INVT Goodrive300-21 Series - Page 75

Goodrive300-21 integrated machine for air compressor Troubleshooting
-71-
Fault
code
Fault type
Possible cause
Solution
restarted;
The voltage of the grid is too
low;
Load is too large.
Check the grid voltage;
Select the inverter with larger
power;
Select a proper motor.
SPI
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
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 cables.
OH1
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
Inverter module
overheat
EF
External fault
S external faulty input terminal
action.
Check external device input.
CE
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
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
Motor autotuning
fault
The motor capacity does not
match the inverter capacity;
Motor parameter is set
improperly;
The parameters gained from
autotuning deviate sharply
from the standard parameters;
Autotuning timeout.
Change the inverter model;
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
frequency is larger than 2/3 of
the rated frequency.