8 Troubleshooting
YASKAWA Europe TOEP C710616 92D AC Drive L1000H Quick Start Guide EN 41
Auto-Tuning Errors
Digital Operator Cause Corrective Action
(Er-01)
Motor Data Error
The input motor data are not valid. (e.g. the base frequency
and base speed do not fit).
Re-enter the data and repeat Auto-Tuning.
(Er-02)
Alarm
• The wiring is faulty.
• Drive was in baseblock condition or the Safe Disable
Input were open during Auto-Tuning.
Check the wiring.
(Er-03)
STOP Key Pressed
The STOP key was pressed and Auto-Tuning was canceled.
Repeat the Auto-Tuning.
(Er-04)
Line-to-Line Resistance Fault
• Wrong input data.
• Auto tuning exceeded the given time frame.
• Calculated values out of range.
• Check the input data.
• Check the wiring.
• Re-enter the data and repeat the Auto-Tuning.
(Er-05)
No-Load Current Error
• Wrong input data.
• Auto tuning exceeded the given time frame.
• Calculated values out of range.
(Er-08)
Rated Slip Error
• Wrong input data.
• Auto tuning exceeded the given time frame.
• Calculated values out of range.
(Er-09)
Acceleration Error
The motor did not accelerate following the specified
acceleration ramp.
• Lengthen the acceleration ramp. Increase C1-01 if set in s,
decrease C1-01 if set in m/s
2
.
• Check the torque limits L7-01 and L7-02.
(Er-11)
Motor Speed Error
The torque reference was too high.
• Lengthen the acceleration ramp. Increase C1-01.
• If possible, disconnect the load.
(Er-12)
Current Detection Error
• One or all output phases are lost.
• Current is either too low or exceeds the drives rating.
• The current sensors are faulty.
• Check the wiring. Make sure the motor contactor is closed
during tuning.
• Make sure, that the drive rating fits to the motor.
• Check the load. (Auto-Tuning should have been performed
without the load connected or with very low load.)
• Replace the drive.
(Er-13)
Leakage Inductance Error
Drive was unable to complete tuning for leakage inductance
within 300 s.
• Check all wiring and correct any mistakes.
• Double check the motor rated current value that was entered
to T1-04 for Auto-Tuning.
• Check the motor rated current value written on the motor
nameplate and enter the correct value.
(End1)
Excessive V/f Setting
• The torque reference exceeded 20% during Auto-Tuning.
• The calculated no-load current is above 80% of the motor
rated current.
• Check the V/f pattern setting.
• Perform Auto-Tuning without the load connected.
• Check the input data and repeat Auto-Tuning.
(End2)
Motor Iron-Core Saturation Coefficient
• Calculated core saturation values out of range.
• Incorrect data was entered.
• Check the input data.
• Check the motor wiring.
• Perform Auto-Tuning without load connected.
(End3) Rated Current Setting Alarm Check the input data and repeat tuning.
(End4)
Adjusted Slip Calculation Error
The slip that was calculated is outside the allowable range.
• Make sure the data entered for Auto-Tuning is correct.
• Execute Rotational Auto-Tuning instead. If not possible, try
Stationary Auto-Tuning 2.
(End5)
Resistance Tuning Error
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.
(End6)
Leakage Inductance Alarm
• The leakage inductance value that was calculated is
outside the allowable range.
• Check the control mode and repeat Auto-Tuning.
• Double check the data that was entered for the Auto-Tuning
process.
(End7)
No-Load Current Alarm
• The entered no-load current value was outside the
allowable range.
• Auto-Tuning results were less than 5% of the motor rated
current.
• Check and correct faulty motor wiring.
• Double check the data that was entered for the Auto-Tuning
process.
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