Specifications
VFD‐G7 Series Frequency Inverter Operation ManualChapter 8 Troubleshooting
171
The drive can not charge,
CHARGE is OFF.
Seek service
The MCCB trips
after power-on
Between the inputs of the supply
have earth or shorted.
Troubleshoot the issue
Rectifier breakdown,power line
and motor line connect wrongly
Seek service
The motor is
standstill after
the drive running
The 3-phase outputs among U, V,
and W are unbalance.
Check if damaged or
obstructed
Set the parameters
correctly according to
the nameplate
Don’t have output voltage Seek service
The drive
display is
normal, after
power-on, the
MCCB of the
power trips after
operating
Between the phases of output
module have shorted
Seek service
Between the motor’s lines have
shorted or grounded
Troubleshoot the issue
The distance between the motor
and drive is far, Occasionally trips
Install output reactor