Connecting - Siemens SINAMICS DCM Operating Instructions Manual

Connecting

Note
Information on connecting the unit
The inside front cover of the SINAMICS DC MASTER Operating Instructions contains a
summary of the key information required for connecting the unit.
The units are operated with high voltages.
All connection work must be carried out while the cabinet is de-energized.
Only qualified personnel who are familiar with all the safety instructions in these Operating
Instructions, as well as the assembly, installation, operating, and maintenance instructions,
should carry out work on these units.
Failure to observe this warning information can result in death, serious physical injury, or
extensive material damage.
Connecting the unit incorrectly can lead to it being damaged or destroyed.
The units may be connected to a line supply with residual current operated circuit breaker if
a universal current sensitive device is being used, which in the case of a ground fault, can
also detect a DC component in the fault current. We recommend a residual current
operated circuit breaker with an operating current ≥300 mA, which means that it is not
suitable to protect personnel. If you have additional questions, please contact Technical
Support.
The power and control terminals may be live even when the motor is not running.
The TSE capacitors may continue to carry dangerous voltage levels following
disconnection. For this reason, the unit should not be opened until an appropriate period of
time has elapsed.
When handling the unit while it is open, remember that live parts are exposed. The unit
must only be operated with the front covers provided by the factory fitted. When required,
additional covers should be provided in the control cabinet (for example, in the area around
the busbars).
SINAMICS DCM DC Converter
Operating Instructions, 1.2012, C98130-A7066-A1-05-7619
WARNING
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