Commissioning
C6032
31
Version: 2.0
4.3.1
Grounding of the Industrial PC
Potential differences are minimized and electrical currents are diverted to the ground through grounding or
potential equalization of electronic devices. This is to prevent dangerous touch voltages and electromagnetic
interference.
The protective conductor connection PE is located on the housing of the Industrial PC (see also Chapter 3.1
), which ensures both the protective earthing of the PC and the functional earthing. Therefore,
use cables with a cross-section of at least 4 mm
2
for the connection of the protective conductor.
Protective earth
By connecting the PE protective conductor connection to the central grounding point of the control cabinet
panel in which the PC is installed, you establish low-resistance protective earthing of the Industrial PC and
thus avoid dangerous touch voltages.
EMC
NOTE
Hardware damage due to electromagnetic interference
Using the Industrial PC without functional earthing can lead to hardware damage due to electromagnetic in-
terference.
• Only use the device with functional earthing.
Electromagnetic compatibility (EMC) refers to the Industrial PC's ability not to interfere with other devices
and equipment through electromagnetic interference, and not to be disturbed by electrical or electromagnetic
effects.
For this purpose, the Industrial PC must comply with certain protection requirements. The Industrial PC has
EMC interference immunity according to EN 61000-6-2. The EMC interference emission of the device meets
the requirements of EN 61000-6-4.
The EMC of the device is improved by functional earthing. You also establish the functional earthing by
connecting the PE protective conductor connection to the central grounding point of the control cabinet panel
in which the PC is installed.
