DC link components
7.1 Control Supply Module CSM
SINAMICS S120 Combi
Manual, 11/2017, 6SL3097-4AV00-0BP7
153
Fire through overheating due to insufficient ventilation clearances
Inadequate ventilation clearances can cause overheating with a risk for personnel due to
smoke and fire. This can also result in increased failure rates and a shorter service life for
Line Modules.
• It is absolutely essential that you maintain ventilation clearances according to the table
Ventilation clearances above and below the component (Page 294).
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.
Material damage due to loose power connections when using the 24 V terminal adapter
Insufficient tightening torques or vibrations can result in faulty electrical connections. This
can cause fire damage or malfunctions.
• When using the 24 V terminal adapter, it must be screwed onto the Control Supply
Module Tighten the enclosed EJOT-PT screw K30 x 16 with the specified tightening
torque (0.5 Nm).
• Check the tightening torques of all power connections at regular intervals and tighten
them when required. This applies in particular after transport.
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