Beckhoff C6920 User Manual download pdf (Page 14)

Installation Instructions

Installation of the PC in the control cabinet

The C6920/ 25 Industrial PCs are designed for mounting in control

cabinets for machine and plant engineering applications.

The ambient conditions specified for operation must be observed (see

chapter Technical data).

Preparation of the control

cabinet

Four holes for the fixing bolts have to be provided in the control cabinet

according to the dimensions of the PC (see chapter Assembly dimensions).

Circulation of air

Note

When the unit is installed in an enclosure, adequate space for ventilation

and for opening the PC must be provided.

The clearance above and below the housing must be at least 5 cm in

order to ensure adequate ventilation of the PC.

Avoid extreme environmental conditions

Attention

Extreme environmental conditions should be avoided as far as possible.

Protect the PC from dust, moisture and heat.

The ventilation slots of the PC must not be covered.

Earthing measures

Earthing connections dissipate interference from external power supply

cables, signal cables or cables to peripheral equipment.

Establish a low-impedance connection from the earthing point on the PC

housing to the central earthing point on the control cabinet wall, in which

the computer is being installed. The earthing connection is located at the

front side of the housing (see photograph on the left).

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Beckhoff C6920 User Manual Page 14