Sel 421 - Figure 4.11 Components of SET Commands; Table 4.6 Actions at Settings Prompts

U.4.16
SEL-421 Relay User’s Guide Date Code 20090715
Basic Relay Operations
Making Simple Settings Changes
Conversely, the Port settings command has five instances (PORT F, PORT 1,
PORT 2, PORT 3, and PORT 5). To access the PORT 1 settings, type SET P 1
<Enter>. If you do not specify which port to set, the relay defaults to the
active port (the port you are presently using).
The Group settings can have the optional one-letter acronym S attached to the
command; you can enter SET 1 or SET S 1 for Group 1 settings, SET 2 or
SET S 2 for Group 2 settings, etc. If you do not specify which group to set, the
relay defaults to the present active group. If Group 6 is the active group, and
you type SET <Enter>, for example, you will see the settings prompts for the
Group 6 settings.
Settings: 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 4.11 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
? action
prompt.
Table 4.6 lists the operations possible from a settings action prompt.
Figure 4.11 Components of SET Commands
When you exit settings entry from the SET commands, the relay responds,
Save settings (Y,N) ?. If you answer Y <Enter>, the relay writes the new
settings to nonvolatile storage. If you answer N <Enter>, the relay discards
any settings changes you have made.
Table 4.6 Actions at Settings Prompts
Action Relay Response
<Enter> Accept setting and move to the next setting; if at the last setting, exit
settings.
[value]
<Enter> Enter the given value and move to the next setting if valid; if at the
last setting, exit settings.
^ <Enter> Move to the previous setting; if at the top of settings, stay at the
present setting.
< <Enter> Move to the top of the previous settings category; if at the top of set-
tings, stay at the present setting.
> <Enter> Move to the top of the next settings category; if in the last category,
exit settings.
END <Enter> Go to the end of the present settings session. Prepare to exit settings
via the
Save settings (Y,N) ? prompt.
<Ctrl+X> Abort the editing session without saving changes.
=>>SET G <Enter>
Global
General Global Settings
Station Identifier (40 characters)
SID := "Station A"
? <Enter>
Relay Identifier (40 characters)
RID := "Relay 1"
? <Enter>
Number of Breakers in Scheme (1,2) NUMBK := 1 ? <Enter>
Category
Prompt
Present Value
Action Prompt
Prompt
Present
Action
Value
Prompt
Courtesy of NationalSwitchgear.com