Fault Information And Solution; Faults And Countermeasures For Integrated Machine - INVT Goodrive300-21 Series Operation Manual

Goodrive300-21 integrated machine for air compressor

6.1. Faults and countermeasures for integrated machine

Table 6.1 Faults and countermeasures for Goodrive300-21 air compressor integrated machine
Fault code Fault type
Inverter unit Ph-U
OUt1
protection
Inverter unit Ph-V
OUt2
protection
Inverter unit Ph-W
OUt3
protection
Over-voltage at
OV1
acceleration
Over-voltage at
OV2
deceleration
Over-voltage at
OV3 constant speed
running
Over-current at
OC1
acceleration
Over-current at
OC2
deceleration
Over-current at
OC3 constant speed
running
DC bus
UV
Under-voltage
OL1 Motor overload

6. Fault information and solution

Possible cause
 The acceleration is too fast
 IGBT of this phase is damaged
internally
 Mis-action caused by
interference
 The connection of the driving
wires is not good,
 Grounding short circuit occur
 The input voltage is abnormal
 There is large energy feedback
 The acceleration or
deceleration is too fast
 The voltage of the grid is too
low
 The power of the inverter 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 voltage of the power grid is
too low
 The voltage of the grid is too
low
 The motor setting rated current
is incorrect
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60
Fault information and solution
What to do
 Increase Acc time
 Replace the power unit
 Check the driving wires
 Inspect peripheral
equipment and eliminate
interference
 Check the input power
 Check if the DEC time of
the load is too short or the
inverter starts during the
rotation of the motor or it
needs to add the dynamic
braking components
 Increase the ACC/DEC
time
 Check the input power
 Select the inverter 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 input power of
the grid
 Check the voltage of the
grid
 Reset the rated current of
the motor