YASKAWA A1000 Series Quick Start Manual page 114

5 Troubleshooting
Digital Operator Display
End6
Cause
The leakage inductance value that was
calculated is outside the allowable range.
Digital Operator Display
End7
Cause
The entered no-load current value was
outside the allowable range.
Auto-Tuning results were less than 5%
of the motor rated current.
Digital Operator Display
Er-01
Cause
Motor data or data entered during
Auto-Tuning was incorrect.
Motor output power and motor-rated
current settings (T1-02 and T1-04) do
not match.
Motor rated current and detected no-load
current are not consistent with another.
Base frequency and motor rated speed
(T1-05 and T1-07) do not match.
Digital Operator Display
Er-02
Cause
An alarm was triggered during Auto-
Tuning.
Digital Operator Display
Er-03
Cause
Auto-Tuning canceled by pressing STOP
button.
Digital Operator Display
Er-04
Cause
Motor data entered during Auto-Tuning
was incorrect.
Results from Auto-Tuning are outside
the parameter setting range or the tuning
process took too long.
Motor cable or cable connection faulty.
Digital Operator Display
Er-05
Cause
Motor data entered during Auto-Tuning
was incorrect.
Results from Auto-Tuning are outside
the parameter setting range or the tuning
process took too long.
The load during Rotational Auto-tuning
was too high.
114
Leakage Inductance Alarm
Double check the data that was entered for the Auto-Tuning process.
No-Load Current Alarm
Check and correct faulty motor wiring.
Double check the data that was entered for the Auto-Tuning process.
Motor Data Error
• 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.
• Check the drive and motor capacities.
• Correct the settings of parameters T1-02 and T1-04.
• Check the motor rated current and no-load current.
• Correct the settings of parameters T1-04 and E2-03.
• Set T1-05 and T1-07 to the correct value.
• Check if the correct pole number was entered to T1-06.
Minor Fault
Exit the Auto-Tuning menu, check the alarm code, remove the alarm cause, and repeat Auto-Tuning.
STOP Button Input
Auto-Tuning did not complete properly and will have to be performed again.
Line-to-Line Resistance Error
• 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.
Check and correct faulty motor wiring.
No-Load Current Error
• 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.
• Check and correct faulty motor wiring.
• Perform 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.
YASKAWA ELECTRIC TOEP C710616 21C YASKAWA AC Drive - A1000 Quick Start Guide
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