YASKAWA AC Drive-A1000 - Page 329

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.
Motor rated current and detected no-load
current are not consistent with another.
• Check the motor rated current and no-load current.
• Correct the settings of parameters T1-04 and E2-03.
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.
Digital Operator Display Error Name
Er-04 Line-to-Line Resistance Error
Cause Possible Solutions
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.
Results from Auto-Tuning are outside the
parameter setting range or the tuning
process took too long.
Check and correct faulty motor wiring.
Motor cable or cable connection faulty.
Digital Operator Display Error Name
Er-05 No-Load Current Error
Cause Possible Solutions
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.
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.
The load during Rotational Auto-tuning
was too high.
• 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.
Digital Operator Display Error Name
Er-08 Rated Slip Error
Cause Possible Solutions
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.
Drive-calculated values outside parameter
setting range or the tuning process took too
long.
• Check and correct faulty motor wiring.
• Perform Rotational Auto-Tuning.
The load during rotational Auto-tuning was
too high.
• 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.
6.7 Auto-Tuning Fault Detection
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
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Troubleshooting