Wiring loads/actuators
6.2 Wiring loads/actuators
Analog value processing
Function Manual, 06/2014, A5E03461439-AC
105
Reference potential for analog output modules without M
ANA
connection
Analog output modules have no galvanic connection between the reference potential of the
analog output circuits and central ground.
Always verify that the maximum potential difference U
ISO
between the reference points of the
analog output circuits 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, interconnect each analog
output circuit with the central ground using an equipotential bonding cable.
Load on the voltage output
Equipotential bonding cable
Figure 6-2 Example: Reference potential for an analog output module without M
ANA
connection
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