EN 861:2007+A2:2012

SLOVENSKI STANDARD
01-september-2012
1DGRPHãþD
SIST EN 861:2008+A1:2009
9DUQRVWOHVQRREGHORYDOQLKVWURMHY.RPELQLUDQLLQGHEHOLQVNLVNREHOMQLVWURML
YNOMXþQR]GRSROQLOLGR$
Safety of woodworking machines - Surface planing and thicknessing machines
Sicherheit von Holzbearbeitungsmaschinen - Kombinierte Abricht- und
Dickenhobelmaschinen
Sécurité des machines pour le travail du bois - Machines combinées à raboter et à
dégauchir
Ta slovenski standard je istoveten z: EN 861:2007+A2:2012
ICS:
25.080.25 6WURML]DSORãþLQVNRREGHODYR Planing machines
79.120.10 Lesnoobdelovalni stroji Woodworking machines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 861:2007+A2
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2012
ICS 79.120.10 Supersedes EN 861:2007+A1:2009
English Version
Safety of woodworking machines - Surface planing and
thicknessing machines
Sécurité des machines pour le travail du bois - Machines Sicherheit von Holzbearbeitungsmaschinen - Kombinierte
combinées à raboter et à dégauchir Abricht- und Dickenhobelmaschinen
This European Standard was approved by CEN on 10 May 2007 and includes Amendment 1 approved by CEN on 16 July 2009 and
Amendment 2 approved by CEN on 20 May 2012.

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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 861:2007+A2:2012: E
worldwide for CEN national Members.

Contents Page
Foreword .4
Introduction .5
1 Scope .6
2 Normative references .6
3 Terms and definitions .8
3.1 General .8
3.2 Definitions .8
3.3 Terms . 11
4 List of significant hazards . 13
5 Safety requirements and/or measures . 17
5.1 General . 17
5.2 Controls . 17
5.2.1 Safety and reliability of control systems . 17
5.2.2 Position of controls . 18
5.2.3 Starting . 18
5.2.4 Normal stopping . 19
5.2.5 Emergency stop . 19
5.2.6 Failure of the power supply . 20
5.2.7 Failure of the control circuit . 20
5.3 Protection against mechanical hazards . 21
5.3.1 Stability . 21
5.3.2 Hazard of break up during operation . 21
5.3.3 Tool holder and tool design . 21
5.3.4 Braking . 21
5.3.5 Devices to minimise the possibility or the effect of ejection . 23
5.3.6 Work-piece supports and guides . 24
5.3.7 Prevention of access to moving parts . 28
5.3.8 Guarding of drives . 32
5.3.9 Characteristics of ####cutterblock$$$$ guards . 32
5.3.10 Safety appliances. 33
5.3.11 Demountable power feed ####unit$$$$ . 33
5.4 Protection against non-mechanical hazards . 33
5.4.1 Fire . 33
5.4.2 Noise . 33
5.4.3 Emission of chips and dust . 34
5.4.4 Electricity . 36
5.4.5 Ergonomics and handling . 36
5.4.6 Pneumatics . 37
5.4.7 Hydraulics . 37
5.4.8 Electromagnetic compatibility . 37
5.4.9 Supply disconnection (isolation) . 37
5.4.10 Static electricity . 38
5.4.11 Maintenance . 38
6 Information for use . 38
6.1 General . 38
6.2 Marking . 39
6.3 Instruction handbook . 39
Annex A (normative) Tests for bridge type guards for planing machines . 43
A.1 Compression test . 43
A.2 Shock test. 43
A.3 Strength test for bridge type guard . 43
Annex B (normative) Table lip resistance test . 45
B.1 General . 45
B.2 Work-piece . 45
B.3 Measurements . 47
B.4 Test . 48
B.5 Result . 48
Annex C (normative) Kickback test . 50
Annex D (normative) Stability test for displaceable machines . 51
D.1 Stability test in the surfacing mode . 51
D.2 Stability test in the thicknessing mode . 51
Annex E (normative) Impact test method for guards . 53
E.1 General . 53
E.2 Test method . 53
E.2.1 Preliminary remarks . 53
E.2.2 Testing equipment . 53
E.2.3 Projectile for guards . 53
E.2.4 Sampling. 53
E.2.5 Test procedure . 53
E.3 Results . 54
E.4 Assessment . 54
E.5 Test report . 54
E.6 Test equipment for impact test . 54
Annex F (normative) Braking tests . 58
F.1 Conditions for all tests . 58
F.2 ####Un-braked$$$$ run-down time . 58
F.3 Braked run-down time . 58
Annex ZA (informative) !Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC"""" . 60
Bibliography . 64

Foreword
This document (EN 861:2007+A2:2012) 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 December 2012, and conflicting national standards shall be withdrawn
at the latest by December 2012.
