Overvoltage; Undervoltage Fault - INVT Goodrive200A Series Operation Manual

GD200A series VFD

8.6.3 Overvoltage

Check the load and
adjust

8.6.4 Undervoltage fault

OV fault
Check if the voltage range is in
the standard one or not ?
Yes
Check If UVW is short
circuited to to the earth and
the configuration of the output
side is right or not?
Yes
Check if the ACC/DEC
time is too short
No
Check if the load
Yes
motor is in abnormal
reverse running
No
If the it is the VFD fault,
please contact the
company
UV fault
If the voltage of the power
supply is in the standard range
No
Check if the air switch and
contactor on the inside is off or
abnormal or not
No
Check if there is big power
device in the same power supply
No
Check that if there is
powering off during the
running of the VFD
No
If the it is the VFD fault,
please contact INVT
No
Ensure the power supply
meets the need
Yes
Settle the short circuit
and confabulate rightly
Yes
Check if the ACC/DEC
time can be prolonged
No
Check if it
needs to use
the options
No
Adjust the braking
options and the resistor
Yes
Ensure the power supply
meet the need
Switch on the air switch
Yes
and contactor and settle
the abnormal
Yes
Adjust the power supply
Ensure the power off
Yes
reason and settle the
abnormal
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Fault tracking
Yes
Prolong the ACC/DEC
time
Yes
Add braking optionds