Why does ATV212 Remote Keypad (VW3A1101) switches to Frequency if screen not touched and goes dim, even though Custom RPM display has been set up?

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Issue:
ATV212 Remote Keypad switches to Frequency even though Custom RPM display has been set up

Product Line:
ATV212

Environment:
All

Cause:
NA

Resolution:
This can happen if F702 =0 so need to set F702=60 for one pair of motor poles.