This part of IEC 61800 specifies requirements and makes recommendations for the design
and development, integration and validation of PDS(SR)s in terms of their functional safety
considerations. It applies to adjustable speed electric drive systems covered by the other
parts of the IEC 61800 series of standards.
This International Standard is only applicable where functional safety of a PDS(SR) is claimed
and the PDS(SR) is operating in the high demand or continuous mode (see 3.10). For low
demand applications, see IEC 61508.
This part of IEC 61800, which is a product standard, 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) elements of a PDS(SR) in
relation to the safety performance of safety 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 (control system integrators, machinery and plant designers,
etc.) 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.
Conformity with this part of IEC 61800 fulfils all the requirements of IEC 61508 that are
necessary for a PDS(SR).
This part of IEC 61800 does not specify requirements for:
• the hazard and risk analysis of a particular application;
• the identification of safety functions for that application;
• the initial allocation of SILs to those safety 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).
This part of IEC 61800 only applies to PDS(SR)s implementing safety functions with a SIL not
greater than SIL 3.
BS EN 61800-5-2:2007 Referenced Document
IEC 60204-1 Safety of machinery - Electrical equipment of machines - Part 1: General requirements*， 2024-04-18 Update
IEC 61508 Functional safety of electrical/electronic/programmable electronic safety-related systems – ALL PARTS together with a Commented version (see Functional Saf*， 2010-04-30 Update
IEC 61508-5 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 5: Examples of methods for the determination of safety integrity levels*， 2010-04-01 Update
IEC 61800-1 Adjustable speed electrical power drive systems - Part 1: General requirements - Rating specifications for low voltage adjustable speed DC power drive systems*， 2021-01-01 Update
IEC 61800-2 Adjustable speed electrical power drive systems - Part 2: General requirements - Rating specifications for adjustable speed AC power drive systems*， 2021-03-01 Update
IEC 61800-3 Adjustable speed electrical power drive systems - Part 3: EMC requirements and specific test methods for PDS and machine tools*， 2022-11-30 Update
IEC 61800-4 Adjustable speed electrical power drive systems - Part 4: General requirements; Rating specifications for a.c. power drive systems above 1000 V a.c., and not exceeding 35 kV
IEC 62280 Railway applications - Communication, signalling and processing systems - Safety related communication in transmission systems*， 2014-02-01 Update
BS EN 61800-5-2:2007 history
2017BS EN 61800-5-2:2017 Adjustable speed electrical power drive systems. Safety requirements. Functional
2007BS EN 61800-5-2:2007 Adjustable speed electrical power drive systems. Safety requirements. Functional