ABB Relion 670 series, Technical Manual

Page: 849 / 1432

ANSI09000209-1-en.vsd
Synchro
check
OR
SCSWI
SXCBR
CLOSE
SYNC_OK
EXE_CL
Synchronizing
function
SY_INPRO
START_SY
CLOSECMD
SESRSYN
ANSI09000209 V1 EN-US
Figure 439: Example of interaction between SCSWI, SESRSYN (25) (synchronism check and
synchronizing function) and SXCBR function
Time diagrams
M13484-51 v6
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
tSelect
timer
execute command
t1
t1>tSelect, then long-
operation-time in 'cause'
is set
en05000092.vsd
IEC05000092 V1 EN-US
Figure 440: tSelect
The Long-operation-time cause is only given on the output L_CAUSE. It is not sent
on protocols since the selection has already received a positive response, and no
operation has been issued. If an operation is issued after the time out, the negative
response is Object-not-selected.
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.
1MRK 502 066-UUS B Section 14
Control
843
Technical manual