are used. The same type of module (A1A2_BS) is used for different busbars, thatis, for both bus-section circuit breakers A1A2_BS and B1B2_BS.SignalS1S2OPTR No bus-section coupler connection between bus-sections 1 and 2.VPS1S2TR The switch status of bus-section coupler BS is valid.EXDU_BS No transmission error from the bay that contains the above information.For a bus-coupler bay in section 1, these conditions are valid:BBTR_OP (sect.1)DCOPTR (A1A2)DCOPTR (B1B2)BBTR_OP (sect.2)&VP_BBTR (sect.1)VPDCTR (A1A2)VPDCTR (B1B2)VP_BBTR (sect.2)EXDU_12 (sect.1)EXDU_DC (B1B2)EXDU_12 (sect.2)VP_BBTREXDU_12en04000483.vsd&EXDU_DC (A1A2)BBTR_OP>1 &IEC04000483 V1 EN-USFigure 54: Signals to a bus-coupler bay in section 1 from any bays in eachsectionFor a bus-coupler bay in section 2, the same conditions as above are valid bychanging section 1 to section 2 and vice versa.8.3.3.4 Signals from bus-coupler M13553-58 v5If the busbar is divided by bus-section disconnectors into bus-sections, the signalsBC_12 from the busbar coupler of the other busbar section must be transmitted tothe own busbar coupler if both disconnectors are closed.Section 1 Section 2A1A2_DC(BS)B1B2_DC(BS) ABC_BCABC_BC(WA1)A1(WA2)B1(WA7)C CB2A2en04000484.vsdIEC04000484 V1 EN-USFigure 55: Busbars divided by bus-section disconnectors (circuit breakers)To derive the signals:Section 8 1MRK 511 423-UEN AControl136 Bay control REC650 2.2 IECApplication manual
