Establishing An Additional Ground Connection - Siemens SITOP PSU8600 Manual

6.5

Establishing an additional ground connection

The power supply system (including the optional expansion modules) fulfills the
requirements relating to electromagnetic compatibility (noise emission, noise immunity), see
Chapter "Safety, approvals, EMC (Page 405)".
For larger system configurations, i.e. involving a basic unit and several expansion modules, it
may make sense, depending on the actual application, to establish an additional ground
connection between the basic unit and expansion modules to increase the noise immunity
and to reduce noise emission.
Route the additional ground connection from terminal "0V" of the basic unit to terminal
"GROUND" of the first expansion module, and from there, to additional expansion modules
by looping through the conductor as shown in the diagram below.
The possible wire/conductor cross-section for the additional ground connection is max.
2.5 mm
NOTICE
Overload of the wiring
It is not permissible to use the "GROUND" terminals of the expansion modules for the
connection to the common collection point of the 0 V potential of the loads to be supplied
(for example, the 0 V rail of the system).
Only establish the connection between the power supply system and the common
collection point of the 0 V potential via terminal "0V" of the basic unit.
See also Chapter "Connections and terminal designations (Page 32)".
Power supply system SITOP PSU8600
Manual, 09.2018, A5E36758446-5-76
.
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6.5 Establishing an additional ground connection
Installation
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