Veikong VFD500 Series User Manual page 129

VFD500 high performance vector control frequency inverter user manual
Fault
Fault Name
code
Motor
11
overload
Power input
12
phase loss
Power
output 13
phase loss
Possible Causes
Display
1:The load is too large or the motor
is blocked.
2:The large
acceleration and deceleration time
is too short
3:When the VF is controlled, the
Er.oL1
torque boost or V/F curve is not
suitable.
4:The motor selection is too small
5:overload at low speed operation
6:Improper
parameters and motor protection
parameters
1: The three-phase power input is
abnormal.
Er.iLP 2: The drive board is faulty.
3: Thelightning proof board is
faulty.
4: The main control board is faulty.
1: The cable
frequency
inverter and the motor is faulty.
2: The frequency inverter's
Er.oLP
three-phase
unbalanced
when the motor is running.
3: The drive board is faulty.
4: The IGBT module is faulty.
1. Reduce the load and check
the motor and mechanical
conditions. Correctly set the
motor parameters and motor
inertia load
protection parameters.
2, increase the acceleration and
deceleration time
3. Adjust the torque boost or V/F
curve
4, select a motor with a higher
power level
5. Perform motor self-learning in
setting of motor
cold state and reduce carrier
frequency at low speed
6, check the settings of related
parameters
1:Eliminate external faults.
2: Ask for technical support.
3: Ask for technical support.
4: Ask for technical support.
connecting the
1:Eliminate external faults.
2: Check whether the
Motor three phase winding
outputs are
is normal.
3: Ask for technical support.
4: Ask for technical support.
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Chapter6 Fault diagnosis and solutions
Solutions