6.7 Auto-Tuning Fault Detection
YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual 283
6.7 Auto-Tuning Fault Detection
Auto-Tuning faults are shown below. When the following faults are detected, the fault is displayed on the digital operator
and the motor coasts to a stop. Auto-Tuning faults do not trigger an multi-function terminal set for fault or alarm output.
An End error indicates that although Auto-Tuning has completely successful, there is some discrepancy in the
calculations the drive made. If an End error occurs, check for what might be causing the error using the table below,
and perform Auto-Tuning again once the problem has been taken care of. If there appears to be no problem despite the
End error being displayed, go ahead and start the application.
◆ Auto-Tuning Codes, Causes, and Possible Solutions
Table 6.13 Auto-Tuning Codes, Causes, and Possible Solutions
Digital Operator Display Error Name
End1
Excessive V/f Setting (detected only during Rotational Auto-Tuning for V/f control (T1-01 = 3), 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.
• If possible, disconnect the motor from the load and perform Auto-Tuning. If the load cannot be uncoupled, simply use the Auto-
Tuning results as they are.
The results from Auto-Tuning the no-load current
exceeded 80%.
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
End4 Adjusted Slip Calculation Error
Cause Possible Solutions
The slip that was calculated is outside the allowable
range.
• Make sure the data entered for Auto-Tuning is correct.
Digital Operator Display Error Name
End5 Resistance Tuning Error
Cause Possible Solutions
The resistance value that was calculated is outside
the allowable range.
• Double check the data that was entered for the Auto-Tuning process.
• Check the motor and motor cable connection for faults.
Digital Operator Display Error Name
End7 No-Load Current Alarm
Cause Possible Solutions
The entered no-load current value was outside the
allowable range.
Check and correct faulty motor wiring.
Auto-Tuning results were less than 5% of the motor
rated current.
Double check the data that was entered for the Auto-Tuning process.
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.
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 Minor Fault
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.
SIEP_C710616_35.book 283 ページ ２０１５年１１月３０日 月曜日 午後２時２分
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