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6.4
Connecting equipotential bonding
The equipotential bonding terminal (M4 thread) on the device (large surface, large-area
contact) must be connected to the PE conductor on the cabinet or system in which the
device is to be installed. The minimum cross-section is 5 mm
The PE terminal is needed to protect the device and ensures that interference signals
generated by external power cables, signal cables or cables to the I/O modules are safely
discharged to earth.
Connecting equipotential bonding
Connect the equipotential bonding
terminal on the device (large surface,
large-area contact) to the central
grounding busbar of the cabinet in
which the device is installed. The
minimum cross-section is 5 mm
SIMATIC Box PC 627B
Operating Instructions, 06/2008, A5E00927393-02
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2
6.4 Connecting equipotential bonding
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2
Connecting
43
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