Wiring loads/actuators
6.2 Wiring loads/actuators
Analog value processing
104
Function Manual, 06/2014, A5E03461439-AC
6.2
Wiring loads/actuators
Reference potential for analog output modules with M
ANA
connection
Analog output modules have no galvanic connection between the reference point of the
analog ground M
ANA
and the central ground.
Always verify that the admissible potential difference U
ISO
between the reference point of the
analog ground M
ANA
and the central ground is not exceeded.
Potential difference U
ISO
may be caused by: Maximum line lengths exceeded.
If you want to ensure the maximum value U
ISO
is not exceeded, wire terminal M
ANA
and the
central ground with an equipotential bonding cable.
①
Load on the voltage output
②
Equipotential bonding cable
③
Grounding bus cable
④
Central ground
Figure 6-1
Example: Reference potential for an analog output module with M
ANA
connection
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