ACD320user manual
Fault Diagnosis and countermeasures
The wiring of Serial port communication
error
Check if communication wiring
is correct
Communication function code parameter
F4 set improperly.
Modify the set of F4.03、F4.04.
Upper device doesn’t work
Check if upper device work and
wiring is correct
U-17 Reserved
Reserved
Reserved
U-18
U-19
U-20
U-21
U-22
current detecting
circuit failure
Connecting wire or insert on control
board loose
Assistant power supply damaged
Hall device damaged.
Amplifying circuit is abnormal.
Motor parameters is not set according to
rated data of motor
Auto tuning of motor
parameters failure
Whether it is proper to manually raise
torque or Accel/Decel time set
Reserved
EEPROM abnormal
The motor parameter
identification has been performed
overtime.
Mistake take place when read or write
control parameter
Overvoltage failure
Hardware of inverter
failure
Overcurrent failure.
Overvoltage or overcurrent hardware
circuit failure.
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Check and connect the wire
again
Look for service from
manufacturer or agent
Look for service from
manufacturer or agent
Look for service from
manufacturer or agent
Set the parameter of motor
correctly
Adjust the manual raising of
torque or extend Accel/Decel
time.
Ckeck the lead wire from
inverter to the motor.
Reset by pressing Look for
service from manufacturer or
agent
Deal witn the failure according
to the overvoltage fault .
Deal witn the failure according
to the overcurrent fault .
Look for service from
manufacturer or agent
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