INVT Goodrive350 Series Operation Manual page 291

Goodrive350 series high-performance multifunction VFD
Fault
Fault type
code
input side
[14] Phase loss on
SPO
output side
[15] Overheat of
OH1
rectifier module
[16] Overheat of
OH2
inverter module
EF [17] External fault
Modbus/Modbus
CE
TCP communication
[19] Current
ItE
detection fault
[20] Motor
tE
autotuning fault
fluctuation occurred to R, S
and T input
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 is set improperly;
[18] Communication line fault;
Communication address
error;
fault Communication suffers from
strong interference
Poor contact of the
connector of control board;
Hall component is damaged;
Exception occurred to
amplification circuit
Motor capacity does not
match with the VFD capacity,
this fault may occur easily if
the difference between them
is exceeds five power
classes;
Motor parameter is set
improperly;
The parameters gained from
autotuning deviate sharply
from the standard
parameters;
Autotuning timeout
Possible cause
-282-
Troubleshooting
Corrective measures
Check 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 proper baud rate;
Check the wiring of
communication interfaces;
Set proper communication
address;
Replace or change the wiring to
enhance 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 motor wiring and
parameter setup;
Check whether upper limit
frequency is larger than 2/3 of
the rated frequency