11.2.4 SignalsTable 174:TCSSCBR Input signalsName Type Default DescriptionTCS_STATE BOOLEAN 0 Trip circuit fail indication from I/O-cardBLOCK BOOLEAN 0 Block of functionTable 175:TCSSCBR Output signalsName Type DescriptionALARM BOOLEAN Trip circuit fault indication11.2.5 SettingsTable 176:TCSSCBR Non group settings (basic)Name Values (Range) Unit Step Default DescriptionOperation OffOn- - On Operation Off/OntDelay 0.020 - 300.000 s 0.001 3.000 Operate time delay11.2.6 Operation principleThe function can be enabled and disabled with the Operation setting. Thecorresponding parameter values are "On" and "Off".The operation of trip circuit supervision can be described by using a module diagram.All the modules in the diagram are explained in the next sections.GUID-9D3B79CB-7E06-4260-B55F-B7FA004CB2AC V1 ENFigure 116: Functional module diagramTrip circuit supervision generates a current of approximately 1.0 mAthrough the supervised circuit. It must be ensured that this current willnot cause a latch up of the controlled object.1MRK 504 135-UEN A Section 11Secondary system supervision255Technical manual
