SANCH S3800C Series, Руководство пользователя

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４８
When taking auto-tuning for 03
．
04, auto-tuning data is saved in the function parameter of motor 1*.
Listed below are possible causes that trigger tuning errors.
■
Auto-tuning errors
Improper tuning would negatively affect the operation performance and, in the worst case, could even
cause hunting or deteriorate precision. Therefore, if the inverter finds any abnormality in the tuning
results or any error in the tuning process, it displays er7 and discards the tuning data
(2) Mechanical System Preparation
Take dismantling for motor gearing.
(3) Auto-tuning execution procedures
①
Set “1” or “2”in function code 03
．
04 and press key.
②
Enter a run command. (Press key on keypad as forward running. If it takes reverse running,
change the data of function parameter 00
．
02).
③
After enter a run command, Tuning starts with the motor stopped . Auto-tuning time: max. 40 to 80 s.
④
When function parameter 03
．
04* = 2, after the tuning in
③
above, the motor is accelerated to
around 50% of base frequency and then tuning starts Upon completion of measurements, the motor
decelerates to a stop.
(Estimated tuning time: Acceleration time + 20 to 75 s + Deceleration time)
⑤
When function parameter 03
．
04* = 2, after the motor deceleration to a stop in
④
above,tuning continues with the motor stopped..
(Max. tuning time: 40 to 80 s.
⑥
Automatically turn the run command OFF to complete tuning.
Main tuning error causes
Content
When it has been detected that interphase voltage unbalance or output
phase loss, or Tuning has resulted in an abnormally high or low value of a
parameter due to the output circuit opened.
During tuning, when a run command has been turned OFF, or force to stop
[mSTOP], or Coast to a stop [mBX], to Protect from dew condensation ,
[mDWP] or other similar terminal command has been received as so on.
An abnormally high current has flown during tuning.
During tuning, any of the operation limiters has been activated.
An undervoltage or any other alarm has occurred.
Errors appears
Error due to limitation
Sequence error
Output current error
Error in tuning results
Note
：
Do not execute motor tuning with output filter unless the filter is a reactor type only. A tuning
error may result if any other type filter is in use., please set the primary resistance% R1, leakage
reactance% X, no-load current, and rated slip frequency of the inverter in function parameters before
replacement.
Vibration that may occur when the motor's coupling is elastic can be regarded as normal vibration
due to the output voltage pattern applied in tuning. The tuning does not always result in an error;
however, run the motor and check its running state.