Connection Of Equipotential Bonding Line - Siemens SIMATIC Series Operating Instructions Manual

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.
Requirement
● T20 screwdriver
Procedure
1. Connect the identified connection for functional earthing
via an equipotential bonding line to the equipotential
bonding rail or grounding bar of the control cabinet in
which the device is installed.
The minimum cross-section of the equipotential
bonding line is 2.5 mm
SIMATIC IPC547G
Operating Instructions, 04/2020, A5E49948632-AA
.
2
Installing and connecting the device
3.3 Connecting the device
47