Go Electronic RCC1000 - Settings Framework; System Settings Display

user manual | 14
Press [Enter]. LCD screen displays
Key in 4 digit password. Press [Enter] again. LCD screen displays
Press [Esc] two times to quit and return to normal mode.
3.1.3 Keyboard lock setting
In normal mode, press [Esc]. LCD screen displays
Key in password and press [Enter] to lock controller. LCD screen displays
Press any key. LCD screen displays
Key in password and press [Enter]. Controller will return to unlocked mode.