BECKHOFF CX50x0 - Manual (Page 30)

Notes on the documentation
28 CX50x0 - Hardware Documentation
Installation on the mounting rail
Snapping onto the mounting rail
The CX50x0 can simply be snapped onto the mounting rail. To this end position the block on the mounting rail and
push it slightly until it engages on the right-hand side. The is indicated by a distinct click. Use a screwdriver to push
up the lock on the left-hand side, thereby turning it and causing it to engage audibly.
Attention
Avoid damage!
Do not force the module or apply excessive pressure!
Installation position
Attention
Comply with the permitted installation position and minimum distances!
The maximum ambient temperature for CPU modules mounted on a top-hat rail is 60 °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 permitted and two
incorrect installation positions.
Mounting must provide a clearance of 30 mm both above and below a CX50x0 device
combination to ensure adequate ventilation of the base CPU module and the power supply
unit.
The high performance and the compact design of the CX50x0 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.