YASKAWA V1000 Series

6.7 Auto-Tuning Fault Detection
Auto-Tuning faults are shown below. When the following faults are detected, the fault is displayed on the Digital Operator and the motor coasts to a stop.
No fault or alarm outputs will occur
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Auto-Tuning Codes, Causes, and Possible Solutions
Table 6.11 Auto-Tuning Codes, Causes, and Possible Solutions
LED Operator Display Error Name
Er-01 Motor Data Error
Cause Possible Solutions
Motor data or data entered during Auto-Tuning
incorrect.
• Check that the motor data entered to the T1 parameters match the information written on the motor nameplate input before Auto-Tuning.
• Start Auto-Tuning over again and enter the correct information.
Motor output 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 output and no-load current settings (T1-04 and
E2-03) do not match.This data is required only when
Auto-Tuning for Open Loop Vector Control or when
performing Stationary Auto-Tuning.
• Check the motor-rated current and no-load current.
• Correct the settings of parameters T1-04 and E2-03.
Base frequency and base motor rotations (T1-05 and
T1-07) do not match.
Set T1-05 and T1-07 to the correct value.
LED Operator Display Error Name
Er-02 Minor Fault
Cause Possible Solutions
Motor data entered during Auto-Tuning was incorrect.
• Motor data entered to the T1 parameters does not match the information written on the motor nameplate. Enter the correct data.
• Start Auto-Tuning over again and enter the correct information.
The wiring is faulty. • Check the wiring and correct defective connections.
• Check around the machine.
• Check the load.
Load is too heavy.
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 the T1 parameters does not match the information written on the 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 the T1 parameters does not match the information written on the 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 the T1 parameters does not match the information written on the 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.
LED Operator Display Error Name
Er-12 Current Detection Error
6.7 Auto-Tuning Fault Detection
YASKAWA ELECTRIC SIEP C710606 18A YASKAWA AC Drive – V1000 Technical Manual (Preliminary)
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Troubleshooting