YASKAWA V1000 Series

5.8 Auto-Tuning Fault Detection
244 YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
Cause Possible Solutions
The torque reference exceeded
20% during Auto-Tuning.
• Before Auto-Tuning the drive, verify the information written on the motor
nameplate.
• Enter the proper information into parameters T1-03 to T1-05 and repeat
Auto-Tuning.
• If possible, disconnect the motor from the load and perform Auto-Tuning.
The results from Auto-Tuning
the no-load current exceeded
80%.
LED Operator Display Error Name
End2
Motor Iron-Core Saturation Coefficient (detected only during Rotational
Auto-Tuning)
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.
• Restart Auto-Tuning and enter the correct information.
Because Auto-Tuning
calculated values outside the
parameter setting range, the
iron-core saturation coefficient
(E2-07, -08) was assigned a
temporary value.
• Check and correct faulty motor wiring.
• Disconnect the motor from machine and perform Rotational Auto-Tuning.
LED Operator Display Error Name
End3 Rated Current Setting Alarm (displayed after Auto-Tuning is complete)
Cause Possible Solutions
• The motor line-to-line
resistance and the motor-rated
current are not consistent with
one another.
• The correct current rating
printed on the nameplate was
not entered into T1-04.
• Check the setting of parameter T1-04.
• Check the motor data and repeat Auto-Tuning.