Auto-Tuning Fault Detection; Auto-Tuning Fault Detection; Auto-Tuning Codes, Causes, And Possible Solutions - YASKAWA P1000 Technical Manual

6.7 Auto-Tuning Fault Detection

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 Endo 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 Endo error.
The drive may be used in the application if no cause can be identified despite the existence of an Endo error.
An Ero 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

Digital Operator Display
Cause
The torque reference exceeded 20% during
Auto-Tuning.
The results from Auto-Tuning the no-load
current exceeded 80%.
Digital Operator Display
Cause
Motor data entered during Auto-Tuning
was incorrect.
Results from Auto-Tuning are outside the
parameter setting range, assigning the iron-
core saturation coefficients (E2-07 and
E2-08) to temporary values.
Digital Operator Display
Cause
The correct current rating printed on the
motor nameplate was not entered into
T1-04.
Digital Operator Display
Cause
The calculated slip is outside the allowable
range.
Digital Operator Display
Cause
The calculated resistance value is outside
the allowable range.
Digital Operator Display
Cause
The calculated leakage inductance value is
outside the allowable range.
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Table 6.12 Auto-Tuning Codes, Causes, and Possible Solutions
Excessive V/f Setting (detected only during Rotational Auto-Tuning and displayed after Auto-Tuning is
End1
complete)
• Prior to Auto-Tuning, verify the information on the motor nameplate.
• Enter proper values from motor nameplate to parameters T1-02 and T1-04 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.
Motor Iron-Core Saturation Coefficient (detected only during Rotational Auto-Tuning and displayed after
End2
Auto-Tuning is complete)
• 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.
• Check and correct faulty motor wiring.
• Disconnect the motor from machine and perform Rotational Auto-Tuning.
End3 Rated Current Setting Alarm (displayed after Auto-Tuning is complete)
• Check the setting of parameter T1-04.
• Check the motor data and repeat Auto-Tuning.
End4 Adjusted Slip Calculation Error
• Make sure the data entered for Auto-Tuning is correct.
• If possible, perform Rotational Auto-Tuning. If not possible, perform Stationary Auto-Tuning 2.
End5 Resistance Tuning Error
• Double-check the data entered for the Auto-Tuning process.
• Check the motor and motor cable connection for faults.
End6 Leakage Inductance Alarm
Double-check the data entered for the Auto-Tuning process.
Error Name
Possible Solutions
Error Name
Possible Solutions
Error Name
Possible Solutions
Error Name
Possible Solutions
Error Name
Possible Solutions
Error Name
Possible Solutions
YASKAWA SIEP YAIP1U 01C AC Drive - P1000 Technical Manual