INVT Goodrive350 Series Operation Manual page 286

Goodrive350 IP55 High-ingress Protection Series VFD
Fault
Fault type
code
overload
[13] Phase loss
SPI
on input side
[14] Phase loss
SPO
on output side
[15] Rectifier
OH1 module
overheating
[16] Inverter
OH2
module overheat
EF [17] External fault
Modbus/Modbus
CE TCP
communication
[19] Current
ItE
detection fault
[20] Motor
tE
autotuning fault
Possible cause
The motor is restarted during
rotating.
Grid voltage too low.
Load is too heavy.
Power is too small.
Phase loss or violent fluctuation
occurred on input R, S, T.
Phase loss occurred to U, V, W
output (or the three phases of
motor is asymmetrical).
Air duct blocked or fan
damaged.
Ambient temperature is too
high.
Long-time overload running.
SI external faulty input terminal
action.
Incorrect baud rate.
[18]
Communication line fault.
Incorrect communication
address.
Communication suffers from
fault
strong interference.
Poor contact of the connector of
control board.
The Hall component is
damaged.
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.
Incorrect motor parameter
setting.
Avoid restart after stop.
Check the grid voltage.
Select a VFD with larger power.
Select a 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 communication port
cable.
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
re-perform autotuning.
Check motor wiring and
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Troubleshooting
Solution