Terminology Derived from Standards

The technical terms, terminology, symbols and the corresponding descriptions in this manual, or that appear in or on the products themselves, are generally derived from the terms or definitions of international standards.

In the area of functional safety systems, drives and general automation, this may include, but is not limited to, terms such as safety, safety function, safe state, fault, fault reset, malfunction, failure, error, error message, dangerous, and so on.

The standards included are:



IEC 61131-2:2007

Programmable controllers, part 2: Equipment requirements and tests.

ISO 13849-1:2015

Safety of machinery: Safety related parts of control systems.

General principles for design.

EN 61496-1:2013

Safety of machinery: Electro-sensitive protective equipment.

Part 1: General requirements and tests.

ISO 12100:2010

Safety of machinery - General principles for design - Risk assessment and risk reduction

EN 60204-1:2006

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

ISO 14119:2013

Safety of machinery - Interlocking devices associated with guards - Principles for design and selection

ISO 13850:2015

Safety of machinery - Emergency stop - Principles for design

IEC 62061:2015

Safety of machinery - Functional safety of safety-related electrical, electronic, and electronic programmable control systems

IEC 61508-1:2010

Functional safety of electrical/electronic/programmable electronic safetyrelated systems: General requirements.

IEC 61508-2:2010

Functional safety of electrical/electronic/programmable electronic safetyrelated systems: Requirements for electrical/electronic/programmable electronic safety-related systems.

IEC 61508-3:2010

Functional safety of electrical/electronic/programmable electronic safetyrelated systems: Software requirements.

IEC 61784-3:2016

Industrial communication networks - Profiles - Part 3: Functional safety fieldbuses - General rules and profile definitions.


Machinery Directive


Electromagnetic Compatibility Directive


Low Voltage Directive

In addition, terms used in the present document may tangentially be used as they are derived from other standards such as:



IEC 60034 series

Rotating electrical machines

IEC 61800 series

Adjustable speed electrical power drive systems

IEC 61158 series

Digital data communications for measurement and control – Fieldbus for use in industrial control systems

Finally, the term zone of operation may be used in conjunction with the description of specific hazards, and is defined as it is for a hazard zone or danger zone in the Machinery Directive (2006/42/EC) and ISO 12100:2010.

NOTE: The aforementioned standards may or may not apply to the specific products cited in the present documentation. For more information concerning the individual standards applicable to the products described herein, see the characteristics tables for those product references.
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