INVT Goodrive300-01A Series, Руководство по эксплуатации

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Goodrive300-01A series VFD for air compressor Fault information and troubleshooting
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Chapter 6 Fault information and troubleshooting
6.1 VFD faults and solutions
Note: The numbers enclosed in square brackets such as [1], [2] and [3] in the Fault type column in
the following table indicate the VFD fault type codes read through communication.
Fault
code
Fault type Possible cause Solution
OUt1
[1] Inverter unit U
phase protection

Acceleration is too fast.

Internal damage occurs to
the IGBT of this phase.

Misacts caused by
interference.

Drive wires are connected
improperly.

Short-circuited to ground.

Increase acceleration time.

Replace power unit.

Check the drive wires.

Check whether peripheral
equipment suffers from
strong interference source.
OUt2
[2] Inverter unit V
phase protection
OUt3
[3] Inverter unit W
phase protection
OC1
[4] Overcurrent at
acceleration

Acceleration or
deceleration is too fast.

Grid voltage is too low.

VFD power is too low.

Load transients or is
abnormal.

Short-circuited to ground,
output phase loss.

There is strong external
interference.

Increase acceleration
/deceleration time.

Check the input power.

Adopt the VFD with a larger
power.

Check if the load is short
circuited (short circuited to
ground or between wires) or
stall occurs.

Check the output wiring.

Check if there is strong
interference.
OC2
[5] Overcurrent at
deceleration
OC3
[6] Overcurrent at
constant speed
OV1
[7] Overvoltage at
acceleration

The input voltage is
abnormal.

There is large energy
feedback.

Check the input power.

Check if the deceleration
time of the load is too short
or the motor starts during
the rotating, or dynamic
brake units needs to be
installed.
OV2
[8] Overvoltage at
deceleration
OV3
[9] Overvoltage at
constant speed
UV
[10] Bus
undervoltage fault

Grid voltage is too low.

Check the grid input power.
OL1 [11] Motor overload

Grid voltage is too low.

Rated motor current is set
improperly.

Motor stalls or load

Check grid voltage.

Reset rated motor current.

Check load and adjust
torque boost quantity