Connecting The Equipotential Bonding Circuit - Siemens Simatic box pc 627b Operating Instructions Manual

6.4

Connecting the equipotential bonding circuit

6.4
A low-impedance earth connection ensures that interference signals generated by external
power supply cables, signal cables or cables to the I/O modules are safely discharged to
earth.
Equipotential bonding terminal
The equipotential bonding terminal 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
SIMATIC Box PC 627
Operating Instructions, Release 05/2006, A5E00362052-03
.
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6.4 Connecting the equipotential bonding circuit
Connecting
6-5