Goodrive170-PV Series Solar Pump Inverter Fault diagnosis and solution
-55-
Input voltage of the solar
cell panel is too high.
Model -4 is set as
another model.
Reduce the number of
solar cell panels in series
connection.
Check and reset the
model.
The power of the solar
cell panels in series
connection is too low or it
is cloudy and rainy
weather.
The starting current of
the motor is too high.
Increase the number of
solar cell panels or perform
the test in the normal
sunlight.
Replace the motor.
Fault on 422
communication
with the boost
module
Communication cables
are in poor contact.
Check four communication
cables of 422
communication, ensuring
that they are connected
reliably.
Bus overvoltage
detected on the
boost side
The sunlight changes
sharply.
Adjust the boost PI
parameters, and enlarge
the values of P19.07 and
P19.08.
The sunlight is weak or
the solar panel
configuration is
insufficient.
The device will
automatically run when the
light is sufficient.
Check whether the solar
panel configuration is
sufficient.
The pumping pool has no
water.
Check the pumping pool.
The pumping pool is full
If you have configured the
full-water pre-alarm
function, the device
automatically stops when
the pre-alarm elapsed a
period of time. Otherwise,
check whether terminals
are wired correctly.