prEN 1807-2

Safety of woodworking machines - Band sawing machines - Part 2: Log sawing machines

2011-05-09 EMA: WI can be reactivated if draft or resolution for tolerance is received by the end of May.
2011-05-06 EMA: WI deleted following the 3-year timeframe.
2009-09-11 SJ: M/079 and 98/37 removed following request from M. Poidevin.

Sicherheit von Holzbearbeitungsmaschinen - Bandsägemaschinen - Teil 2: Blockbandsägemaschinen

Dieses Dokument behandelt die im Abschnitt 4 aufgeführten signifikanten Gefährdungen, Gefährdungssituationen
und Gefährdungsereignisse, die auf stationäre und verschiebbare Blockbandsägemaschinen mit
Beschickung sowohl von Hand als auch automatisch und/oder Entnahme — im Folgenden als „Maschinen“
bezeichnet —, die konstruiert sind zum Schneiden von Massivholz, wenn sie bestimmungsgemäß und
entsprechend den durch den Hersteller vorhersehbaren Bedingungen verwendet werden.
Diese Dokument gilt nicht für:
Diese Europäische Norm gilt nicht für:
a) Tischbandsägemaschinen und Trennbandsägemaschinen;
ANMERKUNG 1 Tischbandsägemaschinen und Trennbandsägemaschinen sind in prEN 1807-1:2008 erfasst.
b) spezifische Gefährdungen im Zusammenhang mit automatischer Beschickung und/oder Entnahme;
c) jegliche Gefährdungen im Zusammenhang mit der Kombination einer einzelnen Maschine, die mit irgendeiner
anderen Maschine verwendet wird (als Teil einer Linie — z. B. Beschickung und/oder Entnahme mit
automatischen Systemen);
d) jegliche Gefährdungen im Zusammenhang mit jeglichen anderen Bearbeitungsarten (z. B. Fräsen und
Sägen), die damit verbundenen Maschinen oder Bearbeitungsgruppen z. B. Spanern und Kreissägemaschinen
zuzuordnen sind.
Dieses Dokument gilt nicht für Blockbandsägemaschinen, die vor seiner Veröffentlichung als EN hergestellt
wurden.
ANMERKUNG 2 Maschinen mit Handbeschickung und/oder Handentnahme, die in diesem Dokument erfasst sind, sind
unter A.4 des Anhangs IV der Maschinenrichtlinie genannt.

Sécurité des machines pour le travail du bois - Machines à scier à ruban - Partie 2: Scies à grumes

Varnost lesnoobdelovalnih strojev - Tračne žage - 2. del: Žage za razrez hlodovine

General Information

• Status: Not Published
• Publication Date: 09-Jan-2012
• Withdrawal Date: 09-Jul-2012
• ICS: 79.120.10 - Woodworking machines
• Technical Committee: CEN/TC 142 - Woodworking machines - Safety
• Drafting Committee: CEN/TC 142/WG 3 - Bandsawing machines
• Current Stage: 4098 - Decision to abandon - Enquiry
• Start Date: 06-May-2011
• Completion Date: 06-May-2011
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Directive: 98/37/EC - Machinery
• Mandate: M/079 - Mandate to CEN and CENELEC for standardization in the field of machines
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: oSIST prEN 1807-2:2009 - Safety of woodworking machines - Band sawing machines - Part 2: Log sawing machines

Relations

• Revises: EN 1807:1999+A1:2009 - Safety of woodworking machines - Band sawing machines
• Effective Date: 08-Jun-2022
• Revised: EN 1807:1999 - Safety of woodworking machines - Band sawing machines
• Effective Date: 21-Jan-2009

Overview

prEN 1807-2:2009 is a harmonized European standard focused on the safety of woodworking machines, specifically band sawing machines used for log sawing. Developed by the Technical Committee CEN/TC 142 "Woodworking machines - Safety," this standard supersedes EN 1807:1999 and aligns with essential requirements of the Machinery Directive 2006/42/EC. Its primary objective is to identify and mitigate significant hazards involved in operating stationary or mobile log band sawing machines designed for cutting solid wood.

