Sel 411L - SEL OGIC Control Equation Setting Structure

P.14.6
SEL-411L Relay Protection Manual Date Code 20151029
SELOGIC Control Equation Programming
SEL
OGIC Control Equation Setting Structure
NOTE: During troubleshooting or
testing, reenter a line and insert the
comment character to disable it. Enter
the line without the comment
character to enable the line later
when you want it to be executed.
Comments are a powerful documentation tool for helping both you and others
understand the intent of programming and configuration in the relay. You can
use comments liberally; comments do not reduce SEL
OGIC control equation
execution capacity.
SELOGIC Control Equation Setting Structure
The relay uses SELOGIC control equations in three major areas. First, you can
customize protection operations with SEL
OGIC control equation settings and
free-form programming. Second, there is a free-form programming area for
more sophisticated automation SEL
OGIC control equation programming.
Third, there is a fixed area for relay output programming. The SEL
OGIC
control equation programming areas are shown in Figure 14.2. There are also
a small number of fixed SEL
OGIC control equations in other settings areas
including front-panel settings that allow you to customize relay features not
directly related to protection or automation.
Figure 14.2 SELOGIC Control Equation Programming Areas
Protection
Protection SELOGIC control equation programming includes a fixed area and a
free-form area. You can configure many protection settings within the relay
(for example TR) with fixed SEL
OGIC control equation programming. Use
these settings to control protection operation and customize relay operation.
The programming and operation of fixed SEL
OGIC control equations in this
area is very similar to programming in SEL-300 series relays.
Automation SELOGIC
Control Equation Programming
Block 10
Block 9
Block 8
Block 7
Block 6
Block 5
Block 4
Block 3
Block 2
Free-Form SEL
OGIC
Control Equation
Programming
Block 1
Fixed SEL
OGIC
Control Equation
Settings
Free-Form SEL OGIC
Control Equation
Programming
Fixed SEL OGIC
Control Equation
Settings
Output Settings
Protection Settings Group 6
Protection Settings Group 5
Protection Settings Group 4
Protection Settings Group 3
Protection Settings Group 2
Protection Settings Group 1