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 2009-07-16, Corrigendum 1, issued by CEN on
2008-10-29 and Amendment 2, issued by CEN on 2012-05-20.
This document supersedes #EN 861:2007+A1:2009$.
The start and finish of text introduced or altered by amendment is indicated in the text by tags ! " and
#$.
The modifications of the related CEN Corrigendum have been implemented at the appropriate places in the
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 Directive.
#For relationship with EU Directive(s), see informative Annexes ZA, which is an integral part of this
document.$
Organisation contributing to the preparation of the European Standard include the European Association of
Manufacturer of Woodworking Machines "EUMABOIS".
The European Standards produced by CEN/TC 142 are particular to woodworking machines and complement
the relevant A and B standards on the subject of general safety (see introduction of
#EN ISO 12100:2010$ for a description of A, B and C standards).
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland, Turkey and the United Kingdom.

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 ISO 12100:2010$.
The machinery concerned and the extent to which hazards, hazardous situations and events are covered are
indicated in the scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B standards, the
provisions of this type C standard take precedence over the provisions of other standards, for machines that
have been designed and built according to the provisions of this type C standard.
The requirements of this document are directed to manufacturers and their authorised representatives of
surface planing and thicknessing machines. They are also useful for designers and importers.
This document also includes provision and examples of information to be provided by the manufacturer to the
user.
Common requirements for tooling are given in #EN 847-1:2005+A1:2007$.
1 Scope
This document !specifies all significant" hazards, hazardous situation and events as listed in Clause 4
relevant to stationary and displaceable surface planing and thicknessing machines with an integrated feed in
thicknessing mode, (with or without demountable power feed unit in planning mode) and with manual loading
and unloading of the work-piece, hereinafter referred to as "machines". The cutterblock is fixed in position and
for thicknessing an integrated feed is provided. The machines are designed to cut solid wood, chipboard,
fibreboard and plywood when they are used as intended and under the conditions foreseen by the
manufacturer #including reasonably foreseeable misuse$.
#Machines which are designed to work wood based materials may also be used for thicknessing hardened
plastic materials with similar physical characteristics as wood.$
This document does not deal with any hazards which result from the attachment of an optional mortising unit.
These hazards are covered by #EN 940:2009+A1:2012$.
This document does not apply to:
a) machines set up on a bench or a table similar to a bench, which are intended to carry out work in a
stationary position, capable of being lifted by one person by hand;
NOTE 1 Transportable motor-operated electric tools are covered by the requirements of
#EN 61029-1:2009$ together with #EN 61029-2-3:2011$.
b) surface planing and thicknessing machines where the cutterblock is adjustable for depth of cut setting in
thicknessing mode;
c) machines where the conversion from planing to thicknessing mode or vice versa is achieved by mounting
or demounting parts/units;
d) machines where surfacing and thicknessing can be performed at the same time.
This document is not applicable to surface planing and thicknessing machines which are manufactured before
the date of its publication as EN.
