ABB Relion 670 series, Technical Reference Manual, Page: 672 / 1232

select
tResResponse
timer
reservation granted RES_GRT
t1>tResResponse, then
1-of-n-control in 'cause'
is set
t1
reservation request RES_RQ
command termination
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IEC05000093 V1 EN
Figure 333: tResResponse
The timer tExecutionFB supervises the time between the execute command and the
command termination, see figure 334 .
execute command
phase A
t1>tExecutionFB, then
long-operation-time in
'cause' is set
open
close
close
open phase C
close
open phase B
t1
tExecutionFB
timer
command termination
phase A
command termination
phase B
command termination
phase C
command termination
circuit breaker open
close
* The command termination will be delayed one execution sample.
*
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Figure 334: 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 synchronism-check conditions
are not fulfilled.
Section 12
1MRK505222-UUS C
Control
666
Technical reference manual