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Fault Cause
Remedy
(1)
f.OF1
Output fault: Ground
fault
Grounded motor phase Check motor and motor cable
Excessive capacitive charging
current of the motor cable
Use shorter motor cables with
lower charging current
f.PF
Motor Overload fault Excessive motor load for too long • Verify proper setting of P108
• Verify drive and motor are
proper size for application
f.rF
Flying Restart fault Controller was unable to
synchronize with the motor during
restart attempt; (P110 = 5 or 6)
Check motor / load
f.SF
Single-Phase fault A mains phase has been lost Check mains voltage
f.UF
Start fault Start command was present when
power was applied (P110 = 0 or 2).
• Must wait at least 2 seconds
after power-up to apply Start
command
• Consider alternate starting
method (see P110).
(1) The drive can only be restarted if the error message has been reset.
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