Cabinet design and EMC
13.9 Note on control cabinet cooling
SINAMICS S120 Combi
Manual, Edition 07/2012, 6SL3097-4AV00-0BP3
259
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Figure 13-5 Cooling clearances for modules mounted on standard rails (e.g. SMC, DMC)
13.9.2 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
The connected signal and power cables must be routed to the components in such a way
that they do not cover the ventilation slots.
Cold air must not be allowed to blow directly onto electronic equipment.
Note
The distance between the discharge opening of the air conditioner and the electronic
equipment must be at least 200 mm.
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