What would cause the A1U1 parameter not to show up in the Fr1 menu on the ATV320 drive?

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Issue:
A1U1 parameter does not show up in the Fr1 menu on the ATV320 drive.

Product Line:
Altivar ATV320

Environment:
All

Cause:
Wants to setup the knob as the speed control

Resolution:
A1U1 will only show up in the Fr1 menu when you assign CHCF to SEP (Profile= Separate). Changing the value of this parameter requires holding the enter button for 2 seconds.