NOTE 2 Machines covered by this document are listed under A.5 of Annex IV of the Machinery Directive.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
!deleted text"
#EN 847-1:2005+A1:2007$, Tools for woodworking — Safety requirements — Part 1: Milling tools,
circular saw blades
#deleted text$
#EN 1005-2:2003+A1:2008$, Safety of machinery — Human physical performance — Part 2: Manual
handling of machinery and component parts of machinery
#EN 1005-4:2005+A1:2008$, Safety of machinery — Human physical performance — Part 4: Evaluation
of working postures and movements in relation to machinery
#EN 1037:1995+A1:2008$, Safety of machinery — Prevention of unexpected start-up
#EN 1088:1995+A2:2008$, Safety of machinery — Interlocking devices associated with guards —
Principles for design and selection
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)
1)
EN 60439-1:1999 , Low-voltage switchgear and controlgear assemblies — Part 1: Type-tested and partially
type-tested assemblies (IEC 60439-1:1999)
2)
EN 60529:1991 , Degree of protection provided by enclosures (IP code) (IEC 60529:1989)
EN 61496-1:2004, Safety of machinery — Electro-sensitive protective equipment — Part 1: General
requirements and tests (IEC 61496-1:2004, modified)
#deleted text$
#EN 61800-5-2:2007, Adjustable speed electrical power drive systems — Part 5-2: Safety requirements —
Functional (IEC 61800-5-2:2007)$
#EN ISO 3743-1:2010$, #Acoustics — Determination of sound power levels and sound energy levels of
noise sources using sound pressure — Engineering methods for small movable sources in reverberant fields
— Part 1: Comparison method for a hard-walled test room (ISO 3743-1:2010)$
#EN ISO 3743-2:2009$, Acoustics — Determination of sound power levels of noise sources using sound
pressure — Engineering methods for small, movable sources in reverberant fields — Part 2: Methods for
special reverberant test rooms (ISO 3743-2:1994)
#EN ISO 3744:2010$, #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 (ISO 3744:2010)$
#EN ISO 3745:2009$, Acoustics — Determination of sound power levels of noise sources using sound
pressure — Precision methods for anechoic and semi-anechoic rooms (ISO 3745:2003)
#EN ISO 3746:2010$, #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 (ISO 3746:2010)$
#EN ISO 4413:2010, Hydraulic fluid power — General rules and safety requirements for systems and their
components (ISO 4413:2010)
EN ISO 4414:2010, Pneumatic fluid power — General rules and safety requirements for systems and their
components (ISO 4414:2010)$
1)
#EN 60439-1:1999 is impacted by EN 60439-1:1999/A1:2004.$
2)
#EN 60529:1991 is impacted by EN 60529:1991/A1:2000.$
#EN ISO 4871:2009$, Acoustics — Declaration and verification of noise emission values of machinery
and equipment (ISO 4871:1996)
#EN ISO 9614-1:2009$, Acoustics — Determination of sound power levels of noise sources using sound
intensity — Part 1: Measurement at discrete points (ISO 9614-1:1993)
#EN ISO 11202:2010$, #Acoustics — Noise emitted by machinery and equipment — Determination of
emission sound pressure levels at a work station and at other specified positions applying approximate
environmental corrections (ISO 11202:2010)$
#EN ISO 11204:2010$, #Acoustics — Noise emitted by machinery and equipment — Determination of
emission sound pressure levels at a work station and at other specified positions applying accurate
environmental corrections (ISO 11204:2010)$
#EN ISO 11688-1:2009$, Acoustics — Recommended practice for the design of low-noise machinery and
equipment — Part 1: Planning (ISO/TR 11688-1:1995)
#EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk
reduction (ISO 12100:2010)$
3)
!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 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by
upper and lower limbs (ISO 13857:2008)"
ISO 7568:1986, Woodworking machines — Thickness planing machines with rotary cutterblock for one-side
dressing — Nomenclature and acceptance conditions
ISO 7960:1995, Airborne noise emitted by machine tools — Operating conditions for woodworking machines
HD 22.4 S4:2004; Cables of rated voltages up to and including 450/750 V and having crosslinked insulation —
Part 4: Cords and flexible cables
3 Terms and definitions
3.1 General
For the purposes of this document, the terms and definitions given in #EN ISO 12100:2010$ and the
following apply:
3.2 Definitions
3.2.1
surface planing and thicknessing machine
combined machine designed to plane a surface of a work-piece and to give it in a following operation a set
thickness by means of a horizontally rotating cutterblock, a cylindrical shaped complex tool equipped with
blades with horizontal straight cutting line that cuts while rotating (see for a description of the complex tool
also #EN 847-1:2005+A1:2007$)
3)
#EN ISO 13849-1:2008 replaces EN 954-1:1997.$
NOTE The work-piece is fed into the machine against the direction of the cut.
