terms and definitions
3.1 General
For the purposes of this document, the terms and definitions given in EN ISO 12100-1:2003 and the following
apply.
3.2 Definitions
3.2.1
single spindle vertical moulding machine
hand fed machine fitted with a single vertical spindle (fixed or removable) the position of which is fixed during
machining and a horizontal table, all or part of which are fixed during operation. The spindle passes through
the table and its drive motor is situated beneath the table. The machine may have any of the following
features:
a) the facility for the spindle to be vertically adjustable relative to the table;
b) the facility to tilt the spindle;
c) the facility for fitting an additional manually operated tenoning travelling table;
d) the facility for the glass bead recovery;
e) the facility for an adjustable table insert
3.2.2
straight work
shaping of a work-piece with one face in contact with the table and a second with the fence, and where the
work starts at one end of the work-piece and continues through to the other end (see Figure 1)

Figure 1 — Example of straight work
3.2.3
curved work
machining of a curve on a work-piece by having one side in contact with the table (or if held in a jig with the jig
in contact with the table) and the other in contact with the vertical reference of a steady (see Figure 2) or ball
ring guide when using a jig
Figure 2 — Example of curved work
3.2.4
tenoning
machining of projections and slots on the end of a work-piece to facilitate the joining of work-pieces. This
includes profiled tenons (see Figure 3)

Key
1 tenon
2 slot
Figure 3 — Example of workpiece with tenon/slot
3.2.5
stopped straight work
machining of only a part of the work-piece length (see Figure 4)

Key
1 end stop to prevent kickback
Figure 4 — Example of stopped straight work
3.2.6
glass bead saw unit
work unit fitted with a saw-blade to cut out a glass bead from the machined profile of the work-piece (e.g. see
Figure 5)
Key
1 glass bead saw-blade
2 bead ledge separator
3 anti-kickback finger
4 pressure device
5 guiding channel for glass bead ledge
6 glass bead ledge
7 workpiece
8 fixed safeguard for glass bead saw blade
9 automatic guard for glass bead saw blade
10 fence
11 feed direction
Figure 5 — Example of glass bead recovery unit

3.2.7
hand feed
manual holding and/or guiding of the work-piece. Hand feed may include the use of a hand operated carriage
on which the work-piece is placed manually or clamped and the use of a de-mountable power feed unit
3.2.8
de-mountable power feed unit
power feed mechanism which is mounted on the machine so that it can be moved from its working position to
a rest position and vice versa without the use of a spanner or similar additional device
3.2.9
speed range
range between the lowest and the highest rotational speed for which the tool spindle or tool is designed to
operate
3.2.10
kickback
particular form of ejection describing the uncontrolled movement of the work-piece, parts of it or parts of the
machine opposite to the direction of feed during processing
3.2.11
anti-kickback device
device which either reduces the possibility of kickback or arrests the motion during kickback of the work-piece,
parts of it or parts of the machine
3.2.12
removable spindle
tool spindle capable of being changed without removing the main spindle bearings
3.2.13
machine actuator
power mechanism used to effect motion of the machine
3.2.14
information of the supplier
statements, sales literature, leaflets or other documents in which a manufacturer (or supplier) declares either
the characteristics of e.g. a material or product or the conformity of the material or product to a relevant
standard
3.2.15
run-up time
elapsed time from the actuation of the start control device until the spindle reaches the selected speed
3.2.16
run-down time
elapsed time from the actuation of the stop control device to spindle stand still
3.2.17
stationary machine
machine designed to be located on or fixed to the floor or other parts of the structure of the premises and to
be stationary during use
3.2.18
displaceable machine
machine which is located on the floor, stationary during use and equipped with a device, normally wheels,
which allows it to be moved between locations
3.2.19
safety related electrical control system (SRECS)
electrical that is part of the system supplied by the manufacturer whose failure can result in an immediate
increase of the risk(s) (3.2.4 of EN 62061:2005)
3.2.20
embedded software
software that is part of the system supplied by the manufacturer that is not normally accessible for
modification
NOTE 1 Firmware or system software are examples of embedded software (see 3.2.47 of EN 62061:2005).
NOTE 2 Manufacturer means manufacturer of the system.
NOTE 3 For example the operating system of a speed monitoring device.
3.2.21
application software
software specific to the application that is specifically implemented by the designer of the SRECS, generally
containing logic sequences, limits and expressions that control the appropriate inputs, outputs, calculations
and decisions necessary to meet the SRECS functional requirements (see 3.2.46 of EN 62061:2005)
NOTE For example the PLC program to run a machine.
3.3 Terminology
The main parts of the machine and their terminology are shown in Table 1 and Figures 6 a), 6 b), 6 c) and 6 d).

