ABB Relion 670 Series Technical Reference Manual page 867

1MRK505222-UUS C
14.1.2.1
Technical reference manual
The breaker close lockout function can be activated from an external trip signal from
another protection function via input (SETLKOUT) or internally at a three-pole trip, if
desired.
It is possible to lockout seal in the tripping output signals or use blocking of closing
only the choice is by setting TripLockout.
Logic diagram
TRINP_A
TRINP_B
OR
TRINP_C
1PTRZ
1PTRGF
OR
TRINP_3P
Program = 3 phase
ANSI05000517 V3 EN
Figure 428: Three-phase front logic — simplified logic diagram
OR
INTL_ABCTRIP
AND
ANSI05000517-3-en.vsd
Section 14
Logic
861