Connecting
6.3 Equipotential bonding
SIMATIC IPC647C
Operating Instructions, 12/2010, A5E02669337-02
37
6.3 Equipotential bonding
A low-impedance ground connection improves the discharge of interference generated by
external power cables, signal cables or cables for I/O modules to ground.
Equipotential bonding terminal
The equipotential bonding terminal ① on
the device (large surface, large-area
contact) must be connected with the
central grounding busbar of the cabinet or
plant in which the PC is to be installed. The
minimum conductor cross-section may not
be less than 5 mm
2
.
1
6.4 Connecting the strain relief for network cables
The strain relief provided in the scope of delivery is used to prevent accidental loosening of
the network cable from the device. One cable tie (not included in the package) is required for
each interface.
To fix the strain relief, you will need a TORX T10 screwdriver.
To fix the PROFINET strain relief, you will need a TORX T10 screwdriver.
Steps for connecting the strain relief
1. Remove the PROFINET interface plate.
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