Figure 6 a) — Example of a single spindle vertical moulding machine equipped for straight work
Figure 6 b) — Example of a single spindle vertical moulding machine equipped for curved work

Figure 6 c) — Example of tool safeguarding for a single spindle vertical moulding machine equipped
for tenoning with transparent adjustable guards
Figure 6 d) — Example of tool safeguarding for a single spindle vertical moulding machine equipped
for tenoning with transparent self adjusting guard
Figure 6 — Single spindle vertical moulding machine terminology

Table 1 — Main components of single spindle vertical moulding machines
Reference number Terminology
1 Main frame
2 Speed indicator
3 Spindle lock
4 Start and stop controls
5 Tool
6 Table rings
7 Straight work guard
8 Fence plates
9 Enclosure
10 Chip and dust extraction outlet
11 Curved work guard
12 Bonnet guard
13 Guiding steady
14 Travelling table
15 Work-piece clamping device
16 Adjustable guard
17 De-mountable power feed unit
18 Push stick
19 Guards fixed to the travelling table
20 Table extension
21 Adjustable end stop
4 List of significant hazards
This clause contains !all significant" hazards, hazardous situations and events (see EN 1050:1996), as
far as they are dealt with in this document, identified by risk assessment as significant for the machines as
defined in the scope and which require action to eliminate or reduce the risk. This document deals with these
significant hazards by defining safety requirements and/or measures or by reference to relevant standards:
These hazards are listed in Table 2 in accordance with Annex A of EN 1050:1996.
Table 2 — List of significant hazards
Hazards, hazardous situations and Relevant
No hazardous events EN ISO 12100 clauses of
this
document
Part1:2003 Part 2:2003
Mechanical hazards related to
- machine parts or workpiece due to:
a) shape  5.3.3, 5.3.5,
5.3.6, 5.3.7,
5.3.8
4.2 4.2.1, 4.2.2,
b) relative location 5.2.2, 5.3.5,
5.3.6
c) mass and stability (potential energy 5.3.1, 5.3.7
of elements which may move under the
effect of gravity)
d) mass and velocity (kinetic energy of 5.2.8, 5.3.5,
elements in controlled or uncontrolled 5.3.8
motion)
e) mechanical strength 5.3.3, 5.3.5,
5.3.6, 5.3.7
- accumulation of energy inside the machine by:
f) elastic elements (springs), or 4.2 4.10, 5.5.4 5.3.7
g) liquids or gases under pressure 5.2.9, 5.4.6,
5.4.7
(to be continued)
Table 2 — List of significant hazards (continued)
Hazards, hazardous situations and Relevant
No hazardous events EN ISO 12100 clauses of
this
Part1:2003 Part 2:2003
document
1.1 Crushing hazard 4.2.1 5.3.4, 6.3
1.3 Cutting or severing hazard 5.3.3, 5.3.6,
5.3.7.1
1.4 Entanglement hazard 5.3.3, 5.3.7
1.5 Drawing in or trapping hazard 5.3.7
1.6 Impact hazard 5.3.5
2. Electrical hazards
2.1 Contact of persons with live parts 4.3 4.9, 5.5.4 5.4.4
(direct contact)
2.2 Contact of persons with parts which 4.3 4.9 5.4.4
have become live under faulty
conditions ( indirect contact)
4. Hazards generated by noise, resulting in:
4.1 Hearing loss (deafness), other 4.5 4.2.2, 5 5.4.2
physiological disorders (loss of balance,
loss or awareness)
7. Hazards generated by materials and substances ( and their constituent)processed, or
used by the machinery:
7.1 Hazards from contact with or inhalation 4.8 4.3b, 4.4 5.4.3
of harmful fluids and dusts
7.2 2 Fire hazard 4.8 4.4 5.4.1
8. Hazards generated by neglecting ergonomic principles in machine design as:
8.1 Unhealthy postures or excessive efforts 4.9 4.7, 4.8.2, 5.2.2, 5.3.7
4.11.12,
5.5.5, 5.5.6
8.2 Hand/arm or foot/leg anatomy 4.9 4.8.3 5.3.6, 5.3.7
(to be continued)
Table 2 — List of significant hazards (concluded)
Hazards, hazardous situations and Relevant
No hazardous events EN ISO 12100 clauses of
this
Part1:2003 Part 2:2003
document
8.6 Human error, human behaviour 4.9 4.8, 4.11.8, 5.2.6,
4.11.10, 5.3.3.6,
5.5.2, 6 5.3.4, 6.3
8.7 Design, location or identification of 4.8.7, 4.11.8 5.2.2
manual controls
9 Hazard combination 4.11 5.2.6
10. Unexpected start-up, unexpected overrun/overspeed (or any similar malfunction) from
10.1 Failure/ disorder of the control system 4.11, 5.5.4 5.2.6, 5.2.9
10.2 Uncontrolled restoration of energy 4.11.4 5.2.8
supply after an interruption
10.3 External influences on electrical 4.11.11 5.4.8,
equipment Annex F
10.5 Errors in the software 4.11.7 Annex F
10.6 Errors made by the operator (due to 4.9 4.8, 4.11.8, 5.4.5, 5.4.10,
mismatch of machinery with human 4.11.10, 6.3
characteristics and abilities, see 8.6) 5.5.2, 6
11 Impossibility of stopping the machine in 4.11.1, 5.2.4, 5.2.5
