Goodrive20-EU series VFD
Fault tracking
107
Fault
code
Fault type
Possible cause
Solutions
OC1
Over-current
during
acceleration
Acceleration is too fast;
Grid voltage is too low;
VFD power is too small;
Load transients or is abnormal;
To-ground short circuit or output
phase loss occur;
There is strong external
interference;
The overvoltage stall protection
is not open
Increase acceleration time;
Check input power;
Select the VFD with a larger
power;
Check if the load is short
circuited (to-ground short circuit
or line-to-line short circuit) or the
rotation is not smooth;
Check the output wiring;
Check if there is strong
interference;
Check the setting of related
function codes.
OC2
Over-current
during
deceleration
OC3
Over-current
when running
at constant
speed
OV1
Over-voltage
during
acceleration
The input voltage is abnormal;
There is large energy feedback;
No brake components;
Braking energy is not open
Check the input power;
Check if the load deceleration
time is too short or the VFD
starts during the rotation of the
motor or it is necessary to install
dynamic braking components;
Install the brake components;
Check the setting of related
function codes
OV2
Over-voltage
during
deceleration
OV3
Over-voltage
when running
at constant
speed
UV
DC bus
under-voltage
The voltage of the power supply
is too low
Check the input power of the
supply line
OL1
Motor overload
1. The voltage of the power
supply is too low.
2. The motor setting rated
current is incorrect.
3. The motor stall or load
transients is too strong.
1. Check grid voltage
2. Reset the rated current of the
motor
3. Check the load and adjust the
torque lift
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