5-355.4.7 Inhibiting the System Menu DisplayIn order to prevent unauthorized persons from being able to change GT30 configuration settings, the GTmain unit is set up so that DIP switches can be used to make it impossible to display the system menu.Operation mode setting switchesIf the second operation mode setting switch is turned on, as shown at the left,access to the system menu is denied.Switch No. Function OFF ON1 Usage inhibited Should always be in the “OFF”position when unit is used.2 Inhibits system menu shift Shift possible Shift inhibited34 Usage inhibited Should always be in the “OFF”position when unit is used.
