CHAPTER 5: SETTINGS PRODUCT SETUPB30 BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-1275The digital state can be entered locally (by directly pressing the front panel pushbutton or optional graphical front panelinterface) or remotely (via FlexLogic operands) into FlexLogic equations, protection elements, and control elements. Typicalapplications include breaker control, autorecloser blocking, and setting groups changes. For example, set pushbuttons 1 to5 to select settings groups 1 to 5, or set pushbutton 1 to clear event records. The user-programmable pushbuttons areunder the control level of password protection.ExampleTo clear event records using pushbutton 1, set Settings > Product Setup > Clear Relay Records > Clear Event Records toFlexLogic operand PUSHBUTTON 1 ON. Then program the pushbutton by setting Settings > Product Setup > User-Programmable Pushbuttons > Pushbutton 1 Function to "Self-reset." For a graphical front panel, to use a sidepushbutton 9 to 16 to clear the event records, it also needs to be programmed in a single-line diagram.The figures show user-configurable pushbuttons for the front panels.Figure 5-55: User-programmable pushbuttons (enhanced front panel)Figure 5-56: User-programmable pushbuttons (standard front panel)Figure 5-57: User-programmable pushbuttons (graphical front panel)Front panel pushbuttons and LEDs can be custom labelled as outlined in the Front Panel Labelling section in the previouschapter.
