Veichi SI23-D1 series Manual page 11

Over current at
E.oC3
constant speed
E.oL1 Motor overload
E.oL2 AC drive overload
curve is not appropriate.
● The voltage is too low.
●The startup operation is
performed on the rotating
motor.
●A sudden load is added
during acceleration.
●The AC drive model is of
too small power class.
●The output circuit is
grounded or short circuited.
●Motor auto-tuning is not
performed.
●The voltage is too low.
● A sudden load is added
during operation.
●The AC drive model is of
too small power class
● Boost torque is too big
under VF control
●ACC. and DEC. time is too
short
●Motor parameters setting is
improperly
●Restart motor which in
counter rotate
●The grid voltage is too lower
●Load is too big or motor
block load
●AC drive selected is too
load
●Boost torque is too big
under VF control
●ACC. and DEC. time is too
short
●Motor parameters setting is
improperly
●Restart motor which in
counter rotate
●The grid voltage is too lower
●Load is too big or motor
block load
11
SI23 Solar Pump Inverter Manual
● Select rotational speed tracking
restart or start the motor after it
stops.
● Remove the added load.
● Select an AC drive of higher power
class.
● Eliminate external faults.
●Perform the motor auto tuning.
●Adjust the voltage to normal range.
● Remove the added load.
● Select an AC drive of higher power
class.
●Reduce boost torque
●Increase the ACC./DEC. time
● Reset motor parameters
●Reduce current limit and adopt
speed tracking
● Check grid voltage
● Check load condition
●Change bigger power AC drive
●Reduce boost torque
● increase the ACC./DEC. time
●reset motor parameters
●Reduce current limit and adopt
speed tracking
● Too check grid voltage
●Too check load
●change bigger power AC drive