Siemens siprotec 7SA522 User Manual page 116

Configuration
User Defined Meas-
ured Values (MVU)
and Limit Values
(LVU)
Metered Values
5-18
Position change
The three binary inputs used for this must have sequential numbers, such as BI 1, BI
2, and BI 3.
For the information type "Measured Values User Defined" (098), the units, the conver-
sion factor, and the number of significant digits following the decimal point may be
specified. For the information type "Limit Values User Defined" (/98), a limit value may
be programmed (Figure 5-15).
Figure 5-15 Information properties example for information type "Limit Value User Defined"
(LVU)
If, for example, a low current reporter should be established using the CFC logic, and
the percentage of the measured current should be matched to a certain amp value,
the following values are entered in window according to Figure 5-15:
The 'LPHQVLRQ is A (amps). The &RQYHUVLRQ )DFWRU is 150: 150 A corresponds
to 100 % input current. The limit value upon start-up is set for 120 A.
For metered values, the determination of the polarity (+/–) is determined by the direc-
tion of power flow (Figure 5-16). The user may also define the units for pulsed metered
values (309), the conversion factor, and the number of significant digits following the
decimal point (Figure 5-16). If the event pulse option is selected, each individual im-
pulse increases the counter by one. If the double current pulse option is selected, then
each individual transition (positive or negative) increases the counter by one. If, for ex-
ample, MVARh is entered as the units and 1000 is entered as the conversion factor,
then 1000 impulses will result in a reading of one MVARh.

7SA522 Manual
C53000-G1176-C119-2