Error code
Yaskawa All models code 521
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Meaning
Autotuning Alarm (Vibration was detected while executing the advanced autotuning, one-parameter tuning, EasyFFT, or tuning-less function.)
Member details
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View details as a memberPossible causes
The servomotor vibrated considerably while performing tuningless function (factory setting)
Solution
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Address of this page: https://www.remfixit.com/tr/yaskawa/tum-modeller/521