Schweitzer Engineering Laboratories SEL-421-4 - Page 844

3.26
SEL-400 Series Relays Instruction Manual Date Code 20171006
Basic Relay Operations
Making Simple Settings Changes
To read the note, type SHO N <Enter>, as shown in Figure 3.19.
=>>SET N <Enter>
Notes
1:
? Marius, this is the relay for CARR substation <Enter>
2:
? The Sacramento line drawings and setting sheets are in the top drawer in the sub\
station. <Enter>
Note cannot exceed 70 chars
2:
? The Sacramento line drawings and settings are in the <Enter>
3:
? top drawer in the substation. <Enter>
4:
? END <Enter>
Notes
1: Marius, this is the relay for CARR substation
2: The Sacramento line drawings and settings are in the
3: top drawer in the substation.
Save settings (Y,N) ?Y <Enter>
Saving Settings, Please Wait...........
Settings Saved
Figure 3.18 Leave a Note in the Relay
=>>SHO N <Enter>
Notes
1: Marius, this is the relay for CARR substation
2: Capacitor Bank 1 drawings and settings are in the
3: top drawer in the substation.
=>>
Figure 3.19 Read a Note in the Relay
Example 3.3 Deleting a Display Point
This example shows you how to delete a previously used display point. In the
SET F command, at the Display Points and Aliases prompt, use the text-edit
mode line editing commands to set and delete the display points. This proce-
dure shows two previously programmed display points that indicate on the
front-panel LCD the status of Circuit Breaker 1 and Circuit Breaker 2. Relay
control inputs IN101 and IN102 are the Relay Word bits for the Circuit
Breaker 1 and Circuit Breaker 2 display points, respectively (see Making
Text-Edit Mode Settings Changes on page 3.22). You can use other inputs for
your particular application.
The procedure in the following steps assumes that you have successfully
established communication 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 Ter-
minal on page 3.10).
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 correct password to go to Access Level 2.
You will see the Access Level 2 =>> prompt.