Ventilation - Siemens SINAMICS S120 Combi Manual

Figure 12-6
12.8.2

Ventilation

The S120 Combi is equipped with an internal fan to circulate the air inside the unit.
The cooling air must flow vertically through the external heat sink of the S120 Combi.
When using filter fans, heat exchangers, or air conditioners to cool the control cabinet, it
must be ensured that the air is flowing in the correct direction. You must also ensure that the
warm air can escape at the top. A ventilation clearance of at least 80 mm above and below
must be observed.
NOTICE
Damage caused by cooling equipment
Damage to components can be caused by overheating or condensation.
• Route the connected signal and power cables to the components in such a way that
• Select the air guidance and arrangement of the cooling equipment in such a way that
SINAMICS S120 Combi
Manual, 11/2017, 6SL3097-4AV00-0BP7
Cooling clearances for modules mounted on standard rails (e.g. SMC, DMC)
they do not cover the ventilation slots.
cold air does not blow directly onto electronic equipment and as such no condensation
can form on the components. If necessary, cabinet enclosure heating may have to be
installed.
Cabinet design and EMC
12.8 Note on control cabinet cooling
297