INVT IPE300 Series, Opeartion Manual

Page: 259 / 383

IPE300 series engineering VFD Troubleshooting
-248-
Fault
code
Fault
No.
Fault type Possible cause Solution
restarted;
The voltage of the grid is too
low;
Load is too large;
Power is too small.
Check the grid voltage;
Select the VFD with larger
power;
Select proper motor.
SPI 13
Phase loss on input
side
Phase loss or violent
fluctuation occurred on input
R, S, T
Check the input power;
Check the installation
wiring.
SPO 14
Phase loss on
output side
Phase loss occurred to U, V, W
output (or the three phases of
motor is asymmetrical).
Check the output wiring;
Check the motor and cable.
OH1 15
Rectifier module
overheating
Air duct is blocked or fan is
damaged;
Ambient temperature is too
high;
Long-time overload running.
Ventilate the air duct or
replace the fan;
Lower the ambient
temperature.
OH2 16
Inverter module
overheat
EF 17 External fault
SI external fault input terminal
acts.
Check external device input.
CE 18
RS485
communication fault
Baud rate is set improperly;
Communication line fault;
Incorrect communication
address;
Communication suffers from
strong interference.
Set 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.
ItE 19
Current detection
fault
Poor contact of the connector
of control board;
Hall component is damaged;
Exception occurred to
amplification circuit.
Check the connector and
re-plug;
Replace the hall
component;
Replace the main control
board.
tE 20
Motor autotuning
fault
Motor capacity does not match
with the VFD capacity, this
fault may occur easily if the
difference between them is
exceeds five power classes;
Change the VFD model, or
adopt V/F mode for control;
Set proper motor type and
nameplate parameters;
Empty the motor load and