EN 940:1997/prA1

Safety of woodworking machines - Combined woodworking machines

20090625 - TC confirmed not to publish +A1:2009 but to publish this revision instead.

Sicherheit von Holzbearbeitungsmaschinen - Kombinierte Holzbearbeitungsmaschinen

Sécurité des machines pour le travail du bois - Machines combinées pour le travail du bois

Varnost lesnoobdelovalnih strojev - Kombinirani lesnoobdelovalni stroji

General Information

• Status: Not Published
• ICS: 79.120.10 - Woodworking machines
• Technical Committee: CEN/TC 142 - Woodworking machines - Safety
• Drafting Committee: CEN/TC 142/WG 6 - Combined woodworking machines
• Current Stage: 5098 - Decision to abandon - Formal Approval
• Start Date: 17-Jun-2009
• Completion Date: 14-Apr-2025
• 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: 89/392/EEC - Machinery - Safety of machinery: general essential health and safety requirements
• 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: SIST EN 940:2000/kprA1:2009 - Safety of woodworking machines - Combined woodworking machines

Relations

• Replaced By: EN 940:2009 - Safety of woodworking machines - Combined woodworking machines
• Effective Date: 15-Aug-2009
• Amends: EN 940:1997 - Safety of woodworking machines - Combined woodworking machines
• Effective Date: 08-Jun-2022

Overview

The EN 940:1997/prA1 standard, titled Safety of woodworking machines - Combined woodworking machines, is a European standard developed and maintained by the Technical Committee CEN/TC 142. This amendment, published in 2009, revises the original 1997 standard to enhance safety requirements, clarify definitions, and update normative references to align with newer standards. The document specifies critical safety aspects for stationary and movable combined woodworking machines integrating units like surface planing, circular sawing, vertical spindle moulding, boring (mortising), and thickness planing, primarily for processing solid wood and wood-derived panels.

This standard supports compliance with the Machinery Directive and aims to reduce the risk of hazards associated with operating combined woodworking machines.

Key Topics

• Scope and Application
  The standard pertains to combined woodworking machines with two or more integrated units such as planers, saws, moulders, boring and thickness planers. It applies to machines intended for manufacturing using solid wood, chipboard, fibreboard, plywood, and laminated materials.

• List of Significant Hazards
  EN 940/prA1 identifies and categorizes significant mechanical, electrical, thermal, ergonomic, and environmental hazards, including but not limited to:

  • Crushing, shearing, cutting, entanglement, and trapping
  • Electrical contact hazards (direct and indirect)
  • Thermal burns from heat sources
  • Noise-induced hearing loss and physiological disorders
  • Exposure to harmful dusts and fluids
  • Fire and explosion risks
  • Ergonomic concerns like unhealthy postures and excessive operator effort
  • Risks from unexpected machine start-up and failures such as power supply or control circuit loss
  • Mechanical instability such as loss of machine stability or falling objects

• Safety Requirements and Measures
  The amendment details control system safety, operator control positioning, emergency stops, mode selection, power supply failure response, ergonomics, and material handling. It integrates ergonomic standards to ensure operator comfort and safety, emphasizing fatigue prevention and optimal control design.

• Updated Normative References
  Modifications include replacing outdated references with the latest standards such as EN ISO 12100-1:2003 for risk assessment principles, EN ISO 13850:2006 for emergency stop design, and updated electrical and electromagnetic compatibility standards. This ensures coherence with modern safety and engineering practices.

• Information for Use and Marking
  The standard specifies requirements for safety-related information, including clear marking and thorough instruction handbooks to inform operators about hazards, safe operation, and maintenance procedures.

Applications

• Manufacturing and Woodworking Industry
  EN 940:1997/prA1 is vital for manufacturers, safety engineers, and compliance officers involved with combined woodworking machinery. It guides the design, installation, operation, and maintenance of machines used in furniture making, cabinetry, flooring, and other wood processing sectors.

