YASKAWA A1000 Technical Manual page 361

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.
Digital Operator Display
Er-08
Cause
Motor data entered during Auto-Tuning was
incorrect.
Drive-calculated values outside parameter setting
range or the tuning process took too long.
The load during rotational Auto-tuning was too high.
Digital Operator Display
Er-09
Cause
The motor did not accelerate for the specified
acceleration time.
Torque limit when motoring is too low (L7-01 and
L7-02).
The load during Rotational Auto-Tuning was too
high.
Digital Operator Display
Er-10
Cause
The encoder signal lines are not properly connected
to the drive.
Motor and PG direction are opposite.
The load pulled the motor in the opposite direction
of the speed reference and the torque exceeded
100%.
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
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.
Rated Slip 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.
Acceleration Error
• Increase the acceleration time (C1-01).
• Check if it is possible to disconnect the machine from the motor.
• Check the settings of parameters L7-01 and L7-02.
• Increase the setting.
• 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.
Motor Direction Error
Check and correct wiring to the PG encoder.
Check the motor speed monitor U1-05 while turning the motor manually in forward direction. If the sign displayed is negative,
change the setting of parameter F1-05.
Uncouple the motor from the load and repeat Auto-Tuning.
6.7 Auto-Tuning Fault Detection
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