EN-23
Autotuning Faults
Autotuning faults are shown below. When the following faults are detected, the fault is displayed on
the digital operator and the motor coasts to stop. No fault or alarm outputs will be operated.
Multi-function Input Selection Error
One of the following errors has been made in the multi-
function input (H1-01 to H1-05) settings:
• Duplicate functions were selected.
• UP/DOWN command (setting 10 and 11) were not
set simultaneously.
• The UP/DOWN commands (10 and 11) and Accel/
decel ramp hold (A) were set at the same time.
• More than one of the Speed Search inputs (61, 62,
64) were set simoultaneosly.
• External Baseblock NO (8) and External Baseblock
NC (9) were set at the same time.
• The UP/DOWN commands (10 and 11) were
selected while PI Control (b5-01) was enabled.
Verify the parameter settings in H1-
• The Emergency Stop Command NO and NC were
set at the same time.
• Motor Preheat (60) and Motor Preheat 2 (80) were
set simultaneously.
• Emergency Override FWD (81) and Emergency
Override REV (82) are set simultaneously.
Verify the parameter settings in H1-
RUN/Reference Command Selection Error
The Reference Source Selection b1-01 and/or the RUN
Source Selection parameter b1-02 are set to 3 (option
board) but no option board is installed.
• Verify that the board is installed. Remove the power
supply and re-install the option board again
• Recheck the setting of b1-01 and b1-02.
PI Control Setup Error
The following settings have been made at the same
time.
• b5-01 (PI Control Mode Selection) has been set to a
value different from 0.
• b5-15 (PI Sleep Function Operation Level) has been
set to a value different from 0.
• b1-03 (Stopping Method Selection) has been set to 2
or 3.
Check the settings of parameters b5-01, b5-15 and
b1-03.
V/f Parameter Setting Error
Check parameters (E1-
). A frequency/voltage value
may be set higher than the maximum frequency/voltage.
Display
Meaning
Corrective Actions
Motor data fault
• Check the input data.
• Check the Inverter and motor capacity.
• Check the motor rated current setting.
Alarm
• Check the input data.
• Check wiring and the machine.
• Check the load.
STOP key input
-
Line-to-Line Resistance Fault
• Autotuning could not be completetd in the speci-
fied time
• The autotuning result is outside the parameter set-
ting range
• Check the input data.
• Check the motor wiring.
Rated Current Setting Alarm
Displayed after auto-tuning is complete
During auto-tuning, the measured value of motor
rated current (E2-01) was higher than the set value.
Check the motor rated current value.
Display
Meaning
Corrective Actions
