INVT Goodrive170-PV Series - Page 59

Goodrive170-PV Series Solar Pump Inverter Fault diagnosis and solution
-55-
Fault
code
Fault type
Possible cause
Solution
PVOV
PV overvoltage
 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.
PVLV
PV undervoltage
 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.
E-422
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.
OV
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.
A-LS
Weak-light
pre-alarm
 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.
A-LL
Underload
pre-alarm
 The pumping pool has no
water.
 Check the pumping pool.
A-tF
Full-water
pre-alarm
 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.