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What is parameter F400 on the ATV212?

What is parameter F400 on the ATV212?
Issue: 
What is parameter F400 on the ATV212?
 
Product Line:
Altivar 212, Altivar 21
 
Environment:
All Serial numbers
 
Cause:
N/A
 
Resolution:
F400 is the auto tuning parameter for the ATV212 and the ATV21.   The setting for the parameters are listed below:
0 [Disabled]
1 [Initialize constant]  Auto-tuning is performed immediately if possible.   Application of individual settings of Auto Torque Boost [Auto
  Torque Boost]
(F402)
2 [Complete tune]   Complete auto tuning.
Parameter
F400 is reset to “0” after the auto tuning is performed.
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