ABB Relion 670 series, Technical Reference Manual, Page: 710 / 1232

12.4.6.4 Input and output signals
Table 359: A1A2_DC (3) Input signals
Name Type Default Description
QB_OP BOOLEAN 0 089 is in open position
QB_CL BOOLEAN 0 089 is in closed position
S1QC1_OP BOOLEAN 0 S189G on bus section 1 is in open position
S1QC1_CL BOOLEAN 0 S189G on bus section 1 is in closed position
S2QC2_OP BOOLEAN 0 S289G on bus section 2 is in open position
S2QC2_CL BOOLEAN 0 S289G on bus section 2 is in closed position
S1DC_OP BOOLEAN 0 All disconnectors on bus section 1 are in open position
S2DC_OP BOOLEAN 0 All disconnectors on bus section 2 are in open position
VPS1_DC BOOLEAN 0 Switch status of disconnectors on bus section 1 are valid
VPS2_DC BOOLEAN 0 Switch status of disconnectors on bus section 2 are valid
EXDU_ES BOOLEAN 0 No transm error from bays containing ground sw.
S189G or S289G
EXDU_BB BOOLEAN 0 No transm error from bays with disc conn to section 1
and 2
QBCL_EX1 BOOLEAN 0 External close condition for section disconnector 089
QBCL_EX2 BOOLEAN 0 External close condition for section disconnector 089
QBOP_EX1 BOOLEAN 0 External open condition for section disconnector 089
QBOP_EX2 BOOLEAN 0 External open condition for section disconnector 089
QBOP_EX3 BOOLEAN 0 External open condition for section disconnector 089
Table 360: A1A2_DC (3) Output signals
Name Type Description
QBOPREL BOOLEAN Opening of 089 is allowed
QBOPITL BOOLEAN Opening of 089 is not allowed
QBCLREL BOOLEAN Closing of 089 is allowed
QBCLITL BOOLEAN Closing of 089 is not allowed
DCOPTR BOOLEAN The bus section disconnector is in open position
DCCLTR BOOLEAN The bus section disconnector is in closed position
VPDCTR BOOLEAN Switch status of 089 is valid (open or closed)
12.4.7 Interlocking for bus-coupler bay ABC_BC (3)
Section 12
1MRK505222-UUS C
Control
704
Technical reference manual