• Machine Design and Development
  Machine manufacturers reference this standard during design to incorporate safest possible controls, safeguards, and ergonomics. It helps ensure their machines meet European regulatory requirements and are minimized for operator risk.

• Workplace Safety Compliance
  Employers and workplace safety regulators use EN 940/prA1 to assess risk controls, verify machinery compliance, and implement adequate safety training to prevent accidents involving combined woodworking machines.

• Certification and Regulatory Approval
  The standard supports conformity assessment processes required under the Machinery Directive and related European regulations, facilitating machine certification and safe market deployment.

Related Standards

• EN ISO 12100 (2003) - Safety of machinery - Basic concepts and design principles for risk assessment
• EN ISO 13850 (2006) - Emergency stop principles for machinery
• EN 60204-1 (2006) - Safety of electrical equipment on machinery
• EN 614-1 (2006) and EN 1005 Series - Ergonomic design principles and human physical performance
• EN 50370 Series - Electromagnetic compatibility for machine-tools
• EN 61310-1 (2008) - Safety indications and markings on machinery
• EN 847 -1 (2005) and EN 848-1 (2007)** - Tooling and machine-specific safety standards for woodworking

These complementary standards enhance the applicability and detail of safety practices for woodworking machinery beyond the combined machine context.

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Keywords: EN 940:1997/prA1, combined woodworking machines safety, CEN woodworking standards, woodworking machine hazards, woodworking machine ergonomics, machinery directive compliance, woodworking machine control systems, woodworking machine safety measures, woodworking machine risk assessment, European woodworking standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2009
Varnost lesnoobdelovalnih strojev - Kombinirani lesnoobdelovalni stroji
Safety of woodworking machines - Combined woodworking machines
Sicherheit von Holzbearbeitungsmaschinen - Kombinierte Holzbearbeitungsmaschinen
Sécurité des machines pour le travail du bois - Machines combinées pour le travail du
bois
Ta slovenski standard je istoveten z: EN 940:1997/prA1
ICS:
79.120.10 Lesnoobdelovalni stroji Woodworking machines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
FINAL DRAFT
EN 940:1997
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
January 2009
ICS 79.120.10
English Version
Safety of woodworking machines - Combined woodworking
machines
Sécurité des machines pour le travail du bois - Machines Sicherheit von Holzbearbeitungsmaschinen - Kombinierte
combinées pour le travail du bois Holzbearbeitungsmaschinen
This draft amendment is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee
CEN/TC 142.
This draft amendment A1, if approved, will modify the European Standard EN 940:1997. If this draft becomes an amendment, CEN
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment
into the relevant national standard without any alteration.
This draft amendment 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.
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: rue de Stassart, 36  B-1050 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 940:1997/prA1:2009: E
worldwide for CEN national Members.

Contents Page
Foreword.3
1 Modification to the Foreword .4
2 Modification to Clause 1, Scope.4
3 Modification to Clause 2, Normative references .4
4 Modification to 3.1, Definitions.6
5 Modification to Clause 4, List of hazards.6
6 Modification to Clause 5, Safety requirements and/or measures.8
7 Modification to 5.1.1, Safety and reliability of control systems.8
8 Modification 5.1.2, Position of controls.8
9 Modification to 5.1.3, Starting.9
10 Modification to 5.1.4, Normal stopping .9
11 Modification to 5.1.5, Emergency stop .9
12 Modification to 5.1.6, Mode selection .9
13 Modification to 5.1.8, Failure of power supply.9
14 Modification to 5.3.1, Fire and explosion .9
15 Modification to 5.4, Electricity.9
16 Modification to 5.5, Ergonomics and handling.9
17 Modification to 5.12, Radiation.10
18 Modification to 5.16, Isolation .10
19 Modification to 5.17, Maintenance .10
20 Modification to Clause 6, Information for use (hanging paragraph) .10
21 Modification to 6.2, Marking .11
22 Modification to 6.3, Instruction handbook .11
23 Modification of Annex A, Test for the stability and rigidity of a combined machine fitted
with a mortising element.11
24 Modification to Annex ZA .12
25 Addition of Annex ZB .13

