ABB Relion 670 Series Technical Reference Manual page 671

1MRK505222-UUS C
Technical reference manual
SCSWI
SYNC_OK
START_SY
SY_INPRO
SESRSYN
Synchro
check
ANSI09000209 V1 EN
Figure 331: Example of interaction between SCSWI, SESRSYN (25) (synchronism
check and synchronizing function) and SXCBR function
Time diagrams
The Switch controller (SCSWI) function has timers for evaluating different time
supervision conditions. These timers are explained here.
The timer tSelect is used for supervising the time between the select and the execute
command signal, that is, the time the operator has to perform the command execution
after the selection of the object to operate.
select
execute command
tSelect
timer
IEC05000092 V1 EN
Figure 332: tSelect
The parameter tResResponse is used to set the maximum allowed time to make the
reservation, that is, the time between reservation request and the feedback reservation
granted from all bays involved in the reservation function.
EXE_CL
CLOSE
OR
CLOSECMD
Synchronizing
function
ANSI09000209-1-en.vsd
t1
Section 12
SXCBR
t1>tSelect, then long-
operation-time in 'cause'
is set
en05000092.vsd
Control
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