For each of the freely configurable LED indicators, the operating mode can be selected separately. This setting will determine whether the LED indicator will operate either in energize-on-signal (ES) or normally-energized (NE) mode, whether it will be flashing and whether it will be in latching mode. Latching is disabled either manually via setting parameters or by an appropriately configured binary signal input (see Chapter “Main Functions of the P632 (Function Group MAIN)”) at the onset of a new fault, signalized by the onset of a general starting, or of a new system disturbance, depending on the selected operating mode.

Therefore the operating modes turn out to be the 2³=8 possible combinations of the following components:

in addition to these there are the following 4 operating modes:

so that there are 12 possible operating modes in total.