EN 50370-2:2003

Electromagnetic compatibility (EMC) - Product family standard for machine tools - Part 2: Immunity

This standard deals with the electromagnetic immunity of machine tools designed exclusively for industrial and similar purposes that use electricity, the rated voltage of the machine tool not exceeding 1 000 V a.c. or 1 500 V d.c. between lines. Machine tools may incorporate motors, heating ele¬ments or their combination, may contain electric or electronic circuitry, and may be powered by the mains, or any other electrical power source. This immunity standard may also be used for assessment of equipment used in other environments, which require less stringent immunity levels (residential, light industry…) than the industrial environment. This standard is not intended for the EMC conformity assessment of modules to be placed on the market separately. This standard is not intended for complying with Machinery Directive 98/37/EC. Hence safety considerations are not covered by this standard. This standard does not cover fixed installations as defined in the Guide to the Application of Directive 89/336/EEC, published by the European Commission. This standard does not apply to apparatus intended to be used in locations where special electromagnetic conditions prevail, such as the pres¬ence of high electromagnetic fields (e.g. in the vi¬cinity of a broadcast transmitting station) or where high pulses occur on the power network (e.g. in a power generator station). In these instances special mitigation measures may have to be employed. Immunity requirements in the frequency range 0 Hz to 400 GHz are covered. No measurements need to be performed at frequencies where no requirements are specified.

Elektromagnetische Verträglichkeit (EMV) - Produktfamiliennorm für Werkzeugmaschinen - Teil 2: Störfestigkeit

Diese Norm gilt für die Störfestigkeit gegen elektromagnetische Phänomene für Werkzeugmaschinen, die ausschließlich für industrielle und ähnliche Anwendungen bestimmt sind, Elektrizität benutzen und deren Nennbetriebsspannung 1 000 V Wechselspannung oder 1 500 V Gleichspannung zwischen den Versor-gungsleitungen nicht überschreitet. Werkzeugmaschinen können Motoren, Heizungselemente oder deren Kombination enthalten; sie können elektrische oder elektronische Schaltkreise enthalten und können aus dem Stromversorgungsnetz oder an-deren Stromquellen versorgt werden. Diese Störfestigkeitsnorm kann auch für die Bewertung von elektrischen Betriebsmittel verwendet werden, die in anderen Umgebungen betrieben werden, die geringere Anforderungen an die Störfestigkeit erfordern als der Industriebereich (wie Wohnbereich, Kleinbetriebe ....). Diese Norm ist nicht für die Bewertung der Übereinstimmung mit EMV-Anforderungen für Baugruppen (Modulen) vorgesehen, die getrennt (einzeln) in Verkehr gebracht werden. Diese Norm ist nicht für die Übereinstimmung mit den Anforderungen der Maschinen-Richtlinie 98/37/EG vor¬gesehen. Diese Norm deckt keine Anforderungen zur Sicherheit ab. Diese Norm deckt keine ortsfesten Anlagen ab, wie sie in dem Leitfaden zur Anwendung der Richtlinie 89/336/EWG des Rates vom 3. Mai 1989 zur Angleichung der Rechtsvorschriften der Mitgliedstaaten über die elektromagnetische Verträglichkeit definiert sind, der von der Europäischen Kommission herausgegeben wurde. Diese Norm gilt nicht für elektrische Betriebsmittel, die für den Einsatz an Orten vorgesehen sind, an denen spezielle Bedingungen bezüglich der elektromagnetischen Umgebung bestehen, wie z. B. das Vorhandensein von hohen elektromagnetischen Felder (zum Beispiel in der Nähe von Rundfunksendern) oder das Auftreten von hohen transienten Überspannungen auf dem Stromversorgungsnetz zu erwarten sind (zum Beispiel in einem Kraftwerk). In diesen Fällen können spezielle EMV-Maßnahmen erforderlich werden. Die Anforderungen zur Störfestigkeit gelten im Frequenzbereich von 0 Hz bis 400 GHz. Prüfungen sind nicht erforderlich bei den Frequenzen, für die keine Grenzwerte festgelegt sind.

