ABB REC650 Technical Manual page 257

1MRK 511 287-UEN A
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 V1 EN
Figure 118: 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.
execute command
SYNC_OK
tSynchrocheck
START_SY
SY_INPRO
tSynchronizing
IEC05000095 V1 EN
Figure 119: tSynchroCheck and tSynchronizing
*
t1
en05000094.vsd
t1
t2
en05000095.vsd
Section 10
Control
t1>tExecutionFB, then
long-operation-time in
'cause' is set
t2>tSynchronizing, then
blocked-by-synchrocheck in
'cause' is set
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