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blue’Log X series
14.3.6
Limitation to agreed connection power P
AV
If this function is enabled, the feed-in active power is limited to the agreed upon
connection power P
AV
. Taking readings from a power quality analyzer or a feed-in meter
provides the blue’Log with measured values used as basis for calculating dynamic
inverter activation.
Should the feed-in active power of your PV system exceed the agreed upon
connection power, the inverters will be limited accordingly. This ensures feed-in active
power as specified by the grid operator will not be exceeded at the grid connection
point.
When using a feed-in meter we recommend the use of an accumulating meter. This
takes into account the energy flow in all three phases and subtracts the consumption
from the feed-in, while a non-accumulating meter only records the energy fed in
without deducting consumption.
14.3.7
Preset for fallback value
The fallback value is used to enable sending a constant specified active power value to
the inverters in the event of an error.
Fig. 66: P procedure fallback value
The fallback value is sent to the inverters in the event of the following errors:
Error when receiving specified values (digital input or multi input).
Error when configuring the selected active power procedure.
Communication error between the master blue’Log and slave blue’Log (delay time
before use of the fallback value is 10 minutes)