As a type C standard under EN ISO 12100-1:2003, prEN 1807-2 takes precedence over more general safety standards (type A or B) when applicable. This ensures tailored safety requirements specifically address the unique risks in log sawing operations using band sawing machines.

Key Topics

prEN 1807-2:2009 comprehensively covers a broad range of safety aspects for log band sawing machines, including:

• Hazard Identification
  The standard lists significant mechanical and non-mechanical hazards such as cutting risks, ejection hazards, noise, dust emissions, and vibrations.

• Safety Requirements and Measures
  Detailed protective measures address:

  • Control systems reliability and positioning
  • Start, stop, emergency stop functions
  • Speed control and failure modes of power supply and control circuits
  • Mechanical safeguards including blade stability, braking systems, and workpiece supports
  • Prevention of unauthorized or accidental access to moving or hazardous parts

• Non-Mechanical Hazard Controls
  Guidance on fire prevention, safe electrical installations, ergonomic handling, and control of pneumatic, hydraulic, and electromagnetic influences to reduce operator exposure to secondary risks.

• Information for Use
  Manufacturers are required to provide clear markings, user instructions, and safety information to ensure proper machine operation and maintenance.

• Testing and Assessments
  The standard includes Annexes specifying test methods for guard impact resistance, noise emission measurement, braking performance, and verification of electronic safety components.

Applications

prEN 1807-2 applies to manufacturers, designers, and users of log band sawing machines with manual or automatic load/unload features. It ensures:

• Manufacturing Safety Compliance
  Guiding manufacturers to build machines that meet harmonized EU safety requirements.

• Enhanced Operator Protection
  Providing safety measures that minimize risks of injury during log cutting and handling operations.

• Machine Design Innovation
  Encouraging safer design of control systems, mechanical guards, and ergonomic features to improve usability and risk management.

• Regulatory Conformity
  Facilitating conformance with Machinery Directive 2006/42/EC and associated regulations across all CEN member countries.

• Standardized Safety Testing
  Allowing for consistent, verifiable testing methods to assess safety critical components and systems.

Related Standards

• EN ISO 12100-1:2003 Safety of Machinery - General Principles
  Provides fundamental definitions and risk assessment methodologies used as a foundation for prEN 1807-2.

• Machinery Directive 2006/42/EC
  European legislation mandating essential health and safety requirements for machinery, supported by this harmonized standard.

• EN 1807:1999
  The previous edition of safety requirements for band sawing machines, now superseded but historically relevant.

• Other CEN/TC 142 Woodworking Machine Standards
  Complementary standards covering safety of various woodworking equipment, reinforcing comprehensive safety frameworks.

