Siemens SINAMICS PERFECT HARMONY GH180 Function Manual page 430

Software user interface
9.6 ML Keypad
Key Combination
428
Description
Restore the security level back to 0.
Enter the [SHIFT] + [⇐] key sequence 3 times in succession from the default meter display to restore
the security level back to 0.
Go to the bottom item of the currently selected menu, submenu or pick list.
When editing a value that has been changed from its factory default, this key sequence returns the
value to its factory default.
NXGPro+ Control Manual
Operating Manual, A5E50491925A