Cause : Output current has exceeded internal fault limit.

Check motor load.
Check acceleration times in parameter
group 22 Speed ref ramp.
Check motor and motor cable (including
phasing and delta/star connection).
Check that the start-up data in parameter
group 99 corresponds to the motor rating
plate.
Check that there are no power factor
correction capacitors or surge absorbers
in motor cable.
Check encoder cable (including
phasing).