Compatibilité électromagnétique (CEM) - Norme de famille de produits pour les machines-outils - Partie 2: Immunité

Cette norme traite de l’immunité électromagnétique des machines-outils conçues exclusivement pour des applications industrielles et analogues qui utilisent l’électricité, la tension assignée de la machine-outil ne dépassant pas 1 000 V en courant alternatif ou 1 500 V en courant continu entre phases. Les machines-outils qui incorporent des moteurs, des éléments chauffants ou des combinaisons de ceux-ci, peuvent contenir des circuits électriques ou électroniques et peuvent être alimentées par le réseau électrique ou par toute autre source d’énergie électrique. Cette norme d’immunité peut également être utilisée pour l’évaluation des matériels utilisés dans d’autres environnements qui exigent des niveaux d’immunité moins sévères (environnement domestique, industriel léger…) que l’environnement industriel. Cette norme n’est pas destinée à l’évaluation de conformité CEM des modules devant être commercialisés individuellement. Cette norme n’est pas prévue pour la conformité à la Directive Machine 98/37/CE. C’est la raison pour laquelle elle ne traite pas des aspects de sécurité. Cette norme ne couvre pas les installations fixes telles qu’elles sont définies dans le Guide d’application de la Directive 89/336/CEE, publié par la Commission Européenne. Cette norme ne s’applique pas aux appareils destinés à être utilisés dans des emplacements présentant des conditions électromagnétiques particulières, telles que la présence de champs électromagnétiques élevés (par exemple à proximité d’une station d’émission de radiodiffusion) ou le cas d’impulsions élevées sur le réseau électrique (par exemple dans une centrale électrique). Dans de tels cas, des mesures particulières de réduction peuvent s’avérer nécessaires. Les exigences d’immunité dans la gamme de fréquences de 0 Hz à 400 GHz sont couvertes. Il n’est pas nécessaire de réaliser des mesures aux fréquences pour lesquelles aucune exigence n’a été spécifiée.

Electromagnetic compatibility (EMC) - Product family standard for machine tools - Part 2: Immunity

General Information

• Status: Published
• Publication Date: 06-Jan-2003
• Withdrawal Date: 31-Oct-2005
• ICS: 25.080.01 - Machine tools in general
• ICS: 33.100.20 - Immunity
• Technical Committee: CLC/TC 210 - Electromagnetic Compatibility (EMC)
• Drafting Committee: IEC/TC CISPR - IEC_TC_CISPR
• Parallel Committee: IEC/TC CISPR - IEC_TC_CISPR
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 25-Jun-2025
• Completion Date: 23-Sep-2025
• Directive: 2004/108/EC - Directive 2004/108/EC of the European Parliament and of the Council of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC
• Directive: 2004/108/EU - DIRECTIVE 2004/108/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC
• Directive: 2014/30/EU - Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)
• Directive: 89/336/EEC - Electromagnetic compatibility (EMC)
• Mandate: M/404 - Standardisation Mandate to CEN, CENELEC and ETSI for harmonized standard according to the Electro Magnetic Compatibility (EMC) Directive 2004/108/EC
• Ref Project: SIST EN 50370-2:2003 - Electromagnetic compatibility (EMC) - Product family standard for machine tools -- Part 2: Immunity

Overview

EN 50370-2:2003 - Electromagnetic compatibility (EMC) - Product family standard for machine tools - Part 2: Immunity (CLC/CENELEC) specifies electromagnetic immunity requirements for machine tools designed for industrial and similar purposes. It covers machine tools using electricity with rated voltages up to 1 000 V a.c. or 1 500 V d.c. between lines, and addresses immunity in the frequency range 0 Hz to 400 GHz. The standard defines test methods, performance criteria, test report formats and conditions for assessing conformity with EMC immunity requirements. It is not intended for standalone market modules, Machinery Directive compliance, fixed installations, or locations with special electromagnetic conditions (e.g., near high-field transmitters or power generator stations). Safety aspects are explicitly excluded.

