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CSA C22.2 No. 61800-5-2 Adjustable speed electrical power drive systems - Part 5-2: Safety requirements - Functional
standard by CSA Group, 10/27/2021
CSA Preface
This is the first edition of CSA C22.2 No. 61800-5-2, Adjustable speed electrical power drive systems - Part 5-2: Safety requirements - Functional, which is an adoption, with Canadian deviations, of the identically titled IEC (International Electrotechnical Commission) Standard 61800-5-2 (second edition, 2016-04). It is one in a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code. For brevity, this Standard will be referred to as "CSA C22.2 No. 61800-5-2" throughout. Adjustable speed electrical power drive systems will need to comply with the requirements within CSA C22.2 No. 274-17, Adjustable speed drives, prior to using this Standard for conformity assessment. This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.
Scope
This part of IEC 61800, which is a product standard, specifies requirements and makes recommendations for the design and development, integration and validation of safety related power drive systems (PDS(SR)) in terms of their functional safety considerations. It applies to adjustable speed electrical power drive systems covered by the other parts of the IEC 61800 series of standards as referred in IEC 61800-2.
NOTE 1 The term "integration" refers to the PDS(SR) itself, not to its incorporation into the safety-related application.
NOTE 2 Other parts of IEC 61800 cover rating specifications, EMC, electrical safety, etc. This International Standard is applicable where functional safety of a PDS(SR) is claimed and the PDS(SR) is operating mainly in the high demand or continuous mode (see 3.15). While low demand mode operation is possible for a PDS(SR), this standard concentrates on high demand and continuous mode. Safety sub-functions implemented for high demand or continuous mode can also be used in low demand mode. Requirements for low demand mode are given in IEC 61508 series. Some guidance for the estimation of average probability of dangerous failure on demand (PFDavg) value is provided in Annex F. This part of IEC 61800 sets out safety-related considerations of PDS(SR) s in terms of the framework of IEC 61508, and introduces requirements for PDS(SR)s as subsystems of a safety-related system. It is intended to facilitate the realisation of the electrical/ electronic/programmable electronic (E/E/PE) parts of a PDS(SR) in relation to the safety performance of safety sub-function(s) of a PDS. Manufacturers and suppliers of PDS(SR)s by using the normative requirements of this part of IEC 61800 will indicate to users (system integrator, original equipment manufacturer) the safety performance for their equipment. This will facilitate the incorporation of a PDS(SR) into a safety-related control system using the principles of IEC 61508, and possibly its specific sector implementations (for example IEC 61511, IEC 61513, IEC 62061 or ISO 13849). By applying the requirements from this part of the IEC 61800 series, the corresponding requirements of IEC 61508 that are necessary for a PDS(SR) are fulfilled. This part of IEC 61800 does not specify requirements for: the hazard and risk analysis of a particular application; the identification of safety sub-functions for that application; the initial allocation of SILs to those safety sub-functions; the driven equipment except for interface arrangements; secondary hazards (for example from failure in a production or manufacturing process); the electrical, thermal and energy safety considerations, which are covered in +IEC 61800-5-1; the PDS(SR) manufacturing process; the validity of signals and commands to the PDS(SR). security aspects (e.g. cyber security or PDS(SR) security of access)
NOTE 3 The functional safety requirements of a PDS(SR) are dependent on the application, and can be considered as a part of the overall risk assessment of the installation. Where the supplier of the PDS(SR) is not responsible for the driven equipment, the installation designer is responsible for the risk assessment, and for specifying the functional and safety integrity requirements of the PDS (SR). This part of IEC 61800 only applies to PDS(SR)s implementing safety sub-functions with a SIL not greater than SIL 3. Figure 1 shows the installation and the functional parts of a PDS(SR) that are considered in this part of IEC 61800 and shows a logical representation of a PDS(SR) rather than its physical description.
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CSA C22.2 No. 61800-5-2:21
(IEC 61800-5-2:2016, MOD)
National Standard of Canada Norme nationale du Canada
(IEC 61800-5-2:2016, MOD)
(IEC 61800-5-2:2016, MOD)
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CSA C22.2 No. 61800-5-2:21
October 2021
Title: Adjustable speed electrical power drive systems — Part 5-2: Safety requirements — Functional
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CSA C22.2 nº 61800-5-2:21
Octobre 2021
Titre : Entraînements électriques de puissance à vitesse variable — Partie 5-2 : Exigences de sécurité — Fonctionnelle
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CSA C22.2 No. 61800-5-2:21
(IEC 61800-5-2:2016, MOD)
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CSA C22.2 No. 61800-5-2:21
Adjustable speed electrical power drive systems — Part 5-2: Safety
requirements — Functional
CSA C22.2 No. 61800-5-2:21
(IEC 61800-5-2:2016, MOD)
This is the first edition of CSA C22.2 No. 61800-5-2, Adjustable speed electrical power drive
systems — Part 5-2: Safety requirements — Functional, which is an adoption, with Canadian deviations, of the identically titled IEC (International Electrotechnical Commission) Standard 61800-5-2 (second edition, 2016-04). It is one in a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code.
For brevity, this Standard will be referred to as “CSA C22.2 No. 61800-5-2” throughout.
Adjustable speed electrical power drive systems will need to comply with the requirements within
CSA C22.2 No. 274-17, Adjustable speed drives, prior to using this Standard for conformity assessment.
This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.
This Standard was reviewed for Canadian adoption by the CSA Integrated Committee on Adjustable Speed Drives, under the jurisdiction of the CSA Technical Committee on Industrial Products and the CSA Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the Technical Committee.
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October 2021 © 2021 Canadian Standards Association CSA/8
CSA C22.2 No. 61800-5-2:21
Adjustable speed electrical power drive systems — Part 5-2: Safety
requirements — Functional
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October 2021 © 2021 Canadian Standards Association CSA/9
CSA C22.2 No. 61800-5-2:21
Adjustable speed electrical power drive systems — Part 5-2: Safety
requirements — Functional
The following deviations are intended to meet Canadian power drive systems (PDS) requirements and to align with the Canadian Electrical Code, Part I.
[Add the following clauses]
1.1A
This standard is only applicable to the following:
power conversion, drive control equipment, and interface circuits;
servo drives and integral servo drive/motor combinations; and
integrated PDS where the motor and adjustable speed drives are mechanically integrated into a single unit.
1.2A
This Standard applies only to devices connected to line voltages up to 34.5 kV, 50 Hz, or 60 Hz.
1.3A
The PDS(SR) covered by this Standard are for use in ordinary locations in accordance with the Canadian Electrical Code, Part I.
1.4A
Requirements with respect to electrical, thermal, and energy safety considerations are covered in CSA C22.2 No. 274.
1.5A
This Standard does not apply to
traction and electric vehicle drives;
motors as covered by CSA C22.2 No. 100;
cord connected drives;
the motor portion of a motor and ASD system that is mechanically integrated into a single unit; and
solid state, single phase motor speed controls rated 300 V and less, 20 A and less that are covered by CSA C22.2 No. 156.
[Add the following]
In this Standard, any reference to International Standards shall be replaced by the relevant National Standard of Canada.
Where reference is made to CSA Group publications, such reference shall be considered to refer to the latest edition and all amendments published to that edition. This Standard refers to the following publications, and the years shown indicate the latest editions available at the time of printing:
October 2021 © 2021 Canadian Standards Association CSA/10