Yaskawa iQpump1000 AC Drive Quick Start - Manual (Page 279)

HOA Keypad Display Error Name
End7 No-Load Current Alarm
Cause Possible Solutions
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.
HOA Keypad 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.
• 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.
HOA Keypad 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.
HOA Keypad Display Error Name
Er-03 STOP Button Input
Cause Possible Solutions
Auto-Tuning canceled by pressing STOP button. Auto-Tuning did not complete properly. Restart Auto-Tuning.
HOA Keypad 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.
Faulty motor cable or cable connection.
HOA Keypad 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 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.
5.5 Auto-Tuning Fault Detection
YASKAWA TOEP YAIP1W 01B YASKAWA AC Drive - iQpump1000 Quick Start Guide 279
5
Troubleshooting