Schweitzer Engineering Laboratories SEL-751 - Figure 4.115 Front-Panel Display-Both HV and LV Breakers Closed; Table 4.94 Binary Entry in the Name String Only; Figure 4.116 Front-Panel Display-HV Breaker Open, LV Breaker Closed; Figure 4.117 Front-Panel Display-HV Breaker Open, LV Breaker Closed

4.198
SEL-751 Relay Instruction Manual Date Code 20170927
Protection and Logic Functions
Front-Panel Settings (SET F Command)
information was omitted. Because the line containing the HV breaker
information is removed, the relay now displays the LV breaker information on
the top line, as shown in Figure 4.116.
Figure 4.115 Front-Panel Display—Both HV and LV Breakers Closed
Figure 4.116 Front-Panel Display—HV Breaker Open, LV Breaker Closed
If you want the relay to display a blank state when IN101 deasserts instead of
removing the line altogether, use the curly brackets {} for the Clear String, as
follows:
When Input IN101 now deasserts, the relay still displays the line with the HV
breaker information, but the state is left blank, as shown in Figure 4.117.
Figure 4.117 Front-Panel Display—HV Breaker Open, LV Breaker Closed
Name Only
Table 4.94 shows an entry in the Name String only (leaving the Alias string,
Set String, and Clear String void). Using the SET F command, select DP01.
Set DP01 as follows.
Figure 4.118 shows the front-panel display for the entry in Table 4.94. Input
IN101 is deasserted in this display (
IN101=0), but changes to IN101=1 when
Input IN101 asserts.
Figure 4.118 Front-Panel Display for a Binary Entry in the Name String Only
DP01 := RID, “{16}”
? IN101,"TRFR 1 HV BRKR:",CLOSED,{} <Enter>
TRFR 1 HV BRKR:= CLOSED
TRFR 1 LV BRKR:= CLOSED
TRFR 1 LV BRKR:= CLOSED
TRFR 1 HV BRKR:=
TRFR 1 LV BRKR:= CLOSED
DP01 := RID, “{16}”
? IN101 <Enter>
Table 4.94 Binary Entry in the Name String Only
Name Alias Set String Clear String
IN101———
IN101=0