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Check each bond on
the solar panels
Check the VOC does
not exceed 480V
Ensure both MPPTs are
balanced
Measure the supply
voltage check it
matches the settings of
the inverter
If it falls out of the
setting range it will
cause the inverse shut
down and alarm
See Grid Setup page
Check the battery
charge and discharge
is within the C rating of
the battery. Too high
will damage the battery
Check the battery BMS
is communicating with
the inverter
This is the heart of the
system this controller
everything
Ensure you are familiar
with this, if you fully
understand the
controller you will fully
appreciate the
capabilities of there
See section ‘Program
Charge / Discharge
Times’
This is for paralleling
systems, and wind
turbine
If paralleling inverters
in 3 Phase check you
phase rotation before
switching on the AC
Load, in 3 Phase the
output voltage will
increase across phase
to 400V
If using a wind turbine
please ensure you have
the correct limiting
resistor, caps and
rectifier
Familiarize yourself
with common fault
codes
6.3. GDFI Fault
Before the inverter connects to the Grid, it will detect the impedance (effective resistance) of the
solar PV + to Ground, and the impedance of the solar PV - to ground. If any of the impedance
values are less than 33kΩ, the inverter will not connect to the Grid and will report an error F24 on
its LCD.
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