INVT Goodrive170-PV Series Operation Manual page 59

Goodrive170-PV Series Solar Pump Inverter
Fault
Fault type
code
PVOV PV overvoltage
PVLV PV undervoltage
Fault on 422
communication
E-422
with the boost
Bus overvoltage
OV detected on the
boost side
Weak-light
A-LS
pre-alarm
Underload
A-LL
pre-alarm
Full-water
A-tF
pre-alarm
Input voltage of the solar

cell panel is too high.
Model -4 is set as

another 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.
Communication

are in poor contact.
module
 The sunlight changes
sharply.
The sunlight is weak or

the solar panel
configuration is
insufficient.
The pumping pool has no

water.
The pumping pool is full

Possible cause
cables
-55-
Fault diagnosis and solution
Solution
Reduce the number of

solar cell panels in series
connection.
Check and reset the

model.
 Increase the number of
solar cell panels or perform
the test in the normal
sunlight.
Replace the motor.

 Check four communication
cables of 422
communication, ensuring
that they are connected
reliably.
Adjust the boost PI

parameters, and enlarge
the values of P19.07 and
P19.08.
The device will

automatically run when the
light is sufficient.
 Check whether the solar
panel configuration is
sufficient.
 Check the pumping pool.
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.