IEC TS 60204-34:2016

IEC TS 60204-34 ®
Edition 1.0 2016-08
TECHNICAL
SPECIFICATION
Safety of machinery – Electrical equipment of machines –
Part 34: Requirements for machine tools
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IEC TS 60204-34 ®
Edition 1.0 2016-08
TECHNICAL
SPECIFICATION
Safety of machinery – Electrical equipment of machines –

Part 34: Requirements for machine tools

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.110; 25.060.99 ISBN 978-2-8322-3570-6

– 2 – IEC TS 60204-34:2016 © IEC 2016
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references. 6
3 Terms and definitions . 7
4 General requirements . 8
5 Incoming supply conductor terminations and devices for disconnecting and
switching off . 9
6 Protection against electric shock . 9
7 Protection of equipment . 9
8 Equipotential bonding . 9
9 Control circuits and control functions . 10
10 Operator interface and machine-mounted control devices . 11
11 Controlgear: location, mounting, and enclosures . 12
12 Conductors and cables . 13
13 Wiring practices . 13
14 Electric motors and associated equipment . 13
15 Socket-outlets and lighting . 13
16 Marking, warning signs and reference designations . 13
17 Technical documentation . 13
18 Verification . 14
Annexes . 16
Annex AA (informative) EMC . 17
Annex BB (informative) Numerical control system of machine tools . 19
Annex CC (informative) (Derived from IEC 60617-DB:2001) Graphical symbols used in
electrical diagrams of machine tools . 26
Annex DD (informative) Reference designations for electrical diagrams of machine
tools (derived from IEC 81346-2:2009) . 43
Annex EE (informative) Examples and short specifications (briefing) of electrical
diagrams . 50
Annex FF (informative) Safety related standards for components or units . 56
Bibliography . 78

Figure EE.1 – Circuit diagram (1) . 52
Figure EE.2 – Circuit diagram (2) . 53
Figure EE.3 – Circuit diagram (3) . 53
Figure EE.4 – Circuit diagram (4) . 54
Figure EE.5 – Circuit diagram (5) . 54
Figure EE.6 – Arrangement diagram of electric elements on switchboard . 55
Figure EE.7 – Arrangement drawing . 55

Table 1 – List of terms and abbreviations . 8
Table 2 – SIL and PL . 11

Table 4 – Colours for indicator lights and their meanings with respect to the condition of
the machine . 12
Table BB.1 – Test overview. 24
Table CC.1 – Graphical symbols for electrical equipment of machines (derived from
IEC 60617-DB) (1 of 13) . 27
Table CC.2 – Graphical symbols for electrical equipment of machines (created symbols
by this part) (1 of 3) . 40
Table DD.1 – Classes of objects according to their intended purpose or task (1 of 6) . 44
Table FF.1 – Standards related to components or units (1 of 22). 56

– 4 – IEC TS 60204-34:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY OF MACHINERY –
ELECTRICAL EQUIPMENT OF MACHINES –

Part 34：Requirements for machine tools

FOREWORD
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when
• the required support cannot be obtained for the publication of an International Standard,
despite repeated efforts, or
• the subject is still under technical development or where, for any other reason, there is the
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Technical specifications are subject to review within three years of publication to decide whether
they can be transformed into International Standards.
IEC TS 60204-34, which is a technical specification, has been prepared by IEC technical
committee 44: Safety of machinery – Electrotechnical aspects.

The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
44/735/DTS 44/748/RVC
Full information on the voting for the approval of this technical specification can be found in the
report on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This part of IEC 60204 is intended to be used in conjunction with IEC 60204-1:— .
This part supplements or modifies the corresponding clauses in IEC 60204-1.
The numbering system is based on IEC 60204-31:2013. Where a particular clause or subclause
of Part 1 is not mentioned in this Part 34, that clause or subclause applies as far as is reasonable.
Where this part states "addition", "modification" or "replacement", the relevant text, notes,
figures, and tables in Part 1 are to be adapted accordingly.
Annexes which are additional to those in part 1 are lettered AA, BB, CC, DD, EE and FF.
A list of
...