Siemens SINAMICS S120 Manual page 12

Foreword
Residual risks of power drive systems
When carrying out a risk assessment of the machine in accordance with the EU Machinery
Directive, the machine manufacturer 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,
operation, maintenance, and repairs caused by, for example:
2. Exceptional temperatures as well as emissions of light, noise, particles, or gas caused by,
for example:
3. Hazardous shock voltages caused by, for example:
4. Electrical, magnetic, and electromagnetic fields that can pose a risk to people with a
pacemaker and/or implants if they are too close.
5. Emission of pollutants if components or packaging are not disposed of properly.
An assessment of the residual risks of PDS components (see points 1 to 5 above)
established that these risks do not exceed the specified limit values.
For more information about residual risks of the power drive system components, see the
relevant chapters in the technical user documentation.
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– 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 not within the scope of the specification
– Parameterization, programming, cabling, and installation errors
– Use of radio devices / cellular phones in the immediate vicinity of the controller
– External influences / damage
– Component malfunctions
– Software errors
– Operating and/or ambient conditions not within the scope of the specification
– External influences / damage
– Component malfunctions
– Influence of electrostatic charging
– Induction of voltages in moving motors
– Operating and/or ambient conditions not within the scope of the specification
– Condensation / conductive contamination
– External influences / damage
– Improper protective conductor connection at high leakage currents.
Manual, (GH6), 07/2007 Edition, 6SL3097-2AL00-0BP2
AC Drive