---

Implementing the safety protocols specified in prEN 1807-2 ensures that log band sawing machines operate reliably and securely, protecting workers and meeting regulatory demands. This makes it an essential reference for stakeholders in the woodworking machinery industry aiming for compliance, operational safety, and excellence in machine design.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2009
9DUQRVWOHVQRREGHORYDOQLKVWURMHY7UDþQHåDJHGHOäDJH]DUD]UH]KORGRYLQH
Safety of woodworking machines - Band sawing machines - Part 2: Log sawing
machines
Sicherheit von Holzbearbeitungdmaschinen - Bandsägemaschinen - Teil 2:
Logbandsäge
Sécurité des machines pour le travail du bois - Machines à scier à ruban - Partie 2: Scies
à grumes
Ta slovenski standard je istoveten z: prEN 1807-2
ICS:
25.080.60 Strojne žage Sawing machines
79.120.10 Lesnoobdelovalni stroji Woodworking machines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2009
ICS 79.120.10 Will supersede EN 1807:1999
English Version
Safery of woodworking machines - Band sawing machines - Part
2: Log sawing machines
Sécurité des machines pour le travail du bois - Machines à Sicherheit von Holzbearbeitungdmaschinen -
scier à ruban - Partie 2: Scies à grumes Bandsägemaschinen - Teil 2: Logbandsäge
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 142.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
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. prEN 1807-2:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .4
Introduction .5
1 Scope .5
2 Normative references .6
3 Terms and definitions .8
3.1 General .8
3.2 Definitions .8
3.3 Terminology . 11
4 List of significant hazards . 14
5 Safety requirements and/or measures . 18
5.1 General . 18
5.2 Controls . 18
5.2.1 Safety and reliability of control systems . 18
5.2.2 Position of controls . 20
5.2.3 Starting . 21
5.2.4 Normal stopping . 21
5.2.5 Emergency stop . 22
5.2.6 Tracking mode . 23
5.2.7 Mode selection . 23
5.2.8 Speed changing/monitoring/detection . 24
5.2.9 Control duplication . 25
5.2.10 Failure of the power supply . 25
5.2.11 Failure of the control circuits . 25
5.3 Protection against mechanical hazards . 26
5.3.1 Stability . 26
5.3.2 Risk of break-up during operation . 26
5.3.3 Saw blade holder and saw blade design . 28
5.3.4 Braking . 31
5.3.5 Devices to minimise the possibility or the effect of ejection . 33
5.3.6 Workpiece supports and guides . 33
5.3.7 Prevention of access to moving parts . 33
5.3.8 Dogging . 36
5.4 Protection against non-mechanical hazards . 36
5.4.1 Fire . 36
5.4.2 Noise . 36
5.4.3 Emission of chips and dust . 37
5.4.4 Electricity . 38
5.4.5 Ergonomics and handling . 39
5.4.6 Pneumatics . 39
5.4.7 Hydraulics . 39
5.4.8 Vibration . 40
5.4.9 Electromagnetic compatibility . 40
5.4.10 Laser . 40
5.4.11 Static electricity . 40
5.4.12 Errors of fitting . 40
5.4.13 Supply disconnection (Isolation) . 40
5.4.14 Maintenance . 41
6 Information for use . 41
6.1 General . 41
6.2 Marking . 41
6.3 Instruction handbook . 42
Annex A . 46
Test for adjustable guard over cutting area of saw blade . 46
A.1 Horizontal machines . 46
A.2 Vertical machines . 46
Annex B . 47
Operating conditions for noise emission measurement . 47
B.1 Log band saws . 47
B.2 General data sheet . 47
Annex C . 50
Impact test method for guards . 50
C.1 General . 50
C.2 Test method . 50
C.2.1 Preliminary remarks . 50
C.2.2 Testing equipment . 50
C.2.3 Projectile for guards . 50
C.2.4 Sampling. 50
C.2.5 Test procedure . 50
C.3 Results . 51
C.4 Assessment . 51
C.5 Test report . 51
C.6 Test equipment for impact test . 51
Annex D . 53
Use of well tried components . 53
Annex E . 54
Braking tests . 54
E.1 Conditions for all tests . 54
E.2 Tests . 54
E.2.1 Unbraked run-down time . 54
E.2.2 Run-up time . 54
E.2.3 Braked run-down time . 54
Annex F . 56
Use of electronic components . 56
F.1 General . 56
F.2 SRECS . 56
F.2.1 Components, Hardware . 56
F.2.2 Safety related software . 57
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 98/37/EC . 59
Annex ZB (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42 . 62
Bibliography . 66

