Sel 411L - Figure 7.1 Front Panel (12 Pushbutton Model); Front-Panel Layout; Section 7: Front-Panel Operations

Date Code 20151029 Protection Manual SEL-411L Relay
Section 7
P.Protection Manual
Front-Panel Operations
The front panel makes power system data collection and system control quick
and efficient. Using the front panel, you can analyze power system operating
information, view and change relay settings, and perform relay control
functions. The relay features a straightforward menu-driven control structure
presented on the front-panel liquid crystal display (LCD). Front-panel targets
and other LED indicators give a quick look at the relay’s operation status. You
can perform often-used control actions rapidly by using the large direct-action
pushbuttons. All of these features help you operate the relay from the front
panel and include:
➤ Reading metering
➤ Inspecting targets
➤ Accessing settings
➤ Controlling relay operations
This section includes the following:
➤ Front-Panel Layout on page P.7.1
➤ Front-Panel Menus and Screens on page P.7.12
➤ Front-Panel Automatic Messages on page P.7.35
➤ Operation and Target LEDs on page P.7.36
➤ Front-Panel Operator Control Pushbuttons on page P.7.41
Front-Panel Layout
The front panel for the horizontal 4U configuration is shown in Figure 7.1
(other configurations are similar).
Figure 7.1 Front Panel (12 Pushbutton Model)
EIA-232
Serial Port
Liquid Crystal
Display (LCD)
and Navigation
Pushbuttons
Operation
and Trip
Target LEDs
Direct-Action
Pushbuttons
and Indicators