Veikong VFD500 Series Operation Manual page 96

VFD500 high performance vector control frequency inverter user manual
Fault Name Display
module temperature
Er.tCK
detection fault
485Communication
Er.485
fault
Current
Er.CUr
detection fault
Motor
auto-tuning Er.TU1
fault 1
Motor
auto-tuning Er.TU2
fault2
EEPROM
read- write Er.EEP
fault
Off load Er. LL
PID feedback
lost during Er.FbL
running
User-defined
Er.Ud1
fault 1
User-defined
Er.Ud2
fault 2
Possible Causes
1, temperature detection line broken
2, drive board is faulty
3. Main control board is faulty
4, the environmental temperature is too
low
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: The HALL device is faulty.
2: The drive board is faulty.
3: The control board is faulty
1: The motor parameters are not set
according to the nameplate.
2: The motor auto-tuning times out.
1: The motor parameters are not set
according to the nameplate.
2: The motor auto-tuning times out.
1、 Eeprom Operate too frequent
2、 The EEPROM chip is damaged.
1、The frequency inverter running
currentis lower than the setting value.
1、 PID feedback<P40.35 setting value
and P40.36 not zero,PID
feedback>P40.37 setting value and
P40.38 not zero
1: The signal of user-defined fault 1 is
input via DI.
2:The signal of user-defined fault 1 is
input via virtual I/O.
1: The signal of user-defined fault 2 is
input via DI.
2:The signal of user-defined fault 2 is
input via virtual I/O.
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Chapter6 Fault diagnosis and solutions
Solutions
1. Check the thermistor wiring
2. Ask for technical support
3. Ask for technical support
4, manual intervention to drive the
temperature rise
1. Check the connection of upper
computer
2. Check the communication
connection line
3. Set communication parameters
correctly
1: Replace the faulty HALL
device.
2: Replace the faulty drive board.
3: Ask for technical support.
1: Set the motor
parametersaccording to the
nameplateproperly.
2: Check the cable connecting
between the Frequency inverter
and themotor.
1: Set the motor
parametersaccording to the
nameplateproperly.
2: Check the cable connecting
between the Frequency inverter
and themotor.
1、 Operate Eeprom suitable
2、 Replace the main control
board
1、Confirm whether the load is off
2、Check that the load is
disconnected or the parameter
setting is correct
1、 check PID feedback signal
2、 P40.35 and P40.37 set correct
parameter
1: Reset the operation.
2: Reset the operation
1: Reset the operation.
2: Reset the operation