Compact Field Unit in the housing for use in a hazardous area
11.2 Grounding for configuration with SIMATIC CFU with aluminum housing
Compact Field Unit (CFU) in the automation environment
The following figure demonstrates basic integration of a CFU PA with an housing in the
automation environment.
Figure 11-1
11.2
Grounding for configuration with SIMATIC CFU with aluminum
housing
Equipotential bonding
You must set up an equipotential bonding in hazardous areas acc. to IEC 60079-14.
● By mounting the CFU on the top hat rail, a conductive connection to the aluminum housing
is made via the clamp attachment.
● CFU PA: The shields of the fieldbus cables must be connected to the shield terminals.
130
Basic integration of a CFU in the automation environment with field devices in a hazardous
area (CFU PA is given as an example)
Commissioning Manual, 08/2019, A5E39252870-AD
SIMATIC CFU