When surfacing, the work-piece is passed over the cutterblock located between two tables which are used to position and
support the work-piece and the lower surface is planed. The infeed table of the surface planing unit is adjustable in height.
#When thicknessing, both of the surfacing tables can be raised.$ The work-piece rests on the thicknessing table the
distance between it and the cutting circle diameter is adjustable. The upper surface of the work-piece is planed
3.2.2
thicknessing table
table used to support the work-piece during thicknessing at the machine which may comprise an assembly of
rollers, belts or other fixed or moving mechanical elements
3.2.3
surface planing tables
tables in front and behind the cutterblock used to support the work-piece at the machine during planing the
lower surface
3.2.4
integrated feed
feed mechanism for the work-piece which is integrated with the machine and where the work-piece is held and
controlled mechanically during the machining operation
3.2.5
loading of a surface planing and thicknessing machine in the thicknessing mode
manual placing of the work-piece on the thicknessing table at the infeed side with the following presentation to
the integrated feed device
3.2.6
stationery 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
3.2.7
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
3.2.8
safety appliance
additional device which is not an integral part of the machine but which assists the operator in the safe feeding
of the work-piece e.g. push block or push stick
3.2.9
demountable power feed unit
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
3.2.10
kickback
particular form of ejection describing the uncontrolled movement of the work-piece or 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
3.2.12
run-down time
elapsed time from the actuation of the stop control device to spindle stand still
3.2.13
run-up time
elapsed time from the actuation of the start control device until the spindle reaches the actual speed related to
the intended speed
3.2.14
information from the supplier
statement, sales literature, leaflet 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
operator position
position in which the operator stands to feed the work-piece to the tool
3.2.16
machine actuator
power mechanism used to effect motion of the machine
#deleted text$
####3.2.17
embedded software (SRESW)
software that is part of the system supplied by the control manufacturer and which is not accessible for
modification by the user of the machinery
NOTE 1 Firmware or system software are examples of embedded software (EN ISO 13849-1:2008, 3.1.37).$
NOTE 2 Manufacturer means manufacturer of the system.
EXAMPLE The operating system of a speed monitoring device.
##3.2.18
##
application software (SRASW)
software specific to the application, implemented by the machine manufacturer, and generally containing logic
sequences, limits and expressions that control the appropriate inputs, outputs, calculations and decisions
necessary to meet the SRP/CS requirements
[EN ISO 13849-1:2008, 3.1.36]$
##3.2.19$$
## $$
safety related part of a control system (SRP/CS)
part or subpart(s) of a control system that responds to #safety related$ input signals and generates
safety-related output signals
#NOTE 1$ The combined safety-related parts of a control system start at the point where the safety-related signals are
initiated (including e.g. the actuating cam and the roller of the position switch) and end at the output of the power control
elements (including e.g. the main contacts of the contactor). #deleted text$
#NOTE 2 If monitoring systems are used for diagnostics, they are also considered as SRP/CS.
