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Fault206
BUS
low-voltage
Inverter shutdown
and will restart
automatically after
the fault
disappears.
The grid voltage is
too low, or the
array voltage is too
low or a hardware
failure.
Disconnect the
grid and PV input
switch to ensure that
the inverter input has
no voltage. Check the
grid voltage and PV
voltage with a
multimeter.
Fault207
Shortage-pha
se input
Inverter shutdown
and will restart
automatically after
the fault
disappears.
One or two phase
output cables of the
grid are not well
connected to the
inverter.
The power grid
connection is loose
and falls off.
Disconnect the
grid and PV input
switch to ensure that
the inverter input has
no voltage.
Check the wiring
on the input side of the
grid.
