Functional Diagrams For Control And Interlocking - ABB REF615 Applications Manual

Section 3
REF615 variants
3.4.3.3
54

Functional diagrams for control and interlocking

A071326 V4 EN
Figure 22: Master trip
The operate signals from the protections described above are connected to the two
trip output contacts PO3 (X100:16-19) and PO4 (X100:20-23) via the corresponding
Master Trips TRPPTRC1 and TRPPTRC2. Open control commands to the circuit
breaker from local or remote CBXCBR1-exe_op or from the auto-recloser
DARREC1-open_cb are connected directly to the output PO3 (X100:16-19).
The TRPPTRC1 and 2 blocks provide the lockout/latching function, event generation
and the trip signal duration setting. If the lockout operation mode is selected, one
binary input can be re-assigned to the RST_LKOUT input of the Master Trip to enable
external reset with a push button.
1MRS756378 D
REF615
Application Manual