Siemens SINUMERIK 840D sl Function Manual page 24

Regulations and standards
2.2 Machine safety in Europe
2.2.7 EN 60204-1
European standard EN 60204-1 is based on the modified ISO edition of IEC 60204-1. It
includes general requirements and recommendations for the electrical, electronic and
programmable electronic equipment of machines with rated voltages up to and including 1000
V AC/ 1500 V DC at rated frequencies up to and including 200 Hz, in order to:
- promote the safety of persons and assets
- maintain the functionality
- help simplify maintenance.
The equipment, which is covered by EN 60204-1, starts at the point of connection to the line
supply of the electrical equipment of the machine and ends at the motor shaft.
2.2.8 EN 61800-5-2
The European product standard EN 61800-5-2 has taken over the international standard IEC
61800-5-2 without any changes.
It defines requirements and gives recommendations for designing and developing, integrating
and validating safety-relevant power drive systems with adjustable speed (PDS(SR)) regarding
their functional safety.
This standard is only applicable if the functional safety of a PDS(SR) is used and the PDS(SR)
is operated in a mode with a high number or continuous demand (demand mode). The EN
61508 series of standards should be used for operating modes with a low demand (low demand
mode).
This part of EN 61800 discusses the safety-related evaluation of a PDS(SR) within the
framework of the EN 61508 series of standards and introduces requirements placed on a
PDS(SR) as subsystems of a safety-relevant system. This therefore permits the
implementation of the electrical/electronic/programmable electronic (E/E/PE) elements of a
PDS(SR) taking into account the safety-relevant performance of the safety function(s) of a
PDS.
Manufacturers and suppliers of PDS(SR) can prove to users (i.e. integrators of control systems,
developers of machines and plants etc.) the safety-relevant performance of their equipment
by implementing the specifications laid down in EN 61800-5-2. When this part of EN 61800 is
complied with, all of the requirements of the EN 61508 series of standards, which are specified
for a PDS(SR), are fulfilled.
This part of EN 61800 is only valid for PDS(SR), which implement safety functions up to SIL
3.
The following basic requirements of the EC machinery directive are covered in EN 61800-5-2:
● Safety and reliability of controls
● Faults in control circuits.
24
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Safety Integrated