Siemens SINAMICS S120 Manual page 12

Preface
Residual risks of power drive systems
The control and drive components of a power drive system (PDS) are approved for industrial
and commercial use in industrial line supplies. Their use in public electrical networks
requires a different configuration and/or additional measures.
These components may only be operated in closed housings or in higher-level control
cabinets with protective covers that are closed, and when all of the protective devices are
used.
These components may only be handled by qualified and trained technical personnel who
are knowledgeable and observe all of the safety information and instructions on the
components and in the associated technical user documentation.
When carrying out a risk assessment of the machine/plant according to the EU Machinery
Directive, the machine manufacturer / plant operator must consider the following residual
risks associated with the control and drive components of a power drive system (PDS).
1. Unintentional movements of driven machine components during commissioning,
2. In the event of a fault, exceptionally high temperatures, including open fire, as well as
3. Hazardous shock voltages caused by, for example:
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operation, maintenance and repairs caused by, for example:
– Hardware defects and/or software errors in the sensors, controllers, actuators, and
connection technology
– Response times of the controller and drive
– Operating and/or ambient conditions outside specification
– Condensation / conductive contamination
– Parameterization, programming, cabling, and installation errors
– Use of radio devices / cellular phones in the immediate vicinity of the controller
– External influences / damage
emissions of light, noise, particles, gases, etc. can occur inside and outside the converter,
for example:
– Component malfunctions
– Software errors
– Operating and/or ambient conditions outside specification
– External influences / damage
Converters of the Open Type/IP20 degree of protection must be installed in a control
cabinet (or protected by another equivalent measure) in such a way that contact with
fire inside and outside the converter is prevented.
– Component malfunctions
– Influence of electrostatic charging
– Induction of voltages in moving motors
– Operating and/or ambient conditions outside specification
– Condensation / conductive contamination
– External influences / damage
Manual, (GH3), 01/2013, 6SL3097-4AE00-0BP3
Chassis power units