9.1.4
Operation principle
Status indication and validity check
The object state is defined by two digital inputs,
POSOPEN
and
POSCLOSE
, which are
also available as outputs
OPENPOS
and
CLOSEPOS
together with the
OKPOS
information. The debouncing and short disturbances in an input are eliminated by
filtering. The binary input filtering time can be adjusted separately for each digital input
used by the function block. The validity of the digital inputs that indicate the object state
is used as additional information in indications and event logging. The reporting of faulty
or intermediate position of the apparatus occurs after the
Event delay
setting, assuming
that the circuit breaker is still in a corresponding state.
Table 862:
Status indication
Input
Status
Output
POSOPEN
POSCLOSE
POSITION
(Monitored data)
OKPOS
OPENPOS
CLOSEPOS
1=True
0=False
1=Open
1=True
1=True
0=False
0=False
1=True
2=Closed
1=True
0=False
1=True
1=True
1=True
3=Faulty/Bad
(11)
0=False
0=False
0=False
0=False
0=False
0=Intermediat
e (00)
0=False
0=False
0=False
Enabling and blocking
52, 29DS and 29GS have an enabling and blocking functionality for interlocking and
synchrocheck purposes.
Circuit breaker control 52
Normally, the CB closing is enabled (that is,
CLOSE_ENAD
signal is TRUE) by activating
both
ENA_CLOSE
and
SYNC_OK
inputs. Typically, the
ENA_CLOSE
comes from the
interlocking, and
SYNC_OK
comes from the synchronism and energizing check. The
input
SYNC_ITL_BYP
can be used for bypassing this control. The
SYNC_ITL_BYP
input can be used to activate
CLOSE_ENAD
discarding the
ENA_CLOSE
and
SYNC_OK
input states. However, the
BLK_CLOSE
input always blocks the
CLOSE_ENAD
output.
The CB opening (
OPEN_ENAD
) logic is the same as CB closing logic, except that
SYNC_OK
is used only in closing. The
SYNC_ITL_BYP
input is used in both
CLOSE_ENAD
and
OPEN_ENAD
logics.
1MAC059074-MB A
Section 9
Control functions
615 series ANSI
959
Technical Manual
Summary of Contents for Relion 615 series
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