REFUsol 20K-2T (853P020.200)
User manual
The Grid voltage
sampling value
between the
master and
salve is not
consistent
3 lines' DCI
consistency error
There are internal faults of inverter,
turn OFF the “DC switch”, wait for 5
minutes, then turn ON the “DC
switch”. Check whether the fault is
rectified. If no, please contact
technical support.
SPI
Communication
Faulty (DC side)
SPI
Communication
Faulty (AC side)
Please check whether the resistance
to ground of PV string is too low and
whether the insulation of PV cable is
damaged. If the use method is not
ruled out, please contact the new
energy customer service of Capital
Airlines.
Please check the wiring of PV string,
whether each PV input is
independent. Check the setting of
MPPT input mode (Parallel mode /
independent mode) of the inverter
and correct them if applicable
Please check the wiring of input,