ABB RER615 - Page 693

Output signal Operation description Operation type
OPEN_CB1 is activated after
CB1 Trip delay has expired.
Setting Main bus priority =
“bus 2”.
If CB1 position is closed and
bus 2 is healthy, OPEN_CB1 is
activated after Open CB1 de-
lay has expired.
Automatic reconnection
CLOSE_CB1
Setting Main bus priority =
“bus 1”.
If both CB1 and CB2 are
open, and bus 1 is healthy,
CLOSE_CB1 is activated af-
ter Close CB1 delay has ex-
pired. Operation is independ-
ent of the state on bus 2.
Automatic reconnection
Setting Main bus priority =
“bus 2”.
If both CB1 and CB2 are open,
bus 2 is faulty and bus 1 is
healthy, CLOSE_CB1 is acti-
vated after Close CB1 delay
has expired.
Automatic transfer
Activation of BLOCK input deactivates the outputs and resets the timers.
1MRS758755 C
Control functions
REC615 & RER615
Technical Manual
693