SMA FUEL SAVE CONTROLLER 2.0 Instrucciones De Uso página 76

8 System Control
Parameter Description
SimultaneousPc Simultaneous factor for Gen-
PwrAtResSpnt while PV is request-
ing more ResPwr in % of LoadP-
wrAtRes
The value 0% means that the
events do not occur at the same
time. If the events do not occur at
the same time, the Fuel Save
Controller does not have to pro-
vide as much reserve power.
BatPwrAtResMaxPc Percentage of the available re-
serve power from battery system
which shall be considered for re-
serve power management
GenResPwrThrsld Threshold for preventing over-
loading of gensets by feeding in
battery reserve power. In relation
to the genset's nominal power
PvPwrAt- Minimum injected active PV
SafeModeMin power, if system is in safe mode.
Requirement:
☐ You must be logged in as Installer.
Destruction of gensets due to insufficient reserve power
Once the SMA Fuel Save Controller and PV power plant have stopped, the PV power plant is no longer available as
energy supplier. Now only the gensets supply the loads. If the current reserve power of the gensets is insufficient for
supplying the power required by the loads, the gensets become overloaded Sustained overload of the gensets can
result in failure of the power supply and destruction of the gensets.
• Prior to stopping the Fuel Save Controller, always check whether the current reserve power of the gensets is
sufficient to cover the requirement of the loads.
– If the current reserve power of the gensets is insufficient, switch off the loads or connect additional gensets.
This increases the reserve power of the gensets.
• If the power management and the communication interface of the genset is not compatible with the
Fuel Save Controller, power management must be deactivated on the Fuel Save Controller. In this case, the
gensets must be monitored to ensure that sufficient reserve power is retained.
• Make sure that the setpoints for power management on the Fuel Save Controller and the gensets are set to the
same value.
Procedure:
1. Go to Control Functions > Genset control functions > Genset power management via the page and menu
selection.
2. Set the desired parameters (see Section 4.8.3, page 20).
76 FSC20-BA-xx-20
Value Explanation
0% to 100%
0% to 120%
50% to 120%
0 kW to –
100000 kW
SMA Solar Technology AG
Default
value
– 50 %
– 70 %
90 %
0 kW
User Manual