4.4
LCD
4.4.1
Medium
The following case sizes can be equipped with the medium size LCD:
•
1/2 x 19”
•
3/4 x 19”
•
1/1 x 19”
This is a fully graphical monochrome LCD which measures 4.7 x 3.5 inches. It has 28
lines with up to 40 characters per line. To display the single line diagram, this LCD is
required.
4.5
LED
4.5.1
Introduction
The LED module is a
unidirectional means of communicating
. This means that events
may occur that activate a LED in order to draw the operators attention to something
that has occurred and needs some sort of action.
4.5.2
Status indication LEDs
The three LEDs above the LCD provide information as shown in the table below.
LED Indication
Information
Green:
Steady
In service
Flashing
Internal failure
Dark
No power supply
Yellow:
Steady
Dist. rep. triggered
Flashing
Terminal in test mode
Red:
Steady
Trip command issued
Section 4
1MRK506276-UUS B
Understand the local human-machine interface
22
Operator's manual
