3.23
Date Code 20171006 Instruction Manual SEL-400 Series Relays
Basic Relay Operations
Making Simple Settings Changes
Example 3.1 Text-Edit Mode Line Editing
Set Display Point 1 through Display Point 3 to show the status of Circuit
Breaker 1, Circuit Breaker 2, and the operational state (on or off) of the
transformer cooling fans near the circuit breaker bay where you have
installed the relay. See Display Points on page 4.10 for information on pro-
gramming display points.
For this example, use inputs IN101, IN102, and IN105. You can use other
inputs for your particular application.
This procedure assumes that you have successfully established communica-
tion with the relay (see Making an EIA-232 Serial Port Connection on
page 3.4). In addition, you must be familiar with relay access levels and
passwords (see Changing the Default Passwords in the Terminal on
page 3.10) to change the default access level passwords.
Step 1. Prepare to control the relay at Access Level 2.
a. Using a communications terminal, type ACC <Enter>.
b. Type the Access Level 1 password and press <Enter>.
You will see the Access Level 1 => prompt.
c. Type 2AC <Enter>.
d. Type the Access Level 2 password and press <Enter>.
You will see the Access Level 2 =>> prompt.
Step 2. Access the display point settings.
a. Type SET F <Enter> to modify the front-panel settings.
b. Advance through the front-panel settings (repeatedly type > and
then <Enter>) until you reach the Display Points category.
Figure 3.17 shows a representative terminal screen. The
relay displays the first line that you can edit. For the case of
display points, the line number is the display point number.
Step 3. At the Line 1 settings
? prompt, type the following to create Dis-
play Point 1:
IN101,CB1,CLOSED,OPEN <Enter>
The relay verifies that this is a valid entry, then responds with the next
line prompt
2: followed by the settings ? prompt (see Figure 3.17).
Step 4. At the Line 2 settings
? prompt, type the following to create Dis-
play Point 2:
IN102,CB2,CLOSED,OPEN <Enter>
The relay verifies that this is a valid entry, then responds with the next
line prompt
3: followed by the settings ? prompt (see Figure 3.17).
Step 5. At the
Display Points prompt, use the text-edit mode line edit-
ing commands to list the active display points. Type the follow-
ing:
LIST <Enter>
After showing the active display points, the relay returns to
Line 3 followed by the settings
? prompt.
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