INVT GD20-0R4G-2-UL, Operation Manual

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Goodrive20-UL Series VFD Fault tracking
-107-
Fault
code
Fault type Possible cause Solutions
OUt3
[3] Inverter unit W
phase protection
interference;

The connection of the
driving wires is not
good;

Grounding is not
properly.
wires;

Inspect external
equipment and
eliminate interference.
OC1
[4] Overcurrent
during acceleration

The acceleration or
deceleration is too
fast.

The voltage of the grid
is too low.

The power of the VFD
is too low.

The load transients or
is abnormal.

The grounding is
short circuited or the
output is phase loss.

There is strong
external interference.

The overvoltage stall
protection is not open.

Increase the ACC
time.

Check the input
power.

Select the VFD with a
larger power.

Check if the load is
short circuited (the
grounding short
circuited or the wire
short circuited) or the
rotation is not smooth.

Check the output
configuration.

Check if there is
strong interference.

Check the setting of
relative function
codes.
OC2
[5] Overcurrent
during deceleration
OC3
[6] Overcurrent
during constant
speed running
OV1
[7] Overvoltage
during acceleration

The input voltage is
abnormal.

There is large energy
feedback.

No braking
components.

Braking energy is not
open.

Check the input power

Check if the DEC time
of the load is too short
or the VFD starts
during the rotation of
the motor or it needs
to increase the energy
consumption
components.

Install the braking
components.

Check the setting of
relative function
codes.
OV2
[8] Overvoltage
during deceleration
OV3
[9] Overvoltage
during constant
speed running