Chapter 14 Fault Codes and DescriptionsC2000  Plus 
 
ID*  Display on LCD Keypad  Fault Name  Fault Descriptions 
40 
 
Auto-tuning error 
(AUE) 
Motor auto-tuning error 
Action and Reset 
Action condition  Hardware detection 
Action time  Act immediately 
Fault treatment parameter  N/A 
Reset method  Manual reset 
Reset condition  Reset immediately 
Record  Yes 
Cause  Corrective Actions 
Press “STOP” key during auto-
tuning 
Re-execute auto-tuning. 
Incorrect motor capacity (too large 
or too small) and parameter 
setting 
Check motor capacity and related parameters. 
Set the correct parameters, that is Pr. 01-01–Pr. 01-02. 
Set Pr.01-00 larger than motor rated frequency. 
Incorrect motor wiring  Check the wiring. 
Motor shaft lock  Remove the cause of motor shaft lock. 
The electromagnetic contactor is 
ON at output side (U/V/W) of the 
drive 
Make sure the electromagnetic valve is OFF. 
The load is too large. 
Reduce the load. 
Replace the motor with a larger capacity model. 
Accel./Decel. time is too short  Increase the setting values for Pr.01-12–Pr. 01-19 (Accel./Decel. time).