6.7 Auto-Tuning Fault Detection
YASKAWA ELECTRIC
SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual
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LED 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.
LED Operator Display
Error Name
Er-04
Line-to-Line Resistance Error
Cause
Possible Solutions
Motor data entered during Auto-Tuning
was incorrect.
• Motor data entered to T1 parameters does not match motor nameplate. Enter the correct data.
• Start Auto-Tuning over again 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.
LED Operator Display
Error Name
Er-05
No-Load Current Error
Cause
Possible Solutions
Motor data entered during Auto-Tuning
was incorrect.
• Motor data entered to T1 parameters does not match motor nameplate. 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.
LED Operator Display
Error Name
Er-08
Rated Slip Error
Cause
Possible Solutions
Motor data entered during Auto-Tuning
was incorrect.
• Motor data entered to T1 parameters does not match motor nameplate. 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.
LED Operator Display
Error Name
Er-09
Acceleration Error (detected only during Rotational Auto-Tuning)
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.
LED Operator Display
Error Name
Er-11
Motor Speed Fault (detected only when Auto-Tuning is enabled)
Cause
Possible Solutions
Torque reference is too high. (Enabled in
OLV only.)
• Increase the acceleration time (C1-01).
• Disconnect the machine from the motor, if possible.
