INVT Goodrive350-19 Series Operation Manual page 389

Goodrive350-19 series VFD for crane
Fault
Fault type
code
SPI Input phase loss
Phase loss on
SPO
output side
Rectifier module
OH1
overheating
Inverter module
OH2 overheat
Fault
EF External fault
RS485
CE communication
Current detection
ItE
Motor autotuning
tE
Possible cause
Grid voltage too low.
Load too large.
Power is too small.
Phase loss or violent fluctuation
occurred on inputs R, S, and T.
Phase loss occurred to U, V, W
output (or the three phases of
motor is asymmetrical).
Air duct is blocked or fan is
damaged.
Ambient temperature is too
high.
Long-time overload running.
SI external fault input terminal
acts.
Baud rate set improperly.
Communication line fault.
Incorrect communication
address.
fault
Communication suffers from
strong interference.
Poor contact of the connector of
control board.
Hall component damaged.
fault
Exception occurred to
amplification circuit.
Motor capacity does not match
with the VFD capacity. This fault
may occur if the capacity
difference exceeds five power
classes.
fault
Motor parameter is set
improperly;
The parameters gained from
autotuning deviate sharply from
Select the VFD with larger power.
Select proper motor.
Check the input power.
Check the installation wiring.
Check the output wiring.
Check the motor and cable.
Ventilate the air duct or replace
the fan.
Lower the ambient temperature.
Check external device input.
Set a proper baud rate.
Check the wiring of
communication interfaces.
Set the communication address
correctly.
Replace or change the wiring to
enhance the anti-interference
capacity.
Check the connector and re-plug.
Replace the hall component.
Replace the main control board.
Change the VFD model, or adopt
V/F mode for control;
Set proper motor type and
nameplate parameters;
Empty the motor load and carry
out autotuning again.
Check the motor wiring and
parameter setup;
Check whether the upper limit
-377-
Troubleshooting
Solution