Plant installation
4.12 Insulation monitor
Power Line Booster
60
Operating Instructions, 11/2019, A5E36203125A-AG
See also
PLB connection cable (Page 32)
4.12
Insulation monitor
The operation of an insulation monitor may be necessary for safety reasons. This remains
the responsibility of the plant constructor.
WARNING
The Power Line Booster system can be operated in low-voltage plants up to 500 V AC. A
single short-circuit between a phase (L1 or L2 or L3) and Rail A or Rail B may represent a
fault for this device as indicated by the error LED, but this does not prevent communication.
However, this means that dangerous contact voltages are present on Rail A or Rail B (and
the connected components) without the function being impaired. You need to consider this
during maintenance.
If you are using an insulation monitor (such as Bender insulation monitor, in Europe) for
safety reasons, it must be connected between the supply transformer and the line filter.
Содержание SIMATIC Power Line Booster
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