DC link components
7.2 Braking Module Booksize
SINAMICS S120 Combi
Manual, 11/2017, 6SL3097-4AV00-0BP7
167
Fire through overheating due to insufficient ventilation clearances
Inadequate ventilation clearances can cause overheating with a risk for personnel through
smoke development and fire. This can also result in more downtimes and Line Modules
may have a reduced service life.
• It is absolutely essential that you maintain ventilation clearances according to the table
Ventilation clearances above and below the component (Page 294).
Electric shock due to missing DC-link side covers
There is a danger of an electric shock through contact when the side covers of the DC link
are missing.
• Mount the supplied side covers on the first and last component in the drive line-up.
You can order missing side covers (article number: 6SL3162-5AA00-0AA0).
Material damage due to loose power connections
Insufficient tightening torques or vibrations can result in faulty electrical connections. This
can cause fire damage or malfunctions.
• Tighten all the DC-link busbar screws with the specified tightening torques (1.8 Nm
tolerance +30 %).
• Check the tightening torques of all power connections at regular intervals and tighten
them when required. This applies in particular after transport.
Note
If braking resistors other than those described in Section
Braking resistors (Page 176)
-1AA00-0DA0 and 6SL3100-01BE31-0AA) are used then these could be
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