BECKHOFF CX1020 - Manual (Page 72)

Assembly and connecting
70 Embedded PC
Installation positions with active cooling (fan):
Warning
The maximum ambient temperature for CPU modules mounted on a top-hat rail is 55°C. The
orientation in which the device is fitted must be selected in such a way that cooling air can flow
vertically through the ventilation holes. The images show the correct and two incorrect installation
positions.
Observe minimum clearance!
Mounting must provide a clearance of 30 mm both above and below a CX1020/CX1030 device
combination to ensure adequate ventilation of the base CPU module and the power supply unit.
Correct installation position:
The high-performance CX1020/CX1030 system generates a significant amount of heat, which 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 CX1020/CX1030 system must not be operated vertically on the top-hat 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.