1.5
Symbols and conventions
1.5.1
Symbols
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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.
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
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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
and
.
•
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 more details about document conventions.
Section 1
1MRK 511 451-UEN Rev. C
Introduction
4
Distributed busbar protection REB500
Communication protocol manual IEC 60870-5-103
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