Siemens 7SJ85 - Application and Setting Notes; Settings; Information List

Blocking of the Stage
In the event of blocking, the picked up function is reset. Blocking is possible externally or internally via the
binary input signal >Block stage .
Application and Setting Notes
Parameter: Reference voltage
•
Default setting Reference voltage = None
With the parameter Reference voltage, you can set a measured voltage as the reference voltage.
i
i
NOTE
You must assign a voltage measuring point to the parameter Reference voltage. The assignment influ-
ences the voltage-related protection functions which are used in the same FGs as the Voltage-comparison
supervision function. These voltage-related protection functions use the unassigned voltage measuring
point, which is defined as the main voltage in the Voltage-comparison supervision function. You can find
more information in section Voltage Selection, Page 1267.
EXAMPLE
Meas.point V-3ph 1 and Meas.point V-3ph 2 are connected to the Voltage-comparison supervision func-
tion. Then you have 2 more setting options, as shown in the following figure. You must select one of these
setting options for the parameter Reference voltage.
[sc_VBS_ref.voltage, 1, en_US]
Parameter: Mode
•
Default setting (_:2311:1) Mode = off
With the parameter Mode, you can activate and deactivate the Voltage-comparison supervision function. If
you switch to test mode, the Voltage-comparison supervision function is marked as invalid.
Settings
Addr.
Parameter C Setting Options Default Setting
VolCmpSup 1
_:2311:1 General:Mode
•
off
•
on
•
test
off
_:2311:101 General:Reference
voltage
Setting options depend on
configuration
None
Information List
No.
Information Data Class
(Type)
Type
VolCmpSup 1
_:2311:81 General:>Block stage SPS I
9.3.8.4
9.3.8.5
9.3.8.6
Supervision Functions
9.3 Supervision of the Secondary System
1270 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017