Siemens siprotec 7SA522, User Manual

Page: 391 / 628

Functions
6-243
7SA522 Manual
C53000-G1176-C119-2
The information regarding the position of the circuit breakers is not automatically de-
rived from the position logic according to Sub-section 6.17.2 (Figure 6-125). For the
circuit breaker test function (auto recloser) there are separate binary inputs for the
switching status feedback of the circuit breaker position. These must be taken into
consideration when allocating the binary inputs as mentioned in Section 6.17.2 (Page
6-229).
The alarms of the device show the respective state of the test sequence.
Figure 6-131 Trip/Close test cycle
6.17.6 Setting Parameters
The configuration concerning the tripping logic of the device as a whole and circuit-
breaker test functio was already set in accordance with the general data in Subsection
6.1.3 and 6.1.1.
Furthermore, the setting in address
)OW'LVS/('/&'
, determines whether
the fault messages which are allocated to the local LEDs as well as the spontaneous
messages that are displayed via the LCD on the front of the device following a fault,
are stored following each fault detection of a protection function (
with PICKUP ), or if
storage only takes place if a trip command is issued ( with TRIP = “No trip no flag”-
feature).
Table 6-8 Circuit breaker test programs
Seq.
No.
Test cycles CB Output alarm
1 1 pole TRIP/CLOSE cycle pole L1
CB 1
&%7(67WULS/
2 1pole TRIP/CLOSE cycle pole L2
&%7(67WULS/
3 1pole TRIP/CLOSE cycle pole
&%7(67WULS/
4 3pole TRIP/CLOSE cycle
&%7(67WULS
applicable close command
&%7(67FORVH
OFF
ON
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