Foreword
This document (prEN 1807-2:2009) has been prepared by Technical Committee CEN/TC 142 “Woodworking
machines - Safety”, the secretariat of which is held by UNI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1807:1999.
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, see informative Annexes ZA and ZB, which are integral parts of this
document.
Organisations contributing to the preparation of this European Standard include European Committee of
Woodworking Machinery Manufacturers Association "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 12100-1:2003 for
a description of A, B and C standards).
Introduction
This document has been prepared to be a harmonized 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 defined in EN ISO 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 according to the provisions of this type C standard.
The requirements of this document are directed to manufacturers and their authorized representatives of log
band saws, with and without travelling table, reciprocating carriage, moving head rig or conveyor feed. They
are also useful for designers.
This document also includes provisions and examples of information to be provided by the manufacturer to
the user.
1 Scope
This document deals with the significant hazards, hazardous situations and events as listed in Clause 4 which
are relevant to stationary and displaceable log band sawing machines with either manual or automatic loading
and/or unloading, hereinafter referred to as “machines”, designed to cut solid wood, when they are used as
intended and under the conditions foreseen by the manufacturer.
This document does not apply to:
a) table band saws and band re-saws
NOTE 1 table band saws and band re-saws are covered by prEN 1807-1:2008.
b) specific hazards related to automatic loading and/or unloading.
c) any hazards relating to the combination of a single machine being used with any other machine (as part
of a line – e.g. loading and/or unloading automated systems).
d) any hazards arising from any other machining processes (e.g. milling and sawing) related to associated
machines or cutting groups, e.g. canters and circular saws.
This document is not applicable to log band sawing machines which are manufactured before the date of its
publication as EN.
NOTE 2 - Machines with manual loading and/or unloading covered by this document are listed under A.4 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.
EN ISO 13857:2008, Safety of machinery — Safety distances to prevent danger zones being reached by the
upper and lower limbs (ISO 13857:2008)
EN 349:1993, Safety of machinery — Minimum gaps to avoid crushing of parts of the human body
EN 614-1:2006, Safety of machinery — Ergonomic design principles — Part 1: Terminology and general
principles
EN 894-1:1997, Safety of machinery — Ergonomics requirements for the design of display 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 display and control
actuators — Part 2: Displays
EN 894-3:2000, Safety of machinery — Ergonomics requirements for the design of display 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
machines 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 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 1760-1:1996, Safety of machinery — Pressure sensitive protective devices
Part 1: General principles for the design and testing of pressure sensitive mats and pressure sensitive floors
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 control gear assemblies — Part 1: Type tested and partially
type tested assemblies (IEC 60439-1:1999)
EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)
EN 60825-1:1994, Safety of laser products — Equipment classification, requirements and user’s guide (IEC
60825-1:1993)
EN 61310-1:1995, Safety of machinery — Indication, marking and actuation — Part 1: Requirements for visual,
auditory and tactile signals (IEC 61310-1:1995)
EN 61496-1:2004, Safety of machinery — Electro−sensitive protective equipment — Part 1: General
requirements and tests (IEC 61496-1:2004, modified)
CEN/TS 61496-2:2006, Safety of machinery — Electro-sensitive protective equipment
Part 2 : Particular requirements for equipment using active opto-electronic protective devices (IEC 61496-
2:2006)
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, moveable 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, moveable sources in reverberant fields — Part 2: 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 anechoïc and semi-anechoïc 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 discrete points (ISO 9614-1:1993)
EN ISO 11202:1995, Acoustics — Noise emitted by machinery and equipment — Measurement of emission
sound pressure levels at a workstation and at other specified positions (ISO 11202:1995)
EN ISO 11204:1995, Acoustics — Noise emitted by machinery and equipment — Measurement of emission
sound pressure levels at a workstation and at other specified positions — Method requiring environmental
