Symbols And Conventions; Symbols; Document Conventions - ABB RELION REB500 Operation Manual

Section 1
Introduction
1.5

Symbols and conventions

1.5.1

Symbols

Although warning hazards are related to personal injury, it is necessary to understand that under certain
operational conditions, operation of damaged equipment may result in degraded process performance
leading to personal injury or death. Therefore, comply fully with all warning and caution notices.
1.5.2

Document conventions

A particular convention may not be used in this manual.
• Abbreviations and acronyms in this manual are spelled out in the glossary. The glossary also
contains definitions of important terms.
• Push button navigation in the LHMI menu structure is presented by using the push button icons.
For example, to navigate the options, use
• HMI menu paths are presented in bold.
For example, select Main menu/Settings .
• Signal names are presented in bold.
The signal 21120_EXT_TEST_TRIP can be set and reset via the LHMI Test Trip menu.
• Parameter names and parameter values are presented in italics.
For example, the default value of the Operation setting is Not inverted.
• Section references are presented with the respective section numbers.
For example, see
• The phase names L1, L2, L3, and L0 should be read as phase A,B,C, and N respectively.
• The term Disturbance recorder should be read as Digital Fault Recorder in the document.
• The term Single-line diagram should be read as One-line diagram in the document.
• OFF is used for Disabled and On is used for Enabled in Settings.
• The term Isolator is used in the the HMI500 menus and the LHMI menus, and should be read as
Disconnector.
6
The electrical warning icon indicates the presence of a hazard which could result in
electrical shock.
The warning icon indicates the presence of a hazard which could result in personal
injury.
The caution icon indicates important information or warning related to the concept
discussed in the text. It might indicate the presence of a hazard which could result in
corruption of software or damage to equipment or property.
The information icon alerts the reader of important facts and conditions.
The tip icon indicates advice on, for example, how to design your project or how to use a
certain function.
Section 1.5.2 for more details about document conventions.
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Operation manual