Overcurrent - INVT Goodrive3000 Series Operation Manual

Goodrive3000 series medium voltage VFD

6.3.8 Overcurrent

Yes
Decrease the torque
boost
No
Adjust the V/F curve
Set the
Yes
V/F vibration control
parameters properly
Yes
Whether the torque
boost is too high?
No
Whether the multi-
dots V/F curve is set
properly?
Yes
Whether unusual
vibration occurs on
the motor?
No
If it is a VFD fault,
contact our company
-188-
Overcurrent
Whether UVW on the
output side of the VFD is
short to ground? Remove
the motor cable and
checked whether it is
connected to earth.
No
Yes
Whether the motor is
short to ground?
No
Whether the motor type and
parameters are set correctly?
Yes
Whether parameter
autotuning is
performed?
Yes
Whether the
Yes
ACC/DEC time is too
short?
No
Yes
Whether the load is
too heavy?
No
Yes
Whether there are
interference sources?
No
Whether it is V/F
control?
No
Whether the ASR and ACR
parameters are set properly?
Yes
If it is a VFD fault,
contact our company
Goodrive3000 inverter
Rectify the short-to-
Yes ground fault, and
configure the motor
cables properly
Replace the motor
No
Set the motor type and
parameters correctly
No
Perform parameter
autotuning
Adjust the ACC/DEC
time
Reduce the load and
increase the capacity of
the VFD
Remove the
interference sources
No
Set the ASR and ACR
parameters properly