151
Troubleshooting
5
5.5 Auto-Tuning Fault Detection
Motor data entered during Auto-
Tuning was incorrect.
• Enter the correct data.
• Restart Auto-Tuning and enter the correct information.
Motor output 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 output and no-load current
settings (T1-04 and E2-03) do
not match. Data required when
Auto-Tuning for OLV Control or
Stationary Auto-Tuning.
• Check the motor-rated current and no-load current.
• Correct the settings of parameters T1-04 and E2-03.
Base frequency and base motor
rotations (T1-05 and T1-07) do
not match.
Set T1-05 and T1-07 to the correct value.
LED Operator Display Error Name
Er-02 Minor Fault
Cause Possible Solutions
Motor data entered during Auto-
Tuning was incorrect.
• Enter the correct data.
• Restart Auto-Tuning and enter the correct information.
The wiring is faulty.
• Check the wiring and correct defective connections.
• Check around the machine.
• Check the load.
Load is too heavy.
LED 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.
LED Operator Display Error Name
Er-04 Line-to-Line Resistance Error
Cause Possible Solutions
Motor data entered during Auto-
Tuning was incorrect.
• Enter the correct data.
• Restart Auto-Tuning and enter the correct information.
Auto-Tuning did not complete
within designated time frame.
• Check and correct faulty motor wiring.
• Disconnect the motor from machine and perform Rotational Auto-Tuning.
Drive-calculated values outside
parameter setting range.
LED Operator Display Error Name
Er-05 No-Load Current Error
Cause Possible Solutions
Motor data entered during Auto-
Tuning was incorrect.
• Enter the correct data.
• Restart Auto-Tuning and enter the correct information.
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