Assembly and connecting
CX9000 / CX9010 33Version: 2.6
4.1.2 Mechanical assembly of the basic module
The installation of the modules takes place in three steps:
1. The sequence of the modules
The basic CPU module with system interfaces, which are factory-installed on the left side, is extended with
the power supply unit on the right and with the fieldbus connection (master or slave) left side if available.
2. Engaging on the top-hat rail
On the bottom of the modules, there is a white tension strap, which is connected with a latching mechanism.
These tension straps must be pulled down before attaching to the top-hat rail. This can be done using an
ordinary screwdriver and a slight turn.
Then fix the CX9000 block on the top hat-rail using the latching straps. You should hear a soft click.
Only apply pressure at insensitive points of the housing (edges). Never apply pressure on the display, the
buttons or movable parts of the CX-system.
After successful latching on the top-hat rail the straps should be pushed back to their original position.
Note:
A locking mechanism prevents the individual housings from being pulled off again. Detailed information
relating to disassembly of the CX-System configuration from the top-hat rail can be found on page "Removal
and disposal [}42]".
Installation position:
Attention
Mounting the device
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 installation
position. Observe minimum clearance!Mounting must provide a clearance of 30 mm both
above and below a CX90xx device combination to ensure adequate ventilation of the base
CPU module and the power supply unit.
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