YASKAWA U1000 iQpump Drive, Техническое руководство

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6.7 Auto-Tuning Fault Detection
Auto-Tuning faults in this section are displayed on the digital operator and will cause the motor to coast to a stop. Auto-Tuning
faults do not trigger a multi-function digital output set for fault or alarm output.
An End
o error on the digital operator display indicates Auto-Tuning has successfully completed with discrepancies in the
calculations. Restart Auto-Tuning after fixing the cause of the End o error.
The drive may be used in the application if no cause can be identified despite the existence of an End o error.
An Er o error indicates that Auto-Tuning has not completed successfully. Check for the cause of the error using the tables in
this section, and perform Auto-Tuning again after fixing the cause.
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Auto-Tuning Codes, Causes, and Possible Solutions
Table 6.17 Auto-Tuning Codes, Causes, and Possible Solutions
Digital Operator Display Error Name
End1
Excessive V/f Setting (detected only during Rotational Auto-Tuning and displayed after Auto-Tuning is
complete)
Cause Possible Solutions
The torque reference exceeded 20% during
Auto-Tuning.
• Prior to Auto-Tuning, verify the information on the motor nameplate.
• Enter proper values from motor nameplate to parameters T1-03 to T1-05 and repeat Auto-Tuning.
• If possible, disconnect the motor from the load and perform Auto-Tuning. If the load cannot be uncoupled,
use the current Auto-Tuning results.
The results from Auto-Tuning the no-load
current exceeded 80%.
Digital Operator Display Error Name
End2
Motor Iron-Core Saturation Coefficient (detected only during Rotational Auto-Tuning and displayed after
Auto-Tuning is complete)
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, assigning the iron-
core saturation coefficients (E2-07 and
E2-08) to temporary values.
• Check and correct faulty motor wiring.
• Disconnect the motor from machine and perform Rotational Auto-Tuning.
Digital Operator Display Error Name
End3 Rated Current Setting Alarm (displayed after Auto-Tuning is complete)
Cause Possible Solutions
The correct current rating printed on the
motor nameplate was not entered into
T1-04.
• Check the setting of parameter T1-04.
• Check the motor data and repeat Auto-Tuning.
Digital Operator Display Error Name
End4 Adjusted Slip Calculation Error
Cause Possible Solutions
The calculated slip is outside the allowable
range.
• Make sure the data entered for Auto-Tuning is correct.
• If possible, perform Rotational Auto-Tuning. If not possible, perform Stationary Auto-Tuning 2.
Digital Operator Display Error Name
End5 Resistance Tuning Error
Cause Possible Solutions
The calculated resistance value is outside
the allowable range.
• Double-check the data entered for the Auto-Tuning process.
• Check the motor and motor cable connection for faults.
Digital Operator Display Error Name
End6 Leakage Inductance Alarm
Cause Possible Solutions
A1-02 setting error.
• Double-check the data entered for the Auto-Tuning process.
• Check the setting of A1-02.
• Check the control mode and repeat Auto-Tuning.
6.7 Auto-Tuning Fault Detection
YASKAWA ELECTRIC SIEP C710636 04D U1000 Industrial MATRIX Drive Technical Manual 397
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Troubleshooting