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ATV61 - Cannot change the default display from Hertz to percentage

Published date: 25 July 2019

Issue:
ATV61 - Parameters changed are reverting back to default

Product line:
All Altivar drives and Altistart soft starters.

Environment:
All models, All serial numbers.

Cause:
Programming changes to my drive are being lost, and the parameters return to the previous settings.

Resolution:
If a run command is present, or if the drive is in freewheel mode (NST), programming changes can not be made on the drive for most parameter.   Be certain that the drive state is ready (RDY) before making programming changes to the drive.
 

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