Key Topics

• Scope and limits: industrial machine tools (motors, heating elements, electronic/control circuitry), mains or other power sources; applicability to less stringent environments (residential, light industry).
• Immunity coverage: broad frequency range (0 Hz–400 GHz); testing only where requirements exist.
• Test procedures: three principal approaches - Procedure A (type test of entire machine), Procedure B (type test of entire electrical set), Procedure C (tests on electrical/electromechanical modules). Manufacturer chooses procedure based on machine characteristics.
• Test elements: system configuration, ports (power, signal, earth), entire electrical set, modules, actuators, controllers and peripherals.
• Performance assessment: defined performance criteria used before, during and after immunity tests; standardises test conditions and reporting.
• Normative and informative annexes: Annexes A–C normative (type test requirements, entire electrical set, modules); Annexes D–E informative (test plan, flow chart).

Applications

• Use EN 50370-2:2003 for EMC immunity testing, design validation, and conformity assessment of industrial machine tools.
• Integrate into product development to identify immunity requirements early (controller design, power drives, signal interfaces).
• Prepare EMC test plans and test reports for type approval at accredited EMC test laboratories.
• Apply the document when adapting industrial machine tools for less stringent environments (residential, light industry) as a benchmark.

Who uses this standard

• Machine tool manufacturers and design engineers
• EMC compliance engineers and test laboratories
• Certification bodies and conformity assessors
• System integrators and maintenance engineers concerned with electromagnetic immunity

Related standards

EN 50370-2 references basic EMC test methods such as:

• EN/IEC 61000-4-2, -4-3, -4-4, -4-5, -4-6, -4-8, -4-11
• IEC 60050 (IEV) and the EC Guide to the application of Directive 89/336/EEC

Keywords: EN 50370-2:2003, EMC immunity, machine tools, CLC, immunity tests, type test, electrical set, EMC compliance.

Standards Content (Sample)

SLOVENSKI SIST EN 50370-2:2003

STANDARD
december 2003
Electromagnetic compatibility (EMC) - Product family standard for machine tools -
Part 2: Immunity
ICS 5HIHUHQþQDãWHYLOND
25.080.01; 33.100.20
! "#$%!&!%’()*#+’
EUROPEAN STANDARD EN 50370-2
NORME EUROPÉENNE
EUROPÄISCHE NORM January 2003

ICS 25.080.01; 33.100.20
English version
Electromagnetic compatibility (EMC) -
Product family standard for machine tools
Part 2: Immunity
Compatibilité électromagnétique (CEM) - Elektromagnetische Verträglichkeit (EMV) -
Norme de famille de produits Produktfamiliennorm für
pour les machines-outils Werkzeugmaschinen
Partie 2: Immunité Teil 2: Störfestigkeit

This European Standard was approved by CENELEC on 2002-11-01. 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, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 50370-2:2002 E
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 210, Electromagnetic
compatibility (EMC).
The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50370-2 on
2002-11-01.
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) 2003-11-01

– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2005-11-01

This standard is intended for publication in the Official Journal of the European Communities as
harmonized standard for the assessment of conformity with the protection requirements of the
Electromagnetic Compatibility Directive (89/336/EEC).
The purpose of this product family standard is
− to establish uniform requirements for the electromagnetic immunity of the machine tools contained in
the scope,
− to fix test specifications of immunity,
− to refer to basic standards for methods of testing,
− to standardise conditions during the tests, performance criteria and test report format for the
assessment of conformity.
Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, Annexes A, B and C are normative and Annexes D and E are informative.
__________
– 3 – EN 50370-2:2003
Contents
1 Scope.4
2 References.4
2.1 Normative references.4
2.2 Other references.5
3 Terms, definitions and abbreviations .5
3.1 Terms and definitions.5
3.2 Abbreviations.6
4 System configuration.7
4.1 Test approach.7
4.2 Void.8
5 Immunity tests .8
5.1 Classification and testing procedures .8
5.1.1 Machine tool containing no electromagnetically relevant components.8
5.1.2 Machine tool containing electromagnetically relevant components.8
5.2 Test arrangements.9
5.3 Performance assessment and criteria .10
5.4 Conditions during tests.11
5.4.1 Procedures A and B .12
5.4.2 Procedure C .12
5.5 Test plan and test report .12
5.5.1 Test plan.12
5.5.2 Test report.12
5.6 Type test of machine tools with various configurations .13
5.7 Test precautions.14
6 Product documentation.14
Annex A (normative) Type test requirements.15
Annex B (normative) Entire electrical set.17
Annex C (normative) Modules used for machine tools .18
Annex D (informative) Test plan .19
Annex E (informative) Test procedure flow chart.20

