![background image](http://html.mh-extra.com/html/abb/rec650-ansi/rec650-ansi_technical-manual_2772539.webp)
12.18.7.4
Operation counter
The operation counter subfunction calculates the number of breaker operation cycles.
Both open and close operations are included in one operation cycle. The operation counter
value is updated after each open operation.
The operation of the subfunction can be described by using a module diagram. All the
modules in the diagram are explained in the next sections.
GUID-FF1221A4-6160-4F92-9E7F-A412875B69E1 V1 EN
Figure 235:
Functional module diagram for counting circuit breaker operations
Operation counter
The operation counter counts the number of operations based on the state change of the
binary auxiliary contacts inputs
POSCLOSE
and
POSOPEN
.
The number of operations
NO_OPR
is available through the Monitored data view on the
LHMI or through tools via communications. The old circuit breaker operation counter
value can be taken into use by writing the value to the
CountInitVal
parameter and can be
reset by
Clear CB wear
in the clear menu from LHMI.
Alarm limit check
The
OPRALM
operation alarm is generated when the number of operations exceeds the
value set with the
OpNumAlm
threshold setting. However, if the number of operations
increases further and exceeds the limit value set with the
OpNumLO
setting, the
OPRLOALM
output is activated.
The binary outputs
OPRLOALM
and
OPRALM
are deactivated when the
BLOCK
input is
activated.
12.18.7.5
Accumulation of I
y
t
Accumulation of the I
y
t module calculates the accumulated energy.
The operation of the module can be described by using a module diagram. All the modules
in the diagram are explained in the next sections.
1MRK 511 287-UUS A
Section 12
Monitoring
533
Technical manual
Содержание REC650 ANSI
Страница 1: ...Relion 650 series Bay control REC650 ANSI Technical manual ...
Страница 2: ......
Страница 42: ...36 ...
Страница 60: ...54 ...
Страница 66: ...60 ...
Страница 424: ...418 ...
Страница 566: ...560 ...
Страница 636: ...630 ...
Страница 699: ...693 ...