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.
①
Load on the voltage output
②
Equipotential bonding cable
③
Grounding bus cable
④
Central ground
Figure 6-2
Example: Reference potential for an analog output module without M
ANA
connection
Содержание SIMATIC ET 200AL
Страница 2: ......
Страница 143: ......
Страница 218: ......
Страница 250: ......
Страница 296: ......
Страница 337: ......
Страница 365: ......
Страница 392: ......
Страница 419: ......
Страница 451: ......
Страница 483: ......
Страница 597: ......
Страница 648: ......
Страница 702: ......
Страница 739: ......
Страница 781: ......
Страница 804: ......
Страница 828: ......
Страница 853: ......
Страница 880: ......
Страница 906: ......
Страница 996: ...Diagnostics ...
Страница 1121: ......
Страница 1565: ......