YASKAWA P1000

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Auto-Tuning Errors
Digital
Operator
Cause Possible Solution
End1
Excessive V/f Setting
• The torque reference exceeded 20% during Auto-Tuning.
• The results from Auto-Tuning the no-load current exceeded 80%.
• Prior to Auto-Tuning, verify the information on the motor
nameplate.
• Enter proper values from motor nameplate to parameters T1-02
and T1-04 and repeat Auto-Tuning.
• If possible, disconnect the motor from the load and perform
Auto-Tuning. If the load cannot be uncoupled, use the current
Auto-Tuning results.
End2
Motor iron-core saturation alarm.
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.
End3
Rated current alarm
The correct current rating printed on the motor nameplate was not
entered into T1-04.
• Check the setting of parameter T1-04.
• Check the motor data and repeat Auto-Tuning.
End4
Adjusted Slip Calculation Error
The calculated slip is outside the allowable range.
• Make sure the data entered for Auto-Tuning is correct.
• If possible, perform Rotational Auto-Tuning. If not possible,
perform Stationary Auto-Tuning 2.
End5
Resistance Tuning Error
The calculated slip is outside the allowable range.
• Double-check the data entered for the Auto-Tuning process.
• Check the motor and motor cable connection for faults.
End6
Leakage Inductance Alarm
The calculated leakage inductance value is outside the allowable
range.
Double-check the data entered for the Auto-Tuning process.
End7
No-Load Current Alarm
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 entered for the Auto-Tuning process.
Er-01
Motor data error
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.
• Restart Auto-Tuning 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 inconsistent.
• Check the motor rated current and no-load current.
• Correct the settings of parameters T1-04 and E2-03.
Er-02
Minor Fault
An alarm was triggered during Auto-Tuning.
Exit the Auto-Tuning menu, check the alarm code, remove the
alarm cause, and repeat Auto-Tuning.
Er-03 Auto-Tuning canceled by pressing STOP button. Auto-Tuning did not complete properly. Restart Auto-Tuning.
Er-04
Line-to-Line Resistance Error
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.
Faulty motor cable or cable connection. Check and correct faulty motor wiring.
Er-05
Er-08
No-Load Current Error/Rated Slip Error
Motor data entered during Auto-Tuning was incorrect.
Results from Auto-Tuning are outside the parameter setting range
or the tuning process took too long.
• 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.
• Perform Rotational Auto-Tuning.
Er-09
Acceleration Error
The motor did not accelerate for the specified acceleration time.
• Increase the acceleration time (C1-01).
• Disconnect the machine from the motor if possible.
The load was too high during Rotational Auto-Tuning.
• Disconnect the motor from machine and restart Auto-Tuning. If
motor and load cannot be uncoupled make sure the load is lower
than 30%.
• If a mechanical brake is installed, make sure it is fully lifted
during tuning.
Er-11
Motor Speed Fault
Torque reference is too high.
• Increase the acceleration time (C1-01).
• Disconnect the machine from the motor if possible.
i.7 Troubleshooting
YASKAWA ELECTRIC TOEP YAIP1U 03B YASKAWA AC Drive – P1000 Safety Precautions
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