Goodrive300-01A series VFD for air compressor Fault information and troubleshooting
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6 Fault information and troubleshooting
6.1 VFD faults and solutions
Fault contents and solutions for Goodrive300-01A VFD are shown below.
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.
Inverter unit V phase
protection
Inverter unit W
phase protection
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.
Overvoltage at
deceleration
Overvoltage at
constant speed
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.
Overcurrent at
deceleration
Overcurrent at
constant speed
Check the grid input power.
• Grid voltage is too low.
• Rated motor current is set
improperly.
• Motor stalls or load
transients
• Check grid voltage.
• Reset rated motor current.
• Check load and adjust
torque boost quantity
• Acceleration is too fast.
• The motor is restarted
• Increase acceleration time.
• Restart the motor after stop.
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