IEC 60204-34:2016 pdf Safety of machinery – Electrical equipment of machines – Part 34: Requirements for machine tools
1 Scope
This clause of IEC 60204-1 is applicable except as follows:
Replacement:
This part of IEC 60204 applies to electrical, electronic and programmable electronic equipment
and systems of machine tools not portable by hand while working, including a group of machines
working together in a co-ordinated manner.
In this part of IEC 60204, machine tools means all machines for the working of metal, wood,
plastics and stone, operating by forming or removal of material. The following list includes
examples of machine tools but not limited to:
– Turning machines (i.e. manually controlled turning machines without numerical control,
manually controlled turning machines with limited numerically controlled capability,
numerically controlled turning machines and turning centres, single– or multi-spindle
automatic turning machines);
– Milling machines(including boring machines);
– Machining centres;
– Planing machines;
– Drilling machines;
– Grinding machines;
– Laser processing machines;
– Electro Discharge Machines(EDM) (except their power circuit for discharge);
– Sawing machines for cold metal;
– Guillotine shears;
– Hydraulic press brakes;
– Mechanical (or hydraulic, pneumatic) presses.
Power circuits where electrical energy is directly used as a working tool are excluded from this
part of IEC 60204.
In addition to this document, the applicable C-standard for the machines listed in the examples
can be referred for more information.
2 Normative references
This clause of IEC 60204-1 is applicable except as follows:
Additional references:
IEC 60204-1 :—, Safety of machinery – Electrical equipment of machines – Part 1: General
requirements
IEC 60825-1 , Safety of laser products – Part 1: Equipment classification and requirements
IEC 60825-4, Safety of laser products – Part 4: Laser guards
ISO 1 41 1 9, Safety of machinery – Interlocking devices associated with guards – Principles for
design and selection
3 Terms and definitions
This clause of IEC 60204-1 is applicable except as follows:
Additional definitions:
3.1 01 machine tool
MT
machine, not portable as a whole during its operation, driven by an external electrical energy
source and intended to work material in the solid state, with material removal (cutting processes
as turning, milling, grinding, drilling, machining…) or without material removal (forming
processes such as bending, forging, etc.)
Note 1 to entry: 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 elements or parts.
[SOURCE: EN 50370-1 :2005, 3.1 , modified — “typically metal products” has been changed to
“work material”. The last sentence has been changed to NOTE 1 to entry.]
3.1 02 numerical control
NC
automatic control of process performed by a device that makes use of numerical data introduced
while the operation is in progress
[SOURCE: ISO 2806:1 994, 2.1 .1 ]
3.1 03 computerized numerical control
CNC
realization of NC(3.1 02) using a computer to control the machine functions
[SOURCE: ISO 2806:1 994, 2.1 .2]
3.1 04 safety integrity level
SIL
discrete level (one out of a possible three), corresponding to a range of safety integrity values,
where safety integrity level 3 has the highest level of safety integrity and safety integrity level 1
has the lowest
[SOURCE: IEC 61 508-4:201 0, 3.5.6, modified — The words “one out of a possible four” have
been replaced by ” one out of a possible three” and the words “safety integrity level 4” have been
replaced by “safety integrity level 3”.]
3.1 05 type test
test made on one or more equipment representative of the production in order to confirm that
the design fulfils certain specifications
[SOURCE: IEC 60050-1 51 :2001 , 1 51 -1 6-1 6, modified — The word “conformity” has been
removed before “test made…”, the word “items” has been replaced by “equipment” and the text
from “in order to” has been added.]
3.1 06 performance level
PL
discrete level used to specify the ability of safety-related parts of control systems to perform a
safety function under foreseeable conditions
[SOURCE: ISO 1 3849-1 :201 5, 3.1 .23]
IEC 60204-34:2016 pdf Safety of machinery – Electrical equipment of machines – Part 34: Requirements for machine tools
