INVT Goodrive300-01A-RT Series User Manual

Goodrive300-01A-RT series integrated machine Fault handling and product maintenance
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6 Fault handling and product maintenance
6.1 VFD faults and solutions
Fault
code
Fault type
Possible cause
Solution
OV1
Overvoltage at
acceleration
• 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
Overvoltage at
deceleration
OV3
Overvoltage at
constant speed
OC1
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
Overcurrent at
deceleration
OC3
Overcurrent at
constant speed
UV
Bus
undervoltage
fault
Grid voltage is too low.
Check the grid input power.
OL1
Motor overload
• Grid voltage is too low.
• Rated current of the motor is
set improperly.
• Motor stalls or load
transients.
• Check grid voltage.
• Reset rated current of the motor.
• Check load and adjust torque
boost quantity.
OL2
VFD overload
• Acceleration is too fast.
• The motor is restarted during
rotating.
• Grid voltage is too low.
• The load is too large.
• Increase acceleration time.
• Avoid restart after stop.
• Check grid voltage.
• Adopt the VFD with a larger
power.
• Select a proper motor.
SPI
Phase loss on
input side
Phase loss or fluctuation occurs
to input R, S and T.
• Check input power.
• Check installation wiring.

INVT Goodrive300-01A-RT Series Specifications

General

Brand	INVT
Model	Goodrive300-01A-RT Series
Category	Inverter
Language	English