VFD500 high performance vector control frequency inverter user manual Chapter6 Fault diagnosis and solutions
1.
Motor locked
2.
Encoder pulse setting wrong
3.
Encoder offline
1 check motor and
mechanical condition
2 set correct parameter for
encoder
3 check encoder
connecting line
1: The encoder parameters are
setincorrectly.
2: The motor auto-tuning is
notperformed.
3: The over-speed
detectionparameters are set
incorrectly
1: Set the encoder
parametersproperly.
2: Perform the motor
auto-tuning.
3: Set the over-speed
detection
parameter correctly
based on the actual
Too large
speed
deviation
1: The encoder parameters are
setincorrectly.
2: The motor auto-tuning is
notperformed.
3: The detection parameters of
toolarge speed deviation are
setincorrectly.
1: Set the encoder
parameters
properly.
2: Perform the motor
auto-tuning.
3: Set the detection
parameters
correctly based on the
Motor
auto-tuning
fault 1
1: The motor parameters are not
set
according to the nameplate.
2: The motor auto-tuning times
out.
1: Set the motor
parameters according to
the nameplateproperly.
2: Check the cable
connecting between the
Frequency inverter and
themotor.
Motor
auto-tuning
fault 3
1: The motor parameters are not
set
according to the nameplate.
2: The motor auto-tuning times
out.
1: Set the motor
parametersaccording to
the nameplateproperly.
2: Check the cable
connecting between the
Frequency inverter and
1、The frequency inverter
running currentis lower than the
setting value.
1、Confirm whether the
load is off
2、Check that the load is
disconnected or the
parameter
setting is correct
1.
Eeprom Operate too
frequent
2.
The EEPROM chip is
damaged.
1.
Operate Eeprom
suitable
2.
Replace the main
control board
Inverter trial time arrival
1:Contact agent or
distributor
1, The work of the host computer
is not normal
2, The communication line is not
normal
3, The communication parameter
set is incorrect
1. Check the connection
of upper computer
2. Check the
communication
connection line
3. Set communication
parameters correctly