1 Scope
This standard deals with the electromagnetic immunity of machine tools designed exclusively for
industrial and similar purposes that use electricity, the rated voltage of the machine tool not exceeding
1 000 V a.c. or 1 500 V d.c. between lines.
Machine tools may incorporate motors, heating elements or their combination, may contain electric or
electronic circuitry, and may be powered by the mains, or any other electrical power source.
This immunity standard may also be used for assessment of equipment used in other environments,
which require less stringent immunity levels (residential, light industry…) than the industrial environment.
This standard is not intended for the EMC conformity assessment of modules to be placed on the market
separately.
This standard is not intended for complying with Machinery Directive 98/37/EC. Hence safety
considerations are not covered by this standard.
This standard does not cover fixed installations as defined in the Guide to the Application of Directive
89/336/EEC, published by the European Commission.
This standard does not apply to apparatus intended to be used in locations where special electromagnetic
conditions prevail, such as the presence of high electromagnetic fields (e.g. in the vicinity of a broadcast
transmitting station) or where high pulses occur on the power network (e.g. in a power generator station).
In these instances special mitigation measures may have to be employed.
Immunity requirements in the frequency range 0 Hz to 400 GHz are covered. No measurements need to
be performed at frequencies where no requirements are specified.
2 References
2.1 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications.
These normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this European Standard only when incorporated in it by amendment or revision. For undated
references the latest edition of the publication referred to applies (including amendments).
EN 61000-4-2 Electromagnetic compatibility (EMC) — Part 4-2: Testing and
measurement techniques – Electrostatic discharge immunity test
(IEC 61000-4-2)
EN 61000-4-3 Electromagnetic compatibility (EMC) — Part 4-3: Testing and
measurement techniques – Radiated, radio-frequency
electromagnetic field immunity test (IEC 61000-4-3)
EN 61000-4-4 Electromagnetic compatibility (EMC) — Part 4-4: Testing and
measurement techniques – Electrical fast transient/burst immunity
test (IEC 61000-4-4)
EN 61000-4-5 Electromagnetic compatibility (EMC) — Part 4-5: Testing and
measurement techniques – Surge immunity test (IEC 61000-4-5)

– 5 – EN 50370-2:2003
1)
EN 61000-4-6  Electromagnetic compatibility (EMC) — Part 4-6: Testing and
measurement techniques – Immunity to conducted disturbances,
induced by radio-frequency fields (IEC 61000-4-6)
EN 61000-4-8 Electromagnetic compatibility (EMC) — Part 4-8: Testing and
measurement techniques – Power frequency magnetic field immunity
test (IEC 61000-4-8)
EN 61000-4-11 Electromagnetic compatibility (EMC) — Part 4-11: Testing and
measurement techniques – Voltage dips, short interruptions and
voltage variations immunity tests (IEC 61000-4-11)
IEC 60050 International Electrotechnical Vocabulary (IEV)

