ABB REF 54 Series, Operator'S Manual, Page: 6 / 36

6
1MRS 750500-MUM
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Operator’s Manual
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The front panel of the terminal includes:
• graphical LCD display, with the resolution 128 x 160 pixels, consisting of 19
rows divided into two windows
• main window (17 rows) providing detailed information on MIMIC, objects,
events, measurements, control alarms and parameters of the terminal
• assisting window (2 rows) for terminal-dependent protection indications and
alarms, and for general help messages
• three push-buttons for object control
• eight freely programmable alarm LED indicators with different colours and
modes according to the configuration (off, green, yellow, red, steady, blinking)
• LED indicator for control test and interlocking
• three protection LED indicators
• HMI push-button section with four arrow buttons and buttons for clear [C] and
enter [E]
• optically isolated serial communication port
• backlight and contrast control
• freely programmable button [F]
• button for remote/local control (Control position button [R\L])
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releleds
R
REF 541
Uaux = 80...265 Vdc/ac
fn = 50 Hz
In = 1/5 A (I)
1MRS xxxxxx
98150
9509
Ion = 1/5 A (Io)
Un = 100/110 V (U)
Uon = 100/110 V (Uo)
C
E
ABB
R
L
F
I
0
R L
21 kV
CB OK
AROFF
Programmable LEDs
Object control buttons:
Close
Open
Select
Control position button
Optical PC
connector
Freely programmable
button
Control test &
Interlocking LED
Protection LED indicators:
Left: Ready, IRF, Test mode
Middle: Start, Block
Right: Trip, CBFP
Graphical
LCD display
Main window Assisting window
Enter/Return Clear/Cancel Navigation
buttons