Common Faults And Solution - Veikong VFD200A Series Operation Manual

Fault name display
Motor
Err43
over-speed
Motor
Err45
overheat
Initial
Err51
position fault
Braking unit
Err61
overload
Short-circuit
of braking Err62
circuit

7-2 Common faults and solution

The following fault conditions may be encountered during the use of the inverter. Please refer to the
following method for simple fault analysis.
Table 7-1 Common faults and solutions
No. Fault phenomenon
There is no display at
1
power-on.
"FZKJ" is displayed at
2
power-on.
Chapter 7 Faults and Solutions
Troubleshoot the cause
incorrectly.
1: Set the encoder parameters
properly.
2: Perform the motor auto-tuning.
3: Set P9-69 and P9-70 correctly
based on the actual situation.
1: The cabling of the temperature
sensor becomes loose.
2: The motor temperature is too
high.
The motor parameters are not set
based on the actual situation.
Resistance of braking resistor is
too small.
Braking IGBT is abnormal.
Possible Causes
1: There is no power supply to the
inverter or the power input to the
inverter is too low.
2: The power supply of the switch
on the driver board of the inverter is
faulty.
3: The rectifier bridge is damaged.
4: The control board or the
operating panel is faulty.
5: The cable connecting the control
board and the driver board and the
operating panel breaks.
1: The cable between the driver
board and the control board is in
poor contact.
2: Related components on the
control board are damaged.
3: The motor or the motor cable is
short circuited to the ground.
4: The HALL device is faulty.
1: Set the encoder parameters properly.
2: Perform the motor auto-tuning.
3: Set P9-69 and P9-70 correctly based on
the actual situation.
1: Check the temperature sensor cabling
and eliminate the cabling fault.
2: Lower the carrier frequency or adopt
other heat radiation measures.
Check that the motor parameters are set
correctly and whether the setting of rated
current is too small.
Replace a braking resistor of larger
resistance.
Contact the agent or company to support.
1: Check the power supply.
2: Check the bus voltage.
3: Re-connect the 8-core and 34-core
cables.
4: Contact the agent or company to
support.
1: Re-connect the 8-core and 34-core
cables.
2: Contact the agent or company to
support.
114
solutions
solutions