ABB RED650 Technical Manual page 375

1MRK 505 394-UEN A
Line differential protection RED650 2.2 IEC
Technical manual
execute command
position L1 open
close
position L2 open
close
position L3 open
close
cmd termination L1
cmd termination L2
cmd termination L3
cmd termination
position open
close
tExecutionFB timer
* The cmd termination will be delayed one execution sample .
IEC05000094 V2 EN-US
Figure 176: tExecutionFB
The parameter tSynchrocheck is used to define the maximum allowed time between
the execute command and the input SYNC_OK to become true. If SYNC_OK=true
at the time the execute command signal is received, the timer "tSynchrocheck" will
not start. The start signal for the synchronizing is obtained if the synchrocheck
conditions are not fulfilled.
The parameter tSynchronizing is used to define the maximum allowed time
between the start signal for synchronizing and the confirmation that synchronizing
is in progress.
Section 12
*
t1
APCtExecutionFB=IEC0
5000094=2=en=Original
.vsd
Control
t1>tExecutionFB, then
long-operation-time in
'cause' is set
369