INVT Goodrive20-EU VFD Series, Operation Manual

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Goodrive20-EU Series VFD Fault tracking
-108-
Fault
code
Fault type Possible cause Solutions
OV2
[8] Overvoltage
during
deceleration
feedback;

No brake components;

Braking energy is not
open.
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.
OV3
[9] Overvoltage
during constant
speed running
UV
[10] Bus
undervoltage

The voltage of the power
supply is too low.

Check the input power of
the supply line.
OL1
[11] Motor
overload

The voltage of the power
supply is too low;

The motor setting rated
current is incorrect;

The motor stall or load
transients is too strong.

Check grid voltage;

Reset the rated current of
the motor;

Check the load and adjust
the torque lift.
OL2
[12] VFD
overload

Acceleration is too fast;

Restart the rotating motor

Grid voltage is too low;

The load is too heavy;

The rated power is much
larger than the power
actually needed.

Increase acceleration
time;

Avoid restarting after
stopping;

Check the grid voltage;

Select a VFD with larger
power;

Select a proper motor.
SPI
[13] Phase loss
on input side

Phase loss or fluctuation of
input R, S, T.

Check input power

Check installation wiring.
SPO
[14] Phase loss
on output side

U, V, W phase loss output
(or serious asymmetrical
three phase of the load).

Check the output wiring;

Check the motor and
cable.
OH1
[15] Rectifier
module
overheat

Air duct is blocked or fan is
damaged;

Ambient temperature is
too high;

The time of overload
running is too long.

Refer to the overcurrent
solution;

Redistribute;

Dredge the wind channel
or change the fan;

Lower down the ambient