Foreword
This document (EN 940:1997/prA1:2009) 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 Unique Acceptance Procedure.
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.
1 Modification to the Foreword
Replace the fourth paragraph with the following:
"For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this
document.".
2 Modification to Clause 1, Scope
Replace first paragraph with:
"This document specifies the significant hazards, hazardous situations and events as listed in Clause 4 which
are relevant to stationary and displaceable combined woodworking machines with two or more of only the
following integrated units:
 surface planing,
 circular sawing (working simultaneously or not with vertical spindle moulding unit),
 vertical spindle moulding,
 boring [mortising] and
 thickness planing)
hereinafter referred to as machines, designed to cut solid wood, chipboard, fibreboard, plywood, and also
these materials where they are covered with plastic laminates or edging or veneer, when they are used as
intended and under the conditions foreseen by the manufacturer.".
Delete the second and third paragraphs and item d) in the fourth paragraph and renumber the last item.
3 Modification to Clause 2, Normative references
Replace the standard paragraph with the following: "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.".
Delete reference EN 292-1:1991 in Clause 2 and replace "EN 292-1:1991" with "EN ISO 12100-1:2003"
throughout the document.
Delete references EN 292-2:1991 and EN 292-2:1991/A1:1995.
Delete reference to EN 418:1992 and add the following: "EN ISO 13850:2006, Safety of machinery —
rd th
Emergency stop — Principles for design (ISO 13850:2006)" and replace "EN 418:1992" in 5.1.5, 3 and 4
paragraphs, with "EN ISO 13850:2006".
Replace "EN 847-1:1997" with "EN 847-1:2005" throughout the document.
Replace "EN 848-1:1997" with "EN 848-1:2007" throughout the document.
Replace "EN 859:1997" with "EN 859:2007" throughout the document.
Replace "EN 860:1997" with "EN 860:2007" throughout the document.
Replace "EN 861:1997" with "EN 861:2007" throughout the document.
Replace "prEN 1870-1:1995" with "EN 1870-1:2007" throughout the document.
Replace "EN 60204-1:1992" with "EN 60204-1:2006" and add in the title
"(IEC 60204-1:2005, modified)".
Delete EN 60227-1 and add "HD 21.1 S4:2002, Cables of rated voltages up to and including 450/750 V and
having thermoplastic insulation — Part 1: General requirements" and replace "prEN 60227-1" with "HD 21.1
S4:2002" throughout the document.
Replace prEN 60245-1 with "HD 22.1 S4:2002, Cables of rated voltages up to and including 450/750 V and
having cross-linked insulation — Part 1: General requirements" and replace "prEN 60245-1" with "HD 22.1
S4:2002" throughout the document.
Replace EN 60439-1 prA 11:1995 with "EN 60439-1:1999, Low-voltage switchgear and controlgear
assemblies — Part 1: Type-tested and partially type-tested assemblies (IEC 60439-1:1999)" and replace
"EN 60439-1/prA 11:1995" with "EN 60439-1:1999" throughout the text.
Replace "EN 60497-4-1:1992" with "EN 60497-4-1:2001" throughout the document and add in the title "(IEC
60497-4-1:2000)".
Replace "EN 60497-5-1:1991" with "EN 60497-5-1:2004" throughout the document and add in the title "(IEC
60947-5-1:2003)".
Replace "EN 61029-1:1995" with "EN 61029-1:2000" throughout the document and replace in the title "(IEC
1029-1:1990, modified)" with "(IEC 61029-1:1990, modified)".
Add the following references:
"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 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 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 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 61310-1:2008, Safety of machinery — Indication, marking and actuation — Part 1: Requirements for
visual, auditory and tactile signals (IEC 61310-1:2007)
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)".
4 Modification to 3.1, D
...