[EN ISO 13849-1:2008, 3.1.1]$
####3.2.20
performance level PL
discrete level used to specify the ability of safety-related parts of control systems to perform a safety function
[EN ISO 13849-1:2008, 3.1.23]$
3.3 Terms
The names of the main parts of the machine are shown in Figures 1 a) and 1 b).
Figure 1 a) — Example of surface planing and thicknessing machine (set up for planing)

Figure 1 b) — Example of surface planing and thicknessing machine (set up for thicknessing)
Key
1 infeed table   6 controls
2 outfeed table   7 infeed table height adjustment
3 tiltable fence   8 bridge guard adjustment
4 bridge guard   9 thicknessing table
5 guard rear the fence  10 guard for thicknessing mode
Figure 1 — Example of surface planing and thicknessing machine
Key
1 anti kickback fingers
2 stop for the rotation of the finger
3 infeed roller
4 outfeed roller
5 cutterblock
6 direction of feed
Figure 2 — Example of internal of a one side planing and thicknessing machine

The most usual working operations when using the machine in the surface planing mode are shown in
Figure 3.
Figure 3 — Planing (left) and edging (right)

4 List of significant hazards
This clause contains !all significant" hazards, hazardous situations and events (see
#EN ISO 12100:2010$), #deleted text$ 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 1:$.
####Table 1 — List of significant hazards
Hazards, hazardous situations and Relevant
No hazardous events EN ISO clause of
12100:2010 this
document
1 Mechanical hazards related to:
- machine parts or work-pieces due to:
6.2.2.1, 6.2.2.2,
5.3.3, 5.3.5,
6.3
5.3.6, 5.3.7
a) shape;
b) relative location; 5.2.2, 5.2.5,
5.3.5, 5.3.6,
5.3.7
c) mass and stability (potential energy 5.3.1, 5.3.6,
of elements which may move under 5.3.7
the effect of gravity);
d) mass and velocity (kinetic energy of 5.2.3, 5.3.7
elements in controlled or uncontrolled
motion);
e) mechanical strength; 5.3.2, 5.3.3,
5.3.5, 5.3.6,
5.3.7, 5.3.8,
5.3.9,
Annex A,
Annex B,
Annex E
- accumulation of energy inside the machinery by:
6.2.10, 6.3.5.4
f) elastic elements (springs); 5.3.6, 5.3.7,
5.4.5
g) liquids and gases under pressure; 5.4.6, 5.4.7
1.1 Crushing hazard
5.3.7
1.2 Shearing hazard 5.3.7
1.3 Cutting or severing hazard 5.3.3, 5.3.7,
6.3
1.4 Entanglement hazard 5.3.7
1.5 Drawing-in or trapping hazard 5.3.7
to be continued
Table 1 — List of significant hazards (continued)
Hazards, hazardous situations and Relevant
No hazardous events EN ISO clause of this
12100:2010 document
1.6 Impact hazard 5.3.6
1.9 High pressure fluid injection or ejection
6.2.10 5.4.7
hazard
2 Electrical hazards due to:
6.2.9, 6.3.5.4
2.1 Contact of persons with live parts 5.4.4
(direct contact)
6.2.9
2.2 Contact of persons with parts which 5.4.4
have become live under faulty
conditions (indirect contact)
4 Hazards generated by noise, resulting in:
6.2.2.2, 6.3
4.1 Hearing loss (deafness), other 5.4.2
physiological disorders (loss of
balance, loss of awareness)
4.2 Interference with speech 5.4.2
communication, acoustic signals
7 Hazards generated by materials and substances (and their constituent
elements) processed or used by the machinery
6.2.3, 6.2.4
7.1 Hazards from contact with or inhalation 5.4.3
of harmful fluids and dusts
6.2.4
7.2 Fire 5.4.1
