Siemens SINAMICS DCM Manual page 92

Connecting
Note
Information on connecting the device
The inside front cover of the SINAMICS DC MASTER Operating Instructions contains a
summary of the key information required for connecting the device.
WARNING
The devices 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 devices.
Death, serious injury, or substantial material damage can result if these warnings are not
taken into account.
Connecting the device incorrectly can lead to it being damaged or destroyed.
The devices 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 device should not be opened until a reasonable period
of time has elapsed.
When handling the device while it is open, remember that live parts are exposed. The
device 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).
Explicit note on the connection of the PROFIBUS cable to connector X126:
The PROFIBUS cable must only be connected or disconnected in a de-energized state.
Otherwise, there is a danger of coming into contact with live components behind the
terminal.
SINAMICS DCM DC Converter
Operating Instructions, 02.2015, A5E34763375/RS-AA/001
ac.maher.co.ir
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