Auto-Tuning Errors - YASKAWA GA700 Technical Manual

6.7

Auto-Tuning Errors

This table gives information about errors detected during Auto-Tuning. If the drive detects an Auto-Tuning error,
the keypad will show the error and the motor will coast to stop. The drive will not send notification signals for
faults and alarms when Auto-Tuning errors occur.
Two types of Auto-Tuning errors are: Endx and Erx. Endx identifies that Auto-Tuning has successfully completed
with calculation errors. Find and repair the cause of the error and do Auto-Tuning again, or set the motor
parameters manually. You can use the drive in the application if you cannot find the cause of the Endx error.
Erx identifies that Auto-Tuning was not successful. Find and repair the cause of the error and do Auto-Tuning
again.
Code Name
End1 Excessive Rated Voltage
Setting
Code Name
End2 Iron Core Saturation
Coefficient
Code Name
End3 Rated Current Setting
Alarm
Code Name
End4 Adjusted Slip Calculation
Error
Code Name
End5 Resistance Tuning Error
Code Name
End6 Leakage Inductance Alarm
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
Causes
The torque reference was more than
20% during Auto-Tuning or the no-load
current that was measured after Auto-
Tuning is more than 80%.
Causes
The motor nameplate data entered
during Auto-Tuning is incorrect.
Auto-Tuning results were not in the
applicable parameter setting range, and
E2-07 or E2-08 [Motor Saturation
Coefficient 2] have temporary values.
Causes
The rated current value is incorrect.
Causes
The Auto-Tuning results were not in the
applicable parameter setting range.
The motor rated slip that was measured
after Stationary Auto-Tuning was 0.2
Hz or lower.
The motor rated slip that was measured
after compensation with E2-08 [Motor
Saturation Coefficient 2] is not in the
applicable range.
The secondary resistor measurement
results were not in the applicable range.
Causes
The Auto-Tuning results of the Line-to-
Line Resistance were not in the
applicable range.
Causes
The Auto-Tuning results were not in the
applicable parameter setting range.
A1-02 [Control Method Selection]
setting is not applicable.

6.7 Auto-Tuning Errors

Possible Solutions
• Make sure that the input motor nameplate data is
correct.
• Do Auto-Tuning again and correctly set the
motor nameplate data.
• If you can uncouple the motor and load, remove
the motor from the machine and do Rotational
Auto-Tuning again.
• If you cannot uncouple the motor and load, use
the results from Auto-Tuning.
Possible Solutions
• Make sure that the input motor nameplate data is
correct.
• Do Auto-Tuning again and correctly set the
motor nameplate data.
• Examine and repair damaged motor wiring.
• If you can uncouple the motor and load, remove
the motor from the machine and do Rotational
Auto-Tuning again.
Possible Solutions
Do Auto-Tuning again and set the correct rated
current shown on the motor nameplate.
Possible Solutions
• Make sure the input motor nameplate data is
correct.
• Do Rotational Auto-Tuning again and correctly
set the motor nameplate data.
• If you cannot uncouple the motor and load, do
Stationary Auto-Tuning 2.
Possible Solutions
• Make sure that the input motor nameplate data is
correct.
• Examine and repair damaged motor wiring.
Possible Solutions
Make sure that the input motor nameplate data is
correct, and do Auto-Tuning again.
• Examine the value set in A1-02.
• Make sure that the input motor nameplate data is
correct, and do Auto-Tuning again.
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