4.11.3, 5.5.2
the best possible conditions
12 Variation in the rotational speed of tools 4.2.2, 4.3 5.2.7
13 Failure of the power supply 4.11.1, 5.2.8
4.11.4
14 Failure of the control circuit 4.11, 5.5.4 5.2.9, 5.2.10
15 Errors of fitting 4.9 4.7, 6.5 6.3
16 Break-up during operation 4.2.2 4.3 5.3.2
17 Falling or ejected objects or fluids 4.2.2 4.3, 4.10 5.3.2, 5.3.3,
5.3.5,
18 Loss of stability/overturning of 4.2.2 5.2.6 5.3.1
machinery
5 Safety requirements and/or measures
5.1 General
The machine shall comply with the safety requirements and/or protective measures of Clause 5.
NOTE 1 In addition, the machine should be designed in accordance with the requirements of the principles of
EN ISO 12100:2003 (parts 1 and 2) for hazards relevant but not significant, which are not dealt with by this document (e.g.
sharp edges of the machine frame).
NOTE 2 For guidance in connection with risk reduction by design, see Clause 4 of EN ISO 12100-2:2003, and for
safeguarding measures, see Clause 5 of EN ISO 12100-2:2003.
5.2 Controls
5.2.1 Safety and reliability of control systems
5.2.1.1 General
For the purpose of this document, safety related part of a control system means the system from the initial
device, e.g. actuator or position detector or sensor up to and including the power control element of the final
machine actuator, e.g. motor or brake. Safety related parts of the control system of this machine comprise
parts concerning the following functions and they shall fulfil the requirements of the categories given below in
accordance with the requirements of !EN ISO 13849-1:2008":
 for starting the rotation of the tool spindle: category 1 (see 5.2.3);
 for normal stopping: category 1 (see 5.2.4);
 for emergency stopping: category 1 (see 5.2.5);
 for tool spindle, fence, adjustable table insert adjustments movements if power driven: category B (see
5.2.8.1, 5.2.8.2);
 for monitoring of tool spindle speed :category 1 or 2 (see 5.2.7);
 for enabling power driven adjustments: category 1 (see 5.2.8.1, 5.2.8.2);
 for interlocking: category 1 or 3 (see 5.2.7 and 5.3.7.2);
 for interlocking with guard locking: category 1 or 3 (see 5.3.7.1.1 and 5.3.7.2);
 for mode selection: category 1 (see 5.2.6);
 for braking: category B, 1 or 2 (see 5.3.4.1);
 for brake release: category B (see 5.3.4.2);
 for workpiece clamping: category 1 (see 5.3.8).
Where more than one category is given, further information about the necessary type is specified in the
quoted clauses.
Where category B is required all categories fulfil the requirements, where category 1 is required categories 3
and 4 also fulfil the requirement. Where category 2 is required categories 3 and 4 also fulfil the requirement,
where category 3 is required category 4 also fulfils the requirement.
NOTE 6.3 of !EN ISO 13849-1:2008" give useful information on combination of safety-related parts to the same
or different categories.
Verification: By checking the relevant drawings and/or circuit diagrams and inspection of the machine.
5.2.1.2 Use of well-tried components and protective devices
5.2.1.2.1 Well-tried components
Components are considered well tried if they comply with 6.2.4 of
!EN ISO 13849-1:2008" (see Annex D).
NOTE 1 Well-tried electrical components are listed in Table D.3 of !EN ISO 13849-2:2008".
NOTE 2 !EN 13849-2:2008" gives useful information on assessment of well-tried components, possible exclusion
of faults etc.
Verification: By checking the relevant drawings and/or circuit diagrams and inspection of the machine.
5.2.1.2.2 Protective devices
Protective devices shall be in accordance with the specific standards. For the devices listed below the
following requirements apply:
a) magnetic/proximity switches shall be in accordance with the requirements of 6.2 of EN 1088:1995 and the
related control system shall conform to category 3 in accordance with the requirements of
!EN ISO 13849-1:2008";
b) a component failure shall not cause an unexpected movement (starting), a change of running conditions
during operation (adjustment of the speed or of a powered movement) and a failure of a commanded
stopping. Well known solutions such as monitoring, redundancy shall be used to achieve category 3 in
accordance with the requirements of !EN ISO 13849-1:2008".
c) !if a time delay is used it shall be of fail safe technique e.g. of capacity type conforming to the
requirements of category 3 in accordance with the requirements of EN ISO 13849-1:2008."
Verification: By checking the relevant drawings and/or circuit diagrams, inspe
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