[
ECTIVE
®
SINUS/SINE INVERTER – CSI-/SSI-SERIES
]
54
Functional diagrams of charger/MPPT-solar
charge controller
G
eneral information about charging function
Device switched on:
in Inv. mode (pure inverter mode):
• only solar power is used to charge the batteries.
• only solar power is used to supply the 230 V consumers.
in UPS mode (uninterruptible power supply):
• Solar power is primarily used to charge the batteries.
• Shore power is primarily used to supply 230 V consumers.
• If solar power is disconnected or it becomes dark, the system switches from solar to
AC charging via shore power after approx. 30 seconds.
Device switched off:
• Si
multaneous charging with solar and shore power possible
(like scenario 5, see from page 56).
Explanation of charging phases CSI- and SSI-series
The integrated charger as well as the MPPT-solar charge controller of the SSI-series
charge automatically with a 3-step IUoU charge characteristic which is described on the
following page.
Bulk (main charge): The battery is charged with permanent current and carefully rising
voltage until a predefined maximum voltage and until a stage of charging of 80% is
reached.
Absorption (remaining charge): The battery is charged with permanent current and
gradual decreasing current from 80% to 14,4 V* and a 100% capacity. The gradual
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