Ventilation - Siemens SINAMICS S120 Manual

Cabinet Design and EMC for Components, Blocksize Format
9.7 Information on cabinet cooling
9.7.2

Ventilation

The SINAMICS equipment is ventilated separately by means of integrated fans and is in
some cases cooled by means of natural convection.
The cooling air must flow through the components vertically from bottom (cooler region) to
top (region heated by operation).
If filtered fans, heat exchangers, or air conditioners are used, you must ensure that the air is
flowing in the right direction. You must also ensure that the warm air can escape at the top.
A cooling clearance of at least 80 mm above and below must be observed.
Note
Cables must not be routed on the components; the ventilation meshes must not be covered.
Cold air must not be allowed to blow directly onto electronic equipment.
Note
The distance between the blow-out aperture of the air conditioner and the electronic
equipment must be at least 200 mm.
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Manual, (GH6), 07/2007 Edition, 6SL3097-2AL00-0BP2
AC Drive