Installing and connecting the device
3.3 Connecting the device
SIMATIC IPC647E
48 Operating Instructions, 11/2018, A5E45589180-AA
3.3.2 Connection of equipotential bonding line
A low-impedance earth connection ensures that interference signals generated by external
power supply cables, signal cables or other cables to the I/O devices are safely discharged
to earth.
The connection for functional earthing on a device has a large surface, makes contact over a
large area and is marked with the following symbol.
You can find information on the position of the functional earthing connection under "Rear of
the device (Page 19)".
Requirement
● T20 screwdriver
● Equipotential bonding conductor with a minimum cross section of 2.5 mm
2
Procedure
1. Make the connection for functional ground via an equipotential bonding line to the
equipotential bonding rail or grounding bar of the control cabinet in which the device is
installed.
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