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Why does my keypad not allow me to change the contrast on the ATV61 and ATV71?

FA233981

15 April 2022

Issue:
Cannot change contrast

Product Line:
Altivar Machines, Altivar 61, Altivar 71

Environment:
All models and serial numbers

Cause:
The menu 7.4 Keypad parameters is accessible if access level is set to Advanced or Expert.  The value of the contrast parameters, standby time are stored in the keypad and not in the drive.  Check the software version of the drive if it's an old version these parameters might not appear.

Resolution:
Purchase current version level keypads.