8 Hazards generated by neglecting ergonomic principles in machinery
design:
6.2.7, 6.2.8,
8.1 Unhealthy postures or excessive effort 5.2.2, 5.4.5,
6.2.11.12, 6.3.5.5,
6.3
6.3.5.6
6.2.8.3
8.2 Hand-arm or foot-leg anatomy 5.2.2, 5.3.7,
5.4.5
6.2.8.6
8.4 Local lighting 6.3
6.2.8, 6.2.11.8,
8.6 Human error, human behaviour 6.3
6.2.11.10, 6.3.5.2,
6.4
6.2.8.f, 6.2.11.8
8.7 Design, location or identification of 5.2.2
manual controls
6.2.8, 6.4.2
8.8 Design or location of visual display 5.4.5, 5.4.9,
units 6.1, 6.2
to be continued
Table 1 — List of significant hazards (concluded)
Hazards, hazardous situations and Relevant
No hazardous events EN ISO clause of
12100:2010 this
document
9 Combination of hazards 6.3.2.1 5.2.3, 5.2.5,
5.2.6, 5.2.7,
5.3.5, 5.4.9,
5.4.10
10 Unexpected start-up, unexpected overrun/overspeed (or any similar
malfunction) from:
6.2.11, 6.3.5.4
10.1 Failure/disorder of the control system 5.2.1, 5.2.2,
5.2.3, 5.2.4,
5.2.5, 5.2.6,
5.2.7
6.2.11.4
10.2 Restoration of energy supply after an 5.2.6
interruption
6.2.11.11
10.3 External influences on electrical 5.2.1, 5.4.8
equipment
10.5 Errors in the software 6.2.11.7 5.2.1
6.2.8, 6.2.11.8,
10.6 Errors made by the operator (due to 5.4.5,
6.2.11.10, 6.3.5.2,
mismatch of machinery with human 5.4.10, 6.3
6.4
characteristics and abilities, see 8.6)
11 Impossibility of stopping the 6.2.11.1, 6.2.11.3, 5.2.4, 5.2.5,
machine in the best possible 6.3.5.2 5.3.4
conditions
13 Failure of the power supply 6.2.11.1, 6.2.11.4 5.2.6
14 Failure of the control circuit 6.2.11, 6.3.5.4 5.2.1, 5.2.7,
5.3.4
15 Errors of fitting 6.2.7, 6.4.5 6.2
16 Break-up during operation 6.2.3 5.3.2, 5.3.8,
5.3.9, Annex
A, Annex B,
Annex C
17 Falling or ejected objects or fluids 6.2.3, 6.2.10 5.3.2, 5.3.3,
5.3.6
18 Loss of stability / overturning of 6.3.2.6 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.
#In addition, the machine should be designed according to the principles of EN ISO 12100:2010 for hazards
relevant but not significant, which are not dealt with by this document (e.g. sharp edges of the machine
frame).$
#For guidance in connection with risk reduction by design see EN ISO 12100:2010, 6.2 and for
safeguarding measures see EN ISO 12100:2010, 6.3.$
5.2 Controls
5.2.1 Safety and reliability of control systems
#deleted text$
For the purpose of this document safety related part of a control system means the system from the initial
device, e.g. push button, 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 at least the requirements of the PL given below in
accordance with the requirements of EN ISO 13849-1:2008:$
 starting: #PL= c$ (see 5.2.3);
 normal stopping: #PL= c$ (see 5.2.4);
 emergency stop: #PL= c$ (see 5.2.5);
 interlocking: #PL= c$ (see 5.2.3, 5.2.6, 5.3.7, 5.3.8);
#deleted text$
 braking: #PL= b or PL= c$ (see 5.3.4);
 preventing of unexpected start up in the event of power supply failure: #PL= c$ (see 5.2.6, 5.2.7);
 brake release: #PL= c$ (see 5.3.4.1, 5.3.4.2);
#deleted text$
 interlocking between the feed drive motor and the cutterblock drive motor: #PL= c$ (see 5.2.3);
 hold to run control: #PL= c$ (see 5.2.3, 5.3.6);
 planing table(s) powered adjustment initiation (s): #PL= c$ (see 5.2.3, #deleted text$);
 thicknessing table powered #adjustment initiation$: #PL= c$ (see 5.2.3).