2.2 Other references
ISBN 92-828-0762-2 1997 Electromagnetic Compatibility (EMC) - Guide to the application of
Directive 89/336/EEC
3 Terms, definitions and abbreviations
3.1 Terms and definitions
3.1.1
machine tool (MT)
machine, not portable as a whole during its operation, driven by an external electrical energy source and
intended to work typically metal products in the solid state, with material removal (cutting processes as
turning, milling, grinding, drilling, machining.) or without material removal (forming processes as
bending, forging.)
The machine tool is normally equipped with a power supply, an electrical and electronic assembly for
power and control and one or more power drive systems for the movement of mobile elements or parts
3.1.2
module
unit consisting of mechanical, pneumatic, hydraulic, electrical and/or electronic parts (examples: machine
bed, tool holder, sensor, spindle unit, cabinet including NC-controller and human-machine-interface,
programmable logic controller - PLC, power drive.), intended exclusively for an industrial assembly
operation for incorporation in an apparatus or system. A component can be considered as a module
3.1.3
electromagnetically relevant component/module
an electromagnetically relevant component or module for immunity aspects is defined as one that, due to
its electromagnetic characteristics, is liable to have its performance degraded by electromagnetic
disturbances such that it will influence the EMC characteristics or the intended operation of typical
assemblies into which it may be incorporated
———————
1)
At draft stage.
3.1.4
port
particular boundary of the specified machine tool or module with the electromagnetic environment of the process
(IEV 131-02-21 modified)
NOTE By boundary is meant the physical limits of the complete machine tool or module.
3.1.5
signal interface
input/output (I/O) connection for a line connecting the supervision, control and/or protection module(s) to
other parts or modules of the machine tool
3.1.6
power interface
connections needed for the distribution of electrical power within the machine tool
NOTE A port of a module may be connected to a port of the machine tool, or may form an interface to another module within the
machine tool.
3.1.7
entire electrical set
assembly of all electro-magnetic relevant modules separated from the mechanical structure of the
machine tool allowing the assembly to be tested in a reference test site
3.1.8
type test
test of one or more devices made to a certain design to show that the design meets certain specifications
(IEV 151-04-15)
3.1.9
equipment
generic term, referring to the entire machine tool, the entire electrical set or an electrical/
electromechanical module
3.2 Abbreviations
NOTE  Only the abbreviations used in the English version of this part of EN 50370 are mentioned in this subclause.
The German and French versions of this part may use other abbreviations. Refer to 3.2 of each language version for details.
a.c. alternating current
AM amplitude modulation
CRT cathode ray tube
d.c. direct current
EDM electrical discharge machining
EM electromagnetic
EFT electrical fast transient
EMC electromagnetic compatibility
ESD electrostatic discharge
EUT equipment under test
I/O input/output
LED light emitting diode
MT machine tool
PLC programmable logic controller

– 7 – EN 50370-2:2003
r.m.s. root mean square
T hold time
h
T rise time
r
4 System configuration
A basic configuration may consist of (see Figure 1)
− an electrical feeding section,
− control and protection circuits and equipment,
− one or more basic power conditioning units (example: drive modules) performing control and/or
conversion of electrical energy,
− one or more actuators and their associated transducers,
− control and sequencing systems such as NC-controllers, programmable controllers and their
associated peripherals, programming and debugging tools, test equipment and human-machine
interfaces,
− peripherals (transducer(s), operator station, emergency stop devices, etc.),
− the structure and the moving parts driven by the actuator(s).

CaCabb iinneett EnEncclloo ssuurree Po Porrtt
PoPowweerr
MMechechanan iiccss
InIn tteerrffaaccee
AAxxisis 1 1 M 1M 1
InIn tteerrnn aall P Poorr tt
AAxxisis X X M XM X
CC ontontrr ooll
InIntteerr ffaaccee
PoPoww eerr Po Porrtt
SSee nsnsororss
CoCo nnttroro ll
((EExtxterer nnaall P Poo rrtt))
AcActtuuaattoorrss
SSiigg nnaall C Contontrr ooll
IntInteerr ffaaccee
EaEarrtthh P Poorrtt SSiigngn aall / /CCononttrroo ll PPoorrtt SSiiggnn aall /C /Contontrroo l Pl Poorrtt
((EExtxterer nnaall P Poo rrtt))
((EExtxt erer nn aa ll P Poo rr tt))

Figure 1 – System configuration and example of ports

4.1 Test approach
Type testing of a finished product is the normal method for conformity assessment, but complete testing
of an entire machine tool at a conventional EMC test site is only technically possible and economically
feasible for a limited number of machines. A distinction shall be drawn between type-testable machines
and machines which, because of the weight, dimensions, operation or unreasonable testing costs and
testing delay, cannot be type-tested as a whole at a conventional EMC test site.