corrections (ISO 11204:1995)
EN ISO 11688-1:1998, Acoustics — Recommended practice for the design of low noise machinery and
equipment — Part l: Planning (ISO/TR 11688- 1:1995)
EN ISO 12100-1:2003, Safety of machinery — Basic concepts, general principles for design — Part 1: Basic
terminology and 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 13849-1:2006, Safety of machinery — Safety-related parts of controls systems — Part 1: General
principles for design (ISO/FDIS 13849-1:2006)
EN ISO 13849-2:2003, Safety of machinery — Safety-related parts of controls systems — Part 2: Validation
(ISO 13849-2:2003)
EN ISO 13850:2006, Safety of machinery — Emergency stop — Principles for design (ISO 13850:2006)
ISO 1940-1:1996, Mechanical vibration — Balance quality requirements of rigid rotors
Part 1 : Determination of permissible residual unbalance
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 — 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 12100-1:2003 and the following
apply.
3.2 Definitions
3.2.1
band sawing machine
a sawing machine with one or more saw blades in the form of continuous bands each mounted on and
running between two or more band wheels
3.2.2
saw blade straining
force exerted on the saw blade to keep it in position on the band wheels during cutting (see Figure 8)
3.2.3
saw blade tensioning
process used to form the cross-section of the saw blade, either by rolling or hammering, in order to ensure
that the front and back edges of the saw blade grip the band wheels
3.2.4
saw blade tracking
means used to maintain the position of the saw blade on the band wheels (see Figure 9)
3.2.5
dogging
means of securing a log for cutting.
3.2.6
log band saw
band sawing machine designed for the primary conversion of logs
3.2.6.1
travelling table log saw
A hand fed or power fed log band saw fitted with a travelling table and dogging (see Figure 1).
3.2.6.2
reciprocating carriage log saw
power fed log band saw fitted with a reciprocating carriage and dogging (see Figure 2).
3.2.6.3
conveyor log saw
log band saw fitted with a conveyor as an integrated feed device (see Figure 3)
3.2.6.4
Moving head rig log saw (gantry log saw)
A log band saw with a moving saw unit (see Figure 4)
3.2.7
manual control
situation where each process movement is initiated by the operator
3.2.8
machine actuator
power mechanism used to effect motion of the machine
3.2.9
hand feed
manual holding and/or guiding of the workpiece. Hand feed includes the use of a hand operated carriage on
which the workpiece is placed manually or clamped and the use of a demountable power feed unit
3.2.10
integrated feed
feed mechanism for the workpiece or tool which is integrated with the machine and where the workpiece or
machine element with incorporated tool are held and controlled mechanically during the machining operation
3.2.11
run-up time
elapsed time from the actuation of the start control device until the driven band wheel reaches the intended
speed
3.2.12
run-down time
elapsed time from the actuation of the stop control device until driven band wheel standstill
3.2.13
manual loading of power fed machines
where the workpiece is presented by the operator directly to the machine integrated feed, e.g. rotating feed
rollers, travelling table or reciprocating carriage; i.e. for which there is no intermediate loading device to
receive and transfer the workpiece from the operator to the integrated feed
3.2.14
manual unloading of power fed machines
where the workpiece is removed by the operator directly from the machine outfeed; i.e. for which there is no
intermediate unloading device to receive and transfer the workpiece from the machine outfeed to the operator
3.2.15
cutting area
area where the saw blade can be involved in the cutting process
3.2.16
non-cutting area
area where the saw blade is not involved in the cutting process
3.2.17
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
3.2.18
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
3.2.19
information of the supplier
statements, sales literature, leaflets or other documents, where the manufacturer (or supplier) declares either
the characteristics or the compliance of the material or product to a relevant standard
3.2.20
safety programmable logic controller (PLC)
programmable logic controller dedicated to safety related application designed in the required category
according to prEN ISO 13849-1:2006
3.2.21
safety related electrical control system (SRECS)
electrical part of a control system whose failure can result in an immediate increase of the risk(s) (3.4 of
EN 62061:2005)
3.2.22
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 synonymous with 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.
3.2.23
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 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 names of the main parts of the machines are shown in Figures 1 to 4 and Tables 1 to 4.

