Section 7 Secondary system supervision.....................................111Current circuit supervision CCSSPVC............................................111Identification.............................................................................. 111Functionality.............................................................................. 111Function block........................................................................... 111Signals.......................................................................................112Settings......................................................................................112Operation principle.................................................................... 112Technical data........................................................................... 114Fuse failure supervision FUFSPVC................................................114Identification.............................................................................. 114Functionality.............................................................................. 115Function block........................................................................... 115Signals.......................................................................................116Settings......................................................................................117Monitored data...........................................................................118Operation principle.................................................................... 118Zero and negative sequence detection................................ 118Delta current and delta voltage detection.............................120Dead line detection...............................................................123Main logic............................................................................. 124Technical data........................................................................... 127Section 8 Control..........................................................................129Synchrocheck, energizing check, and synchronizing SESRSYN...129Identification.............................................................................. 129Functionality.............................................................................. 129Function block........................................................................... 130Signals.......................................................................................130Settings......................................................................................133Monitored data...........................................................................135Operation principle.................................................................... 135Basic functionality.................................................................135Logic diagrams..................................................................... 136Technical data........................................................................... 148Interlocking .................................................................................... 149Functionality.............................................................................. 149Operation principle.................................................................... 149Logical node for interlocking SCILO ......................................... 152Identification......................................................................... 152Functionality......................................................................... 152Function block...................................................................... 153Signals..................................................................................153Table of contentsBay control REC650 2.2 IEC 3Technical manual