ABB Network Partner AB
Contents
Application .............................................................................................. 2-1
General................................................................................................... 2-1
REC 561 types ............................................................................... 2-2
Basic features......................................................................................... 2-8
Apparatus control ........................................................................... 2-8
Interlocking ..................................................................................... 2-8
Time tagged events........................................................................ 2-9
Configurable logic........................................................................... 2-9
Optional features .................................................................................. 2-10
Measurements.............................................................................. 2-10
Pulse counter ............................................................................... 2-11
Loss-of-power system voltage...................................................... 2-12
Ordering................................................................................................ 2-15
General................................................................................................. 2-19
Fault current ................................................................................. 2-20
Technical data ...................................................................................... 2-22
Hardware design .................................................................................. 2-27
Hardware modules ............................................................................... 2-28
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