Figure 1 — Travelling table log saw
Table 1 — Terminology for travelling table log saw
1 Travelling table
2 Dogging
3 Fence
4 Saw blade
5 Band wheel guards
6 Adjustable guard for saw blade
7 Below travelling table height by not more than 100 mm
Figure 2 — Reciprocating carriage log saw
Table 2 — Terminology for reciprocating carriage log saw
1 Reciprocating log carriage
2 Band wheel guard
3 Saw guides
4. Saw blade
5 Adjustable guard for saw blade
6 Dust extraction outlet
7 Pit
Figure 3 — Conveyor fed log saw
Table 3 —Terminology for conveyor fed log saw
1 Conveyor
2 Saw blade
3 Spiked idle roller
4 Band wheel guards
Figure 4 — Moving head rig log saw
Table 4 — Terminology for moving head rig log saw
1 Moving head rig
2 Saw blade
3 Band wheel guard
4 List of significant hazards
This clause contains the 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 5 in accordance with Annex A of EN 1050:1996.
Table 5 — List of significant hazards – Log band sawing machines
Hazards, hazardous situations and Relevant sub-
hazardous events clause of this
No EN ISO 12100 document
Part 1: Part 2:
2003 2003
1 Mechanical hazards related to:
- machine parts or workpieces:
a) shape; 4.2 4.2.1, 5.3.2, 5.3.7.1,
4.2.2, 5 5.3.7.3, 5.3.8,
5.4.3, 5.4.12
b) relative location; 5.2.2, 5.3.3,
5.3.7, 5.3.8,
5.4.5, 5.4.10,
5.4.14
c) mass and stability (potential energy of 5.2.5, 5.2.10,
elements which may move under the 5.3.3, 5.4.5,
effect of gravity) 5.4.14
d) mass and velocity (kinetic energy of 5.2.3, 5.2.4,
elements in controlled or uncontrolled 5.2.8, 5.3.4,
motion); 5.3.7, 5.4.5
e) mechanical strength. 5.3.2, 5.3.4,
Annex A,
Annex C
- accumulation of energy inside the machinery:
f) liquids and gases under pressure; 4.2 4.10, 5.5.4 5.4.6, 5.4.7
1.1 Crushing hazard 4.2.1 5.2.3, 5.2.4,
5.2.5, 5.2.7,
5.2.8, 5.2.9,
5.3.4, 5.3.6,
5.3.7, 5.3.8,
5.4.14,   6.3
1.2 Shearing hazard 5.2.3, 5.2.4,
5.2.5, 5.2.7,
5.2.8, 5.2.9,
5.3.4, 5.3.6,
5.3.7, 5.3.8,
5.4.14,   6.3
1.3 Cutting or severing hazard 5.2.3, 5.2.4,
5.2.5, 5.2.7,
5.2.8, 5.2.9,
5.3.4, 5.3.6,
5.3.7, 5.3.8,
5.4.14,   6.3
1.4 Entanglement hazard 5.2.3, 5.2.4,
5.2.5, 5.2.7,
5.2.8, 5.2.9,
5.3.4, 5.3.6,
5.3.7, 5.3.8,
5.4.14,   6.3
1.5 Drawing-in or trapping hazard 5.2.3, 5.2.4,
5.2.5, 5.2.7,
5.2.8, 5.2.9,
5.3.4, 5.3.6,
5.3.7, 5.3.8,
5.4.14,   6.3
1.6 Impact hazard 5.2.3, 5.2.4,
5.2.5, 5.2.7,
5.2.8, 5.2.9,
5.3.4, 5.3.6,
5.3.7, 5.4.14,
6.3
1.8 Friction or abrasion hazard 5.2.3, 5.2.4,
5.2.7, 5.2.9,
5.3.4, 5.3.7,
5.3.8, 5.4.14,
6.3
1.9 High pressure fluid injection or ejection 5.4.6, 5.4.7
hazard
2 Electrical hazards due to:
2.1 Contact of persons with live parts (direct 4.3 4.9, 5.5.4 5.4.4, 5.4.13
contact)
2.2 Contact of persons with parts which have 4.3 4.9 5.4.4, 5.4.13
become live under faulty conditions
(indirect contact)
2.4 Electrostatic phenomena 4.3 4.9 5.4.11
4 Hazards generated by noise, resulting in:
Hearing loss (deafness), other 4.5 4.2.2, 5 5.4.2, Annex B
4.1
physiological disorders (loss of balance,
loss of awareness)
Interference with speech communication,  6.3
4.2
acoustic signals.
Hazards generated by radiation
6.5 Lasers 4.7 5.4.10, 6.3
7 Hazards generated by materials and substances (and their constituent elements)
processed or used by the machinery
7.1 Hazards from contact with or inhalation of 4.8 4.3b, 4.4 5.4.3, 6.3
harmful fluids and dusts
7.2 Fire hazard 4.8 4.4 5.4.1
8 Hazards generated by neglecting ergonomic principles in machinery design
related to:
8.1 Unhealthy postures or excessive effort 4.9 4.7, 4.8.2, 5.2.2, 5.4.5
4.11.12,
5.5.5, 5.5.6
8.2 Hand-arm or foot-leg anatomy 4.9 4.8.3 5.4.5
8.4 Local lighting 4.8.6 6.3
8.5 Mental overload and underload, stress 4.9 4.8.5 6.3
8.6 Human error, human behaviour 4.8, 4.11.8, 6.3
4.11.10,
5.5.2, 6
8.7 Design, location or identification of 4.8.7, 5.2.2, 5.4.5
manual controls 4.11.8
8.8 Design or location of visual display units 4.8.8, 6.2 5.2.2, 5.4.5
4.11
9 Combination of hazards
