P30 x-series Functions
Configuration manual V4.01
33
© KEBA
5.5 Integration of external meters
The charging station can read the measured values from external meters us-
ing Modbus TCP. This allows an intelligent calculation of the charging cur-
rent provided to the vehicle, and the charging process is optimized. The
measured values read are included in the charging current specification. The
following graphic shows the schematic structure of the system.
Illustration5-9: Modbus TCP system overview
1 ... Public power grid 2 ... Pre-meter fuse (high-capacity fuse,
line circuit breaker, ...)
3 ... Electricity meter of the network op-
erator
4 ... Post-meter fuse
5 ... External meter (house connection
meter)
Information
The illustration provides an exemplary system overview and does not in-
clude all the necessary ancillary equipment required for safe operation of
the equipment (e.g. line circuit breaker, residual-current device ...).
Domestic Connection Monitoring
By means of the domestic connection monitoring, the charging vehicle can
be dynamically provided with the respective available charging current, de-
pending on the remaining consumers on the house connection. This ensures
that the domestic connection safety device is not overloaded, and that it is
not always necessary to select a lower charging capacity than would be pos-
sible with the vehicle and the installation.
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