Inovance MD800 Series - Page 556

Fault Name
Display
Possible Cause Solution
Fault Type
Overvoltage at
constant speed
E07.00
The overvoltage stall
suppression parameters are
set improperly.
Ensure that the overvoltage stall suppression
function (F3-23) is enabled.
The overvoltage stall suppression voltage (F3-22) is
too high. Adjust it to a value between 700 V and 770
V.
The overvoltage stall suppression frequency gain (F3-
24) is too low. Adjust it to a value between 30 and 50.
Axis fault
An external force drives the
motor during running.
Cancel the external force or install a braking resistor.
The maximum rise frequency during overvoltage stall
suppression (F3-26) is too low. Adjust it to a value
between 5 Hz and 15 Hz when an external force is
applied.
E07.01
The bus voltage of the single-
phase AC drive is too high.
Check whether the bus voltage of the single-phase
AC drive exceeds 410.0 V.
Axis fault
Undervoltage
E09.00
An instantaneous power
failure occurs.
Enable the power dip ride-through function (F9-63).
Axis fault
The input voltage of the AC
drive is beyond the specified
range.
Adjust the input voltage of the AC drive to the normal
range.
The bus voltage is abnormal. Contact the technical support personnel.
The power supply unit, the
drive board of the drive unit,
or the control board of the
drive unit is abnormal.
Contact the technical support personnel.
AC drive overload
E10.00
The load is too heavy or
motor stalling occurs.
Reduce the load and check the motor and
mechanical conditions.
Axis fault
The AC drive power rating is
too low.
Replace the AC drive with one of higher power rating.
The SVC control mode is
adopted, and motor auto-
tuning is not performed.
Set the motor parameters according to the motor
nameplate and perform motor auto-tuning.
The control mode is V/f
control.
Reduce the torque boost (F3-01) reference in
decrements of 1.0%, or set it to 0 (auto torque
boost).
Motor overload
E11.00
F9-01 (motor overload
protection gain) is set
improperly.
Set F9-01 correctly. Increase its value to prolong the
motor overload time.
Axis fault
The load is too heavy or
motor stalling occurs.
Reduce the load and check the motor and
mechanical conditions.
List of Fault Codes
-555-