6 Troubleshooting
- 76 -
Fault Name
Operating
Panel
Display
Cause
Possible Solution
Overvoltage
during
deceleration
E 06.00
The overvoltage
stall prevention
parameters are set
improperly.
Ensure that the voltage limit function is
enabled (F3-23 = 1).
The setting of F3-22 (Voltage limit) is too large.
Adjust it between 700 V and 770 V.
The setting of F3-24 (Frequency gain for
voltage limit) is too small. Adjust it between 30
and 50.
An external force
drives the motor
during acceleration.
Cancel the external force or install a braking
resistor.
The setting of F3-26 (Frequency rise threshold
during voltage limit) is too small. Adjust it
between 5 Hz and 15 Hz.
Deceleration time is
too short.
Increase deceleration time.
The braking unit and
braking resistor are
not installed.
Install the braking unit and braking resistor.
Overvoltage at
constant speed
E 07.00
The overvoltage
stall prevention
parameters are set
improperly.
Ensure that the voltage limit function is
enabled (F3-23 = 1).
The setting of F3-22 (Voltage limit) is too large.
Adjust it between 700 V and 770 V.
The setting of F3-24 (Frequency gain for
voltage limit) is too small. Adjust it between 30
and 50.
An external force
drives the motor
during acceleration.
Cancel the external force or install a braking
resistor.
The setting of F3-26 (Frequency rise threshold
during voltage limit) is too small. Adjust it
between 5 Hz and 15 Hz.
Undervoltage
E 09.00
Instantaneous
power failure occurs.
Enable the power dip ride through function
(F9-59 ≠ 0).
The drive's input
voltage is not within
the permissible
range.
Adjust the voltage to the normal range.
The bus voltage is
abnormal.
Contact the agent or Inovance.
The rectifier bridge,
the drive board, or
the control board
are abnormal.
Contact the agent or Inovance.
