ABB Relion 670 Series Technical Reference Manual page 672

Section 12
Control
666
select
reservation request RES_RQ
reservation granted RES_GRT
command termination
tResResponse
timer
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Figure 333: tResResponse
The timer tExecutionFB supervises the time between the execute command and the
command termination, see figure 334.
execute command
phase A open
close
phase B open
close
open
phase C
close
command termination
phase A
command termination
phase B
command termination
phase C
command termination
circuit breaker open
close
tExecutionFB
timer
* 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.
t1>tResResponse, then
1-of-n-control in 'cause'
t1
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*
t1
Technical reference manual
1MRK505222-UUS C
is set
t1>tExecutionFB, then
long-operation-time in
'cause' is set
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