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What is the speed accuracy of the ATV71 series drives?

Issue:
What is the speed accuracy of hte ATV71 series drives?
 
Product Line:
ATV71, Altivar 71 series drives.
 
Environment:
All models, All serial numbers
 
Cause:
Customer unable to find information in current literature.
 
Resolution:
For a torque variation of 0.2 Tn to Tn, the speed accuracy is =/- 0.01% of nominal speed, in closed-loop mode with encoder feedback.  In open-loop mode, without encoder feedback, the speed accuracy is +/-10% of nominal slip.
 






 
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