115 Setting the Redundancy ControllerFig. 4-1 Display mode switchChanges the display mode to the 8 different windows.When the switch is pressed for 2 seconds or longer, the front switch key is locked. Pressing the switch oncemore for 2 seconds or longer it unlocks the key. Setting switchWhen data has been changed, pressing the switch for one second or more, the new data is confirmed. Front operation switchesChange the data. Pressing a switch of the digit for which you would like to change the numerical value duringthe data change adds one to the numerical value displayed. (Data display blinks during the data change). #5 isused to start stop operation. No special meaning in this case Lock displayShows that the switches are locked RUN/PROG. DisplayDisplays the operation mode (RUN or PROG.) ERR./ALARM displayIndicates when an error or an alarm occursERR. : Lights up if an error is detected during the self diagnostic functionALARM : Lights up if a hardware error occurs, or if operation slows because of the program and thewatchdog is activated