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230
Apparatus control
COMCON
CLOSE
EXECUTE
SWICONB
CLOSE
EXECUTE
SEL_CLOS
EXE_CLOS
SY_RUN
SY_FAIL
Timer
INPUT
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In figure 108 to figure 111, the SY_FAIL input supervises the synchronization time. If
the relay does not reach synchronism within a certain time, SY_FAIL is activated and
resets the complete operation sequence.
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Figure 112 shows the interaction between the autoreclosing (AR) module and the appa-
ratus control modules. The OR gate for the close signal must have the same execution
cyclicity as the autoreclosing module. The signal BLK_AR from SWICON is used to
block the autoreclose function at the moment the circuit breaker is under operation.
BI/BO
External synchrocheck
equipment
SYNCH
START
&
IN
PROGRESS
ON
>1
&KDSWHU
CB
close
CLOSE
coil
+
FAULT
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&RQWURO
-
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