BECKHOFF CX9020 - Manual (Page 18)

Mounting and wiring
Correct installation position
The high performance and the compact design of the CX9020 systems may result in increased heat
generation. The heat is dissipated via a passive ventilation system. This system requires the unit to be
mounted correctly. Ventilation openings are located at the top and bottom of the housing. The system
therefore has to be installed horizontally. This ensures optimum air flow.
Incorrect installation positions
The CX9020 system must not be operated vertically on the top­hat rail. A vertical position would lead to
insufficient CPU ventilation, since the ventilation openings are located on the top and bottom of the housing.
Installation of the system on its side would also lead to inadequate ventilation.
invalid installation position invalid installation position
CX9020 18 Version 1.1