Siemens SINAMICS DCM Manual page 19

Information
1.1 Warning information
DANGER
When this unit is operated, it is inevitable that certain components will be subject to
dangerous electrical voltage levels. Touching these components may lead to serious
physical injury or even death. The following precautions should be taken in order to reduce
the risk to life and limb:
1. Only qualified personnel who are familiar with this unit and the information supplied with
it should be charged with work on the unit involving installation, operation,
troubleshooting and fault correction, or repair.
2. The unit must be installed in accordance with safety regulations (e.g. EN, DIN, or VDE)
as well as all other applicable national or local regulations. Grounding, conductor
dimensioning, and the relevant short-circuit protection work must be carried out correctly
in order to ensure operational safety.
3. The unit must be operated with all covers supplied.
The fixing screws for the front cover of the SINAMICS DCM must be tight.
When required, additional covers should be provided in the control cabinet.
4. Before carrying out visual inspections and maintenance work, ensure that the unit is
disconnected from the supply voltage and disabled. Before they are shut down, both the
converter unit and the motor are subject to dangerous voltage levels; these may be
present even when the converter unit's line contactor is open.
5. If measurements need to be taken while the power supply is switched on, do not under
any circumstances touch the electrical connection points. Remove all jewelry from wrists
and fingers. Make sure that the measuring and test equipment is in good condition and
is safe to operate.
6. When working on a unit that is switched on and on an insulated surface, make sure that
no grounding has been put in place.
7. Follow these Operating Instructions faithfully and observe all information concerning
hazards, warnings, or areas where caution is required.
8. This list is not exhaustive and as such cannot outline all the measures required in order
to operate the unit safely. Should you require further information or encounter specific
problems which have not been handled in enough detail for the purposes of the buyer,
please contact your local Siemens office.
NOTICE
Operating the unit in the immediate vicinity (< 1.5 m) of mobile telephones with a
transmitter power of > 1 W may lead to incorrect operation of the unit.
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Operating Instructions, 02.2015, A5E34763375/RS-AA/001
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SINAMICS DCM DC Converter