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Fault
Fault Descriptions
Name
Overload 2
Motor overload.
Software protection failure
CC (current clamp)
OV hardware error
GFF hardware error
OC hardware error
External Base Block.
(Refer to Pr. 08.07)
External Fault
Over-current during
acceleration
Over-current during
deceleration
Over-current during steady
state operation
Internal EEPROM can not be
programmed.
Internal EEPROM can not be
programmed.
Internal EEPROM can not be
read.
Internal EEPROM can not be
read.
1.
Reduce the motor load.
2.
Adjust the over-torque detection setting to an
appropriate setting (Pr.06.03 to Pr.06.05).
Return to the factory.
Return to the factory.
1.
When the external input terminal (B.B) is active,
the AC motor drive output will be turned off.
2.
Deactivate the external input terminal (B.B) to
operate the AC motor drive again.
1.
When multi-function input terminals (MI3-MI9)
are set to external fault, the AC motor drive
stops output U, V and W.
2.
Give RESET command after fault has been
cleared.
1.
Short-circuit at motor output: Check for possible
poor insulation at the output lines.
2.
Torque boost too high: Decrease the torque
compensation setting in Pr.07.02.
3.
Acceleration Time too short: Increase the
Acceleration Time.
4.
AC motor drive output power is too small:
Replace the AC motor drive with the next
higher power model.
1.
Short-circuit at motor output: Check for possible
poor insulation at the output line.
2.
Deceleration Time too short: Increase the
Deceleration Time.
3.
AC motor drive output power is too small:
Replace the AC motor drive with the next
higher power model.
1.
Short-circuit at motor output: Check for possible
poor insulation at the output line.
2.
Sudden increase in motor loading: Check for
possible motor stall.
3.
AC motor drive output power is too small:
Replace the AC motor drive with the next
higher power model.
Return to the factory.
Return to the factory.
1.
Press RESET key to set all parameters to
factory setting.
2.
Return to the factory.
1.
Press RESET key to set all parameters to
factory setting.
2.
Return to the factory.
English- 32
Corrective Actions
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