200 Series General Purpose Vector AC Drive Chapter 8 Troubleshooting
75
Phenomena
Possible reasons of fault
Actions
The drive doesn’t
display after
power-on
Drive's input supply is inconsistent with the
rated voltage
Check with a multi-meter and
troubleshoot the issue.
3-phase rectifier bridge blasted
Seek service
The drive cannot charge, CHARGE is OFF.
Seek service
The MCCB trips after
power-on
Earth connecting between input power supplys
or there is circuit short
Troubleshoot the issue
Rectifier breakdown, power and
Troubleshoot the issue
Rectifier breakdown, power and motor wires
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
No output voltage
Seek service
The drive display is
normal, after
power-on, the MCCB
of the power trips
after operating
Phases shorted between output modules
Seek service
Between the motor’s lines are shorted or
grounded
Troubleshoot the issue
The distance between the motor and
drive is far, Occasionally trips
Install output AC reactor