Siemens SINAMICS G120 - Residual Risks of Power Drive Systems

Safety notes
1.4 Residual risks of power drive systems
Inverter with CU230P-2 Control Units
20 Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
1.4
Residual risks of power drive systems
The control and drive components of a drive system are approved for industrial and
commercial use in industrial line supplies. Their use in public line supplies 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 instructions on the components and in the
associated technical user documentation.
When assessing the machine's risk in accordance with the respective local regulations
(e.g., EC Machinery Directive), the machine manufacturer must take into account the
following residual risks emanating from the control and drive components of a drive system:
1. Unintentional movements of driven machine components during commissioning,
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 of the 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
2. In the event of a fault, exceptionally high temperatures, including an open fire, as well as
emissions of light, noise, particles, gases, etc. can occur inside and outside the inverter,
e.g.:
– Component malfunctions
– Software errors
– Operating and/or ambient conditions outside of the specification
– External influences / damage
Inverters of the Open Type / IP20 degree of protection must be installed in a metal control
cabinet (or protected by another equivalent measure) such that the contact with fire inside
and outside the inverter is not possible.