Horizontal Installation - Siemens SINAMICS S120 Equipment Manual

Cabinet Design and EMC

7.6 Horizontal installation

7.6 Horizontal installation
SINAMICS S120 Liquid Cooled units can operate in a vertical position with the unit resting
on its rear panel.
To prevent heat concentrations inside the units in this mounting position, an external fan
needs to be installed which is capable of removing heated air from the devices.
A baffle (referred to below as air distribution baffle) must also be mounted above the unit.
This ensures that the air is sucked through the IP20 covers in an even distribution over the
entire length of the device, thereby ensuring that even components at the bottom (in Fig. 7-8
on left) of the module remain within the permissible tolerance range.
The components required for a horizontal mounting position can be seen in Fig. 7-8.
Fig. 7-8 Basic layout for horizontal mounting position.
The height h, the distance between the module top edge (horizontal) and the air distribution
baffle A must be in the range 25 mm < h < 60 mm!
7-14
SINAMICS S120 Equipment Manual, Edition 12/2007, 6SL3097-2AM00-0BP4
Chassis Power Units Liquid Cooled