Operating instructions

58
SV01L
Troubleshooting and Diagnostics
Fault Cause Remedy
(1)
O
Output fault:
Transistor fault
Output short circuit Check motor/motor cable
Acceleration time too short Increase P104, P125
Severe motor overload, due to:
• Mechanical problem
• Drive/motor too small for application
• Check machine / system
• Verify drive/motor are proper size for
application
Boost values too high Decrease P168, P169
Excessive capacitive charging current of
the motor cable
• Use shorter motor cables with lower charging
current
• Use low capacitance motor cables
• Install reactor between motor and drive.
Failed output transistor Contact factory technical support
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
P
Motor Overload fault Excessive motor load for too long • Verify proper setting of P108
• Verify drive and motor are proper size for
application
Flying Restart fault Controller was unable to synchronize with
the motor during restart attempt; (P110
= 5 or 6)
Check motor / load
Single-Phase fault A mains phase has been lost Check mains voltage
U
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 (P110).
(1) The drive can only be restarted if the error message has been reset.