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.
Er-02
Minor Fault
Cause
Possible Solutions
Incorrect motor data entered
during Auto-Tuning.
• Motor data entered to the T1 parameters does not match the information written
on the motor nameplate. Enter the correct data.
• Start Auto-Tuning over again 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.
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.
Er-04
Line-to-Line Resistance Error
Cause
Possible Solutions
Motor data entered during
Auto-Tuning was incorrect.
• Motor data entered to T1 parameters does not match motor nameplate. Enter the
correct data.
• Start Auto-Tuning over again 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.
Er-05
No-Load Current Error
Cause
Possible Solutions
Motor data entered during
Auto-Tuning was incorrect.
• Motor data entered to T1 parameters does not match motor nameplate. 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.
Er-08
Rated Slip Error
5.5 Auto-Tuning Fault Detection
YASKAWA ELECTRIC TOEP C710606 47A YASKAWA AC Drive – V1000 Quick Start Guide
151
5
Troubleshooting