#deleted text$
Verification: By checking the relevant drawings and/or circuit diagrams and inspection of the machine.
#deleted text$
5.2.2 Position of controls
The electrical control actuator for starting, normal stopping, emergency stop and powered table adjustment (if
fitted-see 5.2.3) shall be located either:
a) on the machine at the infeed side of the machine at least 600 mm from the floor and at least 50 mm
below the upper surface of the surfacing table reachable from the infeed side of the thicknesser, or
b) at a fixed or moveable control panel fixed to the machine at the loading position, the controls of which are
not more than 1 800 mm from the floor and the front face is at a maximum of 650 mm from the infeed
edge. The front face of the panel shall not protrude beyond the machine at the operator position side.
An additional emergency stop actuator, if required in accordance to 5.2.5, shall be located at least 600 mm
from the floor and at the outfeed side of the thicknesser.
Verification: By checking the relevant drawings, measurement and inspection of the machine.
5.2.3 Starting
Before starting or restarting the machine all the safeguards shall be in place and functional. This is achieved
by the interlocking arrangement described in 5.3.7. For non interlocked guards, guides adjustments'
provisions before starting see 6.3 h 4)).
Start or restart shall only be possible by actuation of the start control device provided for that purpose.
For electrically operated machines the requirements of 9.2.5.2 of EN 60204-1:2006 shall apply and in addition:
a) for the purpose of this document "operation" means rotation of the cutterblock and/or the integrated feed
and/or powered adjustment;
#
b) start of the feed motor shall be possible only where the cutterblock drive motor is running e.g. by using a
time delay conforming to PL=b in accordance with the requirements of EN ISO 13849-1:2008. For a
machine with one motor only the start of the feed shall be possible only if the cutterblock drive is running;
c) start of a demountable power feed unit (if fitted) shall only be possible if the cutterblock motor is
running;$
d) design of the control circuits shall be such as to satisfy the starting sequence requirements. If a time
delay device is used the time delay shall be at least equal to the run-up time. The time delay shall be
fixed or the time delay device adjustment shall be sealed.
#When adjustment of the table(s) for planing and/or for thicknessing is powered, the control shall be via a
hold to run control or a preset electronic control.
For machines with adjustment via preset electronic control of table(s) for planing and/or thicknessing:
1) adjustment for the table(s) shall be initiated by a start control (e.g. push button) the safety related
part of control system of which conforms to at least PL=c in accordance with the requirements of
EN ISO 13849-1:2008;
2) at the end of programmed adjustment the power shall be cut to the adjustment actuator in at least
PL=b in accordance with the requirements of EN ISO 13849-1:2008. A new initiation shall be
necessary to perform additional adjustment.
The safety related part of control systems (also see 5.2.1) for start and restart of the machine, for interlocking
between the cutterblock drive motor and the feed motor and for the interlocking between the cutterblock drive
motor and the power supply for a demountable power feed unit (if fitted) shall be at least PL=c in accordance
with the requirements of EN ISO 13849-1:2008.
The safety related part of the control system (also see 5.2.1) for hold-to-run control shall be at least PL=c in
accordance with the requirements of EN ISO 13849-1:2008.$
Verification: By checking the relevant drawings and/or circuit diagrams, inspection of the machine
and !relevant functional" testing of the machine.
5.2.4 Normal stopping
The machine shall be fitted with a stop control system, where by the machine and – if fitted – a demountable
power feed unit-can be brought safely to a complete stop. The stopping action shall include disconnection
from energy supply of all machine actuators and actuate the brake (if fitted see 5.3.4).
#For normal stopping of PDS(SR) (power drive system, safety related) see 4.2.2.2 "safe torque off (STO)”
and 4.2.2.3 “safe stop 1 (SS1)” of EN 61800-5-2:2007
...