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Installation and operating instructions
QX³ series
6.3.4.4 Reduction of dynamic power to 70%, measurement of own
consumption via S0 interface.
The inverter or inverter group are initially limited as explained in Chapter 7.3.4.3
Reduction of static power to 70%. Here, however, your own consumption is taken
into account and the power of the inverter limited to a lesser degree accordingly.
A power limitation of 70% of the total installed power (PV generator output
power) is ensured at the grid connection point. Please contact your grid operator
for information if you wish to use this function.
Care must be taken here to ensure that the S0 output of the own consumption
meter is connected to the S0 input of the first inverter. Otherwise the maximum
power of the inverter or the inverter group is limited to 70% of the total PV
generator output power. This also guarantees the 70% limitation specified by the
grid operator in the event of a fault in the S0 interface (e.g. due to a defective
cable).
External control via network interface
The Q3 photovoltaic inverters can be operated via the integrated network
interface (LAN) to monitor the system using external monitoring devices that have
been approved by Q3 ENERGIE. The effective power and the power factor of the
inverter can also be reduced or set using the interface. These functions that are
used via the external devices must be compliant with the country-specific
standards for generation systems on the low-voltage network (e.g. VDE-AR-N
4105).
In order to use the external components, these must be connected to the
LAN/BUS socket of the inverter and must have the LAN "activated" (see chapter
6.3.7).
When using several inverters within a PV system, the master device within this
group must be connected to the external equipment.
Details can be found in the documentation for the devices that are used.
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Q3 ENERGIE Installation and operating instructions QX³ series
Version 1.0, Stand 27.04.2015
96/109
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