INVT Goodrive170-PV Series

Goodrive170-PV Series Solar Pump Inverter Fault diagnosis and solution
-52-
Fault
code
Fault type
Possible cause
Solution
 There is to-ground short
circuit or output phase
loss.
 There is strong external
interference.
 The overvoltage stall
protection is not enabled.
 Check the output wiring.
 Check whether there is
strong interference.
 Check the setting of related
function codes.
UV
Bus undervoltage
 The voltage of the grid is
too low.
 Overvoltage stall
protection is not enabled.
 Check the grid input power;
 Check the settings of
related function code.
OL1
Motor overload
 The grid voltage is too
low.
 The motor rated current
is set incorrectly.
 Motor stall or load jumps
violently.
 Check the grid voltage;
 Reset the rated current of
the motor;
 Check the load and adjust
torque boost.
OL2
Inverter overload
 Acceleration is too fast.
 The rotating motor is
reset.
 The grid voltage is too
low.
 The load is too heavy.
 The motor power is too
small.
 Increase the ACC time.
 Avoid the restarting after
stop.
 Check the grid voltage.
 Select an inverter with
larger power.
 Select a proper motor.
SPI
Phase loss on the
input side
 Phase loss or violent
fluctuation occurred on
input R, S, T.
 Check the input power;
 Check the installation
wiring.
SPO
Phase loss on
output side
 Phase loss output occurs
to U, V, W (or the three
phases of the load are
seriously asymmetrical)
 Check the output wiring;
 Check the motor and
cable.
OH1
Rectifier module
overheating
 Air duct jam or fan
damage occurs.
 Ambient temperature is
too high.
 The time of overload
running is too long.
 Dredge the vent duct or
replace the fan.
 Lower the ambient
temperature.
OH2
Inverter module
overheat