3.24
SEL-400 Series Relays Instruction Manual Date Code 20171006
Basic Relay Operations
Making Simple Settings Changes
Step 6. Type the following to create Display Point 3:
IN105,“5 MVA XFMR Fans”,ON,OFF <Enter>
The relay verifies that this is a valid entry, then responds with the next
line prompt
4: followed by the settings ? prompt (see Figure 3.17).
Step 7. Type END <Enter> to end the editing session.
The relay scrolls a readback of all the front-panel settings,
eventually displaying the
Save settings (Y,N) ? prompt. (A
vertical ellipsis in Figure 3.17 represents the readback.)
At the end of the readback information, just before the
Save
settings (Y,N) ?
prompt, you can verify the new display point
information.
Step 8. Answer Y <Enter> to save the new settings.
This procedure proposes connecting the transformer bank fan sensor to relay
input IN105. In the SET G (GLOBAL) command, verify that the debounce
time settings IN105PU and IN105DO are correct for your fan-running sen-
sor. To access separate input parameters, you must first enable independent
control input settings with setting EICIS. To change the input conditioning,
enter the following settings:
EICIS := Y Enable Independent Control Input Settings (Y, N)
IN105PU := 0.3750 Pickup Delay for Contact Input IN105 (0.0000–5 cyc)
IN105DO := 0.3750 Dropout Delay for Contact Input IN105 (0.0000–5 cyc)
Use the appropriate interface hardware to connect the fan-running sensor to
IN105. Choose any relay input that conforms to your requirements.
Example 3.1 Text-Edit Mode Line Editing (Continued)
NOTE: Use quotation marks when
entering alias strings that contain spaces
or punctuation marks, as shown in the
IN105 sample, Step 6.
Display Points
(Boolean) : RWB Name, “Label”, “Set String”, “Clear String”, “Text Size”
(Analog) : Analog Quantity Name, “User Text and Formatting”, “Text Size”
1:
? IN101,CB1,CLOSED,OPEN <Enter>
2:
? IN102,CB2,CLOSED,OPEN <Enter>
3:
? LIST <Enter>
1: IN101,"CB1","CLOSED","OPEN",S
2: IN102,"CB2","CLOSED","OPEN",S
3:
? IN105,“5 MVA XFMR Fans”,ON,OFF <Enter>
4:
? END <Enter>
•
•
•
Display Points
(Boolean) : RWB Name, “Label”, “Set String”, “Clear String”, “Text Size”
(Analog) : Analog Quantity Name, “User Text and Formatting”, “Text Size”
1: IN101,"CB1","CLOSED","OPEN",S
2: IN102,"CB2","CLOSED","OPEN",S
3: IN105,"5 MVA XFMR Fans","ON","OFF",S
•
•
•
Save settings (Y,N) ? Y <Enter>
Saving Settings, Please Wait...........
Settings Saved
=>>
Figure 3.17 Using Text-Edit Mode Line Editing to Set Display Points
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