Furthermore, it is necessary to take into account single-piece production and the multitude of types as
well as expansions and modifications.
Distinctions shall be drawn between the following cases and shall be taken into account:
− type-testable machines;
− machines which are not type-testable;
− multitude of types;
− modifications, additions and expansions.
Each assessment of conformity could be based on one or a combination of various tests:
− type test at the EMC test site;
− visual inspection of entire machine tools;
− additional tests on entire machine tools at manufacturers premises.
4.2 Void
5 Immunity tests
5.1 Classification and testing procedures
The immunity testing procedures are described in the following paragraphs. A flow chart providing an
overview of the test procedures is included in the informative Annex E.
5.1.1 Machine tool containing no electromagnetically relevant components
If the machine tool contains no electromagnetically relevant components, no tests have to be carried out.
EXAMPLES Machine tools containing only components such as electric motors, electromechanical
switches, thermostats, (rechargeable) batteries etc.
5.1.2 Machine tool containing electromagnetically relevant components
If the machine tool contains electromagnetically relevant components such as electronic control and
power parts (sub-assemblies, sub-systems, etc.), one of the procedures laid down in Table 1 shall be
carried out. The test procedure is chosen by the manufacturer based on the characteristics of the
machine tool.
Table 1 – Test procedures
Test Procedure Procedure A Procedure B Procedure C
(Applicable for the entire MT) (Applicable for the entire (Applicable for electrical or
electrical set) electromechanical modules)
Type test Required Required Required
Visual inspection of entire MT Not required Optional (see note) Required
Additional tests on entire MT Not required Optional (see note) Required
at manufacturers premises
NOTE Visual inspection or additional tests as decided by the manufacturer.

– 9 – EN 50370-2:2003
5.1.2.1 Test procedure A
The machine tool shall be tested according to the immunity requirements laid down in this standard (see
5.2 to 5.6 and Annex A).
For tests, the machine tool shall operate as specified by the manufacturer.
The performance criteria (Table 2) shall be used to check the performance of a machine tool before,
during and after each immunity test.
5.1.2.2 Test procedure B
The entire electrical set of the machine tool shall be tested according to the specific immunity
requirements laid down in this standard (see 5.2 to 5.6 and Annexes A and B) while simulating specific
functions to be specified by the manufacturer.
The performance criteria (Table 2) shall be used to check the performance of a machine tool before,
during and after each immunity test.
5.1.2.3 Test procedure C
The machine tool shall be divided into modules by the manufacturer in any appropriate fashion to enable
the procedure C to be carried out.
After having divided a machine tool into modules, the manufacturer shall classify each module as
electromagnetically relevant or irrelevant concerning the immunity of the machine tool.
Electromagnetically irrelevant modules need not be tested.
Electromagnetically relevant modules shall be subjected to the following steps:
1) determine which ports of the machine tool are electrically connected to which port or interfaces of the
module (see Annex C, Table C.1);
2) the tests shall be applied to all ports of the module which will be used as external ports in the
complete machine tool;
3) the enclosure ports of all modules are considered to be connected to the enclosure port of the
machine tool;
4) the module shall be tested according to the immunity requirements laid down in this standard (see 5.2
to 5.6 and Annexes A and C) or according to a harmonised European generic, product family or
product immunity standard for the industrial environment.
NOTE The machine tool builder does not need to repeat tests on an EMC compliant module as declared by its manufacturer.
5.2 Test arrangements
Tests shall be applied to the relevant ports of the machine tool or the modules as specified in 5.1.2.1 to
5.1.2.3 and the respective annexes.
However, if several process measurement and control ports or signal interfaces have the same physical
configuration (layout) it is sufficient to test one port or interface of that type.
The tests shall be carried out as single tests in sequence. The sequence of testing is optional.
These tests shall be performed normally in the test conditions as specified in the basic immunity
standards
...