3.19
Date Code 20171006 Instruction Manual SEL-400 Series Relays
Basic Relay Operations
Making Simple Settings Changes
Use the alias names, instead of the Relay Word bits, in SELOGIC control equation
programming. Figure 3.14 shows an example of an alias used in protection logic
programming.
Changing Settings Using the Terminal
When you change settings (with any SET command) from a terminal, the relay
shows the setting category, prompt, present value, and action prompt.
Figure 3.15 shows two settings examples: multiple-line settings (SID and RID)
and an in-line setting (NUMBK) for relay Global settings from Access Level P
(protection). The relay prompts you for input by presenting an action prompt.
You have many options for navigating the settings at the
? prompt.
Table 3.5 lists the operations possible from a settings action prompt.
=>>SET T <Enter>
Alias
Relay Aliases
(RW Bit or Analog Qty. 7 Character Alias [0-9 A-Z _])
1: EN,"RLY_EN"
? <Enter>
2:
? PMV01,THETA <Enter>
3:
? PMV02,TAN <Enter>
4:
? END <Enter>
Alias
Relay Aliases
(RW Bit or Analog Qty. 7 Character Alias [0-9 A-Z _])
1: EN,"RLY_EN"
2: PMV01,"THETA"
3: PMV02,"TAN"
Save settings (Y,N) ?Y <Enter>
Saving Settings, Please Wait...........
Settings Saved
=>>
Figure 3.13 Using Text-Edit Mode Line Editing to Set Aliases
=>>SET L <Enter>
Protection 1
1: PLT01S := PB1_PUL AND NOT PLT01 #GROUND ENABLED
? > <Enter>
15:
? THETA:=I01FA <Enter>
16:
? TAN:=SIN(THETA)/COS(THETA) <Enter>
17:
? END <Enter>
Protection 1
.
.
.
Save settings (Y,N) ?Y <Enter>
Saving Settings, Please Wait...........
Settings Saved
=>>
Figure 3.14 Using Text-Edit Mode Line Editing to Set Protection Logic
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