The signals and line connections in dark red color can be active only if the Self-Supervision
of the WIC1 has determined an internal problem. The signals and line connections in green
color can be active only if the software-based protection functions are all healthy.
The signal »Prot . Active« – labeled as number ( 18 ) in the diagram – gets active as soon
as the WIC1 has started and activated the (software-based) protection modules. This is also
true of the “Protection-Only” operating mode. But if the Self-Supervision has determined
the software-based protection as non-functioning only the Backup Protection is running
and all signals are inactive. (The latter fact is indicated in the diagram by inactivating
( 18 ) »Prot . Active« via the “R” Reset input of the S&H block. Of course, this is merely a
makeshift: If the WIC1 software is not functioning there can be no correct visualization of the
internal functionality.)
NOTICE!
A General Pickup signal makes the “Pickup/Trip” LED ashing red, and a General Trip
signal makes the “Pickup/Trip” LED shine constantly red (as long as the WIC1 is still being
supplied with power and the signal is active).
There is no latching of this LED. (See also ╚═▷ “3.8.1 LEDs”.)
125WIC1WIC1-1.0-EN-MAN
4 Protective Elements
4.1.1.1 Trip Pulse and WIC1 LEDs
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