YASKAWA Lift Inverter L1000V, Technical Manual, Page: 183 / 282

6.6 Auto-Tuning Fault Detection
YASKAWA EUROPE SIEP YASKAWA AC Drive L1000V Technical Manual 183
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6.6 Auto-Tuning Fault Detection
When the Auto-Tuning faults shown below are detected, the fault is displayed on the digital operator and the motor
coasts to a stop. Auto-Tuning faults do not trigger a multi-function terminal set for fault or alarm output.
An End error indicates that Auto-Tuning has successfully completed with discrepancies in the calculations. If an End
error occurs, check for the cause of the error using the table below, and perform Auto-Tuning again after fixing the
problem. Start the application if no problem can be diagnosed despite the existence of the End error.
An Er- error indicates that Auto-Tuning has not successfully completed. If an Er- error occurs, check for the cause of
the error using the table below, and perform Auto-Tuning again after fixing the problem.
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Auto-Tuning Codes, Causes, and Possible Solutions
Table 6.10 Auto-Tuning Codes, Causes, and Possible Solutions
Digital Operator Display Error Name
End1 Excessive V/f Setting (detected only during Rotational Auto-Tuning, and displayed after Auto-Tuning is complete)
Cause Possible Solutions
The torque reference exceeded 20% during
Auto-Tuning.
• Before Auto-Tuning the drive, verify the information written on the motor nameplate and enter that data to T1-03 through T1-05.
• Enter proper information to parameters T1-03 to T1-05 and repeat Auto-Tuning.
The results from Auto-Tuning the no-load current
exceeded 80%.
Digital Operator Display Error Name
End2 Motor Iron-Core Saturation Coefficient (detected only during Rotational Auto-Tuning and displayed after Auto-Tuning is complete)
Cause Possible Solutions
Motor data entered during Auto-Tuning was
incorrect. • Make sure the data entered to the T1 parameters match the information written on the motor nameplate.
• Restart Auto-Tuning and enter the correct information.
Results from Auto-Tuning are outside the parameter
setting range, assigning the iron-core saturation
coefficient (E2-07, E2-08) a temporary value.
Check and correct faulty motor wiring.
Digital Operator Display Error Name
End3 Rated Current Setting Alarm (displayed after Auto-Tuning is complete)
Cause Possible Solutions
The correct current rating printed on the nameplate
was not entered into T1-04. • Check the setting of parameter T1-04.
• Check the motor data and repeat Auto-Tuning.
Digital Operator Display Error Name
Er-01 Motor Data Error
Cause Possible Solutions
Motor data or data entered during Auto-Tuning was
incorrect. • Check that the motor data entered to T1 parameters matches motor nameplate input before Auto-Tuning.
• Start Auto-Tuning over again and enter the correct information.
Motor output power and motor-rated current settings
(T1-02 and T1-04) do not match. • Check the drive and motor capacities.
• Correct the settings of parameters T1-02 and T1-04.
Motor rated current and detected no-load current are
not consistent with another. • Check the motor rated current and no-load current.
• Correct the settings of parameters T1-04 and E2-03.
Base frequency and motor rated speed (T1-05 and
T1-07) do not match. • Set T1-05 and T1-07 to the correct value.
• Check if the correct pole number was entered to T1-06.
Digital Operator Display Error Name
Er-02 Alarm
Cause Possible Solutions
An alarm was triggered during Auto-Tuning. Exit the Auto-Tuning menu, check the alarm code, remove the alarm cause, and repeat Auto-Tuning.
Digital Operator Display Error Name
Er-03 STOP Button Input
Cause Possible Solutions
Auto-Tuning canceled by pressing STOP button. Auto-Tuning did not complete properly and will have to be performed again.
Digital Operator Display Error Name
Er-04 Line-to-Line Resistance Error
Cause Possible Solutions
Motor data entered during Auto-Tuning was
incorrect. • Make sure the data entered to the T1 parameters match the information written on the motor nameplate.
• Restart Auto-Tuning and enter the correct information.
Results from Auto-Tuning are outside the parameter
setting range or the tuning process took too long.
Check and correct faulty motor wiring.
Motor cable or cable connection faulty.