6.7 Auto-Tuning Fault Detection
YASKAWA ELECTRIC
SIEP C710636 02B YASKAWA U1000 Technical Manual
377
T
rou
bl
es
hoot
ing
6
Motor rated 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.
Digital Operator Display
Error Name
Er-09
Acceleration Error
Cause
Possible Solutions
The motor did not accelerate for the specified
acceleration time.
• Increase the acceleration time (C1-01).
• Check if it is possible to disconnect the machine from the motor.
Torque limit when motoring is too low (L7-01 and
L7-02).
• Check the settings of parameters L7-01 and L7-02.
• Increase the setting.
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-10
Motor Direction Error
Cause
Possible Solutions
The encoder signal lines are not properly connected
to the drive.
Check and correct wiring to the PG encoder.
Motor and PG direction are opposite.
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.
The load pulled the motor in the opposite direction
of the speed reference and the torque exceeded
100%.
Uncouple the motor from the load and repeat Auto-Tuning.
Digital Operator Display
Error Name
Er-11
Motor Speed Error
Cause
Possible Solutions
Torque reference is too high.
• Increase the acceleration time 1 (C1-01).
• Disconnect the machine from the motor, if possible.
SIEP_C710636_02B_1_0.book 377 ページ 2015年11月25日 水曜日 午後4時56分