Safety of machinery - Electrical equipment of machines - Part 1: General requirements

EN 60204-1:2006
en: Safety of machinery - Electrical equipment of machines - Part 1: General
requirements EN 60204-1:2006/

EUROPEAN STANDARD NORME EUROPEENNE EUROPAlSCHE NORM June 2006
ICS 29.020 Supersedes EN 60204-1:1997
Incorporates corrigendum February 2010
English version
Safety of machinery -Electrical equipment of machinesPart 1: General requirements (IEC 60204-1:2005, modified)

This European Standard was approved by CENELEC on 2006-06-01. CENELEC 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 Central Secretariat or to any CENELEC 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 CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

CENELEC

European Committee for Electrotechnical StandardizationComite Europeen de Normalisation ElectrotechniqueEuropaisches Komitee fur Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, Foreword
The text of the International Standard IEC 60204-1:2005, prepared by IEC TC 44, Safety of machinery - Electrotechnical aspects, together with common modifications prepared by the Technical Committee CENELEC TC44X, Safety of machinery - Electrotechnical aspects, was approved by CENELEC as EN 60204-1 on 2006-06-01.
This European Standard supersedes EN 60204-1:1997.
The following dates were fixed:
- latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2007-06-01
- latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-06-01
NOTE The application of this standard can involve the selection of components and/or parts that are to be integrated with the electrical equipment of a machine in accordance with the instructions and/or specifications of the manufacturers of the components and/or parts.
Also, in the context of legislative duties that are applicable to machinery manufacturers within the European Union it is important to recognise that the safety of electrical equipment can involve the use of equipment and services provided by other parties (see 3.54).
To assist manufacturers in satisfying these duties it can be necessary for the supplier of the equipment to obtain information about its intended use. This can be facilitated by establishing an agreement between the user and supplier on basic conditions and additional user requirements to enable proper design, application and utilization of the electrical equipment of the machine. An enquiry form that can be used for this purpose is provided in Annex B. Such an agreement is not intended to reduce the level of safety of the electrical equipment provided by this standard.
The contents of the corrigendum of February 2010 have been included in this copy. Endorsement notice
The text of the International Standard IEC 60204-1:2005 was approved by CENELEC as a European Standard with agreed common modifications as given below.

COMMON MODIFICATIONS

1 Scope
Replace the sixth paragraph with:
This part of EN 60204 does not specify additional and special requirements that can apply to the electrical equipment of machines including those that
- are intended for use in open air (i.e. outside buildings or other protective structures);
- use, process, or produce potentially explosive material (for example paint or sawdust);
- are intended for use in potentially explosive and/or flammable atmospheres;
- have special risks when producing or using certain materials;
- are intended for use in mines;
- are sewing machines, units, and systems;
NOTE 7 For sewing machines, see EN 60204-31.
- are hoisting machines.
NOTE 8 For hoisting machines, see EN 60204-32.
3 Terms and definitions
3 .56 uncontrolled stop
Replace the note with:
NOTE This definition does not imply any particular state of other (for example, non-electrical) stopping devices, for example mechanical or hydraulic brakes that are outside the scope of this standard.
4 General requirements
4.1 General
In the third paragraph delete:
audible noise at levels that cause health problems to persons;
4.2 Selection of equipment
Replace 4.2.2 with:
4.2.2 Electrical equipment in compliance with the EN 60439 series
The electrical equipment of the machine shall satisfy the safety requirements identified by the risk assessment of the machine. Depending upon the machine, its intended use and its electrical equipment, the designer may select parts of the electrical equipment of the machine that are in compliance with EN 60439-1 and, as necessary, other relevant parts of the EN 60439 series (see also Annex F).
4.4 Physical environment and operating conditions
Replace 4.4.1 with:
4.4.1 General
The electrical equipment shall be suitable for the physical environment and operating conditions of its intended use. The requirements of 4.4.2 to 4.4.8 cover the physical environment and operating conditions of the majority of machines covered by this part of EN 60204. When special conditions apply or the limits specified are exceeded, an agreement between user and supplier (see 4.1) is recommended (see Annex B).
Replace 4.4.3 with:
4.4.3 Ambient air temperature
Electrical equipment shall be capable of operating correctly in the intended ambient air temperature. The minimum requirement for all electrical equipment is correct operation between air temperatures of +5 Replace 4.4.7 with:
4.4.7 Ionizing and non-ionizing radiation
When equipment is subject to radiation (for example microwave, ultraviolet, lasers, X-rays), additional measures shall be taken to avoid malfunctioning of the equipment and accelerated deterioration of the insulation. A special agreement is recommended between the supplier and the user (see Annex B).
Replace 4.4.8 with:
4.4.8 Vibration, shock, and bump
Undesirable effects of vibration, shock and bump (including those generated by the machine and its associated equipment and those created by the physical environment) shall be avoided by the selection of suitable equipment, by mounting it away from the machine, or by provision of anti-vibration mountings. A special agreement is recommended between the supplier and the user (see Annex B).
5 Incoming supply conductor terminations and devices for disconnecting and switching off
5.1 Incoming supply conductor terminations
Add the following paragraph:
See 17.8 for the provision of instructions for maintenance.
5.4 Devices for switching off for prevention of unexpected start-up
Add the following note to the third paragraph:
NOTE 2 Further information on the location and actuation of devices such as those used for the prevention of unexpected start-up is provided in EN 60447.
After the fifth paragraph, replace note 2 with:
NOTE 3 The selection of a device should take into account, for example, information derived from the risk assessment, intended use and foreseeable misuse of the device. For example, the use of disconnectors, withdrawable fuse links or withdrawable links located in enclosed electrical operating areas can be inappropriate for use by cleaners (see 17.2 b)12)).
9 Control circuits and control functions
9. 2.6.3 Enabling control
Replace with:
Enabling control (see also 10.9) is a manually activated control function interlock that:
a) when activated allows a machine operation to be initiated by a separate start control, and
b) when de-activated
- initiates a stop function in accordance with 9.2.5.3, and
- prevents initiation of machine operation.
Enabling control shall be so arranged as to minimize the possibility of defeating, for example by requiring the de-activation of the enabling control device before machine operation may be reinitiated. It should not be possible to defeat the enabling function by simple means.
9.2.7.3 Stop
Replace the first paragraph with:
Cableless control stations shall include a separate and clearly identifiable means to initiate the stop function of the machine or of all the operations that can cause a hazardous situation. The actuating means to initiate this stop function shall not be marked or labelled as an emergency stop device (see10.7).
10 Operator interface and machine-mounted control devices
10.2.1 Colours
Replace Table 2 with:
Table 2 - Colour coding for push-button actuators and their meanings
Colour Meaning Explanation Examples of application RED Emergency Actuate in the event of a hazardous situation or emergency Emergency stop
Initiation of emergency function (see also 10.2.1) YELLOW Abnormal Actuate in the event of an abnormal condition Intervention to suppress abnormal condition
Intervention to restart an interrupted automatic cycle BLUE Mandatory Actuate for a condition requiring mandatory action Reset function GREEN Normal Actuate to initiate normal conditions (See 10.2.1) WHITE No specific meaning assigned For general initiation of functions except for emergency stop START/ON (preferred) STOP/OFF GREY START/ON STOP/OFF BLACK START/ON
STOP/OFF (preferred)
12 Conductors and cables
12.7.8 Construction and installation of conductor wire, conductor bar systems and slip-ring assemblies
Replace the note with:
The protective bonding circuit shall include the covers or co