Veikong VFD500 Series User Manual page 130

VFD500 high performance vector control frequency inverter user manual
Fault
Fault Name
code
IGBT
Module 14
overheat
Motor
16
overheat
By wave
current 17
limitingfault
Ground Er.GF
18
short circuit
module
temperature
20
detection
fault
Current
detection 21
fault
Possible Causes
Display
1: The ambient temperature is too
high.
2: The air filter is blocked.
3: The fan is damaged.
Er. oH
4: The thermally sensitive resistor
of
the IGBT module is damaged.
5: The inverter IGBT module is
damaged
1:The temperature sensor wiring is
loose
2:The motor temperature is too
Er. oH3
high
3:Themotor temperature sensor
detects that the temperature is
greater than the set threshold.
1: The load is too heavy or locked-
rotor occurs on the motor.
Er.CbC
2: The frequency inverter model is
of
too small power class
1. Motor burnout or insulation
aging
2, The cable is damaged and
contact, short circuit
3. The distributed capacitance of
the terminal and motor cable is
larger
motor cable
4, Hardware is damaged
1, Temperature
broken
Er.tCK 2, Drive board is faulty
3. Main control board is faulty
4, The environmental temperature
is too low
1: The HALL device is faulty.
Er.Cur
2: The drive board is faulty.
3: The control board is faulty
Chapter6 Fault diagnosis and solutions
1:Lower the ambient
temperature.
2: Clean the air filter.
3: Replace thedamaged fan.
4:Replace the damaged
thermally
sensitive resistor.
5: Replace the inverter module.
1:check the temperature sensor
wiring
2:Improve the carrier frequency,
strengthen the heat dissipation of
the motor, reduce the load, and
select a motor with higher power.
3:Check if the set threshold is
reasonable.
1: Reduce the load and check
the motor and mechanical
condition.
2: Select a frequency inverter of
higher power class.
1. Confirm the insulation
resistance of the motor. If it is
turned on, replace the motor.
2. Check the power cable of the
motor to eliminate the fault point.
3, reduce the carrier frequency,
install the output reactor
4, seeking technical support
detection line
1. Check the thermistor wiring
2. Ask for technical support
3. Ask for technical support
4, manual intervention to drive
the temperature rise
1: Replace the faulty HALL
device.
2: Replace the faulty drive board.
3: Ask for technical support.
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Solutions