Assembly guidelines
Application Module FM 458-1 DP - User Manual 5-7
A5E01078222-02 Edition 03.2009
SIMADYN D
A
SIMADYN D
B
Schaltschrank
Switching cubicle
< 2 m
LEISTUNGS-
KOMPONENTEN
POWER
COMPONENTS
fest mit Schrankholm
verbunden
connected fixed
with cubicle beam
5.1.10 Protective grounding
The protective ground is connected via the protective conductor (PE) at
the cabinets and components. For S7-400, the potential bonding
conductor/cable does not have a protective conductor function.
For S7-400, it is required for reliable operation and noise suppression.
The protective conductor must be routed in accordance with DIN VDE
0100 and DIN VDE 0160.
For subracks, the protective conductor cross-section must be
10 mm
2
.
For additional information refer to Installation Manual „S7-400 and
M7-400 Programmable Controllers Hardware and Installation“.
5.1.11 Cabinet
If the S7-400 components are installed in an electrical cabinet, then
this must be implemented as follows:
Each cabinet must have a ground/potential bonding rail, which is
connected to the cabinet frame at both ends.
All S7-400 subracks must be connected to the grounding/potential
bonding rail through a 10 mm
2
cable which should be as short as
possible. The connection via the PE connection of the power supply is
not sufficient.
Basic circuit
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