Section 1 1MAC308145-MB E
Introduction
 6 RER620
Application Manual
Although warning hazards are related to personal injury, it should be understood that 
operation of damaged equipment could, under certain operational conditions, result in 
degraded process performance leading to personal injury or death. Therefore, comply fully 
with all warning and caution notices.
1.4.2 Manual conventions
Conventions used in relay manuals. 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 between the options, use   and  .
• HMI menu paths are presented in bold, for example:
Select Main menu > Settings.
• LHMI messages are shown in Courier font, for example:
To save the changes in non-volatile memory, select Yes and press  .
• Parameter names are shown in italics, for example:
The function can be enabled and disabled with the Operation setting.
• Parameter values are indicated with quotation marks, for example:
The corresponding parameter values are “Enabled” and “Disabled”.
• Relay input/output messages and monitored data names are shown in Courier font, for 
example:
When the function picks up, the PICKUP output is set to TRUE.
• Dimensions are provided both in inches and mm. If it is not specifically mentioned 
then the dimension is in mm.
• Analog inputs to protection functions are shown in the technical manual for clarity 
however these inputs and connections do not appear in the application logic. The 
connection of these analog signals is fixed internally to the corresponding function 
blocks and cannot be altered by users.
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 to important facts and conditions.
The tip icon indicates advice on, for example, how to design your project 
or how to use a certain function.