Unexpected start up, unexpected overrun/overspeed (or any similar malfunction)
from:
10.1 Failure/disorder of the control system 4.11, 5.5.4 5.2.1, 5.2.11,
5.4.13
10.2 Restoration of energy supply after an 4.11.4 5.2.10, 5.4.6,
interruption 5.4.7
10.3 External influences on electrical 4.11.11 5.4.9, Annex F
equipment
10.5 Errors in the software 4.11.7 5.2.1.3, Annex
F
5.4.5, 6.3
10.6 Errors made by the operator (due to 4.9 4.8, 4.11.8,
mismatch of machinery with human 4.11.10,
characteristics and abilities, see 8.6) 5.5.2, 6
5.2.4, 5.2.5,
11 Impossibility of stopping the machine 4.11.1,
5.2.7, 5.4.13
in the best possible conditions 4.11.3,
5.5.2
12 5.2.8
Variations in the rotational speed of 4.2.2, 4.3
tools
5.2.10
13 Failure of the power supply 4.11.1,
4.11.4
5.2.11
14 Failure of the control circuit 4.11, 5.5.4
5.4.12
15 Errors of fitting 4.9 4.7, 6.5
5.3.2
16 Break-up during operation 4.2.2 4.3
5.3.2, 5.3.3,
17 Falling or ejected objects or fluids 4.2.2 4.3, 4.10
5.3.5, Annex C
5.3.1
18 Loss of stability / overturning of 4.2.2 5.2.6
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 according to 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 in the
clauses listed below, in accordance with the requirements of EN ISO 13849-1:2006:
 starting the drive motor for the driven band wheel: category 1 or 3 (see 5.2.3);
 starting the integrated feed: category 1 or 3 (see 5.2.3);
 normal stopping: category 1 or 3 (see 5.2.4);
 emergency stop (if required): category 1 or 3 (see 5.2.5);
 speed changing by belt position: category 1 (see 5.2.8);
 speed monitoring: category 2 (see 5.2.8);
 interlocking: category 1 or 3 (see 5.2.3, 5.2.8, 5.3.4, 5.3.7.1.1, 5.3.7.1.2.1,);
 interlocking with guard locking: category 1 or 3 (see 5.2.8, 5.3.7.2);
 mode selection (if required): category 1 or 3 (see 5.2.7);
 opening/closing the adjustable saw blade guard during movement of the reciprocating carriage, moving
head rig, conveyor feed or travelling table: category 1 or 3 (see 5.3.7.1.2);
 initiation of the braking system: category 1, 2 or 3 (see 5.3.4);
 brake release: category 1 (see 5.3.4.4);
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 13849-1:2006 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
Components are considered well-tried if they comply with 6.2.4 of EN ISO 13849-1:2006 (see also Annex D).
NOTE 1 Well-tried electrical components are listed in Table D.3 of EN 13849-2:2003.
NOTE 2 EN 13849-2:2003 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.
5.2.1.3 Use of electronic components
If electronic components are used the requirements given in Annex F shall be met.
Verification: By checking the relevant drawings and/or circuit diagrams, inspection of the machine,
measurement and relevant functional testing of the machine.
5.2.1.4 Use of 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 13849-1:2006;
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 13849-1:2006;
c) if a time delay is used it shall be either of fail safe technique or shall conform to the requirements of
category 1 or 3 according to EN ISO 13849-1:2006.
NOTE 1 Also see 5.4.9 for the EMC requirements on the complete band sawing machine.
Verification: By checking the relevant drawings and/or circuit diagrams, inspection of the machine,
measurement and relevant functional testing of the machine.
NOTE 2 For the components characteristics a confirmation from the components' manufacturers can be useful.
5.2.2 Position of controls
Controls required for the normal processing operation of log band saws shall either:
a) be positioned at least 1,2 m from the cutting area as shown in Figure 5;or
b) be separated from the cutting area by a deterring/impeding device which creates a reach distance of
1,2 m to the saw blade.
Setting controls which are not required during the normal processing operation may be positioned within 1,2 m
of the cutting area.
Control devices shall not be located in the path of the reciprocating carr
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