We have the option to block the access to the VFD menu by setting a 5 digit password configured by the user.
The password protection will be valid when setting any non-zero number.
Set P07.00 (Users password) to any non-zero number.
User's password will be valid after 1 minute.
When pressing on the PRG button, 5 zeros will be displayed, place the 5 digit code in order to continue to the menu, failing to do so will block the access to the VFD menu.