
Digital Operator Display
Fault Name
Er-03
STOP Button Input
Cause
Possible Solution
Auto-Tuning canceled by pressing STOP
button.
Auto-Tuning did not complete properly and will have to be performed again.
Digital Operator Display
Fault Name
Er-04
Line-to-Line Resistance Error
Cause
Possible Solution
Motor data entered during Auto-Tuning was
incorrect.
• Enter the correct data.
• Restart Auto-Tuning and enter the correct information.
Auto-Tuning did not complete within
designated time frame.
• Check and correct faulty motor wiring.
• Disconnect the motor from machine and perform Rotational Auto-Tuning.
Drive-calculated values outside parameter
setting range.
Digital Operator Display
Fault Name
Er-05
No-Load Current Error
Cause
Possible Solution
Motor data entered during Auto-Tuning was
incorrect.
• Enter the correct data.
• Restart Auto-Tuning and enter the correct information.
Auto-Tuning did not complete within
designated time frame.
• Check and correct faulty motor wiring.
• Disconnect the motor from machine and perform Rotational Auto-Tuning.
Drive-calculated values outside parameter
setting range.
Digital Operator Display
Fault Name
Er-08
Rated Slip Error
Cause
Possible Solution
Motor data entered during Auto-Tuning was
incorrect.
• Enter the correct data.
• Restart Auto-Tuning and enter the correct information.
Auto-Tuning did not complete within
designated time frame.
• Check and correct faulty motor wiring.
• Disconnect the motor from machine and perform Auto-Tuning.
Values calculated by the drive are outside the
allowable parameter setting ranges.
Digital Operator Display
Fault Name
Er-09
Acceleration Error (detected only during Rotational Auto-Tuning)
Cause
Possible Solution
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.
Digital Operator Display
Fault Name
Er-11
Motor Speed Fault (detected only when Auto-Tuning is enabled)
Cause
Possible Solution
Torque reference is too high. (Enabled in OLV
only.)
• Increase the acceleration time in C1-01.
• Disconnect the machine from the motor, if possible.
Digital Operator Display
Fault Name
Er-12
Current Detection Error
Cause
Possible Solution
One of the motor phases is missing
(U/T1, V/T2, W/T3).
Check motor wiring and correct problems.
6.7 Auto-Tuning Fault Detection
296
YASKAWA ELECTRIC SIEP C710606 18F YASKAWA AC Drive – V1000 Technical Manual