Sel 551 - Conventions

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SEL-551 Relay Instruction Manual Date Code 20110408
Preface
Conventions
Typographic
Conventions
There are three ways to communicate with the SEL-551:
➤ Using a command line interface on a PC terminal emulation
window.
➤ Using the front-panel menus and pushbuttons.
➤ Using ACSELERATOR QuickSet
®
SEL-5030 Software
The instructions in this manual indicate these options with specific font and
formatting attributes. The following table lists these conventions:
Typographic Conventions
Examples
This instruction manual uses several example illustrations and instructions to
explain how to effectively operate the SEL-551. These examples are for
demonstration purposes only; the firmware identification information or
settings values included in these examples may not necessarily match those in
the current version of your SEL-551.
Safety Information
This manual uses three kinds of hazard statements, formatted as follows:
Indicates a potentially hazardous
situation that, if not avoided, may
result in minor or moderate injury or
equipment damage.
!
CAUTION
Indicates a potentially hazardous
situation that, if not avoided, could
result in death or serious injury.
!
WARNING
Indicates an imminently hazardous
situation that, if not avoided, will
result in death or serious injury.
!
DANGER
Example Description
STATUS Commands typed at a command line interface on a PC.
<Enter> Single keystroke on a PC keyboard.
<Ctrl+D> Multiple/combination keystroke on a PC keyboard.
Start > Settings PC software dialog boxes and menu selections.
The > character indicates submenus.
{CLOSE} Relay front-panel pushbuttons.
ENABLE
Relay front- or rear-panel labels.
MAIN > METER
Relay front-panel LCD menus and relay responses visible on
the PC screen.
The > character indicates submenus.