Mitsubishi Electric FR-E720-0.1 K Instruction Manual page 265

(2) Disable the setting dial and key operation of the operation panel (Press [MODE] long (2s))
Operation using the setting dial and key of the operation panel can be invalid to prevent parameter change, and
unexpected start or frequency setting.
Set "10 or 11" in Pr. 161, then press
When the setting dial and key operation are invalid,
attempted while dial and key operation are invalid,
display appears.)
To make the setting dial and key operation valid again, press
REMARKS
Even if the setting dial and key operation are disabled, the monitor display and
NOTE
Release the operation lock to release the PU stop by key operation.
Setting from the parameter unit and operation panel
for 2s to make the setting dial and key operation invalid.
appears on the operation panel. If dial or key operation is
appears. (When dial or key is not touched for 2s, monitor
for 2s.
are valid.
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