INVT GD200A-004G-4, Руководство по эксплуатации

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GD200A series VFD Fault tracking
-113-
Fault code Fault type Possible cause What to do
OC1
Over-current when
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
Over-current when
deceleration
OC3
Over-current when
constant speed
running
OV1
Over-voltage when
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 add
the dynamic braking
components

Install the braking
components

Check the setting of relative
function codes
OV2
Over-voltage when
deceleration
OV3
Over-voltage when
constant speed
running
UV
DC bus
Under-voltage

The voltage of the power
supply is too low

The overvoltage stall
protection is not open

Check the input power of
the supply line

Check the setting of relative
function codes
OL1 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 the power of the
supply line

Reset the rated current of
the motor

Check the load and adjust
the torque lift
OL2 VFD overload

The acceleration is too fast

Reset the rotating motor

The voltage of the power
supply is too low

Increase the ACC time

Avoid the restarting after
stopping

Check the power of the