BECKHOFF CX51x0 - Manual (Page 30)

Mounting and wiring
4.3 Installation on the mounting rail
Snapping onto the mounting rail
The CX51x0 can simply be snapped onto the mounting rail. The bar clips are inserted on the top side and
underside Then simply position the block on the mounting rail and push it slightly until it engages on the
right­hand side. This is indicated by a distinct click. The bars are then engaged again. The engagement of
the individual bars is indicated by a distinct click. The illustration shows the procedure based on the CX9020
as an example. The CX51x0 has 5 latches (CX5120) or 6 latches (CX5130 and CX5140) at the top and
bottom.
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 DIN 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 incor­
rect installation positions. Mounting must provide a clearance of 30 mm both above and be­
low a CX51x0 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 CX51x0 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.
CX51x0 30 Version 1.0