Schweitzer Engineering Laboratories SEL-787 - Human-Machine Interface; Figure 8.1 Front-Panel Overview

8.2
SEL-787 Relay Instruction Manual Date Code 20081022
Front-Panel Operations
Human-Machine Interface
Figure 8.1 Front-Panel Overview
This versatile front panel supports the following features so you can customize
it for your needs:
➤ Rotating display on the HMI
➤ Programmable target LEDs
➤ Programmable pushbutton LEDs
➤ Slide-in configurable front-panel labels to change the
identification of target LEDs, pushbuttons, pushbutton LEDs
and their operation.
Human-Machine Interface
Contrast
You can adjust the LCD screen contrast to suit your viewing angle and
lighting conditions. To change screen contrast, press and hold the {ESC}
pushbutton for two seconds. The SEL-787 displays a contrast adjustment box.
Pressing the {Right Arrow} pushbutton increases the contrast. Pressing the {Left
Arrow} pushbutton decreases the screen contrast. When you are finished
adjusting the screen contrast, press the {ENT} pushbutton; this process is a
shortcut for changing the LCD contrast setting FP_CONT in the front-panel
settings.
Relay Powered Properly And Self-Tests Are Okay
Trip Occurred
Differential Trip
Instantaneous/Definite-Time Overcurrent Trip
Time Overcurrent Trip
Over/Undervoltage Trip
Over/Underfrequency Trip
Volts/Hertz
ENABLED
LOCK
DISABLED
BRKR 1
SELECT
BRKR 2
BRKR 1 CLOSED
CLOSE
BRKR 2 CLOSED
BRKR 1 OPEN
TRIP
BRKR 2 OPEN
SEL-787
TRANSFORMER PROTECTION RELAY
ENABLED
TRIP
DIFFERENTIAL
INST. OVERCURRENT
TIME OVERCURRENT
OVER/UNDERVOLTAGE
OVER/UNDERFREQUENCY
VOLTS/HERTZ
NOTE: See the Preface for an
explanation of typographic
conventions used to describe menus,
the front-panel display, and the front-
panel pushbuttons.